CN107357529B - Storage cluster online upgrading method and system - Google Patents
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Abstract
The application discloses a storage cluster online upgrading method, which comprises the following steps: compiling cluster sharing information of the nodes in the storage cluster in a dynamic link library form; upgrading the private state information of the node; and after the upgrading of the private state information corresponding to all the nodes is completed, simultaneously upgrading the cluster shared information of all the nodes. The cluster sharing information of the nodes in the storage cluster is compiled in a dynamic link library mode, so that the cluster sharing information and the private state information of the nodes are upgraded without mutual interference, and the whole storage cluster is upgraded on line. According to the storage cluster online upgrading method, fewer objects need to be coordinated in the upgrading process, and the upgrading process is simpler. The application also provides an online upgrading system of the storage cluster, which has the beneficial effects.
Description
Technical Field
The present application relates to the field of SAN storage technologies, and in particular, to a method and a system for online upgrading a storage cluster.
Background
SAN (Storage Area Network, Chinese name) adopts a mesh channel technology, and is connected with a Storage array and a server host through an FC (fiber channel) switch to establish a local Area Network special for data Storage.
The storage cluster is a storage pool which can provide a uniform access interface and a management interface for an application server by aggregating storage spaces in a plurality of storage devices, and the application can transparently access and utilize the disks on all the storage devices through the access interface, so that the performance of the storage devices and the utilization rate of the disks can be fully exerted. Data is stored and read from a plurality of storage devices according to certain rules so as to obtain higher concurrent access performance.
In a client scenario, a service is upgraded online to meet the requirements of new features and debug. Because a plurality of working nodes exist in the storage system, the working nodes cooperatively work in the normal operation process, and the state information of the whole cluster (Chinese name: cluster) needs to be shared, such as how many nodes (Chinese name: nodes) are contained in the current cluster, how many LUNs (Logical Unit Number, LUN or LUN for short, Chinese name: logic Unit) are contained in the current cluster, and the like; meanwhile, each node maintains respective unique state, such as the ID of the cluster to which the current node belongs, the IO load condition of a certain LUN to which the node belongs, and the like. In summary, the online upgrade of the storage cluster system is higher in complexity than the online upgrade of a single-node system, and more objects need to be coordinated and more complex processing logic needs to be implemented.
Disclosure of Invention
The application aims to provide a storage cluster online upgrading method and system, which realize the online upgrading function of a storage cluster through a design idea of isolating a cluster state and a node state and solve the problems of more processing objects and complex processing logic in the existing storage cluster upgrading process.
In order to solve the above technical problem, the present application provides an online upgrade method for a storage cluster, and the technical scheme is as follows:
compiling cluster sharing information of the nodes in the storage cluster in a dynamic link library form;
upgrading the private state information of the node;
and after the upgrading of the private state information corresponding to all the nodes is completed, simultaneously upgrading the cluster shared information of all the nodes.
Before compiling the cluster sharing information of the nodes in the storage cluster in the form of a dynamic link library, the method further comprises the following steps:
establishing an upgrade installation package, and uploading the upgrade installation package to a configuration node which interacts with a user in the storage cluster; wherein the upgrade installation package includes the cluster sharing information and the private state information.
Before upgrading the private-state information of the node, the method further includes:
judging whether the cluster sharing information is compiled;
if so, upgrading the private state information of the node;
if not, compiling the cluster sharing information of the nodes in the storage cluster in the form of a dynamic link library again.
Wherein the upgrading the private-state information of the node comprises:
dividing and marking all nodes in the storage cluster according to every two node groups;
and upgrading the private state information of each group of corresponding nodes according to the label sequence.
The cluster sharing information is storage cluster state information shared among all the nodes in the storage cluster; the private state information is state information maintained by the nodes respectively.
The present application further provides an online upgrade system for a storage cluster, the system comprising:
the compiling module is used for compiling the cluster sharing information of the nodes in the storage cluster in a form of a dynamic link library;
the first upgrading module is used for upgrading the private state information of the node;
and the second upgrading module is used for upgrading the cluster shared information of all the nodes simultaneously after the upgrading of the private state information corresponding to all the nodes is completed.
Wherein the system further comprises:
the upgrading preparation module is used for constructing an upgrading installation package and uploading the upgrading installation package to a configuration node which interacts with a user in the storage cluster; wherein the upgrade installation package includes the cluster sharing information and the private state information.
