CN104796445A - Resource synchronization method and device by server nodes - Google Patents
Resource synchronization method and device by server nodes Download PDFInfo
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- CN104796445A CN104796445A CN201410027678.9A CN201410027678A CN104796445A CN 104796445 A CN104796445 A CN 104796445A CN 201410027678 A CN201410027678 A CN 201410027678A CN 104796445 A CN104796445 A CN 104796445A
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1097—Protocols in which an application is distributed across nodes in the network for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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Abstract
The invention provides a resource synchronization method and device by server nodes. The method mainly comprises that a server IP address list which records IP addresses of the server nodes is managed in each server node in a distributed server system; and each server node transmits a heartbeat data packet carrying local resource information to the other server nodes in network connection, and resource synchronization is realized among the server nodes via the resource information carried in the heartbeat data packet. The server IP address list and a data resource list are managed in the server nodes, each server node transmits the heartbeat data packet carrying local resource information to the other server nodes in network connection, and thus, resource information carried in the heartbeat data packet is conveniently and automatically synchronized.
Description
Technical field
The present invention relates to technical field of the computer network, particularly relate to method, device that a kind of server node carries out source synchronous.
Background technology
A distributed server system has physics and the logical resource of many general, by dynamic distribution, the physics of dispersion and logical resource are supplied to user by computer network with the form of entirety, usually need one or more special server node to realize this function.
For distributed server system, in order to ensure that whole system externally provides service as a unified entirety, what between each server node, carry out the various resource such as address resource, data resource is synchronously very important.At present, also there is no a kind of method of automatically carrying out source synchronous between each server node, when the server node in system break down or artificial increase and remove time, all need outside to carry out extra control and management, realize the source synchronous between each server node.
Summary of the invention
The embodiment provides method, device that a kind of server node carries out source synchronous, to realize facilitating between each server node, automatically carrying out source synchronous.
The invention provides following scheme:
In distributed server system, server node carries out a method for source synchronous, comprising:
Management server IP address list in each server node in distributed server system, describe the IP address of multiple server node in this server ip address list, set up network between each server node recorded in the server ip address list of each server node and this locality and connect;
Each server node sends the heartbeat data packets of carrying local resource information to setting up with it other server node that network is connected, and carries out source synchronous by the resource information of carrying in described heartbeat data packets between each server node.
Management server IP address list in the described each server node in distributed server system, the IP address of multiple server node is described in this server ip address list, set up network between each server node recorded in the server ip address list of each server node and this locality to connect, comprising:
Management server IP address list in server node in distributed server system, describes the IP address of multiple server node in this server ip address list;
IP list characteristics value is generated according to the IP address of the multiple server nodes recorded in described server ip address list, the version value of described server ip address list that this IP list characteristics value is corresponding, described IP list characteristics value is kept at this locality by described server node;
Heartbeat listening port is set in described server node, sets up network between the heartbeat listening port of other server node recorded in this heartbeat listening port and described server ip address list and connect.
Described each server node sends the heartbeat data packets of carrying local resource information to setting up with it other server node that network is connected, between each server node, carry out source synchronous by the resource information of carrying in described heartbeat data packets, comprising:
Described server node sends the heartbeat data packets of carrying local IP list characteristics value of preserving to setting up with it other server node that network is connected;
When described server node receives after other server node to connect the heartbeat data packets sended over by network, extract an IP list characteristics value of carrying in this heartbeat data packets, the one IP list characteristics value of carrying in this heartbeat data packets and local the 2nd IP list characteristics value stored are compared, when a described IP list characteristics value is greater than described 2nd IP list characteristics value, then described server node connects to the request of described other server node transmission server ip address list update by network, after the server ip address list update response that other server node described in receiving sends over, local original server ip address list stored is replaced in the server ip address list of other server node described in carrying in responding with described server ip address list update, and replace local original the 2nd IP list characteristics value stored by a described IP list characteristics value,
When a described IP list characteristics value is not more than described 2nd IP list characteristics value, then described server node does not send the request of server ip address list update to other server node described.
Described method also comprises:
Management data the Resources list in server node in distributed server system, this resource address list is used for marking the data resource that home server node has, resource status characteristic value is generated according to described data resource list, the version value of described data resource list that this resource status characteristic value is corresponding, described resource status characteristic value is kept at this locality by described server node;
Described server node sends the heartbeat data packets of carrying local resource status characteristic value of preserving and IP list characteristics value to setting up with it other server node that network is connected;
When described server node receives after other server node to connect the heartbeat data packets sended over by network, extract the first resource status flag value of carrying in this heartbeat data packets, the first resource status flag value of carrying in this heartbeat data packets and the local Secondary resource status flag value stored are compared, when described first resource status flag value is greater than described Secondary resource status flag value, then described server node connects to described other server node transmission resource status update request by network, after the resource status that described in receiving, other server node sends over upgrades response, the data resource list of local original storage is replaced in the data resource list of other server node described in carrying in responding with described resource status renewal, and replace local original Secondary resource status flag value stored by described first resource status flag value,
When described first resource status flag value is not more than described Secondary resource status flag value, then described server node does not send resource status update request to other server node described.
