CN103152390A - Method and device and nodes and system for node configuration of distributed storage system - Google Patents
Method and device and nodes and system for node configuration of distributed storage system Download PDFInfo
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Abstract
An embodiment of the invention provides a method, a device, nodes and a system for node configuration of a distributed storage system. The method includes that a first node modifies benchmark configuration information; and the first node updates local configuration information to be identical with the benchmark configuration information, and sends synchronous information to other nodes to update configuration information of other nodes to be identical with the benchmark configuration information. According to the method, the device, the nodes and the system for the node configuration of the distributed storage system, in-time updating of local configuration information of various nodes can be achieved.
Description
Technical field
The embodiment of the present invention relates to the communication technology, relates in particular to a kind of node configuration method, device, node and system of distributed memory system.
Background technology
Increasingly progressive along with computer technology, distributed memory system is widely used at industry-by-industry.Distributed memory system is mainly that (Storage Area Network, be called for short: the memory device SAN) and a plurality of node form by storage area network.Wherein, each node can be for being equipped with the computer of corresponding distributed storage software, and the data of storing on memory device are for each nodes sharing.In distributed memory system, when any one node changes, need each node to revise the storage nodes configuration information; And along with the increase of distributed memory system scale, node is more and more, has also improved for the difficulty of the management of distributed memory system.
In the prior art distributed memory system, the configuration information of each node in distributed system is stored on shared memory device, each node periodically scans the configuration information on memory device, if configuration information changes, upgrades the local configuration information of preserving of this node.
But there is the untimely problem of configuration information update time of each node this locality in the distributed memory system of prior art.
Summary of the invention
The embodiment of the present invention provides a kind of node configuration method, device, node and system of distributed memory system, to realize upgrading in time the configuration information of each node this locality.
First aspect, the embodiment of the present invention provide a kind of node configuration method of distributed memory system, comprising: first node is revised baseline configuration information; Described first node upgrades local configuration information to consistent with described baseline configuration information, and it is extremely consistent with described baseline configuration information with the configuration information that upgrades other nodes to send synchronization message to other nodes.
In the possible implementation of the first of first aspect, described first node is revised baseline configuration information and comprised: described first node is revised and is stored in shared storage device or the baseline configuration information in any node.
In the possible implementation of the second of first aspect, described first node is revised baseline configuration information and comprised: described first node is as node to be added, and the node configuration information of this locality is added in described baseline configuration information; Perhaps, described first node is deleted the node configuration information of this locality as withdrawing from node from described baseline configuration information.
The implementation possible according to the second of first aspect in the third possible implementation, before described first node is revised baseline configuration information, also comprises: described first node sends the request message of revising configuration to other nodes; Described first node triggers and carries out retouching operation after the response message that other nodes that receive predetermined number send.
The implementation possible according to the second of first aspect, in the 4th kind of possible implementation, described first node is as node to be added, and before being added into the node configuration information of this locality in described baseline configuration information, also comprise: described first node reads described baseline configuration information; Described first node is judged when having the idle node item in described baseline configuration information, and triggering following is added operation.
According to any one of four kinds of possible implementations of the first to the of first aspect, first aspect, in the 5th kind of possible implementation, before described first node was revised baseline configuration information, also comprise: described first node obtained the exclusive read/write authority of described baseline configuration information; Upgrade local configuration information to consistent with described baseline configuration information at described first node, and to other nodes send synchronization messages with the configuration information that upgrades other nodes to after described baseline configuration information is consistent, also comprise: the exclusive read/write authority of described first node release to described baseline configuration information.
In the 6th kind of possible implementation of first aspect, also comprise: described first node receives the synchronization message that other nodes send; Described first node upgrades local configuration information according to the configuration information in described synchronization message.
According to any one of four kinds of possible implementations of the first to the of first aspect, first aspect, in the 7th kind of possible implementation, described first node is revised baseline configuration information and comprised: described first node is revised the node configuration information in described baseline configuration information; Described first node is updated to latest edition with the version number in baseline configuration information.
According to the 7th kind of possible implementation of first aspect, in the 8th kind of possible implementation, described first node is updated to latest edition with the version number in baseline configuration information and comprises: described first node adds one with the version number in baseline configuration information.
The 7th kind of possible implementation according to first aspect in the 9th kind of possible implementation, also comprises: described first node receives first and checks message, and described first checks message comprises version number in configuration information; Version number in the configuration information of described first node comparison local record and described the first version number of checking in message; When comparative result be in the configuration information of local record version number greater than described first check in message version number the time, the configuration information of this locality is carried at first checks and return to the described first promoter who checks message in response, perhaps the version number of the configuration information of this locality is carried at first and checks and return to the described first promoter who checks message in response; When comparative result be in the configuration information of local record version number less than described first check in message version number the time, according to the configuration information of described baseline configuration information updating this locality.
The 9th kind of possible implementation according to first aspect in the tenth kind of possible implementation, also comprises: described first node sends first to other nodes and checks message; When receive that other nodes return first when checking response, check the configuration information of the configuration information update this locality in response according to described first, perhaps, according to the configuration information of described baseline configuration information updating this locality.
The 7th kind of possible implementation according to first aspect in the 11 kind of possible implementation, also comprises: described first node receives second and checks message, and described second checks message comprises configuration information; Version number in the configuration information of described first node comparison local record and described the second version number of checking in message; When comparative result be in the configuration information of local record version number greater than described second check in message version number the time, the configuration information of this locality is carried at second checks and return to the described second promoter who checks message in response, perhaps version number's band of the configuration information of this locality is returned to the described second promoter who checks message in second checks response; When comparative result be in the configuration information of local record version number less than described second check in message version number the time, check the configuration information of the configuration information update this locality in message according to described second.