Wherein the system further comprises:
the judging module is used for judging whether the cluster sharing information is compiled completely; if yes, executing a first upgrading module; if not, executing the compiling module.
Wherein the first upgrade module comprises:
the grouping submodule is used for dividing and marking all nodes in the storage cluster according to every two node groups;
and the upgrading submodule is used for upgrading the private state information of each group of corresponding nodes according to the label sequence.
The application provides an online upgrading method for a storage cluster, which comprises the following steps: compiling cluster sharing information of the nodes in the storage cluster in a dynamic link library form; upgrading the private state information of the node; and after the upgrading of the private state information corresponding to all the nodes is completed, simultaneously upgrading the cluster shared information of all the nodes. By the storage cluster online upgrading method, fewer objects needing to be coordinated are needed, and the upgrading process is simpler and more convenient. The application also provides an online upgrading system of the storage cluster, which has the beneficial effects.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a flowchart of an online upgrade method for a storage cluster according to an embodiment of the present disclosure;
fig. 2 is a flowchart of another storage cluster online upgrade method provided in an embodiment of the present application;
fig. 3 is a flowchart of another method for online upgrading a storage cluster according to an embodiment of the present application;
fig. 4 is a schematic diagram of an online upgrade system for a storage cluster according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1, fig. 1 is a flowchart of an online upgrade method for a storage cluster according to an embodiment of the present application, where the technical method includes:
s101: compiling cluster sharing information of the nodes in the storage cluster in a dynamic link library form;
the cluster shared information is storage cluster state information shared among all the nodes in the storage cluster, and logically can be regarded as the same state information.
After compiling, the cluster shared information exists in the form of a dynamic link library, the dynamic link library is relatively independent, and the cluster shared information can be dynamically loaded when the private state information runs. And when the private state information is upgraded, the cluster shared information serving as the dynamic link library can continue to work normally.
Further, before compiling cluster state information, an upgrade installation package may be constructed first, and the upgrade installation package is uploaded to a configuration node in the storage cluster, which is responsible for interaction with a user, to prepare for starting upgrade. The upgrade installation package may include cluster sharing information and private state information of the node, and may also include Lun related information.
S102: upgrading the private state information of the node;
in the upgrading process, the nodes cooperating around replace the task of the node to be upgraded, and the task is returned after the node to be upgraded is upgraded. In the present application, the task mainly includes cluster shared information and private-state information, and certainly may be other information existing in the node.
Before upgrading the private state information of the node, a judgment step may be added to judge whether the compiling of the cluster sharing information is completed. If compilation is not complete, the cluster sharing information is recompiled or continued to be compiled. If compilation is complete, then the private-state information of the node is upgraded. Certainly, the private state information of the node may not be judged, but is updated if the cluster shared information is not compiled, so that the cluster state is easily confused.
Furthermore, because the number of nodes in a storage cluster is quite large, these nodes may be grouped or zone upgraded. For example, every two nodes or every three nodes in a group are grouped and labeled, and then each group of corresponding nodes is upgraded according to the label sequence. Of course, other grouping methods are also possible, and the grouping method is not limited in this application. After the nodes in the storage cluster are grouped, the nodes can be upgraded by group. And after the private state information of the nodes in each group is completely upgraded, upgrading the private state information of the nodes in the next group.
S103: and after the upgrading of the private state information corresponding to all the nodes is completed, simultaneously upgrading the cluster shared information of all the nodes.
After the private state information of all the nodes in the storage cluster is completely upgraded, the cluster shared information is upgraded, and the upgrading is usually to update the cluster shared information, although other forms of upgrading are also possible.
The cluster state information needs to be ensured to be normally accessed in the upgrading process, so that the private state information of the nodes is upgraded first, and the cluster shared information can be upgraded after the private state information of all the nodes is completely upgraded, otherwise, the cluster state information is disordered, and the normal work of the storage cluster is influenced.
And after the private state information of all the nodes is completely upgraded, upgrading the cluster shared information. Because the cluster sharing information is shared by all nodes in the storage cluster, the upgrading can be completed at one time. Certainly, the upgrade may also be performed in batches, for example, the cluster shared information of a part of the nodes is upgraded first, and then the rest of the nodes are upgraded, which is not limited herein.