Described method also comprises:
A new server node is increased in described distributed server system, to this new server node, IP address is set, the server ip address list and the data resource list that arrange this new server node are sky, IP list characteristics value and resource status characteristic value are minimum, an existing server node is chosen in described distributed server system, in the server ip address list of this existing server node, increase the IP address of described new server node, and upgrade the IP list characteristics value of described existing server node;
Between described new server node and described existing server node, set up network connect, described existing server node sends the IP list characteristics value and resource status characteristic value heartbeat data packets of carrying local storage to described new server node, after described new server node receives described heartbeat data packets, according to the IP list characteristics value of carrying in described heartbeat data packets and resource status characteristic value, send server ip address list update request and resource status update request to described existing server node;
After described new server node receives the server ip address list update response that described existing server node sends over, replace local original server ip address list stored with the server ip address list of the described existing server node carried in described server ip address list update response, and replace local original IP address list characteristic value stored with carrying IP address list characteristic value in described heartbeat data packets; Receive after resource status that described existing server node sends over upgrades response, local original data resource list stored is replaced in the data resource list upgrading the described existing server node carried in response with described resource status, and replaces local original Secondary resource status flag value stored with carrying resource status characteristic value in described heartbeat data packets.
Described method also comprises:
When removing Geju City server node in described distributed server system, the network disconnected between described legacy server node and other server node connects, an existing server node is chosen in described distributed server system, in the server ip address list of this existing server node, delete the IP address of described legacy server node, and upgrade the IP list characteristics value of described existing server node;
Described existing server node sends the heartbeat data packets of carrying the local IP list characteristics value stored to other server node, after other server node described receives described heartbeat data packets, according to the IP list characteristics value of carrying in described heartbeat data packets, send the request of server ip address list update to described existing server node;
After other server node described receives the server ip address list update response that described existing server node sends over, replace local original server ip address list stored with the server ip address list of the described existing server node carried in described server ip address list update response, and replace local original IP address list characteristic value stored with carrying IP address list characteristic value in described heartbeat data packets.
A server node in distributed server system, comprising:
Resource management module, for management server IP address list, describes the IP address of multiple server node in this server ip address list;
Network connection establishment module, for and the server ip address list that manages of described resource management module in set up network between each server node of recording and connect;
Source synchronous processing module, for sending the heartbeat data packets of carrying local resource information to setting up with book server node other server node that network is connected, between each server node, carry out source synchronous by the resource information of carrying in described heartbeat data packets.
Described resource management module, specifically for management server IP address list, the IP address of multiple server node is described in this server ip address list, IP list characteristics value is generated according to the IP address of the multiple server nodes recorded in described server ip address list, the version value of described server ip address list that this IP list characteristics value is corresponding, preserves described IP list characteristics value;
Described network connection establishment module, specifically for arranging heartbeat listening port in described server node, setting up network and connecting between the heartbeat listening port of other server node recorded in this heartbeat listening port and described server ip address list.
Described source synchronous processing module, specifically for sending the heartbeat data packets of carrying local IP list characteristics value of preserving to setting up with book server node other server node that network is connected;
When receiving after other server node to connect the heartbeat data packets sended over by network, extract an IP list characteristics value of carrying in this heartbeat data packets, the one IP list characteristics value of carrying in this heartbeat data packets and local the 2nd IP list characteristics value stored are compared, when a described IP list characteristics value is greater than described 2nd IP list characteristics value, then connected by network and send the request of server ip address list update to other server node described, after the server ip address list update response that other server node described in receiving sends over, local original server ip address list stored is replaced in the server ip address list of other server node described in carrying in responding with described server ip address list update, and replace local original the 2nd IP list characteristics value stored by a described IP list characteristics value,
When a described IP list characteristics value is not more than described 2nd IP list characteristics value, then do not send the request of server ip address list update to other server node described.
Described resource management module, specifically for management data the Resources list, this resource address list is used for marking the data resource that home server node has, resource status characteristic value is generated according to described data resource list, the version value of described data resource list that this resource status characteristic value is corresponding, preserves described resource status characteristic value;
Described source synchronous processing module, specifically for sending the heartbeat data packets of carrying local resource status characteristic value of preserving and IP list characteristics value to setting up with book server node other server node that network is connected, when receiving after other server node to connect the heartbeat data packets sended over by network, extract the first resource status flag value of carrying in this heartbeat data packets, the first resource status flag value of carrying in this heartbeat data packets and the local Secondary resource status flag value stored are compared, when described first resource status flag value is greater than described Secondary resource status flag value, then connected by network and send resource status update request to other server node described, after the resource status that described in receiving, other server node sends over upgrades response, the data resource list of local original storage is replaced in the data resource list of other server node described in carrying in responding with described resource status renewal, and replace local original Secondary resource status flag value stored by described first resource status flag value,
When described first resource status flag value is not more than described Secondary resource status flag value, then do not send resource status update request to other server node described.
A new server node is increased in described distributed server system, to this new server node, IP address is set, the server ip address list and the data resource list that arrange this new server node are sky, IP list characteristics value and resource status characteristic value are minimum, an existing server node is chosen in described distributed server system, in the server ip address list of this existing server node, increase the IP address of described new server node, and upgrade the IP list characteristics value of described existing server node;
Between described new server node and described existing server node, set up network connect, described existing server node sends the IP list characteristics value and resource status characteristic value heartbeat data packets of carrying local storage to described new server node, after described new server node receives described heartbeat data packets, according to the IP list characteristics value of carrying in described heartbeat data packets and resource status characteristic value, send server ip address list update request and resource status update request to described existing server node;
After described new server node receives the server ip address list update response that described existing server node sends over, replace local original server ip address list stored with the server ip address list of the described existing server node carried in described server ip address list update response, and replace local original IP address list characteristic value stored with carrying IP address list characteristic value in described heartbeat data packets; Receive after resource status that described existing server node sends over upgrades response, local original data resource list stored is replaced in the data resource list upgrading the described existing server node carried in response with described resource status, and replaces local original Secondary resource status flag value stored with carrying resource status characteristic value in described heartbeat data packets.
