CN113391759B - Communication method and equipment - Google Patents
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- 238000004891 communication Methods 0.000 title claims abstract description 65
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0602—Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
- G06F3/061—Improving I/O performance
- G06F3/0611—Improving I/O performance in relation to response time
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
- G06F3/0655—Vertical data movement, i.e. input-output transfer; data movement between one or more hosts and one or more storage devices
- G06F3/0659—Command handling arrangements, e.g. command buffers, queues, command scheduling
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0668—Interfaces specially adapted for storage systems adopting a particular infrastructure
- G06F3/067—Distributed or networked storage systems, e.g. storage area networks [SAN], network attached storage [NAS]
Abstract
The application provides a communication method and communication equipment, which are used for solving the problem of IO request processing blocking when a distributed storage system is upgraded in the prior art, and relate to the technical field of distributed computers. In the application, a management cluster responds to an identification of a server to be upgraded from an upgrading framework, and determines second routing information according to first routing information of the server to be upgraded; and sending the second routing information to the client and other servers except the server to be upgraded. Based on this scheme, the management cluster may determine the second routing information before upgrading the server to be upgraded. Because the server to be upgraded in the second routing information is not used as a main server of the data, the server to be upgraded does not receive the IO request sent by the client, and the client can send the IO request to the main server of the data in the second routing information according to the second routing information, so that the IO request can be processed in time and the high-delay requirement can be met.
Description
Technical Field
The present disclosure relates to the field of distributed computer technologies, and in particular, to a communication method and apparatus.
Background
For a distributed storage system, an input/output (IO) request is issued from a user side, and the whole process needs cooperation of multiple components, which may include a client, a server and a management cluster, until the input/output request finally falls into a storage pool.
The client is responsible for accessing and processing IO requests. The client calculates a data partition (partition) where the data is located through a data routing algorithm, and then forwards an IO request to a server to which the corresponding data partition belongs according to the routing information, wherein the IO request is used for requesting the server to perform data input/output operation.
The server is a component unit of the storage pool and is responsible for disk management and specific IO operation. The distributed storage system ensures the reliability of data through a multi-server backup mechanism, and the same data can have 2 to 3 servers. The plurality of servers comprise a main server and a plurality of standby servers, wherein the data partition on the main server is a main copy, and the data partition on the standby server is a standby copy. When one IO request is issued to the main server, the main server copies the IO request to the standby server according to the routing information, so that the consistency of the multi-server data is realized.
The management cluster is responsible for generating routing information. The mapping relation between the data partition and the server is recorded in the routing information. The management cluster may also create a storage pool, e.g., the management cluster may generate routing information based on the initial storage pool topology and notify each client and each server of the routing information, so that the distributed storage system may forward IO requests to the corresponding primary server based on the routing information. In addition, the management cluster can monitor the state of the server through a heartbeat detection mechanism.
The current distributed storage system upgrades by upgrading the management cluster and then upgrading the server or client. In the upgrading process, the server cannot report the heartbeat. At this time, the management cluster may determine that the server is down, and the IO request cannot be forwarded to the server. However, since the client can only send the IO request to the primary server, if the primary server is upgrading when the IO request reaches the client, the primary server cannot receive and process the IO request sent by the client, and after the management cluster selects a new primary server and updates the routing information, the client routes the IO request to the new primary server according to the updated routing information, so that the new primary server can process the IO request issued by the client, and there is a response delay of the IO request, which is unacceptable for the delay-sensitive service.
Disclosure of Invention
The application provides a communication method and communication equipment, which are used for solving the problem of IO request processing blocking when a distributed storage system is upgraded in the prior art.
In a first aspect, embodiments of the present application provide a communication method that may be performed by a management cluster in a distributed storage system. The management cluster may include at least one server or a chip in a server for management. In the method, a management cluster can respond to the identification of a server to be upgraded from an upgrading framework, and determine second routing information according to first routing information of the server to be upgraded; the management cluster may also send the second routing information to the client and other servers except the server to be upgraded. And the server to be upgraded in the second routing information is not used as a main server of the data.
Based on the scheme, before the server to be upgraded is upgraded, the management cluster can determine second routing information according to the first routing information of the server to be upgraded, and send the second routing information to the client and other servers except the server to be upgraded. Because the server to be upgraded in the second routing information is not used as a main server of data, the server to be upgraded does not receive the IO request sent by the client, and the client can send the IO request to a new main server of the data in the second routing information according to the second routing information, so that the IO request can be processed in time and the high-delay requirement can be met.
In one possible implementation manner, if the server to be upgraded is a primary server, the management cluster may adjust the server to be upgraded to be a backup server of the data, and may adjust one of the backup servers corresponding to the server to be upgraded to be the primary server of the data.
Based on the scheme, if the server to be upgraded is a data main server, the server to be upgraded can be adjusted to be a data standby server in the second routing information, one of the corresponding standby servers is adjusted to be the data main server, and the client can send the IO request to the data main server in the second routing information according to the second routing information, so that the IO request can be processed in time, and the high delay requirement can be met.