In the embodiment, the cluster shared information is compiled by adopting the dynamic link library, so that the nodes in the cluster are allowed to upgrade the private state information firstly and then upgrade the cluster shared information of all the nodes simultaneously, thereby orderly realizing the online upgrade of the whole storage cluster system and simplifying the upgrade process.
Example two
Referring to fig. 2, fig. 2 is a flowchart of another storage cluster online upgrade method provided in the embodiment of the present application. Before upgrading, in order to avoid confusion in the upgrading process, all nodes in the storage cluster can be divided and labeled according to a group of two nodes, and then the private state information of each group of corresponding nodes is upgraded according to the numbering sequence. The corresponding technical scheme is as follows:
s201: compiling cluster sharing information of the nodes in the storage cluster in a dynamic link library form;
s202: dividing and marking all nodes in the storage cluster according to every two node groups;
the two nodes may be adjacent nodes or functionally similar nodes. Grouping is to prevent the upgrading progress of different nodes from being different because the upgrading of the storage cluster causes confusion. After grouping, the system is sequentially upgraded according to the label sequence, so that individual nodes are not missed, and the upgrading efficiency is improved.
S203: upgrading the private state information of each group of corresponding nodes according to the label sequence;
each group has two nodes, for example, a node a and a node B, the node a starts to upgrade its own private state information after handing over its own service to the node B, the node B returns its service to the node a after the node a is upgraded, and then the node B hands over its own service to the upgraded node a according to the method and then upgrades it, thereby completing the cooperative upgrade between the two nodes. Therefore, two nodes are an optimal grouping mode, service handover confusion during upgrading is easy to occur when three or more nodes are a group, and unnecessary trouble is brought to the upgrading process.
S204: and after the upgrading of the private state information corresponding to all the nodes is completed, simultaneously upgrading the cluster shared information of all the nodes.
EXAMPLE III
Referring to fig. 3, fig. 3 is a flowchart of another method for online upgrading a storage cluster according to an embodiment of the present application, where the embodiment is a specific implementation manner of online upgrading a storage cluster, and a technical solution of the method is as follows:
s301: constructing a system installation package, uploading the installation package to a configuration node interacting with a user in a storage cluster, and preparing for upgrading;
the system installation package includes information required for storing cluster upgrade, i.e., cluster sharing information and private state information of all nodes, and of course, other information may also be present. The system installation package exists in a mirror image or other form.
S302: compiling cluster sharing information of the nodes in the storage cluster in a dynamic link library form;
the cluster shared information exists in the form of a dynamic link library, the dynamic link library is relatively independent, the cluster shared information can be dynamically loaded when the private state information runs, and the cluster shared information can continue to normally work as the dynamic link library when the private state information is upgraded.
S303: dividing and labeling all nodes in the storage cluster according to every two nodes in one group, and upgrading the private state information of each group of corresponding nodes according to the labeling sequence;
the upgrade of every two nodes in a group is the best grouping mode, and the upgrade confusion of the nodes in the group is not easy to cause.
S304: and after the upgrading of the private state information corresponding to all the nodes is completed, simultaneously upgrading the cluster shared information of all the nodes.
In the process of upgrading the private state information, it is required to ensure that the cluster state information can be normally accessed, so the private state information of the nodes is upgraded first, and the cluster shared information can be upgraded after all the private state information of all the nodes is completely upgraded, otherwise the cluster state information is disordered, and the normal work of the storage cluster is influenced.
And after the private state information of all the nodes is completely upgraded, upgrading the cluster shared information. The cluster sharing information is shared by all nodes in the storage cluster, so that one-time upgrading can be completed.
Since the embodiment of the system part corresponds to the embodiment of the method part, the embodiment of the system part is described with reference to the embodiment of the method part, and is not repeated here.
As shown in fig. 4, an embodiment of the present application further provides an online upgrade system for a storage cluster, where the system includes:
a compiling module 100, configured to compile cluster sharing information of nodes in the storage cluster in a form of a dynamic link library;
a first upgrade module 200, configured to upgrade private-state information of the node;
the second upgrade module 300 is configured to upgrade the cluster shared information of all the nodes simultaneously after the private-state information of all the nodes is upgraded.
