CN109857516B - Cluster migration method and device based on container - Google Patents
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Abstract
The application discloses a container-based cluster migration method and device, wherein the method is applied to a server, and the server application comprises a Kafka cluster and/or a zookeeper cluster; the method comprises the following steps: judging the cluster type contained in the current server application; when the cluster types are Kafka cluster and zookeeper cluster, executing the following steps: deploying a new zookeeper node container according to the zookeeper cluster to be migrated; deleting all Kafka node containers in the Kafka cluster to be migrated, and updating a node list of the zookeeper cluster in the new Kafka cluster according to the new zookeeper node container; deploying a new Kafka node container according to the Kafka cluster to be migrated, and migrating data in the Kafka node container in the Kafka cluster to be migrated to the new Kafka node container; the zookeeper cluster is notified that the Kafka cluster is changed. The cluster migration method and device based on the container provided by the embodiment of the application can solve the problem of data loss during cluster migration in the prior art.
Description
Technical Field
The present application relates to the field of computer technologies, and in particular, to a method and an apparatus for cluster migration based on a container.
Background
This section is intended to provide a background or context to the embodiments of the application that are recited in the claims. The description herein is not admitted to be prior art by inclusion in this section.
Kafka is a high throughput distributed publish-subscribe messaging system that handles all action flow data in consumer scale websites, typically in clusters. zookeeper is a distributed application coordination service that is commonly used to solve the distributed consistency problem of the kafka cluster, and also appears in the form of clusters.
The Docker container is a technology of fire heating in recent years, and a developer can be packaged and applied into a portable container and then released onto any popular linux machine, and virtualization can also be achieved. The container is completely used by a sandbox mechanism, can be easily operated in a machine and a data center, and does not depend on any language or framework including a system, so that the Kafka and zookeeper services are often put into operation in the container as an alternative to the implementation of a plurality of service programs in a linux system.
However, when a certain server in the Kafka and zookeeper service clusters fails, serious data loss may be caused, even a situation that networking is impossible occurs, or when a certain server needs to be replaced, cluster migration is needed, however, no cluster migration method for preventing data loss exists at present.
Disclosure of Invention
The embodiment of the application provides a container-based cluster migration method, which can solve the problem of data loss during cluster migration in the prior art.
A container-based cluster migration method, which is applied to a server, wherein the server application comprises a Kafka cluster and/or a zookeeper cluster; the method comprises the following steps:
judging the cluster type contained in the current server application;
when the cluster types are Kafka cluster and zookeeper cluster, executing the following steps:
deploying a new zookeeper node container according to the zookeeper cluster to be migrated;
deleting all Kafka node containers in the Kafka cluster to be migrated, and updating a node list of the zookeeper cluster in the new Kafka cluster according to the new zookeeper node container;
deploying a new Kafka node container according to the Kafka cluster to be migrated, and migrating data in the Kafka node container in the Kafka cluster to be migrated to the new Kafka node container;
the zookeeper cluster is notified that the Kafka cluster is changed.
Further, after notifying the zookeeper cluster that the Kafka cluster is changed, the method further includes:
and deleting the Kafka node container in the Kafka cluster to be migrated.
Further, before the deploying a new Kafka node container according to the Kafka cluster to be migrated, the method further comprises:
and deleting the zookeeper node container and corresponding data in the zookeeper cluster to be migrated.
A container-based cluster migration method, the method being applied to a server, the server application comprising a Kafka cluster and/or a zookeeper cluster; the method comprises the following steps:
judging the cluster type contained in the current server application;
when the cluster type is a zookeeper cluster, executing the following steps:
deploying a new zookeeper node container according to the zookeeper cluster to be migrated;
and deleting the zookeeper node container and corresponding data in the zookeeper cluster to be migrated.