In one possible implementation, the second routing information may not include the server to be upgraded. Illustratively, the management cluster may delete the server to be upgraded from the second routing information.
Based on the scheme, the server to be upgraded does not receive the IO request sent by the client and the IO request rewritten by the main server of the data, so that the IO request is not blocked when being processed, and the high-delay requirement can be met.
In a possible implementation manner, the management cluster may further determine third routing information according to the second routing information; the server to be upgraded in the third routing information is a main server of the data; and sending the third route information to the client, the server to be upgraded and other servers except the server to be upgraded. For example, the management cluster may determine the third routing information after the server to be upgraded is upgraded. Alternatively, the management cluster may send the third routing information after the server to be upgraded is upgraded.
Based on the scheme, after the server to be upgraded is upgraded, third routing information can be determined according to the second routing information, and the server to be upgraded in the third routing information is a main server of data. Therefore, the client can send the IO request to the server to be upgraded according to the third routing information, and the server to be upgraded can process the IO request and rewrite the IO request and send the IO request to the backup server of the data, so that the backup server can also process the IO request.
In a possible implementation manner, the management cluster may further determine fourth routing information according to the second routing information; the fourth routing information comprises the server to be upgraded. If the server to be upgraded is used as the main server of the data in the first route information, the server to be upgraded is used as the main server of the data in the fourth route information, or if the server to be upgraded is used as the standby server of the data in the first route information, the server to be upgraded is used as the standby server of the data in the fourth route information. The management cluster may send the fourth routing information to the client, the server to be upgraded, and other servers except the server to be upgraded.
Based on the scheme, when the server to be upgraded in the first routing information is a main server, the server to be upgraded in the third routing information is still the main server, and when the server to be upgraded in the first routing information is a standby server, the server to be upgraded in the third routing information is still the standby server.
In one possible implementation, the management cluster may also stop heartbeat detection of the server to be upgraded. For example, the management cluster may stop heartbeat detection of the server to be upgraded after sending the second routing information.
Based on the scheme, the management cluster can stop heartbeat detection of the server to be upgraded, and can avoid the update operation of the routing information triggered by the fact that the server to be upgraded cannot send a heartbeat packet to the management cluster when upgrading, so that IO requests sent by the client can be processed in time, and high time delay requirements can be met.
In one possible implementation manner, the management cluster may further stop heartbeat detection of the server to be upgraded, and resume heartbeat detection of the server to be upgraded after sending the third routing information.
Based on the scheme, after the third route information is sent to the client and the main and standby servers of the data, heartbeat detection is carried out on the server to be upgraded, the management cluster can monitor the working state of the server to be upgraded, and when the server to be upgraded fails, the route information of the data is updated in time.
In one possible implementation, the management cluster may also stop heartbeat detection of the server to be upgraded; and after the fourth routing information is sent, recovering the server to be upgraded to perform heartbeat detection.
Based on the scheme, after the fourth routing information is sent to the client and the main and standby servers of the data, heartbeat detection is carried out on the server to be upgraded, the management cluster can monitor the working state of the server to be upgraded, and when the server to be upgraded fails, the routing information of the data is updated in time.
In a second aspect, embodiments of the present application further provide a communication apparatus, which may include: the processing unit is used for responding to the identification of the server to be upgraded from the upgrading framework and determining second routing information according to the first routing information of the server to be upgraded; the receiving and transmitting unit can be used for transmitting the second routing information to a client and other servers except the server to be upgraded; and the server to be upgraded in the second routing information is not used as a main server of data.
In one possible implementation manner, if the server to be upgraded is a main server, the processing unit may be specifically configured to: the server to be upgraded is adjusted to be a standby server of the data; and adjusting one of the standby servers corresponding to the server to be upgraded to be the main server of the data.
In one possible implementation manner, the processing unit may determine, according to the first routing information of the server to be upgraded, second routing information without including the server to be upgraded.
In a possible implementation, the processing unit may be further configured to: determining third routing information according to the second routing information; the server to be upgraded in the third routing information is a main server of the data; and sending the third route information to the client and other servers except the server to be upgraded.
In a possible implementation, the processing unit may be further configured to: determining fourth routing information according to the second routing information; the fourth routing information comprises the server to be upgraded; if the server to be upgraded is used as the main server of the data in the first route information, the server to be upgraded is used as the main server of the data in the fourth route information, or if the server to be upgraded is used as the standby server of the data in the first route information, the server to be upgraded is used as the standby server of the data in the fourth route information; the transceiver unit may be further configured to: and sending the fourth routing information to the client and other servers except the server to be upgraded.
In a possible implementation, the processing unit may be further configured to: and after the second routing information is sent to the client and other servers except the server to be upgraded, stopping heartbeat detection of the server to be upgraded.