When removing Geju City server node in described distributed server system, the network disconnected between described legacy server node and other server node connects, an existing server node is chosen in described distributed server system, in the server ip address list of this existing server node, delete the IP address of described legacy server node, and upgrade the IP list characteristics value of described existing server node;
Described existing server node sends the heartbeat data packets of carrying the local IP list characteristics value stored to other server node, after other server node described receives described heartbeat data packets, according to the IP list characteristics value of carrying in described heartbeat data packets, send the request of server ip address list update to described existing server node;
After other server node described receives the server ip address list update response that described existing server node sends over, replace local original server ip address list stored with the server ip address list of the described existing server node carried in described server ip address list update response, and replace local original IP address list characteristic value stored with carrying IP address list characteristic value in described heartbeat data packets.
The technical scheme provided as can be seen from the embodiment of the invention described above, the embodiment of the present invention by server node management server IP address list and data resource list, each server node sends the heartbeat data packets of carrying local resource information to setting up with it other server node that network is connected, can realize resource information by carrying in heartbeat data packets convenient between each server node, automatically carry out source synchronous.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
A kind of process chart increasing the method for server node in distributed network server system that Fig. 1 provides for the embodiment of the present invention two;
A kind of process chart removing the method for server node in distributed network server system that Fig. 2 provides for the embodiment of the present invention two;
The specific implementation structure chart of the server node in a kind of distributed server system that Fig. 3 provides for the embodiment of the present invention three;
Fig. 4 is when comprising 4 server nodes, the specific implementation structure chart of a kind of distributed server system that the embodiment of the present invention three provides.
Embodiment
For ease of the understanding to the embodiment of the present invention, be further explained explanation below in conjunction with accompanying drawing for several specific embodiment, and each embodiment does not form the restriction to the embodiment of the present invention.
Embodiment one
The distributed server system that the embodiment of the present invention provides is made up of the server node of some, each server node is the computer system of a platform independent, each server node has general physics and logical resource, when the resource of one of them server node is upgraded, namely this server node synchronously can be upgraded by heartbeat synchronization mode to other server nodes as Controlling vertex, each server node is made to maintain identical resource, to ensure that whole system externally provides service as a unified entirety, when any server node of system breaks down, server node can regulate automatically, also can conveniently carry out the increase of node and remove.
This distributed server system logically consists of the following components, hardware/software/resource, and hardware is made up of some station server nodes and the network that is connected thereof; Software to refer on hardware the coding code for providing services on the Internet; Resource is referred to and to be kept on server hardware by software and other modes, and for providing services on the Internet relied on data and maintain the data etc. that system cloud gray model relies on, this resource can be IP address resource, data resource etc.
The embodiment of the present invention is management server IP address list and resource address list in each server node, this server ip address list is used for marking sets up with home server node one or more other server nodes that network is connected, this resource address list is used for marking the data resource that home server node has, exemplary, this data resource can for user data or in order to the data imported from outside of providing services on the Internet.
Above-mentioned heartbeat synchronization mode is realized by heartbeat module, other Servers-all node timed sending heartbeat data packets in the server ip address list that server node is preserved to this locality, whether exist by sending other server nodes in the list of heartbeat data packets detection server ip address, and whether detect logical resource between server node by characteristic value consistent, and then realize the synchronous of resource.
Above-mentioned characteristic value is used for identifying the current state of each server node, comprises two parts:
IP list characteristics value, generating according to the IP address of the multiple server nodes recorded in described server ip address list, is the character string of a preseting length, the corresponding version value by the server ip address list of certain Rule Expression in this characteristic value.Size can be compared mutually between different IP list characteristics values, size by comparing this IP list characteristics value between server node just knows which IP list characteristics value is up-to-date, namely know that the server ip address list in which server node is up-to-date, thus carry out the renewal of IP address list, avoid the comparison to whole server ip address list, maximum IP list characteristics value then represents the IP list characteristics value of this distributed network services system;
Resource status characteristic value, generating according to the resource information recorded in described resource address list, is the character string of a preseting length, the corresponding version value by the server system resources of certain Rule Expression in this characteristic value.Size can be compared mutually between different resource status characteristic values, size by comparing this characteristic value between server node just knows which characteristic value is up-to-date, namely know that the resource address list in which server node is up-to-date, thus carry out the renewal of data resource, avoid the comparison to whole system resource content; Maximum resource status characteristic value then represents the resource status characteristic value of this distributed network services system;
Above-mentioned heartbeat synchronization mode comprises following process:
Process 1, server node set up a heartbeat listening port in the machine, set up network between the heartbeat listening port of the every other server node of this heartbeat listening port and server IP address list to connect, thus the network that establishes between server node between two in all server nodes connects.Each server node is connected according to the time interval set to the every other server node transmission heartbeat data packets in server ip address list by network, IP list characteristics value and the resource status characteristic value of book server node is carried, its length that heartbeat data packets is increased and the network overhead that brings is little of negligible in heartbeat data packets.If local server node to be connected in set point number and can not to set up network with certain other server node and be connected or send heartbeat data packets failure to this other server node, certain other server node then identifying corresponding IP address is unavailable, and continues the network connection between timing foundation with this certain other server node.
After local server node receives the heartbeat data packets that other server node sends over, extract an IP list characteristics value of carrying in this heartbeat data packets, the one IP list characteristics value of carrying in this heartbeat data packets and local the 2nd IP list characteristics value stored are compared, when a described IP list characteristics value is greater than described 2nd IP list characteristics value, then described server node connects to the request of described other server node transmission server ip address list update by network, after the server ip address list update response that other server node described in receiving sends over, local original server ip address list stored is replaced in the server ip address list of other server node described in carrying in responding with described server ip address list update, and replace local original the 2nd IP list characteristics value stored by a described IP list characteristics value,
When a described IP list characteristics value is not more than described 2nd IP list characteristics value, then described server node does not send the request of server ip address list update to other server node described.
