CN113504951B - Global iSCSI target configuration method and device, computing equipment and storage medium - Google Patents
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Abstract
The invention discloses a global iSCSI target device configuration method and a device, a computing device and a storage medium, wherein the global iSCSI target device configuration method is applied to a distributed cluster comprising a plurality of storage nodes and comprises the following steps: at least one storage node in the cluster receives user iSCSI target data to configure zookeeper global data; at least one storage node synchronizes zookeeper global data to other storage nodes in the cluster; the storage nodes in the cluster respectively judge whether the zookeeper global data are configuration and management data of the local nodes; if yes, the storage nodes of the cluster execute corresponding configuration and management data. In this way, the cluster does not need to independently erect the main target device management node and the standby target device management node, but utilizes the existing storage nodes in the cluster to provide the management and configuration of the iSCSI target device, fully utilizes the computing capacity and the system resources of the storage nodes, and reduces the cost of distributed storage.
Description
Technical Field
The invention belongs to the technical field of data storage, and particularly relates to a global iSCSI target configuration method and device, and computing equipment and a machine-readable storage medium applying the global iSCSI target configuration method.
Background
In the current application, higher requirements are put forward on the capacity and the continuous use time of data storage, and particularly for small and medium users, the larger the capacity of the data storage is, the larger the generated social benefit and social value are. Therefore, the zookeeper-based iSCSI distributed storage cluster system is generated, and the characteristics of accurate, extended and stable synchronization of the zookeeper global configuration are utilized, so that the demands of the market on a storage system with large capacity, low cost and simple deployment are met. However, how to configure and manage a huge iSCSI target to implement ultra-large storage is a problem.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person of ordinary skill in the art.
Disclosure of Invention
The invention aims to provide a global iSCSI target configuration method which is used for solving the problem of how to configure and manage an iSCSI target to realize ultra-large storage.
To achieve the above object, the present invention provides a global iSCSI target configuration method, applied to a distributed cluster including a plurality of storage nodes, the method comprising:
at least one storage node in the cluster receives user iSCSI target data to configure zookeeper global data;
the at least one storage node synchronizes the zookeeper global data to other storage nodes in the cluster;
the storage nodes in the cluster respectively judge whether the zookeeper global data are configuration and management data of the local nodes; if so, the first and second data are not identical,
the storage nodes of the cluster execute corresponding configuration and management data.
In one or more embodiments of the invention, the method further comprises:
and when the zookeeper global data is not the configuration and management data of the local node, the storage nodes in the cluster continue to execute sleep.
In one or more embodiments of the invention, the method further comprises:
after the at least one storage node synchronizes the zookeeper global data to other storage nodes in the cluster, the storage nodes in the cluster send event information through the zookeeper, wherein the event information indicates that the storage nodes in the cluster complete the synchronization of the zookeeper global data.
In one or more embodiments of the present invention, the storage nodes of the cluster execute corresponding configuration and management data, specifically including:
and the storage nodes of the cluster call a target data configuration API function to configure the local nodes, and the configuration result is sent to a zookeeper command operation global state area.
The invention also provides a global iSCSI target device, which is applied to a distributed cluster comprising a plurality of storage nodes, and comprises the following components:
the transmission module is used for at least one storage node in the cluster to receive the user iSCSI target data so as to configure zookeeper global data;
a synchronization module, configured to synchronize the zookeeper global data to other storage nodes in the cluster by the at least one storage node;
the judging module is used for respectively judging whether the zookeeper global data are configuration and management data of the local node by the storage nodes in the cluster;
and the execution module is used for executing corresponding configuration and management data by the storage nodes of the cluster when the zookeeper global data are the configuration and management data of the local nodes.
In one or more embodiments of the present invention, the executing module is further configured to, when the zookeeper global data is not configuration and management data of a local node, allow the storage nodes in the cluster to continue to execute sleep.
In one or more embodiments of the present invention, the method further includes an information sending module, configured to send event information to a storage node in the cluster through a zookeeper after the at least one storage node synchronizes the zookeeper global data to other storage nodes in the cluster, where the event information indicates that the zookeeper in the cluster completes synchronization of the zookeeper global data.