According to the 11 kind of first aspect possible implementation, in the 12 kind of possible implementation, also comprise: described first node sends second to other nodes and checks message; When receive that other nodes return second when checking response, check the configuration information of the configuration information update this locality in response according to described second, perhaps, according to the configuration information of described baseline configuration information updating this locality.
Second aspect, the embodiment of the present invention provide a kind of node inking device of distributed memory system, comprising: modified module is used for revising baseline configuration information; Synchronization module, extremely consistent with described baseline configuration information for upgrading local configuration information, and it is extremely consistent with described baseline configuration information with the configuration information that upgrades other nodes to send synchronization messages to other nodes.
In the possible implementation of the first of second aspect, described modified module specifically is used for: revise the baseline configuration information that is stored in shared storage device or any node.
In the possible implementation of the second of second aspect, described modified module specifically is used for: the node at described modified module place is as node to be added, and the node configuration information of this locality is added in described baseline configuration information; Perhaps, the node at described modified module place is deleted the node configuration information of this locality as withdrawing from node from described baseline configuration information.
The implementation possible according to the second of second aspect in the third possible implementation, also comprises: request module is used for sending to other nodes the request message of revising configuration; Reply node number judge module, be used for triggering and carrying out retouching operation after the response message that other nodes that receive predetermined number send.
The implementation possible according to the second of second aspect, in the 4th kind of possible implementation, the node at described modified module place also comprises as node to be added: read module is used for reading described baseline configuration information; Idle node item judge module, when being used for judging described baseline configuration information and having the idle node item, triggering following is added operation.
According to any one of four kinds of possible implementations of the first to the of second aspect, second aspect, in the 5th kind of possible implementation, also comprise: exclusive read/write authority acquiring module, be used for obtaining the exclusive read/write authority of described baseline configuration information before described modified module is revised baseline configuration information; Exclusive read/write authority release module, be used for upgrading local configuration information to consistent with described baseline configuration information at described synchronization module, and to other nodes send synchronization messages with the configuration information that upgrades other nodes to after described baseline configuration information is consistent, the exclusive read/write authority of release to described baseline configuration information.
The 6th kind of possible implementation in second aspect also comprises: the synchronization message receiver module is used for receiving the synchronization message that other nodes send; Synchronous update module is used for the configuration information according to described synchronization message, upgrades local configuration information.
According to four kinds of possible implementations of the first to the of second aspect, second aspect any one, in the 7th kind of possible implementation, it is characterized in that, described modified module specifically is used for: the node configuration information of revising described baseline configuration information; Version number in baseline configuration information is updated to latest edition.
According to the 7th kind of possible implementation of second aspect, in the 8th kind of possible implementation, described modified module specifically is used for: the version number of baseline configuration information is added one.
According to the 7th kind of possible implementation of second aspect, in the 9th kind of possible implementation, also comprise: first checks the message sink module, be used for to receive first and checks message, and described first checks message comprises version number in configuration information; Front page this shop comparison module is used for relatively version number and described first version number of checking in message of the configuration information of local record; First checks respond module, be used for when comparative result be local record configuration information version number greater than described first check in message version number the time, the configuration information of this locality is carried at first checks and return to the described first promoter who checks message in response, perhaps the version number of the configuration information of this locality is carried at first and checks and return to the described first promoter who checks message in response; First checks update module, be used for when comparative result be local record configuration information version number less than described first check in message version number the time, according to the configuration information of described baseline configuration information updating this locality.
According to the 9th kind of possible implementation of second aspect, in the tenth kind of possible implementation, also comprise: first checks message transmission module, is used for sending first to other nodes and checks message; First checks response processing module, is used for when first checking when responding of receiving that other nodes return, and checks the configuration information of the configuration information update this locality in response according to described first, perhaps, and according to the configuration information of described baseline configuration information updating this locality.
According to the 7th kind of possible implementation of second aspect, in the 11 kind of possible implementation, also comprise: second checks the message sink module, is used for receiving second and checks message, and described second checks message comprises configuration information; Second edition this shop comparison module is used for version number and described second version number of checking in message of the configuration information of described first node comparison local record; Second checks respond module, be used for when comparative result be local record configuration information version number greater than described second check in message version number the time, the configuration information of this locality is carried at second checks and return to the described second promoter who checks message in response, perhaps version number's band of the configuration information of this locality is returned to the described second promoter who checks message in second checks response; Second checks update module, be used for when comparative result be local record configuration information version number less than described second check in message version number the time, check the configuration information of the configuration information update this locality in message according to described second.
According to the 11 kind of second aspect possible implementation, in the 12 kind of possible implementation, also comprise: second checks message transmission module, is used for sending second to other nodes and checks message; Second checks response processing module, is used for when second checking when responding of receiving that other nodes return, and checks the configuration information of the configuration information update this locality in response according to described second, perhaps, and according to the configuration information of described baseline configuration information updating this locality.
The third aspect, the embodiment of the present invention provides a kind of node of distributed memory system, comprise: at least one processor, at least one network interface, at least one user interface, memory and at least one communication bus, and described processor comprises the node inking device of the described distributed memory system of any embodiment of the present invention.
Fourth aspect, the embodiment of the present invention provide a kind of distributed memory system, comprising: at least one node and shared storage device, wherein, described at least one node adopts the node of the described distributed memory system of any embodiment of the present invention.
The node configuration method of the distributed memory system that the embodiment of the present invention provides, device, node and system, by after first node is revised baseline configuration information, send synchronization message to other nodes extremely consistent with described baseline configuration information with the configuration information that upgrades other nodes, realization is after baseline configuration information changes, in time notice arrives all nodes, thereby can guarantee the configuration information real-time update on each node.