In like manner, after local server node receives the heartbeat data packets that other server node sends over, extract the first resource status flag value of carrying in this heartbeat data packets, the first resource status flag value of carrying in this heartbeat data packets and the local Secondary resource status flag value stored are compared, when described first resource status flag value is greater than described Secondary resource status flag value, then described server node connects to described other server node transmission resource status update request by network, after the resource status that described in receiving, other server node sends over upgrades response, the data resource list of local original storage is replaced in the data resource list of other server node described in carrying in responding with described resource status renewal, and replace local original Secondary resource status flag value stored by described first resource status flag value,
When described first resource status flag value is not more than described Secondary resource status flag value, then described server node does not send resource status update request to other server node described.
Above-mentioned renewal rewards theory can make the IP list characteristics value of two server nodes, resource status list characteristics value keep completely the same.
Process 2, in described distributed server system increase a new server node, to this new server node, IP address is set, the server ip address list and the data resource list that arrange this new server node are sky, IP list characteristics value and resource status characteristic value are minimum, its status flag value is initial condition, if with other characteristic values are more all in minimum arbitrarily, only need by new node connecting system network.An existing server node is chosen in described distributed server system, in the server ip address list of this existing server node, increase the IP address of described new server node, and upgrade the IP list characteristics value of described existing server node.
Between described new server node and described existing server node, set up network connect, described existing server node sends the IP list characteristics value and resource status characteristic value heartbeat data packets of carrying local storage to described new server node, after described new server node receives described heartbeat data packets, according to the IP list characteristics value of carrying in described heartbeat data packets and resource status characteristic value, send server ip address list update request and resource status update request to described existing server node;
After described new server node receives the server ip address list update response that described existing server node sends over, replace local original server ip address list stored with the server ip address list of the described existing server node carried in described server ip address list update response, and replace local original IP address list characteristic value stored with carrying IP address list characteristic value in described heartbeat data packets; Receive after resource status that described existing server node sends over upgrades response, local original data resource list stored is replaced in the data resource list upgrading the described existing server node carried in response with described resource status, and replaces local original Secondary resource status flag value stored with carrying resource status characteristic value in described heartbeat data packets.
Process 3, when removing Geju City server node in described distributed server system, the network disconnected between described legacy server node and other server node connects, an existing server node is chosen in described distributed server system, in the server ip address list of this existing server node, delete the IP address of described legacy server node, and upgrade the IP list characteristics value of described existing server node;
Described existing server node sends the heartbeat data packets of carrying the local IP list characteristics value stored to other server node, after other server node described receives described heartbeat data packets, according to the IP list characteristics value of carrying in described heartbeat data packets, send the request of server ip address list update to described existing server node;
After other server node described receives the server ip address list update response that described existing server node sends over, replace local original server ip address list stored with the server ip address list of the described existing server node carried in described server ip address list update response, and replace local original IP address list characteristic value stored with carrying IP address list characteristic value in described heartbeat data packets.
If process 4 upgrades the resource of this distributed network services system, then in existing system, choose arbitrarily an effective server node, the resource of this server node is upgraded, upgrade the resource status characteristic value being generated a higher-version after terminating by setting rule in the machine, nationality can realize the source synchronous of other server nodes by said process 1.
Embodiment two
This embodiment is divided into three parts: increase server node, remove server node, renewal distribution formula network server system resource.
A kind of process chart increasing the method for server node in distributed network server system that Fig. 1 provides for this embodiment, existing server node S1 in this embodiment distributed network server system, S2, increasing in server node S3 to system also synchronous, is finally the system mode after synchronously completing.Concrete processing procedure comprises following treatment step:
Step 101, join in existed system network by server node S3, the server ip address list of server node S3 and the Resources list are empty, and corresponding IP list characteristics value VLIP0.0 and resource status characteristic value VLR0.0, node S3 start heartbeat listening port.
Step 102, selection node S1, the IP list characteristics value that S1 has server ip address list LIP1 (S1, S2) and the Resources list LR1 (d1, d2), S1 is VLIP0.1, and resource status characteristic value is VLR0.1.
Step 103, in the IP address list of node S1, add newly-increased server node S3 after become LIP2 (S1, S2, S3), generate new IP list characteristics value VLIP0.2, the Resources list of node S1 is constant.
Step 104, node S1 find the server node S3 newly increased in IP address list, between the heartbeat listening port and the heartbeat listening port of S3 of node S1, set up network connect, local IP list characteristics value VLIP0.2 and resource status characteristic value VLR0.1 is arranged in heartbeat data packets by node S1, is connected this heartbeat data packets is sent to node S3 by above-mentioned network.
Step 104, node S3 receive the heartbeat data packets of S1, obtain the other side characteristic value VLIP0.2 and VLR0.1, relatively find that local characteristic value VLIP0.0 and VLR0.0 is less, then connected by above-mentioned network and initiate server ip address list update request and resource status update request to node S1, local characteristic value VLIP0.0 and VLR0.0 is arranged in response heartbeat data packets, this response heartbeat data packets is sent to S1.
Step 105, node S1 receive the heartbeat response packet of node S3, find that local characteristic value VLIP0.2 and VLR0.1 is greater than VLIP0.0 and VLR0.0 in the other side's heartbeat response packet respectively, are left intact, and timing sends next heartbeat data packets to node S3.
After the server ip address list update request that step 106, node S1 receive node S3 and resource status update request, by the server ip address list LIP2 (S1 of this locality, S2, S3) and the Resources list LR1 (d1, d2) respectively by server ip address list update response and resource status renewal response return to node S3.