In one or more embodiments of the present invention, the execution module is specifically configured to: and the storage nodes of the cluster call a target data configuration API function to configure the local nodes, and the configuration result is sent to a zookeeper command operation global state area.
The present invention also provides a computing device comprising:
at least one processor; and
a memory storing instructions that, when executed by the at least one processor, cause the at least one processor to perform a global iSCSI target configuration method as described above.
The present invention also provides a machine-readable storage medium storing executable instructions that, when executed, cause the machine to perform a global iSCSI target configuration method as described above.
Compared with the prior art, according to the global iSCSI target configuration method, the management nodes of the main target and the standby target can not be independently erected, the existing storage nodes in the cluster are utilized to provide iSCSI target management and configuration, the computing capacity and system resources of the storage nodes are fully utilized, and the cost of distributed storage is reduced.
Drawings
FIG. 1 is an architecture diagram of a cluster system of single-node single iSCSI targets;
FIG. 2 is an architecture diagram of a cluster system of multiple management nodes and multiple backup iSCSI targets;
FIG. 3 is a flow chart of a global iSCSI target configuration method in accordance with an embodiment of the invention;
FIG. 4 is a diagram of a cluster system architecture employing a global iSCSI target configuration method in accordance with an embodiment of the invention;
FIG. 5 is a schematic diagram of a global iSCSI target configuration method, in accordance with an embodiment of the invention;
FIG. 6 is a block diagram of a global iSCSI target configuration device, in accordance with an embodiment of the invention;
FIG. 7 is a hardware architecture diagram of a computing device according to an embodiment of the invention.
Detailed Description
The present invention will be described in detail below with reference to the embodiments shown in the drawings. The embodiments are not intended to limit the invention, but structural, methodological, or functional modifications of the invention from those skilled in the art are included within the scope of the invention.
The following describes possible configuration methods for an iSCSI target.
Referring to FIG. 1, first is a cluster system of single-node single iSCSI target. Each storage node in the cluster is respectively configured with a target 1, a target 2, a target … … and a target n, and each target 1, target 2, … … and target n respectively correspond to the respective storage back end. In the cluster system, the configuration management data of the iSCSI storage back end and the iSCSI are placed on the same node, and even if multiple copies of the node exist, the node cannot be recovered when downtime or abnormality occurs; and, installing the same type of configuration and management data on storage nodes, respectively, is easily dispersed and not easily managed, and cannot provide flexible storage capacity service products because each storage node is of a capacity within a fixed range.
Referring to FIG. 2, next is a cluster system of multiple management nodes and multiple backup iSCSI targets. The iSCSI configuration management data are respectively configured on different management or calculation nodes, one of the iSCSI configuration management data is used as a main target management node, and the other iSCSI configuration management data are used as backup target management nodes, so that the problem of single node recovery is solved.
Referring to FIG. 3, one embodiment of a global iSCSI target configuration method of the present invention is described. In this embodiment, the method comprises the steps of:
s11, at least one storage node in the cluster receives the user iSCSI target data to configure zookeeper global data.
With reference to fig. 4 and fig. 5 in combination, the global iSCSI target configuration method provided in this embodiment may be applied to a distributed cluster, where a typical distributed cluster includes a plurality of storage nodes that may communicate with each other.
And installing and running a zookeeper process on each storage node to provide services of global data. The zookeeper is a distributed service for coordination, and the distributed clusters can also realize functions of unified naming service, configuration management, distributed lock, cluster management and the like.
The user can access a floating IP randomly configured on any storage node and log on the storage node, so that the configuration of the iSCSI target data is performed. Specifically, the user may perform configuration of the iSCSI target data herein through a command line API that processes the user's data and then configures the zookeeper global data.
S12, the at least one storage node synchronizes the zookeeper global data to other storage nodes in the cluster.
Based on the characteristics of the zookeeper, after the zookeeper on any storage node obtains the zookeeper global data, the zookeeper global data is synchronized to all other storage nodes, so that the zookeeper global data is kept consistent in all the storage nodes.