In a possible implementation, the processing unit may be further configured to: after the second routing information is sent to the client and other servers except the server to be upgraded, stopping heartbeat detection of the server to be upgraded; and after the third route information is sent to the client and other servers except the server to be upgraded, heartbeat detection is carried out on the server to be upgraded.
In a possible implementation, the processing unit may be further configured to: after the second routing information is sent to the client and other servers except the server to be upgraded, stopping heartbeat detection of the server to be upgraded; and after the fourth routing information is sent to the client and other servers except the server to be upgraded, heartbeat detection is carried out on the server to be upgraded.
In a third aspect, embodiments of the present application further provide a communication device, which may be used to perform the operations of the first aspect and any possible implementation manner of the first aspect. For example, the communication device may comprise means or units for performing the operations of the first aspect or any possible implementation of the first aspect. Such as a processing unit and a transceiver unit.
In a fourth aspect, embodiments of the present application provide a computer program product comprising: computer program code which, when run by a communication unit, processing unit or transceiver, processor of a communication device, causes the communication device to perform any of the above-described first aspect or any of the possible implementations of the first aspect.
In a fifth aspect, embodiments of the present application provide a computer-readable storage medium storing a program that causes a communication device to perform any one of the above-described first aspect or any possible implementation manner of the first aspect.
In a sixth aspect, embodiments of the present application provide a chip or a chip system for performing any one of the above-mentioned first aspect or any possible implementation manner of the first aspect. The chip may include a processor, or include a processor and a memory and/or transceiver. The chip system may include the chip.
The technical effects that can be achieved by any one of the above second to sixth aspects and any one of the possible designs of any one of the aspects may be referred to the description of the advantageous effects of the method of the first aspect.
Drawings
FIG. 1 is a distributed storage system provided herein;
FIG. 2 is one of exemplary flow charts of the pass method provided herein;
FIG. 3 is one of exemplary flow charts of the pass method provided herein;
FIG. 4 is one of exemplary flow charts of the pass method provided herein;
fig. 5 is a schematic diagram of a communication device provided in the present application;
fig. 6 is a schematic diagram of a communication device provided in the present application.
Detailed Description
In the following, in order to facilitate understanding of the technical solutions of the embodiments of the present application, a simple explanation and description will be first made on a distributed storage system.
The distributed storage system may include clients, servers, and management clusters. For one IO request from the user side, the processing of the distributed storage system may include the following flow.
First, the client may be responsible for access and processing of IO requests. The client calculates a data partition where the data corresponding to the IO request is located through a data routing algorithm, and then forwards the IO request to a server corresponding to the data partition where the IO request is located according to the routing information.
Second, specific IO operations may be performed by a server, which may include a primary server and at least one backup server. The client may send the IO request to the primary server, and the primary server may send the IO request to the backup server in duplicate. The main server and the standby server respectively execute IO operation to keep the data synchronous.
It should be understood that the primary server and the backup server are data-specific, that is, there is one primary server and at least one backup server corresponding to the same data. The same data may be data of the same user and/or the same service, for example, data of the same client and/or the same service may be stored in the same main server and the same at least one backup server.
In a distributed storage system, a management cluster may be responsible for generating routing information that may be used to determine the servers that store the data. The routing information may be, for example, a data routing table. The mapping relation between the data partition and the server can be recorded in the data routing table, and the data partition can correspond to the main server side and/or the standby server side of the data, so that the main server side and/or the standby server side corresponding to the data can be determined according to the mapping relation. The routing information may record a plurality of servers storing data. Meanwhile, the management cluster monitors the state of the server through a heartbeat detection mechanism.
For the upgrade of the distributed storage system, the upgrade process in the prior art may include: checking the environment, replacing the executable file, updating the configuration, and restarting the process. If the server cannot report the heartbeat in the upgrading process, the management cluster updates the routing information, and after the server is successfully upgraded and the heartbeat is reported again, the routing information is updated again, so that the IO request is sent to the server.
In the process of upgrading the server, if the client sends the IO request to the server being upgraded, the server cannot process the IO request in time, and the IO request can be processed only after the server is upgraded, so that the processing time delay of the IO request exists. However, this is unacceptable for delay sensitive traffic.
In view of this, embodiments of the present application provide a communication method. The technical scheme of the embodiment of the application can be applied to a distributed storage system. Such as server-level secured distributed storage systems, cabinet-level secured distributed storage systems, and the like.
To facilitate understanding of embodiments of the present application, a distributed storage system suitable for use in embodiments of the present application will be described in detail first with reference to the distributed storage system shown in fig. 1. As shown in fig. 1, an exemplary distributed storage system 100 may include a client 101, a primary server 102, a backup server 103, and a management cluster 104.
It should be appreciated that the client 101, primary server 102, backup server 103, and management cluster 104 may also include a plurality of components (e.g., processors, modulators, multiplexers, demodulators, or demultiplexers, etc.) related to the transmission and reception of signals.