Based on the above embodiment, as a preferred embodiment, the system may further include:
the upgrading preparation module is used for constructing an upgrading installation package and uploading the upgrading installation package to a configuration node which interacts with a user in the storage cluster; wherein the upgrade installation package includes the cluster sharing information and the private state information.
Based on the above embodiment, as a preferred embodiment, the system may further include:
the judging module is used for judging whether the cluster sharing information is compiled completely; if yes, executing a first upgrading module; if not, executing the compiling module.
Based on the above embodiment, as a preferred embodiment, the first upgrade module 200 may include:
the grouping submodule is used for dividing and marking all nodes in the storage cluster according to every two node groups;
and the upgrading submodule is used for upgrading the private state information of each group of corresponding nodes according to the label sequence.
The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. For the system disclosed by the embodiment, the description is relatively simple because the system corresponds to the method disclosed by the embodiment, and the relevant points can be referred to the method part for description.
The storage cluster online upgrade method and system provided by the present application are described in detail above. The principles and embodiments of the present application are explained herein using specific examples, which are provided only to help understand the method and the core idea of the present application. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.
It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Claims (8)
1. A method for storage cluster online upgrade, the method comprising:
compiling cluster sharing information of the nodes in the storage cluster in a dynamic link library form; after compiling, the cluster shared information exists in the form of the dynamic link library, the dynamic link library is relatively independent, is dynamically loaded when private state information runs, and continues to normally work as the dynamic link library when the private state information is upgraded;
updating the private-state information of the node;
after the upgrading of the private-state information corresponding to all the nodes is completed, simultaneously upgrading the cluster shared information of all the nodes;
the cluster sharing information is storage cluster state information shared among all the nodes in the storage cluster; the private state information is state information maintained by the nodes respectively.
2. The method of claim 1, wherein before compiling the cluster sharing information for the nodes in the storage cluster in a dynamically linked library, further comprising:
establishing an upgrade installation package, and uploading the upgrade installation package to a configuration node which interacts with a user in the storage cluster; wherein the upgrade installation package includes the cluster sharing information and the private state information.
3. The method of claim 1, wherein before the upgrading the private-state information of the node, further comprising:
judging whether the cluster sharing information is compiled;
if so, upgrading the private state information of the node;
if not, compiling the cluster sharing information of the nodes in the storage cluster in the form of a dynamic link library again.
4. The method of any of claims 1-3, wherein the upgrading the private-state information of the node comprises:
dividing and marking all nodes in the storage cluster according to every two node groups;
and upgrading the private state information of each group of corresponding nodes according to the label sequence.
5. A storage cluster online upgrade system, the system comprising:
the compiling module is used for compiling the cluster sharing information of the nodes in the storage cluster in a form of a dynamic link library; after compiling, the cluster shared information exists in the form of the dynamic link library, the dynamic link library is relatively independent, is dynamically loaded when private state information runs, and continues to normally work as the dynamic link library when the private state information is upgraded;
a first upgrade module for upgrading the private-state information of the node;
the second upgrading module is used for upgrading the cluster shared information of all the nodes simultaneously after the upgrading of the private state information corresponding to all the nodes is completed;
the cluster sharing information is storage cluster state information shared among all the nodes in the storage cluster; the private state information is state information maintained by the nodes respectively.
6. The system of claim 5, further comprising:
the upgrading preparation module is used for constructing an upgrading installation package and uploading the upgrading installation package to a configuration node which interacts with a user in the storage cluster; wherein the upgrade installation package includes the cluster sharing information and the private state information.
7. The system of claim 5, further comprising:
the judging module is used for judging whether the cluster sharing information is compiled completely; if yes, executing a first upgrading module; if not, the compiling module is executed again.
8. The system of any one of claims 5 to 7, wherein the first upgrade module comprises:
the grouping submodule is used for dividing and marking all nodes in the storage cluster according to every two node groups;
and the upgrading submodule is used for upgrading the private state information of each group of corresponding nodes according to the label sequence.
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| CN114003313B (en) * | 2021-10-31 | 2023-12-22 | 济南浪潮数据技术有限公司 | Cluster management method, system, storage medium and device |
| CN114844799A (en) * | 2022-05-27 | 2022-08-02 | 深信服科技股份有限公司 | Cluster management method and device, host equipment and readable storage medium |
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