Description of drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, the below will do one to the accompanying drawing of required use in embodiment or description of the Prior Art and introduce simply, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Figure 1A is the flow chart of the node configuration method embodiment one of distributed memory system of the present invention;
The network architecture schematic diagram of the distributed memory system that node configuration method was suitable for of the distributed memory system that Figure 1B provides for the embodiment of the present invention;
Fig. 2 is the flow chart of the node configuration method embodiment two of distributed memory system of the present invention;
Fig. 3 is the flow chart of the node configuration method embodiment three of distributed memory system of the present invention;
Fig. 4 is the flow chart of the node configuration method embodiment four of distributed memory system of the present invention;
Fig. 5 is the flow chart of the node configuration method embodiment five of distributed memory system of the present invention;
Fig. 6 is the structural representation of the node inking device embodiment one of distributed memory system of the present invention;
Fig. 7 is the structural representation of the node inking device embodiment two of distributed memory system of the present invention;
Fig. 8 is the flow chart of the node inking device embodiment three of distributed memory system of the present invention;
Fig. 9 is the structural representation of the node inking device embodiment four of distributed memory system of the present invention;
Figure 10 is the structural representation of the node inking device embodiment five of distributed memory system of the present invention;
Figure 11 is the structural representation of the node embodiment of distributed memory system of the present invention;
Figure 12 is the structural representation of distributed memory system embodiment of the present invention.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
The described distributed memory system of the embodiment of the present invention can be made of a plurality of nodes and shared storage device, communicate by Ethernet or local area network (LAN) between each node and between each node and shared storage device, wherein, shared storage device is used for the storage data, and deployment has the distributed file management assembly thereon, by the management of this distributed file management assembly realization to data, shared storage device can or can supply the memory device of each node visit, for example hard disk for certain for computer, server; Each node can be computer or server, the distributed system assembly is installed on it, each node can pass through the distributed file management assembly on this distributed system component accesses shared storage device, and by the data on this distributed system assembly management shared storage device; And the distributed system assembly on each node can comprise a kind of kernel thread, and the effect of this kernel thread is the consistency of safeguarding each node configuration information in distributed system.
Figure 1A is the flow chart of the node configuration method embodiment one of distributed memory system of the present invention, the network architecture schematic diagram of the distributed memory system that node configuration method was suitable for of the distributed memory system that Figure 1B provides for the embodiment of the present invention, this distributed memory system comprises a plurality of nodes, shared storage device and network link equipment, each node can intercom mutually by network link equipment, and can be by the data on network link device access and modification shared storage device.The executive agent of the present embodiment can be the kernel thread in the distributed system assembly on any one node, and for clarity sake, the node that will carry out following method in the present embodiment is called first node, and other node is called Section Point.As shown in Figure 1A, the method for the present embodiment can comprise:
Usually, baseline configuration information can be stored in shared storage device, particularly, can be in distributed file system be disposed the process of shared storage device, reserve a public domain on shared storage device, this zone is used for preserving the baseline configuration information to the node configuration information of distributed memory system.
Perhaps, baseline configuration information also can be stored in any one node, particularly, if baseline configuration information is stored in a certain node, can reserve a public domain on the memory device of this node, this zone is used for preserving the baseline configuration information to the node configuration information of distributed memory system.
Therefore, step 101 is when specific implementation, and the position that described first node can be deposited according to described baseline configuration information revises being stored in shared storage device or the baseline configuration information in any node.
The node configuration information of distributed memory system for example can comprise: maximum node number is used for the maximum interstitial content of supporting of this distributed memory system of mark; Existing node number: what nodes the current distributed memory system of mark exists; The node configuration information table can be deposited a node configuration information with each list item, and wherein, node configuration information can comprise node IP information or other can be converted into the data message of node IP; The version number of this node configuration information, for the version of the current configuration of mark, to guarantee the consistency of system configuration information in distributed memory system, this version number can order increase progressively.
During actual the realization, because first node in step 101 need to be revised described baseline configuration information, if described first node is computer, so, usually in first node described in modification process will be stored in the internal memory of described first node with described baseline configuration information; In the synchronization message of other nodes transmissions, can comprise following information: the node identification of type of message, described first node and version number.The purpose that sends synchronization message is for after each modification configuration information, to notify in time other nodes: " first node is revised configuration information ".And other nodes are when receiving this synchronization message, can be according to its local configuration information of described baseline configuration information updating.
Perhaps, also can carry the full content of described baseline configuration information in described synchronization message, like this, other nodes can directly upgrade its local configuration information of preserving according to described synchronization message when receiving this synchronization message.
Consider that may there be the situation that synchronization message rear section node can not successfully receive that sends in the more distributed memory system of interstitial content, therefore, described first node can repeatedly send synchronization message, particularly, the send mode of described synchronization message can for: within a period of time of presetting, send according to certain frequency.
The scheme of prior art, each node be in order to upgrade the local configuration information of preserving, and need to regularly check node configuration information on shared storage device to judge whether needing the to upgrade local configuration information of preserving, and this just easily causes storing link and occurs blocking up.And in the present embodiment, owing to can communicating by letter mutually with timely notice between each node and receiving the message that configuration information has modification, therefore do not need each node regular visit shared storage device, only just need to access shared storage device when receiving synchronization message, even can not need to access shared storage device and can complete renewal, access simultaneously the storage link that the situation of the node configuration information on shared storage device causes and block up thereby can avoid occurring continually each node.
The present embodiment, by after first node is revised baseline configuration information, upgrade local configuration information, and it is extremely consistent with described baseline configuration information with the configuration information that upgrades other nodes to send synchronization message to other nodes, realization is after baseline configuration information changes, in time notice arrives all nodes, thereby can guarantee the configuration information real-time update on each node.
Further, above-described embodiment, described first node are revised baseline configuration information and can be comprised: described first node is as node to be added, and the node configuration information of this locality is added in described baseline configuration information; Or described first node is deleted the node configuration information of this locality as withdrawing from node from described baseline configuration information.