The client 101 may be a terminal device. The terminal device may also be referred to as a User Equipment (UE), an access terminal device, a subscriber unit, a subscriber station, a mobile station, a remote terminal device, a mobile device, a user terminal device, a wireless communication device, a user agent, or a user equipment. The terminal device in the embodiment of the present application may specifically be a mobile phone (mobile phone), a tablet computer (pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal device, an augmented reality (augmented reality, AR) terminal device, a wireless terminal device in industrial control (industrial control), a wireless terminal device in unmanned driving (self driving), a wireless terminal device in telemedicine (remote media), a wireless terminal device in smart grid (smart grid), a wireless terminal device in transportation security (transportation safety), a wireless terminal device in smart city (smart city), a wireless terminal device in smart home (smart home), or the like. The embodiments of the present application are not limited to application scenarios. In the present application, a terminal device having a wireless transmitting/receiving function and a chip that can be provided in the terminal device are collectively referred to as a terminal device.
The management cluster 104, the main server 102 and the standby server 103 may be devices with wireless transceiver functions or chips in the devices respectively; the management cluster 104, the main server 102, and the standby server 103 may be one server, respectively, or a server cluster composed of a plurality of servers; or may be a server or a chip in a server cluster.
In the distributed storage system 100, both the primary server 102 and the management cluster 104 may communicate with one or more clients, including but not limited to client 101 shown in the figures. Both the primary server 102 and the management cluster 104 may communicate with one or more terminal devices, e.g., client 101. It should be appreciated that the distributed storage system 100 shown in fig. 1 may have one or more backup servers 103, and that the primary server 102 and the management cluster 104 may communicate with the one or more backup servers 103.
It should be appreciated that fig. 1 is a simplified schematic diagram that is merely illustrative for ease of understanding, and that other clients or other servers may be included in the distributed storage system, which are not shown in fig. 1.
Embodiments of the present application are described in detail below with reference to the accompanying drawings.
It should be appreciated that the technical solution of the present application may be applied to a distributed storage system, for example, the distributed storage system 100 shown in fig. 1, where the communication system may include at least one management cluster and at least one client, at least one primary server and at least one backup server.
Fig. 2 is an exemplary flowchart of a communication method provided by an embodiment of the present application, shown from a device interaction perspective. As shown in fig. 2, the method may include:
step 201: the upgrade framework sends the identification of the server to be upgraded to the management cluster.
The identification of the server to be upgraded from the upgrading framework is used for indicating the server to be upgraded which needs to be upgraded.
The upgrade framework is used to upgrade the server. The upgrade framework may be a program having an upgrade function, or may also be a package or carrier for a program having an upgrade function. The upgrade framework and management clusters may take a centralized or distributed arrangement.
It should be understood that the upgrade framework may only send the identifier of the server to be upgraded to the management cluster, or may send the identifier of the server to be upgraded to the management cluster with the identifier of the server to be upgraded in the upgrade request. The upgrade request may carry one or more identifiers of the servers to be upgraded.
Step 202: and the management cluster responds to the identification of the server to be upgraded, and determines second routing information according to the first routing information of the server to be upgraded.
The routing information may include a mapping relationship between the data partition and the server, and may further include failure information. For example, the failure information of the backup server 1 may be stored in the route information at the time of failure of the backup server 1. Then, when the primary server rewrites the IO request, the rewritten IO request is not transmitted to the backup server 1. The above failure information may be used to flag a server that has failed and/or to flag what kind of failure the server has.
The first routing information may be routing information determined by the management cluster for the data before the management cluster receives the identification of the server to be upgraded. In the first route information, the server to be upgraded can be used as a main server or a standby server of data. And in the second routing information, the server to be upgraded is not used as a main server of the data. In the following, an implementation manner of upgrading the second routing information according to the first routing information is specifically described.
In one example, if the server to be upgraded is a primary server of data, the management cluster may adjust the server to be upgraded to be a backup server of data. The adjusting the server to be upgraded to the backup server of the data may mean that the management cluster adjusts the identity of the server to be upgraded in the routing information from the primary server of the data to the backup server of the data; or, deleting the information of the server to be upgraded from the information of the main server of the data in the routing information by the management cluster, and adding the information of the server to be upgraded to the information of the standby server of the data. Wherein the identity of the server to be upgraded is e.g. a primary or a backup server of data.
The management cluster can also adjust one of the standby servers corresponding to the server to be upgraded to be the main server of the data. Similarly, the step of integrating one of the backup servers corresponding to the server to be upgraded into the primary server of the data may mean that the management cluster adjusts the identity of one of the backup servers corresponding to the server to be upgraded in the routing information from the backup server of the data to the primary server of the data; or, the management cluster deletes the information of the standby server from the information of the standby server of the data in the routing information, and adds the information of the standby server to the information of the main server of the data. The management cluster can adjust one backup server which is not faulty in the backup servers corresponding to the servers to be upgraded to be the main server of the data. It should be appreciated that after the server to be upgraded is tuned to the standby server, the primary server will not send the duplicate IO request to the server to be upgraded, and thus the server to be upgraded is not required to respond to the IO request.