In one embodiment, after at least one storage node synchronizes the zookeeper global data to other storage nodes in the cluster, the storage nodes in the cluster send event information through the zookeeper, where the event information indicates that the zookeeper of the storage node in the cluster completes the synchronization of the zookeeper global data.
Here, the storage nodes in the cluster may be event routines that notify event information to the global data mounted thereon through a zookeeper. If one or more storage nodes in the cluster do not complete the synchronization of the zookeeper global data, all the storage nodes in the cluster may not send the event information and wait until the internal storage nodes complete the synchronization of the zookeeper global data.
S13, the storage nodes in the cluster respectively judge whether the zookeeper global data are configuration and management data of the local nodes.
Specifically, each storage node may view the zookeeper global data herein through the event routine described above, and determine whether it is configuration and management data of the local node.
S14, the storage nodes of the cluster execute corresponding configuration and management data.
If the storage node in the cluster judges that the zookeeper global data is local configuration and management data, the storage node can call a target data configuration API function to configure the local node, and sends a configuration result to the zookeeper command operation global state area.
Before sending the configuration result to the zookeeper command operation global state region, each storage node can judge whether configuration and management data are executed by judging whether the zookeeper node is changed. If the zookeeper node changes, the configuration and management data is considered to have been executed; if the zookeeper node has not changed, the configuration and management data is deemed not to be executed and the configuration and management data continues to be executed by the storage node.
If a storage node in the cluster determines that the zookeeper global data is not local configuration and management data, it may continue to perform sleep. Thus, in the configuration method of the global iSCSI target device, the uniformity of global configuration and management data of distributed iSCSI storage is realized, and the high availability, expansibility and robustness of the configuration and management data are improved; and the unified configuration and management data can be distributed according to each specific storage node, so that the load of the distributed storage cluster is balanced.
The command line API can check the global state area of the zookeeper command operation so as to confirm whether the execution of the current configuration and management data is successful or not, and return a confirmation result to the user; meanwhile, the command line API clears the zookeeper command operation global state area to wait for the next state writing.
In such an embodiment, instead of separately setting up the master and slave target management nodes, the existing storage nodes in the cluster may be used to provide iSCSI target management and configuration, so that the computing power and system resources of the storage nodes are fully utilized, and the cost of distributed storage is reduced.
Referring to FIG. 6, one embodiment of a global iSCSI target configuration device of the invention is described. In this embodiment, the global iSCSI target configuration apparatus includes a transmission module 201, a synchronization module 202, a determination module 203, and an execution module 204.
With reference to fig. 4 and fig. 5 in combination, the global iSCSI target configuration apparatus may be applied to a distributed cluster, where in a specific distributed cluster architecture, the global iSCSI target configuration apparatus generally includes a plurality of storage nodes, where zookeeper processes are respectively installed and run on the storage nodes to provide services of global data. The transmission module 201, the synchronization module 202, the judgment module 203, and the execution module 204 may be configured on each storage node in the cluster, or may be one or more of the transmission module 201, the synchronization module 202, the judgment module 203, and the execution module 204 may be shared by each storage node in the cluster.
The transmission module 201 is configured to receive user iSCSI target data for configuring zookeeper global data by at least one storage node in the cluster. Specifically, the user may access a floating IP randomly configured on any storage node and log onto the storage node, so as to perform configuration of iSCSI target data, and the transmission module 201 further receives the iSCSI target data therein.
The synchronization module 202 is configured to synchronize the zookeeper global data by the at least one storage node to other storage nodes in the cluster. In this embodiment, the global iSCSI target configuration apparatus further includes an information sending module 205, configured to, after the at least one storage node synchronizes the zookeeper global data to other storage nodes in the cluster, send event information by the storage nodes in the cluster through the zookeeper, where the event information indicates that the zookeeper of the storage nodes in the cluster completes the synchronization of the zookeeper global data.
Here, the storage nodes in the cluster may be event routines that notify event information to the global data mounted thereon through a zookeeper. If one or more storage nodes in the cluster do not complete the synchronization of the zookeeper global data, all the storage nodes in the cluster may not send the event information and wait until the internal storage nodes complete the synchronization of the zookeeper global data.