Step 107, node S3 receive the server ip address list LIP2 (S1 of S1, S2, and the Resources list LR1 (d1 S3), d2), by LIP2 (S1, S2, and LR1 (d1 S3), d2) be saved in this locality, and the corresponding IP list characteristics value upgrading this locality is VLIP0.2, upgrading resource status characteristic value is VLR0.1.
Step 108, node S3 are according to new server ip address list LIP2 (S1, S2, S3) set up network with other server nodes S2 to connect, send heartbeat data packets to server node S2, the IP address list of S2 node is updated to identical with the IP address list of node S3.
A kind of process chart removing the method for server node in distributed network server system that Fig. 2 provides for this embodiment, existing server node S1 in this embodiment distributed network server system, S2, S3, removing server node S3 also synchronous, is finally the system mode after synchronously completing.
Concrete processing procedure comprises following treatment step:
Step 201, node S3 to be removed from existing distributed network server system.
Step 202, selection node S1, S1 has server ip address list LIP2 (S1, S2, S3) and the Resources list LR1 (d1, d2), respectively corresponding IP list characteristics value VLIP0.2 and resource status characteristic value VLR0.1.
Step 203, in the IP address list of S1, delete server node S3 after become LIP3 (S1, S2), generate new IP list characteristics value VLIP0.3, the Resources list, resource status characteristic value are constant.
Step 204, node S1 find to remove server node S3 in IP address list, and the network disconnecting S3 heartbeat listening port connects, and can not continue the heartbeat listening port initiatively connecting S3.But the network being connected to S1 heartbeat listening port from node S3 connects and can not disconnect, and connected by this network, the local IP list characteristics value VLIP0.3 of S1 node and resource status characteristic value VLR0.1 can by sending to node S3 in heartbeat data packets.
Step 204, node S3 receive the heartbeat data packets of S1, obtain the other side characteristic value VLIP0.3 and VLR0.1, relatively find that local characteristic value VLIP0.2 is less, then initiate the request of server ip address list update additionally by network mode to node S1, local characteristic value VLIP0.2 is placed in heartbeat response packet and sends to node S1.
Step 205, node S1 receive the heartbeat response packet of node S3, find that local characteristic value VLIP0.3 is greater than the VLIP0.2 in the other side's heartbeat response packet, are left intact.
After step 206, node S1 receive the server ip address list update request of node S3, server ip address list LIP3 (S1, S2) of this locality is returned to node S3 by the response of server ip address list update.
Step 207, node S3 receive server ip address list LIP3 (S1, S2) of S1, and IP address list LIP3 (S1, S2) is saved in this locality, and the IP list characteristics value upgrading this locality is VLIP0.2.
Step 208, node S3 are according to new server ip address list LIP3 (S1, S2), find that local IP address is deleted from the IP address list LIP3 of latest edition, then initiatively disconnect the connection with other Servers-all nodes S2, and empty IP address list.
After step 209, other servers joint S2 upgrades IP address list by heartbeat data packets, the network disconnecting S3 heartbeat listening port connects, and can not continue the heartbeat listening port initiatively connecting S3, and S2 node IP address list update is with node S3.
The handling process of the method for a kind of renewal distribution formula network server system resource in distributed network server system that this embodiment provides comprises the following steps:
Step 301, selection node S1, S1 has server ip address list LIP3 (S1, S2) and the Resources list LR1 (d1, d2), respectively corresponding IP list characteristics value VLIP0.3 and resource status characteristic value VLR0.1.
Step 302, resource updates is carried out to node S1 after, new the Resources list is LR2 (d1, d3), generates new resource status characteristic value VLR0.2.
The new resource status characteristic value VLR0.2 of step 303, node S1 is by sending to S2 in the heartbeat data packets of S1.
Step 304, node S2 receive the heartbeat data packets of S1, obtain the other side's resource status characteristic value VLR0.2, relatively find that local characteristic value VLR0.1 is less, then connected by network and initiate resource status update request to node S1, and local characteristic value VLR0.1 is arranged in response heartbeat data packets, response heartbeat data packets is sent to S1.
Step 305, node S1 receive the response heartbeat data packets of node S2, find that local characteristic value VLR0.2 is greater than the VLR0.1 in the other side's heartbeat response packet, are left intact, and timing sends next heartbeat data packets to node S2.
After step 306, node S1 receive the resource status update request of node S2, the Resources list LR2 (d1, d3) of this locality is upgraded response by resource status and returns to node S2.
Step 307, node S2 receive the Resources list LR2 (d1, d3) of S1, and the Resources list LR2 (d1, d3) is remained to this locality, and the resource status characteristic value upgrading this locality is VLR0.2.
Embodiment three
This embodiment offers the server node in a kind of distributed server system, its specific implementation structure as shown in Figure 3, specifically can comprise following module:
Resource management module 31, for management server IP address list, describes the IP address of multiple server node in this server ip address list;
Network connection establishment module 32, for and the server ip address list that manages of described resource management module in set up network between each server node of recording and connect;
Source synchronous processing module 33, for sending the heartbeat data packets of carrying local resource information to setting up with book server node other server node that network is connected, between each server node, carry out source synchronous by the resource information of carrying in described heartbeat data packets.
Further, described resource management module 31, specifically for management server IP address list, the IP address of multiple server node is described in this server ip address list, IP list characteristics value is generated according to the IP address of the multiple server nodes recorded in described server ip address list, the version value of described server ip address list that this IP list characteristics value is corresponding, preserves described IP list characteristics value;
Further, described network connection establishment module 32, specifically for arranging heartbeat listening port in described server node, setting up network between the heartbeat listening port of other server node recorded in this heartbeat listening port and described server ip address list and connecting.