For example, the primary server of the data a in the first routing information is the primary server 1, and the backup servers include the backup server 1, the backup server 2, and the backup server 3, wherein the backup server 2 is a failed server. The management cluster may generate the second routing information from the first routing information in response to the identification of the primary server 1 sent by the upgrade framework. In the second routing information, the main server 1 is adjusted to be a backup server, and one backup server is selected from the backup servers 1 and 3 to be adjusted to be the main server, for example, the backup server 3 is adjusted to be the main server. The server to be upgraded (i.e. the primary server 1) will not receive the IO request duplicated by the primary server (the backup server 3) in the second routing information.
In another example, if the server to be upgraded is a backup server of data, the management cluster may delete the backup server from the first routing information. The step of deleting the standby server from the first routing information may mean that the management cluster deletes the information of the server to be upgraded from the information of the standby server of the data in the first routing information. Alternatively, the management cluster may also mark the server to be upgraded as failed, and the primary server of the data will not send a duplicate IO request to the server to be upgraded.
For example, the primary server of the data a in the first routing information is primary server a, and the backup servers include backup server b, backup server c and backup server d. The management cluster responds to the standby server b and generates second routing information according to the first routing information. The second routing information may not include information related to the backup server b. Alternatively, the second routing information backup server b may be marked as failed.
If the upgrade request sent by the upgrade framework includes two or more identifiers of the servers to be upgraded, the management cluster may generate second routing information of each server to be upgraded respectively. For example, in two or more servers to be upgraded, one server to be upgraded which is not yet upgraded is randomly selected, second routing information of the randomly selected server to be upgraded is generated, and the upgrade of the randomly selected server to be upgraded can be performed by the upgrade framework. And after the upgrading framework upgrades the server to be upgraded, randomly selecting one server to be upgraded which is not yet upgraded from the two or more servers to be upgraded. And so on until two or more servers to be upgraded are all upgraded.
Alternatively, the management cluster may further select a specified number of servers to be upgraded from two or more servers to be upgraded, and generate second routing information of the selected specified number of servers to be upgraded, and then the upgrade framework may upgrade the specified number of servers to be upgraded. In addition, after the specified number of servers to be upgraded are upgraded, the specified number (or other number except the specified number) of servers to be upgraded which are not yet upgraded are selected from the two or more servers to be upgraded again, the specified number of servers to be upgraded are upgraded by the upgrade framework, and the like until all the servers to be upgraded are upgraded. By adopting the design, all servers to be upgraded can be prevented from being upgraded at the same time, so that the response speed of the distributed storage system to IO requests is improved.
For example, the primary server of the data a in the first routing information is primary server 1, and the backup servers include backup server 1, backup server 2, backup server 3, and backup server 4. The upgrade request sent by the upgrade framework comprises a main server 1, a standby server 1 and a standby server 2. The management cluster may select any two servers to be upgraded in the upgrade request, and generate second routing information of the any two servers to be upgraded. For example, the primary server 1 and the backup server 2 may be selected, and specific updating manners are the same as the foregoing methods, which are not described herein. In this way, the IO request for data a can also be processed by the backup server 1, the backup server 2, and the backup server 4. Even if any two servers among the backup server 1, the backup server 2, and the backup server 4 fail, the IO request of the data a can be handled.
It should be noted that, according to the second routing information, the server to be upgraded does not receive the IO request sent by the client, and also does not receive the IO request rewritten by the main server. In the upgrading process of the server, if the server is a main server, the IO request sent by the client cannot be received, and after the update route information of the management cluster is required to be waited, the client can send the IO request to the updated main server according to the updated route information. If the server is a standby server, when the IO request rewritten by the main server is received, the IO request can be processed after the upgrade is waited for. Based on the scheme, the server to be upgraded does not receive the IO request sent by the client and the IO request rewritten by the main server, so that the IO request can be ensured to be processed in time without waiting for updating the route information or waiting for the completion of upgrading of the server to be upgraded, and the high-delay requirement of the service can be met.
Step 203: and the management cluster sends the second routing information to the client and other servers except the server to be upgraded.
The other servers except the server to be upgraded can comprise a main server corresponding to the data and other standby servers except the server to be upgraded in the second routing information.
Alternatively, the management cluster may perform heartbeat detection on the primary server and the backup server of the data according to the second routing information. The management cluster may stop performing heartbeat detection on the server to be upgraded. Therefore, the second routing information can be updated in time when the monitored server fails according to the working state of each server of the heartbeat detection monitoring data. The server to be upgraded can not send the heartbeat packet to the management cluster, and the heartbeat packet can not be sent when the server is upgraded, so that the management cluster is triggered to update the second routing information, and the IO request with high time delay requirement can be timely processed.
Optionally, the management cluster may also send a reply message to the upgrade framework for the identification of the server to be upgraded. The upgrade framework may upgrade the server to be upgraded in response to the reply message.