Need to prove, when node is withdrawed from the first node conduct, the configuration information deletion that this locality can be preserved after withdrawing from.
Fig. 2 is the flow chart of the node configuration method embodiment two of distributed memory system of the present invention; the method of the present embodiment is on the basis of above-described embodiment; further increase some treatment steps so that the allocation plan of distributed memory system is more perfect, for example increased the process that the access limit revising the request process before baseline configuration information and use mutual exclusion is protected.The executive agent of the present embodiment can be the kernel thread in the distributed system assembly on first node, and wherein first node can be any one node in distributed memory system.As shown in Figure 2, the method for the present embodiment can comprise:
Step 201, first node obtain the exclusive read/write authority of described baseline configuration information.
Wherein, after first node obtains the exclusive read/write authority of described baseline configuration information, can guarantee to only have this first node can read and revise described baseline configuration information, therefore, can guarantee described baseline configuration information integrity.
When specific implementation, when first node obtains this exclusive read/write authority, the situation that may exist this exclusive read/write authority to be obtained by other nodes, at this moment, described first node can not successfully get this exclusive read/write authority, attempt obtaining after can waiting for default a period of time next time.
Further,, can also comprise during as node to be added when described first node:
And when node is withdrawed from described first node conduct, can skips steps 202 and step 203.
Particularly, in step 203, maximum node number and the existing node number of first node in can more described baseline configuration information to judge whether to exist the idle node item, if exist, can be carried out follow-up interpolation operation; If there is no, can abandon adding operation.
In the request message that the modification that sends to other nodes configures, can comprise following information: type of message, for example can be the type of message of " request " and the node identification of described first node, so that other nodes can be identified this message rapidly, and make different responses according to type of message.Particularly, for the type of message of " request ", can as long as send response message, need not carry out other operation.
Wherein, step 204 and step 205 are one group of optional step, its objective is before described first node is revised baseline configuration information, first confirm by these two steps in this distributed memory system, whether the communication between each node is normal.
During specific implementation, can also preset a stand-by period, if do not receive the response message that other nodes of predetermined number send within the stand-by period, can abandon adding operation.
During specific implementation, can adopt two kinds of strategy execution steps 205, wherein, strategy one is: the response message number that described first node receives need to equal the number of existing node, namely receives replying just of whole nodes and can add this distributed memory system; Strategy two is: the ratio of the response message number that receives according to first node and the number of existing node, this ratio can set in advance, and, after the node number of replying reaches the requirement that sets in advance, just can add this distributed memory system that is.
Further, when specific implementation, the modification baseline configuration information in step 206 can comprise: revise the node configuration information in described baseline configuration information; Version number in baseline configuration information is updated to latest edition.
Further preferably, the version number in baseline configuration information be updated to latest edition can for: the each modification all increases progressively version number, for example the version number in baseline configuration information can be added one.
After described first node has intactly been completed the modification of a configuration information, just discharge the exclusive read/write authority to described baseline configuration information, at this moment, other nodes could successfully get this exclusive read/write authority, thereby the step of pressing again the present embodiment is revised configuration information, therefore, can guarantee to revise each time all and intactly carry out.
The present embodiment by sending a request message to other nodes before revising baseline configuration information, and just triggers the modification configuration information when obtaining the response message of predetermined number, realize the confirmation that before revising, whether distributed memory system is worked; Guarantee to only have a node revising described baseline configuration information at synchronization by the access limit of using mutual exclusion, guarantee the integrality of revising; By at first node during as node to be added, have the idle node item in judging described baseline configuration information after triggering following add operation, guarantee to add the correctness of the process of node.
Fig. 3 is the flow chart of the node configuration method embodiment three of distributed memory system of the present invention, and the method for the present embodiment has further increased the processing procedure that first node receives the synchronization message that other nodes send on the basis of above-described embodiment.As shown in Figure 3, the method for the present embodiment can comprise:
Particularly, described first node can be checked baseline configuration information, and according to the configuration information of baseline configuration information updating this locality; Perhaps, if carried complete configuration information in described synchronization message, described first node can be directly according to the configuration information of the configuration information update this locality in described synchronization message.
The present embodiment, by when receiving the synchronization message of other nodes transmissions, according to the configuration information of the configuration information update this locality in described synchronization message, to guarantee that local configuration information can upgrade in time when the configuration information of decentralized configuration system changes.
Fig. 4 is the flow chart of the node configuration method embodiment four of distributed memory system of the present invention, the method of the present embodiment is on the basis of above-described embodiment, further increased a kind of processing procedure of checking configuration information, particularly, for the scene that may occur in above-described embodiment, synchronization message can't successfully send to every other node, so that the allocation plan of distributed memory system of the present invention is more perfect.The executive agent of the present embodiment can be the kernel thread in the distributed system assembly on first node, and wherein first node can be any one node in distributed memory system.As shown in Figure 4, the method for the present embodiment can comprise:
Wherein, the first promoter who checks message can be any one node, and the first transmission of checking message can be triggered by the user, also can according to the default cycle, periodically send.
When the promoter checks message in transmission first, can be set to send to every other node.
Described first checks message comprises version number in configuration information, and particularly, described first checks the version number that can only comprise in message in configuration information and promoter's node identification.
Version number in the configuration information of step 402, described first node comparison local record and described the first version number of checking in message.
Particularly, the present embodiment is based on the scheme that each modification all increases progressively the version number in baseline configuration information, for example version number is added one at every turn, the method of checking configuration information that provides, therefore, version number is higher, illustrates that configuration information corresponding to this version number is newer.
Step 403, when comparative result be in the configuration information of local record version number greater than described first check in message version number the time, the configuration information of this locality is carried at first checks and return to the described first promoter who checks message in response, perhaps the version number of the configuration information of this locality is carried at first and checks and return to the described first promoter who checks message in response.