Further, described source synchronous processing module 33, specifically for sending the heartbeat data packets of carrying local IP list characteristics value of preserving to setting up with book server node other server node that network is connected;
When receiving after other server node to connect the heartbeat data packets sended over by network, extract an IP list characteristics value of carrying in this heartbeat data packets, the one IP list characteristics value of carrying in this heartbeat data packets and local the 2nd IP list characteristics value stored are compared, when a described IP list characteristics value is greater than described 2nd IP list characteristics value, then connected by network and send the request of server ip address list update to other server node described, after the server ip address list update response that other server node described in receiving sends over, local original server ip address list stored is replaced in the server ip address list of other server node described in carrying in responding with described server ip address list update, and replace local original the 2nd IP list characteristics value stored by a described IP list characteristics value,
When a described IP list characteristics value is not more than described 2nd IP list characteristics value, then do not send the request of server ip address list update to other server node described.
Further, described resource management module 31, specifically for management data the Resources list, this resource address list is used for marking the data resource that home server node has, resource status characteristic value is generated according to described data resource list, the version value of described data resource list that this resource status characteristic value is corresponding, preserves described resource status characteristic value;
Described source synchronous processing module 33, specifically for sending the heartbeat data packets of carrying local resource status characteristic value of preserving and IP list characteristics value to setting up with book server node other server node that network is connected, when receiving after other server node to connect the heartbeat data packets sended over by network, extract the first resource status flag value of carrying in this heartbeat data packets, the first resource status flag value of carrying in this heartbeat data packets and the local Secondary resource status flag value stored are compared, when described first resource status flag value is greater than described Secondary resource status flag value, then connected by network and send resource status update request to other server node described, after the resource status that described in receiving, other server node sends over upgrades response, the data resource list of local original storage is replaced in the data resource list of other server node described in carrying in responding with described resource status renewal, and replace local original Secondary resource status flag value stored by described first resource status flag value,
When described first resource status flag value is not more than described Secondary resource status flag value, then do not send resource status update request to other server node described.
Further, a new server node is increased in described distributed server system, to this new server node, IP address is set, the server ip address list and the data resource list that arrange this new server node are sky, IP list characteristics value and resource status characteristic value are minimum, an existing server node is chosen in described distributed server system, in the server ip address list of this existing server node, increase the IP address of described new server node, and upgrade the IP list characteristics value of described existing server node;
Between described new server node and described existing server node, set up network connect, described existing server node sends the IP list characteristics value and resource status characteristic value heartbeat data packets of carrying local storage to described new server node, after described new server node receives described heartbeat data packets, according to the IP list characteristics value of carrying in described heartbeat data packets and resource status characteristic value, send server ip address list update request and resource status update request to described existing server node;
After described new server node receives the server ip address list update response that described existing server node sends over, replace local original server ip address list stored with the server ip address list of the described existing server node carried in described server ip address list update response, and replace local original IP address list characteristic value stored with carrying IP address list characteristic value in described heartbeat data packets; Receive after resource status that described existing server node sends over upgrades response, local original data resource list stored is replaced in the data resource list upgrading the described existing server node carried in response with described resource status, and replaces local original Secondary resource status flag value stored with carrying resource status characteristic value in described heartbeat data packets.
Further, when removing Geju City server node in described distributed server system, the network disconnected between described legacy server node and other server node connects, an existing server node is chosen in described distributed server system, in the server ip address list of this existing server node, delete the IP address of described legacy server node, and upgrade the IP list characteristics value of described existing server node;
Described existing server node sends the heartbeat data packets of carrying the local IP list characteristics value stored to other server node, after other server node described receives described heartbeat data packets, according to the IP list characteristics value of carrying in described heartbeat data packets, send the request of server ip address list update to described existing server node;
After other server node described receives the server ip address list update response that described existing server node sends over, replace local original server ip address list stored with the server ip address list of the described existing server node carried in described server ip address list update response, and replace local original IP address list characteristic value stored with carrying IP address list characteristic value in described heartbeat data packets.
This embodiment still provides a kind of distributed server system, comprises the server node shown in multiple above-mentioned Fig. 3.Exemplary, when comprising 4 server nodes, the structure of above-mentioned distributed server system is as shown in Figure 4.
Carry out the detailed process of server node source synchronous in distributed server system by the device of the embodiment of the present invention and system and preceding method embodiment similar, repeat no more herein.
In sum, the embodiment of the present invention by server node management server IP address list and data resource list, each server node sends the heartbeat data packets of carrying local resource information to setting up with it other server node that network is connected, can realize resource information by carrying in heartbeat data packets convenient between each server node, automatically carry out source synchronous.
When the server node in system break down or artificial increase and remove server node time, can automatically regulate between each server node, the automatic synchronization of resource in system on each server node can be realized by fairly simple mode by the heartbeat data packet communication strengthened, and carry out extra control and management without the need to outside.
One of ordinary skill in the art will appreciate that: accompanying drawing is the schematic diagram of an embodiment, the module in accompanying drawing or flow process might not be that enforcement the present invention is necessary.
As seen through the above description of the embodiments, those skilled in the art can be well understood to the mode that the present invention can add required general hardware platform by software and realizes.Based on such understanding, technical scheme of the present invention can embody with the form of software product the part that prior art contributes in essence in other words, this computer software product can be stored in storage medium, as ROM/RAM, magnetic disc, CD etc., comprising some instructions in order to make a computer equipment (can be personal computer, server, or the network equipment etc.) perform the method described in some part of each embodiment of the present invention or embodiment.
Each embodiment in this specification all adopts the mode of going forward one by one to describe, between each embodiment identical similar part mutually see, what each embodiment stressed is the difference with other embodiments.Especially, for device or system embodiment, because it is substantially similar to embodiment of the method, so describe fairly simple, relevant part illustrates see the part of embodiment of the method.Apparatus and system embodiment described above is only schematic, the wherein said unit illustrated as separating component or can may not be and physically separates, parts as unit display can be or may not be physical location, namely can be positioned at a place, or also can be distributed in multiple network element.Some or all of module wherein can be selected according to the actual needs to realize the object of the present embodiment scheme.Those of ordinary skill in the art, when not paying creative work, are namely appreciated that and implement.