Based on the scheme, the management cluster can update the route information according to the identification of the server to be upgraded, so that the server to be upgraded does not receive the IO request of data during upgrading, the IO request can be ensured to be processed in time, and the response speed of the distributed system to the IO request is improved.
In this embodiment of the present application, after the server to be upgraded is successfully upgraded, the management cluster may update the second routing information, and restore the identity of the server to be upgraded to the identity of the server in the first routing information. Fig. 3 is an exemplary flowchart of a communication method provided by an embodiment of the present application, which is shown from the perspective of device interaction. In fig. 3, the server to be upgraded is a main server of data in the first routing information.
Step 301: after the server to be upgraded is successfully upgraded, the upgrading framework sends the identification of the server to be upgraded to the management cluster.
Step 302: the management cluster determines third routing information according to the second routing information.
In the third routing information, the server to be upgraded is a main server of the data. It should be understood that, since the server to be upgraded in the first routing information is the main server, the server to be upgraded in the third routing information is also the main server.
In one possible implementation, the management cluster may perform heartbeat detection on the server to be upgraded, and the server to be upgraded may send a heartbeat packet to the management cluster every specified period. The specified period may be predetermined according to an empirical value, for example, 10s,15s, etc., which is not particularly limited in this application.
Step 303: and the management cluster sends the third routing information to the client, the server to be upgraded and other servers except the server to be upgraded.
The other servers except the server to be upgraded can comprise a standby server corresponding to the data in the third routing information. In this way, the IO request of the client may be sent to the primary server (i.e. the server to be upgraded) according to the third routing information, and the primary server may also copy the IO request and send the IO request to the corresponding backup server.
It should be appreciated that the flow illustrated in fig. 3 above may be performed after step 203.
If the server to be upgraded is a standby server of the data in the first routing information, the management cluster can generate fourth routing information according to the second routing information, and the identity of the server to be upgraded is recovered to the identity of the server to be upgraded in the first routing information. Fig. 4 is an exemplary flowchart of a communication method provided by an embodiment of the present application, which is shown from the perspective of device interaction.
Step 401: after the server to be upgraded is successfully upgraded, the upgrading framework sends the identification of the server to be upgraded to the management cluster.
Step 402: the management cluster determines fourth routing information according to the second routing information.
If the server to be upgraded in the first route information is the main server of the data, the server to be upgraded in the fourth route information is the main server of the data. If the server to be upgraded in the first route information is a data backup server, the data backup server in the fourth route information.
The management cluster can also perform heartbeat detection on the server to be upgraded, and the server to be upgraded can send a heartbeat packet to the management cluster every appointed period.
Step 403: and the management cluster sends the fourth routing information to the client, the server to be upgraded and other servers except the server to be upgraded.
The other servers except the server to be upgraded can comprise a main server corresponding to the data in the fourth routing information and other standby servers except the server to be upgraded.
In this way, the IO request of the client may be sent to the primary server according to the fourth routing information, and the primary server may rewrite the IO request, and send the rewritten IO request to each backup server according to the fourth routing information.
It should be appreciated that the flow illustrated in fig. 4 above may be performed after step 203.
The communication method of the embodiment of the present application is described in detail above with reference to fig. 1 to 4. The following describes in detail the communication device according to the embodiment of the present application with reference to fig. 5.
Fig. 5 shows a schematic structural diagram of a communication device 500 according to an embodiment of the present application. The communication device 500 may be used to implement the method described in the above method embodiments, which may be implemented by the management cluster 104 shown in fig. 1, and in particular, reference may be made to the description in the above method embodiments. The communication device 500 may be a chip or a server cluster or the like.
The communication device 500 includes one or more processors 501. The processor 501 may be a general purpose processor or a special purpose processor, etc. For example, a baseband processor, or a central processing unit. The baseband processor may be used to process communication protocols and communication data, and the central processor may be used to control a communication device (e.g., a server cluster, or a chip, etc.), execute a software program, and process the data of the software program. The communication device may comprise a transceiver unit 505 for enabling input (reception) and output (transmission) of signals. For example, the communication device may be a chip, and the transceiver unit 505 may be an input and/or output circuit of the chip, or a communication interface. The chip may be used for a terminal device or a server cluster. As another example, the communication device may be a terminal device, a server, or a server cluster, and the transceiver unit may be a transceiver, a radio frequency chip, or the like.
The communication device 500 includes one or more of the processors 501, the one or more processors 501 may implement the methods of the embodiments shown in fig. 2-4.
In one possible design, the communication device 500 includes means (means) for determining second routing information based on the first routing information of the server to be upgraded. The second routing information and how to generate the second routing information may be referred to the relevant description in the method embodiments described above. The identification of the server to be upgraded may be received, for example, through a transceiver, or an interface of an input/output circuit, or a chip, and the second routing information may be generated by one or more processors. Alternatively, the processor 501 may implement other functions in addition to the methods of implementing the embodiments shown in fig. 2-4.