Further, when the promoter receives other nodes, first node as described, that returns first checks when response, similarly, also can first compare version number and the first version number of checking in response in the configuration information of promoter's local record, if judge when needing to upgrade, can check the configuration information of the configuration information update this locality in response according to described first, perhaps, can be according to the configuration information of described baseline configuration information updating this locality.
Wherein, step 403 and step 404 are two steps arranged side by side.
The present embodiment, by the first version number of checking in message, the node that makes reception first check message can judge whether that needs upgrade the local configuration information of preserving according to version number; And, by receive when any one in the configuration information that first node determination of checking message goes out local record version number greater than described first check in message version number the time, return to first to described promoter and check response so that described promoter upgrades its local configuration information of preserving; Thereby the configuration information that realization is preserved all node updates separately; And because first of the present embodiment is checked and only carried version number in message and do not carry all configuration informations, therefore, first to check the needed data volume of message very little, thereby be convenient to save transfer resource.
Fig. 5 is the flow chart of the node configuration method embodiment five of distributed memory system of the present invention, the method of the present embodiment is on the basis of above-described embodiment, further increased the another kind of processing procedure of checking configuration information, particularly, for the scene that may occur in above-described embodiment, synchronization message can't successfully send to every other node, so that the allocation plan of distributed memory system of the present invention is more perfect.The executive agent of the present embodiment can be the kernel thread in the distributed system assembly on first node, and wherein first node can be any one node in distributed memory system.The scheme that the present embodiment provides is two schemes arranged side by side for the scheme with embodiment four, during actual the use, can select one according to the actual demand of distributed memory system.As shown in Figure 5, the method for the present embodiment can comprise:
Step 501, first node receive second and check message, and described second checks message comprises configuration information.
Wherein, the second promoter who checks message can be any one node, and the second transmission of checking message can be triggered by the user, also can according to the default cycle, periodically send.
When the promoter checks message in transmission second, can be set to send to every other node.
Second checks the configuration information that message comprises all nodes, during specific implementation, the promoter can be directly with the local configuration information of preserving of promoter or directly with all information in baseline configuration information, and promoter's node identification is carried at second and checks in message.
Version number in the configuration information of step 502, described first node comparison local record and described the second version number of checking in message.
Particularly, the present embodiment is based on the scheme that each modification all increases progressively the version number in baseline configuration information, for example version number is added one at every turn, the method of checking configuration information that provides, therefore, version number is higher, illustrates that configuration information corresponding to this version number is newer.
Step 503, when comparative result be in the configuration information of local record version number greater than described second check in message version number the time, the configuration information of this locality is carried at second checks and return to the described second promoter who checks message in response, perhaps version number's band of the configuration information of this locality is returned to the described second promoter who checks message in second checks response.
Further, when the promoter receives other nodes, first node as described, that returns second checks when response, similarly, also can first compare version number and the second version number of checking in response in the configuration information of promoter's local record, if judge when needing to upgrade, can check the configuration information of the configuration information update this locality in response according to described second, perhaps, can be according to the configuration information of described baseline configuration information updating this locality.
Step 504, when comparative result is version number in the configuration information of local record during less than the described version number of checking in message, check the configuration information of the configuration information update this locality in message according to described second.
The present embodiment, by sending the second version number of checking in message, the node that makes reception second check message can judge whether that needs upgrade the local configuration information of preserving according to version number; By receive when any one in the configuration information that second node determination of checking message goes out local record version number greater than described second check in message version number the time, return to second to described promoter and check response so that described promoter upgrades its local configuration information of preserving; Thereby the configuration information that realization is preserved all node updates separately; And, owing to carrying desired configuration information in second checks message, judge when needing to upgrade and can be directly to check the configuration information of the configuration information update this locality in message according to described second when receiving the second node of checking message, thereby can improve update efficiency.
Fig. 6 is the structural representation of the node inking device embodiment one of distributed memory system of the present invention, and the device of the present embodiment can be arranged on all nodes of distributed memory system.As shown in Figure 6, the device 600 of the present embodiment can comprise: modified module 1 and synchronization module 2, and wherein, modified module 1 is used for revising baseline configuration information; Synchronization module 2, extremely consistent with described baseline configuration information for upgrading local configuration information, and it is extremely consistent with described baseline configuration information with the configuration information that upgrades other nodes to send synchronization messages to other nodes.
The device of the present embodiment can possess corresponding functional module for the technical scheme of carrying out any means embodiment of the present invention, and it realizes that principle is similar, repeats no more herein.The device of the present embodiment, by after the node modification baseline configuration information at modified module place, send synchronization message to other nodes extremely consistent with described baseline configuration information with the configuration information that upgrades other nodes, realization is after baseline configuration information changes, in time notice arrives all nodes, thereby can guarantee the configuration information real-time update on each node.
Further, in above-described embodiment, baseline configuration information can be stored in shared storage device, also can be stored in any one node, therefore, modified module 1 specifically can be used for: revise the baseline configuration information that is stored in shared storage device or any node.
Further, in above-described embodiment, the node at modified module 1 place is during as node to be added, and modified module 1 specifically is used for: the node configuration information of this locality is added into described baseline configuration information; Perhaps, the node at modified module 1 place is when withdrawing from node, and modified module 1 specifically is used for: the node configuration information of this locality is deleted from described baseline configuration information.
Fig. 7 is the structural representation of the node inking device embodiment two of distributed memory system of the present invention, and the device 700 of the present embodiment has further increased some modules so that the allocation plan of distributed memory system is more perfect on the basis of above-described embodiment.As shown in Figure 7, the device of the present embodiment can also comprise: request module 3 and reply node number judge module 4, and wherein, request module 3 is used for sending to other nodes the request message of revising configuration; Replying node number judge module 4 is used for triggering and carrying out retouching operation after the response message that other nodes that receive predetermined number send.