The judging module 203 is configured to respectively judge whether the zookeeper global data is configuration and management data of the local node by using the storage nodes in the cluster. Specifically, each storage node may view the zookeeper global data herein through the event routine described above, and determine whether it is configuration and management data of the local node.
The execution module 204 is configured to, when the zookeeper global data is configuration and management data of the local node, execute the corresponding configuration and management data by the storage nodes of the cluster. If the storage node in the cluster judges that the zookeeper global data is local configuration and management data, the storage node can call a target data configuration API function to configure the local node, and sends a configuration result to the zookeeper command operation global state area.
Before sending the configuration result to the zookeeper command operation global state region, each storage node can judge whether configuration and management data are executed by judging whether the zookeeper node is changed. If the zookeeper node changes, the configuration and management data is considered to have been executed; if the zookeeper node has not changed, the configuration and management data is deemed not to be executed and the configuration and management data continues to be executed by the storage node.
The execution module 204 is further configured to enable the storage nodes in the cluster to continue to perform sleep when the zookeeper global data is not configuration and management data of the local node.
The global iSCSI target configuration method according to embodiments of the present specification is described above with reference to fig. 3 through 5. The details mentioned in the description of the method embodiments above apply equally to the global iSCSI target configuration device of the present specification embodiments. The global iSCSI target configuration means above may be implemented in hardware, or in software, or a combination of hardware and software.
Fig. 7 shows a hardware configuration diagram of a computing device according to an embodiment of the present specification. As shown in fig. 5, computing device 30 may include at least one processor 301, memory 302 (e.g., non-volatile memory), memory 303, and communication interface 304, and at least one processor 301, memory 302, memory 303, and communication interface 304 are connected together via bus 305. The at least one processor 301 executes at least one computer readable instruction stored or encoded in memory 302.
It should be appreciated that the computer-executable instructions stored in memory 302, when executed, cause at least one processor 301 to perform the various operations and functions described above in connection with fig. 1-3 in various embodiments of the present specification.
In embodiments of the present description, computing device 30 may include, but is not limited to: personal computers, server computers, workstations, desktop computers, laptop computers, notebook computers, mobile computing devices, smart phones, tablet computers, cellular phones, personal Digital Assistants (PDAs), handsets, messaging devices, wearable computing devices, consumer electronic devices, and the like.
According to one embodiment, a program product, such as a machine-readable medium, is provided. The machine-readable medium may have instructions (i.e., elements described above implemented in software) that, when executed by a machine, cause the machine to perform the various operations and functions described above in connection with fig. 1-3 in various embodiments of the specification. In particular, a system or apparatus provided with a readable storage medium having stored thereon software program code implementing the functions of any of the above embodiments may be provided, and a computer or processor of the system or apparatus may be caused to read out and execute instructions stored in the readable storage medium.
In this case, the program code itself read from the readable medium may implement the functions of any of the above embodiments, and thus the machine-readable code and the readable storage medium storing the machine-readable code form part of the present specification.
Examples of readable storage media include floppy disks, hard disks, magneto-optical disks, optical disks (e.g., CD-ROMs, CD-R, CD-RWs, DVD-ROMs, DVD-RAMs, DVD-RWs), magnetic tapes, nonvolatile memory cards, and ROMs. Alternatively, the program code may be downloaded from a server computer or cloud by a communications network.
It will be appreciated by those skilled in the art that various changes and modifications can be made to the embodiments disclosed above without departing from the spirit of the invention. Accordingly, the scope of protection of this specification should be limited by the attached claims.
It should be noted that not all the steps and units in the above flowcharts and the system configuration diagrams are necessary, and some steps or units may be omitted according to actual needs. The order of execution of the steps is not fixed and may be determined as desired. The apparatus structures described in the above embodiments may be physical structures or logical structures, that is, some units may be implemented by the same physical client, or some units may be implemented by multiple physical clients, or may be implemented jointly by some components in multiple independent devices.