Alternatively, in one design, the processor 501 may execute the instructions 503 to cause the communication device 500 to perform the method described in the method embodiment above. The instructions 503 may be stored in whole or in part within the processor or in whole or in part in a memory 502 coupled to the processor.
In yet another possible design, the communication device 500 may also include circuitry that may implement the functionality of the foregoing method embodiments.
In yet another possible design, the communication device 500 may include one or more memories 502 having instructions 504 stored thereon that are executable on the processor to cause the communication device 500 to perform the methods described in the method embodiments above. Optionally, the memory may further store data. The optional processor may also store instructions and/or data. For example, the one or more memories 502 may store the second routing information described in the above embodiments, or the third routing information related to the above embodiments, and so on. The processor and the memory may be provided separately or may be integrated.
In one possible implementation, the communication apparatus 600 as shown in fig. 6 may be used as a management cluster according to the above-described method embodiment, and perform the steps performed by the management cluster in the above-described method embodiment. As shown in fig. 6, the communication device 600 may include a communication unit 601 and a processing unit 602, where the communication unit 601 and the processing unit 602 are coupled to each other. The communication unit 601 may be used to support the communication of the communication device 600, and the communication unit 601 may have a wired communication function. The processing unit 602 may be configured to support the communication device 600 to perform the processing actions in the method embodiments described above, including but not limited to: generates information, messages, and/or parses signals received by the communication unit 601, etc., transmitted by the communication unit 601.
In performing the actions performed by the first communication device in the above-described method embodiments, the communication unit 601 may be configured to receive an identification of a server to be upgraded from the upgrade framework; or the second routing information can be further used for sending the second routing information to the client and other servers except the server to be upgraded.
The processing unit 602 may be configured to determine, in response to the identification of the server to be upgraded from the upgrade framework, second routing information according to the first routing information of the server to be upgraded, the second routing information and how to generate the second routing information may be referred to as related descriptions in the above method embodiments.
In one design, the processing unit 602 may be further configured to determine third routing information according to the second routing information, where the third routing information and how to determine the third routing information may be described in the related description in the above method embodiments; the communication unit 601 may be further configured to send the third routing information to the client, the server to be upgraded, and other servers than the server to be upgraded.
In one design, the processing unit 602 may be further configured to determine fourth routing information according to the second routing information, where the fourth routing information and how to determine the fourth routing information may be described in the related description in the above method embodiments; the communication unit 601 may be further configured to send the fourth routing information to the client, the server to be upgraded, and other servers except the server to be upgraded.
In one design, processing unit 602 may also be used to stop heartbeat detection for the server to be upgraded. Alternatively, the processing unit 602 may be further configured to perform heartbeat detection on the server to be upgraded. How to perform heartbeat detection on the server to be upgraded can be referred to the relevant description in the method embodiment.
It should be noted that the processor in the embodiments of the present application may be an integrated circuit chip with signal processing capability. In implementation, the steps of the above method embodiments may be implemented by integrated logic circuits of hardware in a processor or instructions in software form. The processor may be a general purpose processor, a digital signal processor (digital signal processor, DSP), an application specific integrated circuit (application specific integrated circuit, ASIC), an off-the-shelf programmable gate array (field programmable gate array, FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components. The disclosed methods, steps, and logic blocks in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in connection with the embodiments of the present application may be embodied directly in hardware, in a decoded processor, or in a combination of hardware and software modules in a decoded processor. The software modules may be located in a random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in a memory, and the processor reads the information in the memory and, in combination with its hardware, performs the steps of the above method.
It will be appreciated that the memory in embodiments of the present application may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an electrically Erasable EPROM (EEPROM), or a flash memory. The volatile memory may be random access memory (random access memory, RAM) which acts as an external cache. By way of example, and not limitation, many forms of RAM are available, such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous RAM (synchlinkDRAM, SLDRAM), and direct RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.
The present application also provides a computer-readable medium having stored thereon a computer program which, when executed by a computer, implements the communication method according to any of the method embodiments described above.
The present application also provides a computer program product, which when executed by a computer, implements the communication method according to any one of the method embodiments.
In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on a computer, the processes or functions described in accordance with embodiments of the present application are produced in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by a wired (e.g., coaxial cable, fiber optic, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains an integration of one or more available media. The usable medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a high-density digital video disc (digital video disc, DVD)), or a semiconductor medium (e.g., a Solid State Disk (SSD)), or the like.
The embodiment of the application also provides a communication device, which comprises a processor and an interface; the processor is configured to execute the communication method according to any one of the method embodiments.
It should be understood that the processing device may be a chip, and the processor may be implemented by hardware or software, and when implemented by hardware, the processor may be a logic circuit, an integrated circuit, or the like; when implemented in software, the processor may be a general-purpose processor, implemented by reading software code stored in a memory, which may be integrated in the processor, or may reside outside the processor, and exist separately.