Further, for the node at the device place of the satisfying the present embodiment scene as node to be added, the device of the present embodiment can also comprise: read module 5 and idle node item judge module 6, and wherein, read module 5 is used for reading described baseline configuration information; When idle node item judge module 6 was used for judging described baseline configuration information and has the idle node item, triggering following was added operation.
Further, in order to guarantee intactly to carry out the modification of baseline configuration information at every turn, the device of the present embodiment can also comprise: exclusive read/write authority acquiring module 7 and exclusive read/write authority release module 8, wherein, exclusive read/write authority acquiring module 7 is used for obtaining the exclusive read/write authority of described baseline configuration information before described modified module 1 is revised baseline configuration information; Exclusive read/write authority release module 8 is used for completing at described synchronization module upgrades local configuration information to consistent with described baseline configuration information, and to other nodes send synchronization messages with the configuration information that upgrades other nodes to after described baseline configuration information is consistent, the exclusive read/write authority of release to described baseline configuration information.
Further, described modified module 1 specifically can be used for: the node configuration information of revising described baseline configuration information; Version number in baseline configuration information is updated to latest edition.
Further, described modified module 1 is updated to latest edition with the version number in baseline configuration information, is specifically as follows: the version number in baseline configuration information is added one.
The device of the present embodiment can be used for be carried out the technical scheme of any means embodiment of the present invention, possess corresponding functional module, its realize principle and technique effect similar, repeat no more herein.
Fig. 8 is the flow chart of the node inking device embodiment three of distributed memory system of the present invention, the device 800 of the present embodiment is on the basis of above-described embodiment, further increased the functional module that is used for upgrading according to synchronization message the local configuration information of preserving, so that the allocation plan of distributed memory system is more perfect.As shown in Figure 8, the device of the present embodiment can also comprise: synchronization message receiver module 9 and synchronous update module 10, and wherein, synchronization message receiver module 9 is used for receiving the synchronization message that other nodes send; Synchronous update module 10 is used for the configuration information according to described synchronization message, upgrades local configuration information.
The device of the present embodiment can be used for be carried out the technical scheme of any means embodiment of the present invention, possess corresponding functional module, its realize principle and technique effect similar, repeat no more herein.
Fig. 9 is the structural representation of the node inking device embodiment four of distributed memory system of the present invention, the device 900 of the present embodiment is on the basis of above-described embodiment, further increased and a kind ofly checked functional module corresponding to scheme, so that the allocation plan of distributed memory system is more perfect.As shown in Figure 9, the device of the present embodiment can also comprise: first checks message sink module 11, front page this shop comparison module 12, first checks respond module 13 and first and checks update module 14, wherein, first checks message sink module 11 is used for receiving first and checks message, and described first checks message comprises version number in configuration information; Front page this shop comparison module 12 is used for relatively version number and described first version number of checking in message of the configuration information of local record; First check respond module 13 be used for when comparative result be local record configuration information version number greater than described first check in message version number the time, the configuration information of this locality is carried at first checks and return to the described first promoter who checks message in response, perhaps the version number of the configuration information of this locality is carried at first and checks and return to the described first promoter who checks message in response; First check update module 14 be used for when comparative result be local record configuration information version number less than described first check in message version number the time, according to the configuration information of described baseline configuration information updating this locality.
Further, for the device that satisfies the present embodiment as the first scene of checking the promoter of message, the device of the present embodiment can also comprise: first checks message transmission module 15 and first checks response processing module 16, wherein, first checks message transmission module 15, is used for sending first to other nodes and checks message; First checks response processing module 16, be used for when first checking when responding of receiving that other nodes return, check the configuration information of the configuration information update this locality in response according to described first, perhaps, according to the configuration information of described baseline configuration information updating this locality.
The device of the present embodiment can be used for be carried out the technical scheme of any means embodiment of the present invention, possess corresponding functional module, its realize principle and technique effect similar, repeat no more herein.
Figure 10 is the structural representation of the node inking device embodiment five of distributed memory system of the present invention, the device 1000 of the present embodiment is on the basis of above-described embodiment, further increased another kind and checked functional module corresponding to scheme, so that the allocation plan of distributed memory system is more perfect.As shown in figure 10, the device of the present embodiment can also comprise: second checks message sink module 21, second edition this shop comparison module 22, second checks respond module 23 and second and checks update module 24, wherein, second checks message sink module 21 can check message for receiving second, and described second checks message comprises configuration information; Second edition this shop comparison module 22 can be used for version number and described second version number of checking in message of the configuration information of described first node comparison local record; Second check respond module 23 can be used for when comparative result be local record configuration information version number greater than described second check in message version number the time, the configuration information of this locality is carried at second checks and return to the described second promoter who checks message in response, perhaps version number's band of the configuration information of this locality is returned to the described second promoter who checks message in second checks response; Second check update module 24 can be used for when comparative result be local record configuration information version number less than described second check in message version number the time, check the configuration information of the configuration information update this locality in message according to described second.
Further, for the device that satisfies the present embodiment as the second scene of checking the promoter of message, the device of the present embodiment can also comprise: second checks message transmission module 25 and second checks response processing module 26, wherein, second check message transmission module 25 and can be used for sending second to other nodes and check message; Second checks response processing module 26 can be used for when second checking when responding of receiving that other nodes return, check the configuration information of the configuration information update this locality in response according to described second, perhaps, according to the configuration information of described baseline configuration information updating this locality.
The device of the present embodiment can be used for be carried out the technical scheme of any means embodiment of the present invention, possess corresponding functional module, its realize principle and technique effect similar, repeat no more herein.