In the above embodiments, the hardware units or modules may be implemented mechanically or electrically. For example, a hardware unit, module or processor may include permanently dedicated circuitry or logic (e.g., a dedicated processor, FPGA or ASIC) to perform the corresponding operations. The hardware unit or processor may also include programmable logic or circuitry (e.g., a general purpose processor or other programmable processor) that may be temporarily configured by software to perform the corresponding operations. The particular implementation (mechanical, or dedicated permanent, or temporarily set) may be determined based on cost and time considerations.
The detailed description set forth above in connection with the appended drawings describes exemplary embodiments, but does not represent all embodiments that may be implemented or fall within the scope of the claims. The term "exemplary" used throughout this specification means "serving as an example, instance, or illustration," and does not mean "preferred" or "advantageous over other embodiments. The detailed description includes specific details for the purpose of providing an understanding of the described technology. However, the techniques may be practiced without these specific details. In some instances, well-known structures and devices are shown in block diagram form in order to avoid obscuring the concepts of the described embodiments.
The previous description of the disclosure is provided to enable any person skilled in the art to make or use the disclosure. Various modifications to the disclosure will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other variations without departing from the scope of the disclosure. Thus, the disclosure is not limited to the examples and designs described herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. A global iSCSI target configuration method applied to a distributed cluster including a plurality of storage nodes, the method comprising:
at least one storage node in the cluster receives user iSCSI target data to configure zookeeper global data;
the at least one storage node synchronizes the zookeeper global data to other storage nodes in the cluster;
the storage nodes in the cluster respectively judge whether the zookeeper global data are configuration and management data of the local nodes; if so, the first and second data are not identical,
the storage nodes of the cluster execute corresponding configuration and management data;
the storage nodes of the cluster execute corresponding configuration and management data, and specifically include:
and the storage nodes of the cluster call a target data configuration API function to configure the local nodes, and the configuration result is sent to a zookeeper command operation global state area.
2. A global iSCSI target configuration method as in claim 1, wherein said method further comprises:
and when the zookeeper global data is not the configuration and management data of the local node, the storage nodes in the cluster continue to execute sleep.
3. A global iSCSI target configuration method as in claim 1, wherein said method further comprises:
after the at least one storage node synchronizes the zookeeper global data to other storage nodes in the cluster, the storage nodes in the cluster send event information through the zookeeper, wherein the event information indicates that the storage nodes in the cluster complete the synchronization of the zookeeper global data.
4. A global iSCSI target configuration apparatus for use in a distributed cluster comprising a plurality of storage nodes, comprising:
the transmission module is used for at least one storage node in the cluster to receive the user iSCSI target data so as to configure zookeeper global data;
a synchronization module, configured to synchronize the zookeeper global data to other storage nodes in the cluster by the at least one storage node;
the judging module is used for respectively judging whether the zookeeper global data are configuration and management data of the local node by the storage nodes in the cluster;
the executing module is used for enabling the storage nodes of the cluster to execute corresponding configuration and management data when the zookeeper global data are the configuration and management data of the local nodes;
the execution module is specifically configured to: and the storage nodes of the cluster call a target data configuration API function to configure the local nodes, and the configuration result is sent to a zookeeper command operation global state area.
5. A global iSCSI target configuration device as in claim 4, wherein said execution module is further to provide for a storage node in said cluster to continue to perform sleep when said zookeeper global data is not configuration and management data of a local node.
6. A global iSCSI target configuration apparatus as in claim 4, further comprising an information sending module configured to send event information to a storage node in the cluster through a zookeeper after the at least one storage node synchronizes the zookeeper global data to other storage nodes in the cluster, wherein the event information indicates that the zookeeper of the storage node in the cluster completes the synchronization of the zookeeper global data.
7. A computing device, comprising:
at least one processor; and
a memory storing instructions that, when executed by the at least one processor, cause the at least one processor to perform a global iSCSI target configuration method as claimed in any one of claims 1 to 3.
8. A machine readable storage medium storing executable instructions that when executed cause a machine to perform a global iSCSI target configuration method as claimed in any one of claims 1 to 3.
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| 基于iSCSI存储集群的设计与实现;王施人;陕振;张淑萍;毛宇光;;计算机工程与设计(第11期);全文 * |
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