The above; be only the present invention's preferably embodiment, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (12)
1. in distributed server system, server node carries out a method for source synchronous, it is characterized in that, comprising:
Management server IP address list in each server node in distributed server system, describe the IP address of multiple server node in this server ip address list, set up network between each server node recorded in the server ip address list of each server node and this locality and connect;
Each server node sends the heartbeat data packets of carrying local resource information to setting up with it other server node that network is connected, and carries out source synchronous by the resource information of carrying in described heartbeat data packets between each server node.
2. in distributed server system according to claim 1, server node carries out the method for source synchronous, it is characterized in that, management server IP address list in the described each server node in distributed server system, the IP address of multiple server node is described in this server ip address list, set up network between each server node recorded in the server ip address list of each server node and this locality to connect, comprising:
Management server IP address list in server node in distributed server system, describes the IP address of multiple server node in this server ip address list;
IP list characteristics value is generated according to the IP address of the multiple server nodes recorded in described server ip address list, the version value of described server ip address list that this IP list characteristics value is corresponding, described IP list characteristics value is kept at this locality by described server node;
Heartbeat listening port is set in described server node, sets up network between the heartbeat listening port of other server node recorded in this heartbeat listening port and described server ip address list and connect.
3. in distributed server system according to claim 2, server node carries out the method for source synchronous, it is characterized in that, described each server node sends the heartbeat data packets of carrying local resource information to setting up with it other server node that network is connected, between each server node, carry out source synchronous by the resource information of carrying in described heartbeat data packets, comprising:
Described server node sends the heartbeat data packets of carrying local IP list characteristics value of preserving to setting up with it other server node that network is connected;
When described server node receives after other server node to connect the heartbeat data packets sended over by network, extract an IP list characteristics value of carrying in this heartbeat data packets, the one IP list characteristics value of carrying in this heartbeat data packets and local the 2nd IP list characteristics value stored are compared, when a described IP list characteristics value is greater than described 2nd IP list characteristics value, then described server node connects to the request of described other server node transmission server ip address list update by network, after the server ip address list update response that other server node described in receiving sends over, local original server ip address list stored is replaced in the server ip address list of other server node described in carrying in responding with described server ip address list update, and replace local original the 2nd IP list characteristics value stored by a described IP list characteristics value,
When a described IP list characteristics value is not more than described 2nd IP list characteristics value, then described server node does not send the request of server ip address list update to other server node described.
4. in distributed server system according to claim 3, server node carries out the method for source synchronous, it is characterized in that, described method also comprises:
Management data the Resources list in server node in distributed server system, this resource address list is used for marking the data resource that home server node has, resource status characteristic value is generated according to described data resource list, the version value of described data resource list that this resource status characteristic value is corresponding, described resource status characteristic value is kept at this locality by described server node;
Described server node sends the heartbeat data packets of carrying local resource status characteristic value of preserving and IP list characteristics value to setting up with it other server node that network is connected;
When described server node receives after other server node to connect the heartbeat data packets sended over by network, extract the first resource status flag value of carrying in this heartbeat data packets, the first resource status flag value of carrying in this heartbeat data packets and the local Secondary resource status flag value stored are compared, when described first resource status flag value is greater than described Secondary resource status flag value, then described server node connects to described other server node transmission resource status update request by network, after the resource status that described in receiving, other server node sends over upgrades response, the data resource list of local original storage is replaced in the data resource list of other server node described in carrying in responding with described resource status renewal, and replace local original Secondary resource status flag value stored by described first resource status flag value,
When described first resource status flag value is not more than described Secondary resource status flag value, then described server node does not send resource status update request to other server node described.
5. in the distributed server system according to Claims 2 or 3 or 4, server node carries out the method for source synchronous, it is characterized in that, described method also comprises:
A new server node is increased in described distributed server system, to this new server node, IP address is set, the server ip address list and the data resource list that arrange this new server node are sky, IP list characteristics value and resource status characteristic value are minimum, an existing server node is chosen in described distributed server system, in the server ip address list of this existing server node, increase the IP address of described new server node, and upgrade the IP list characteristics value of described existing server node;
Between described new server node and described existing server node, set up network connect, described existing server node sends the IP list characteristics value and resource status characteristic value heartbeat data packets of carrying local storage to described new server node, after described new server node receives described heartbeat data packets, according to the IP list characteristics value of carrying in described heartbeat data packets and resource status characteristic value, send server ip address list update request and resource status update request to described existing server node;
After described new server node receives the server ip address list update response that described existing server node sends over, replace local original server ip address list stored with the server ip address list of the described existing server node carried in described server ip address list update response, and replace local original IP address list characteristic value stored with carrying IP address list characteristic value in described heartbeat data packets; Receive after resource status that described existing server node sends over upgrades response, local original data resource list stored is replaced in the data resource list upgrading the described existing server node carried in response with described resource status, and replaces local original Secondary resource status flag value stored with carrying resource status characteristic value in described heartbeat data packets.