Figure 11 is the structural representation of the node embodiment of distributed memory system of the present invention.As shown in figure 11, the node 1100 of the distributed memory system of the present embodiment can comprise: at least one processor 1101, at least one network interface 1102, user interface 1103, memory 1104, and at least one communication bus 1105.Wherein, network interface 1102 node that is used for realizing the present embodiment and other nodes or other equipment by network carry out alternately; User interface 1103 is mutual for the node of realizing the present embodiment and user's; Communication bus 1105 is used for realizing the respectively connection communication between device; Memory 1104 may comprise the high-speed RAM memory, also may also comprise nonvolatile memory (English for non-volatilememory, hereinafter to be referred as NVM), for example at least one magnetic disc store.Memory 1104 optionally can comprise at least one storage device, and the various codes of storage etc. are used for realizing various basic businesses and processing hardware based task; Processor 1101 can comprise the node inking device of the described distributed memory system of invention any embodiment.
The node of the present embodiment can possess corresponding functional module for the technical scheme of carrying out any means embodiment of the present invention, and it realizes that principle is similar, repeats no more herein.
The node of the present embodiment, by after first node is revised baseline configuration information, send synchronization message to other nodes extremely consistent with described baseline configuration information with the configuration information that upgrades other nodes, realization is after baseline configuration information changes, in time notice arrives all nodes, thereby can guarantee the configuration information real-time update on each node.
Figure 12 is the structural representation of distributed memory system embodiment of the present invention.As shown in figure 12, the distributed memory system 1200 of the present embodiment can comprise: at least one node and shared storage device.need to prove, the distributed memory system that only comprises a node is a special case of the distributed memory system that provides of the embodiment of the present invention, and in most of the cases, distributed memory system can comprise at least two nodes, in figure with first node 1201, Section Point 1202 is described for example, with shared storage device 1203, wherein, first node 1201 and Section Point 1202 can adopt the node of the described distributed memory system of any embodiment of the present invention, it accordingly, can carry out the technical scheme of either method embodiment of the present invention, its realize principle and technique effect similar, repeat no more herein.
for the distributed memory system that only comprises a node, described in said method embodiment of the present invention: " first node upgrades local configuration information to consistent with described baseline configuration information, and to other nodes send synchronization messages with the configuration information that upgrades other nodes to consistent with described baseline configuration information " step can simplify processing, owing to there not being other nodes, therefore only need to carry out " first node upgrades local configuration information to consistent with described baseline configuration information ", can reach the technique effect that makes the configuration information real-time update on all nodes in distributed memory system.
One of ordinary skill in the art will appreciate that: all or part of step that realizes above-mentioned each embodiment of the method can be completed by the hardware that program command is correlated with.Aforesaid program can be stored in a computer read/write memory medium.This program is carried out the step that comprises above-mentioned each embodiment of the method when carrying out; And aforesaid storage medium comprises: the various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
It should be noted that at last: above each embodiment is not intended to limit only in order to technical scheme of the present invention to be described; Although with reference to aforementioned each embodiment, the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps some or all of technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the scope of various embodiments of the present invention technical scheme.
Claims (28)
1. the node configuration method of a distributed memory system, is characterized in that, comprising:
First node is revised baseline configuration information;
Described first node upgrades local configuration information to consistent with described baseline configuration information, and it is extremely consistent with described baseline configuration information with the configuration information that upgrades other nodes to send synchronization message to other nodes.
2. method according to claim 1, is characterized in that, described first node is revised baseline configuration information and comprised:
Described first node is revised and is stored in shared storage device or the baseline configuration information in any node.
3. method according to claim 1, is characterized in that, described first node is revised baseline configuration information and comprised:
Described first node is as node to be added, and the node configuration information of this locality is added in described baseline configuration information; Or
Described first node is deleted the node configuration information of this locality as withdrawing from node from described baseline configuration information.
4. method according to claim 3, is characterized in that, before described first node is revised baseline configuration information, also comprises:
Described first node sends the request message of revising configuration to other nodes;
Described first node triggers and carries out retouching operation after the response message that other nodes that receive predetermined number send.
5. method according to claim 3, is characterized in that, described first node is as node to be added, before being added into the node configuration information of this locality in described baseline configuration information, also comprises:
Described first node reads described baseline configuration information;
Described first node is judged when having the idle node item in described baseline configuration information, and triggering following is added operation.
6. according to claim 1～5 arbitrary described methods, is characterized in that,
Before described first node was revised baseline configuration information, also comprise: described first node obtained the exclusive read/write authority of described baseline configuration information;
Upgrade local configuration information to consistent with described baseline configuration information at described first node, and to other nodes send synchronization messages with the configuration information that upgrades other nodes to after described baseline configuration information is consistent, also comprise: the exclusive read/write authority of described first node release to described baseline configuration information.
7. method according to claim 1, is characterized in that, also comprises:
Described first node receives the synchronization message that other nodes send;
Described first node upgrades local configuration information according to the configuration information in described synchronization message.
8. according to claim 1-5 arbitrary described methods, is characterized in that, described first node is revised baseline configuration information and comprised:
Described first node is revised the node configuration information in described baseline configuration information;
Described first node is updated to latest edition with the version number in baseline configuration information.
9. method according to claim 8, is characterized in that, described first node is updated to latest edition with the version number in baseline configuration information and comprises:
Described first node adds one with the version number in baseline configuration information.
10. method according to claim 8, is characterized in that, also comprises:
Described first node receives first and checks message, and described first checks message comprises version number in configuration information;
Version number in the configuration information of described first node comparison local record and described the first version number of checking in message;
When comparative result be in the configuration information of local record version number greater than described first check in message version number the time, the configuration information of this locality is carried at first checks and return to the described first promoter who checks message in response, perhaps the version number of the configuration information of this locality is carried at first and checks and return to the described first promoter who checks message in response;
When comparative result be in the configuration information of local record version number less than described first check in message version number the time, according to the configuration information of described baseline configuration information updating this locality.