In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
Claims (18)
1. A method of communication, comprising:
responding to the identification of the server to be upgraded from the upgrading framework, and determining second routing information according to the first routing information of the server to be upgraded; the first routing information comprises a mapping relation between a data partition and a server;
And sending the second routing information to the client and other servers except the server to be upgraded, wherein the second routing information comprises the mapping relation between the data partition and the server, and the server to be upgraded in the second routing information is not used as a main server of the data.
2. The method of claim 1, wherein if the server to be upgraded is a primary server, the determining the second routing information according to the first routing information of the server to be upgraded comprises:
the server to be upgraded is adjusted to be a standby server of the data;
and adjusting one of the standby servers corresponding to the server to be upgraded to be the main server of the data.
3. The method of claim 1, wherein the determining the second routing information based on the first routing information of the server to be upgraded comprises:
the second routing information does not include the server to be upgraded.
4. The method according to claim 2, wherein the method further comprises:
determining third routing information according to the second routing information; the server to be upgraded in the third routing information is a main server of the data;
And sending the third route information to the client, the server to be upgraded and other servers except the server to be upgraded.
5. A method according to claim 3, characterized in that the method further comprises:
determining fourth routing information according to the second routing information; the fourth routing information comprises the server to be upgraded; if the server to be upgraded is used as the main server of the data in the first route information, the server to be upgraded is used as the main server of the data in the fourth route information, or if the server to be upgraded is used as the standby server of the data in the first route information, the server to be upgraded is used as the standby server of the data in the fourth route information;
and sending the fourth routing information to the client, the server to be upgraded and other servers except the server to be upgraded.
6. The method according to any one of claims 1-5, wherein after the sending the second routing information to the client and the other servers than the server to be upgraded, further comprises:
And stopping heartbeat detection of the server to be upgraded.
7. The method of claim 4, wherein after the sending the second routing information to the client and the other servers except the server to be upgraded, further comprises:
stopping heartbeat detection of the server to be upgraded;
after the third routing information is sent to the client, the server to be upgraded and other servers except the server to be upgraded, the method further comprises the following steps:
and performing heartbeat detection on the server to be upgraded.
8. The method of claim 5, wherein after the sending the second routing information to the client and the other servers except the server to be upgraded, further comprises:
stopping heartbeat detection of the server to be upgraded;
after the fourth routing information is sent to the client, the server to be upgraded and other servers except the server to be upgraded, the method further comprises the following steps:
and performing heartbeat detection on the server to be upgraded.
9. A communication device, comprising:
the processing unit is used for responding to the identification of the server to be upgraded from the upgrading framework and determining second routing information according to the first routing information of the server to be upgraded;
The receiving and transmitting unit is used for transmitting the second routing information to a client and other servers except the server to be upgraded; and the server to be upgraded in the second routing information is not used as a main server of data.
10. The apparatus of claim 9, wherein if the server to be upgraded is a main server, the processing unit is configured to, when determining the second routing information according to the first routing information of the server to be upgraded:
the server to be upgraded is adjusted to be a standby server of the data;
and adjusting one of the standby servers corresponding to the server to be upgraded to be the main server of the data.
11. The apparatus of claim 9, wherein the processing unit is configured to, when determining the second routing information according to the first routing information of the server to be upgraded:
the second routing information does not include the server to be upgraded.
12. The apparatus of claim 10, wherein the processing unit is further configured to:
determining third routing information according to the second routing information; the server to be upgraded in the third routing information is a main server of the data; and sending the third route information to the client and other servers except the server to be upgraded.
13. The apparatus of claim 11, wherein the processing unit is further configured to:
determining fourth routing information according to the second routing information; the fourth routing information comprises the server to be upgraded; if the server to be upgraded is used as the main server of the data in the first route information, the server to be upgraded is used as the main server of the data in the fourth route information, or if the server to be upgraded is used as the standby server of the data in the first route information, the server to be upgraded is used as the standby server of the data in the fourth route information;
the transceiver unit is further configured to: and sending the fourth routing information to the client and other servers except the server to be upgraded.
14. The apparatus according to any one of claims 9-13, wherein the processing unit is further configured to:
and after the second routing information is sent to the client and other servers except the server to be upgraded, stopping heartbeat detection of the server to be upgraded.
15. The apparatus of claim 12, wherein the processing unit is further configured to:
After the second routing information is sent to the client and other servers except the server to be upgraded, stopping heartbeat detection of the server to be upgraded; and after the third route information is sent to the client and other servers except the server to be upgraded, heartbeat detection is carried out on the server to be upgraded.
16. The apparatus of claim 13, wherein the processing unit is further configured to:
after the second routing information is sent to the client and other servers except the server to be upgraded, stopping heartbeat detection of the server to be upgraded;
and after the fourth routing information is sent to the client and other servers except the server to be upgraded, heartbeat detection is carried out on the server to be upgraded.
17. A communication device, comprising:
a memory storing a computer program; and
a processor for executing a computer program stored in the memory to cause an apparatus to perform the method of any one of claims 1-8.
18. A computer-readable storage medium, characterized in that computer-executable instructions for causing a computer to perform the method according to any one of claims 1-8 are stored.
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