6. in the distributed server system according to Claims 2 or 3 or 4, server node carries out the method for source synchronous, it is characterized in that, described method also comprises:
When removing Geju City server node in described distributed server system, the network disconnected between described legacy server node and other server node connects, an existing server node is chosen in described distributed server system, in the server ip address list of this existing server node, delete the IP address of described legacy server node, and upgrade the IP list characteristics value of described existing server node;
Described existing server node sends the heartbeat data packets of carrying the local IP list characteristics value stored to other server node, after other server node described receives described heartbeat data packets, according to the IP list characteristics value of carrying in described heartbeat data packets, send the request of server ip address list update to described existing server node;
After other server node described receives the server ip address list update response that described existing server node sends over, replace local original server ip address list stored with the server ip address list of the described existing server node carried in described server ip address list update response, and replace local original IP address list characteristic value stored with carrying IP address list characteristic value in described heartbeat data packets.
7. the server node in distributed server system, is characterized in that, comprising:
Resource management module, for management server IP address list, describes the IP address of multiple server node in this server ip address list;
Network connection establishment module, for and the server ip address list that manages of described resource management module in set up network between each server node of recording and connect;
Source synchronous processing module, for sending the heartbeat data packets of carrying local resource information to setting up with book server node other server node that network is connected, between each server node, carry out source synchronous by the resource information of carrying in described heartbeat data packets.
8. the server node in distributed server system according to claim 7, is characterized in that:
Described resource management module, specifically for management server IP address list, the IP address of multiple server node is described in this server ip address list, IP list characteristics value is generated according to the IP address of the multiple server nodes recorded in described server ip address list, the version value of described server ip address list that this IP list characteristics value is corresponding, preserves described IP list characteristics value;
Described network connection establishment module, specifically for arranging heartbeat listening port in described server node, setting up network and connecting between the heartbeat listening port of other server node recorded in this heartbeat listening port and described server ip address list.
9. the server node in distributed server system according to claim 8, is characterized in that:
Described source synchronous processing module, specifically for sending the heartbeat data packets of carrying local IP list characteristics value of preserving to setting up with book server node other server node that network is connected;
When receiving after other server node to connect the heartbeat data packets sended over by network, extract an IP list characteristics value of carrying in this heartbeat data packets, the one IP list characteristics value of carrying in this heartbeat data packets and local the 2nd IP list characteristics value stored are compared, when a described IP list characteristics value is greater than described 2nd IP list characteristics value, then connected by network and send the request of server ip address list update to other server node described, after the server ip address list update response that other server node described in receiving sends over, local original server ip address list stored is replaced in the server ip address list of other server node described in carrying in responding with described server ip address list update, and replace local original the 2nd IP list characteristics value stored by a described IP list characteristics value,
When a described IP list characteristics value is not more than described 2nd IP list characteristics value, then do not send the request of server ip address list update to other server node described.
10. the server node in distributed server system according to claim 9, is characterized in that:
Described resource management module, specifically for management data the Resources list, this resource address list is used for marking the data resource that home server node has, resource status characteristic value is generated according to described data resource list, the version value of described data resource list that this resource status characteristic value is corresponding, preserves described resource status characteristic value;
Described source synchronous processing module, specifically for sending the heartbeat data packets of carrying local resource status characteristic value of preserving and IP list characteristics value to setting up with book server node other server node that network is connected, when receiving after other server node to connect the heartbeat data packets sended over by network, extract the first resource status flag value of carrying in this heartbeat data packets, the first resource status flag value of carrying in this heartbeat data packets and the local Secondary resource status flag value stored are compared, when described first resource status flag value is greater than described Secondary resource status flag value, then connected by network and send resource status update request to other server node described, after the resource status that described in receiving, other server node sends over upgrades response, the data resource list of local original storage is replaced in the data resource list of other server node described in carrying in responding with described resource status renewal, and replace local original Secondary resource status flag value stored by described first resource status flag value,
When described first resource status flag value is not more than described Secondary resource status flag value, then do not send resource status update request to other server node described.
Server node in distributed server system described in 11. according to Claim 8 or 9 or 10, it is characterized in that, a new server node is increased in described distributed server system, to this new server node, IP address is set, the server ip address list and the data resource list that arrange this new server node are sky, IP list characteristics value and resource status characteristic value are minimum, an existing server node is chosen in described distributed server system, the IP address of described new server node is increased in the server ip address list of this existing server node, and upgrade the IP list characteristics value of described existing server node,
Between described new server node and described existing server node, set up network connect, described existing server node sends the IP list characteristics value and resource status characteristic value heartbeat data packets of carrying local storage to described new server node, after described new server node receives described heartbeat data packets, according to the IP list characteristics value of carrying in described heartbeat data packets and resource status characteristic value, send server ip address list update request and resource status update request to described existing server node;
After described new server node receives the server ip address list update response that described existing server node sends over, replace local original server ip address list stored with the server ip address list of the described existing server node carried in described server ip address list update response, and replace local original IP address list characteristic value stored with carrying IP address list characteristic value in described heartbeat data packets; Receive after resource status that described existing server node sends over upgrades response, local original data resource list stored is replaced in the data resource list upgrading the described existing server node carried in response with described resource status, and replaces local original Secondary resource status flag value stored with carrying resource status characteristic value in described heartbeat data packets.
Server node in distributed server system described in 12. according to Claim 8 or 9 or 10, it is characterized in that, when removing Geju City server node in described distributed server system, the network disconnected between described legacy server node and other server node connects, an existing server node is chosen in described distributed server system, in the server ip address list of this existing server node, delete the IP address of described legacy server node, and upgrade the IP list characteristics value of described existing server node;
Described existing server node sends the heartbeat data packets of carrying the local IP list characteristics value stored to other server node, after other server node described receives described heartbeat data packets, according to the IP list characteristics value of carrying in described heartbeat data packets, send the request of server ip address list update to described existing server node;
After other server node described receives the server ip address list update response that described existing server node sends over, replace local original server ip address list stored with the server ip address list of the described existing server node carried in described server ip address list update response, and replace local original IP address list characteristic value stored with carrying IP address list characteristic value in described heartbeat data packets.
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