11. method according to claim 10 is characterized in that, also comprises:
Described first node sends first to other nodes and checks message;
When receive that other nodes return first when checking response, check the configuration information of the configuration information update this locality in response according to described first, perhaps, according to the configuration information of described baseline configuration information updating this locality.
12. method according to claim 8 is characterized in that, also comprises:
Described first node receives second and checks message, and described second checks message comprises configuration information;
Version number in the configuration information of described first node comparison local record and described the second version number of checking in message;
When comparative result be in the configuration information of local record version number greater than described second check in message version number the time, the configuration information of this locality is carried at second checks and return to the described second promoter who checks message in response, perhaps version number's band of the configuration information of this locality is returned to the described second promoter who checks message in second checks response;
When comparative result be in the configuration information of local record version number less than described second check in message version number the time, check the configuration information of the configuration information update this locality in message according to described second.
13. method according to claim 12 is characterized in that, also comprises:
Described first node sends second to other nodes and checks message;
When receive that other nodes return second when checking response, check the configuration information of the configuration information update this locality in response according to described second, perhaps, according to the configuration information of described baseline configuration information updating this locality.
14. the node inking device of a distributed memory system is characterized in that, comprising:
Modified module is used for revising baseline configuration information;
Synchronization module, extremely consistent with described baseline configuration information for upgrading local configuration information, and it is extremely consistent with described baseline configuration information with the configuration information that upgrades other nodes to send synchronization messages to other nodes.
15. device according to claim 14 is characterized in that, described modified module specifically is used for:
Modification is stored in shared storage device or the baseline configuration information in any node.
16. device according to claim 14 is characterized in that, described modified module specifically is used for:
The node at described modified module place is as node to be added, and the node configuration information of this locality is added in described baseline configuration information; Or
The node at described modified module place is deleted the node configuration information of this locality as withdrawing from node from described baseline configuration information.
17. device according to claim 16 is characterized in that, also comprises:
Request module is used for sending to other nodes the request message of revising configuration;
Reply node number judge module, be used for triggering and carrying out retouching operation after the response message that other nodes that receive predetermined number send.
18. device according to claim 16 is characterized in that, the node at described modified module place also comprises as node to be added:
Read module is used for reading described baseline configuration information;
Idle node item judge module, when being used for judging described baseline configuration information and having the idle node item, triggering following is added operation.
19. according to claim 14～18 arbitrary described devices is characterized in that, also comprise:
Exclusive read/write authority acquiring module is used for obtaining the exclusive read/write authority of described baseline configuration information before described modified module is revised baseline configuration information;
Exclusive read/write authority release module, be used for upgrading local configuration information to consistent with described baseline configuration information at described synchronization module, and to other nodes send synchronization messages with the configuration information that upgrades other nodes to after described baseline configuration information is consistent, the exclusive read/write authority of release to described baseline configuration information.
20. device according to claim 14 is characterized in that, also comprises:
The synchronization message receiver module is used for receiving the synchronization message that other nodes send;
Synchronous update module is used for the configuration information according to described synchronization message, upgrades local configuration information.
21. according to claim 14～18 arbitrary described devices is characterized in that, described modified module specifically is used for:
Revise the node configuration information in described baseline configuration information;
Version number in baseline configuration information is updated to latest edition.
22. device according to claim 21 is characterized in that, described modified module specifically is used for:
Version number in baseline configuration information is added one.
23. device according to claim 21 is characterized in that, also comprises:
First checks the message sink module, be used for to receive first and checks message, and described first checks message comprises version number in configuration information;
Front page this shop comparison module is used for relatively version number and described first version number of checking in message of the configuration information of local record;
First checks respond module, be used for when comparative result be local record configuration information version number greater than described first check in message version number the time, the configuration information of this locality is carried at first checks and return to the described first promoter who checks message in response, perhaps the version number of the configuration information of this locality is carried at first and checks and return to the described first promoter who checks message in response;
First checks update module, be used for when comparative result be local record configuration information version number less than described first check in message version number the time, according to the configuration information of described baseline configuration information updating this locality.
24. device according to claim 23 is characterized in that, also comprises:
First checks message transmission module, is used for sending first to other nodes and checks message;
First checks response processing module, is used for when first checking when responding of receiving that other nodes return, and checks the configuration information of the configuration information update this locality in response according to described first, perhaps, and according to the configuration information of described baseline configuration information updating this locality.
25. device according to claim 21 is characterized in that, also comprises:
Second checks the message sink module, is used for receiving second and checks message, and described second checks message comprises configuration information;
Second edition this shop comparison module is used for version number and described second version number of checking in message of the configuration information of described first node comparison local record;
Second checks respond module, be used for when comparative result be local record configuration information version number greater than described second check in message version number the time, the configuration information of this locality is carried at second checks and return to the described second promoter who checks message in response, perhaps version number's band of the configuration information of this locality is returned to the described second promoter who checks message in second checks response;
Second checks update module, be used for when comparative result be local record configuration information version number less than described second check in message version number the time, check the configuration information of the configuration information update this locality in message according to described second.
26. device according to claim 25 is characterized in that, also comprises:
Second checks message transmission module, is used for sending second to other nodes and checks message;
Second checks response processing module, is used for when second checking when responding of receiving that other nodes return, and checks the configuration information of the configuration information update this locality in response according to described second, perhaps, and according to the configuration information of described baseline configuration information updating this locality.
27. the node of a distributed memory system, comprise: at least one processor, at least one network interface, at least one user interface, memory and at least one communication bus, and described processor comprises the node inking device of the arbitrary described distributed memory system of claim 14～26.
28. a distributed memory system comprises: at least one node and shared storage device, it is characterized in that, described at least one node adopts the node of distributed memory system as claimed in claim 27.
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