A container-based cluster migration method, which is applied to a server, wherein the server application comprises a Kafka cluster and/or a zookeeper cluster; the method comprises the following steps:
judging the cluster type contained in the current server application;
when the cluster type is a Kafka cluster, the following steps are executed:
deploying a new Kafka node container according to the Kafka cluster to be migrated, and migrating data in the Kafka node container in the Kafka cluster to be migrated to the new Kafka node container;
and deleting the Kafka node container in the Kafka cluster to be migrated.
A container-based cluster migration apparatus, the apparatus being applied in a server, the server application comprising a Kafka cluster and/or a zookeeper cluster; the device comprises: the device comprises a judging unit, a deployment unit, a deleting unit, an updating unit and a notification unit; wherein,
the judging unit is used for judging the cluster type contained in the current server application;
when the cluster type is a Kafka cluster and a zookeeper cluster;
the deployment unit is used for deploying a new zookeeper node container according to the zookeeper cluster to be migrated;
the deleting unit is used for deleting all Kafka node containers in the Kafka cluster to be migrated;
the updating unit is used for updating the node list of the zookeeper cluster in the new Kafka cluster according to the new zookeeper node container;
the deployment unit is further used for deploying a new Kafka node container according to the Kafka cluster to be migrated, and migrating data in the Kafka node container in the Kafka cluster to be migrated to the new Kafka node container;
and the notification unit is used for notifying the zookeeper cluster that the Kafka cluster changes.
Further, the deleting unit is further configured to delete the Kafka node container in the Kafka cluster to be migrated after the notifying unit notifies the zookeeper cluster that the Kafka cluster changes.
Further, the deleting unit is further configured to delete the zookeeper node container and the corresponding data in the zookeeper cluster to be migrated before the deploying unit deploys the new Kafka node container according to the Kafka cluster to be migrated.
A container-based cluster migration apparatus, the apparatus being applied in a server, the server application comprising a Kafka cluster and/or a zookeeper cluster; the device comprises: the device comprises a judging unit, a deployment unit and a deleting unit; wherein,
the judging unit is used for judging the cluster type contained in the current server application;
when the cluster type is a zookeeper cluster,
the deployment unit is used for deploying a new zookeeper node container according to the zookeeper cluster to be migrated;
the deleting unit is used for deleting the zookeeper node container and the corresponding data in the zookeeper cluster to be migrated.
A container-based cluster migration apparatus, the apparatus being applied in a server, the server application comprising a Kafka cluster and/or a zookeeper cluster; the device comprises: the device comprises a judging unit, a deployment unit and a deleting unit; wherein,
the judging unit is used for judging the cluster type contained in the current server application;
when the cluster type is a Kafka cluster,
the deployment unit is used for deploying a new Kafka node container according to the Kafka cluster to be migrated and migrating data in the Kafka node container in the Kafka cluster to be migrated to the new Kafka node container;
the deleting unit is used for deleting the Kafka node container in the Kafka cluster to be migrated.
The cluster migration method and device based on the container provided by the embodiment of the application judge the cluster type contained in the current server application; when the cluster types are Kafka cluster and zookeeper cluster, executing the following steps: deploying a new zookeeper node container according to the zookeeper cluster to be migrated; deleting all Kafka node containers in the Kafka cluster to be migrated, and updating a node list of the zookeeper cluster in the new Kafka cluster according to the new zookeeper node container; deploying a new Kafka node container according to the Kafka cluster to be migrated, and migrating data in the Kafka node container in the Kafka cluster to be migrated to the new Kafka node container; the zookeeper cluster is notified that the Kafka cluster is changed. When the server fails or needs to be replaced, the application clusters and data of the original server can be migrated to the new server according to the characteristics of different clusters, so that the data loss is prevented.
Additional features and advantages of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application. The objectives and other advantages of the application will be realized and attained by the structure particularly pointed out in the written description and claims thereof as well as the appended drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:
fig. 1 is a schematic diagram of an implementation principle of a container-based cluster migration method according to an embodiment of the present application;
FIG. 2 is a schematic diagram of another implementation principle of a container-based cluster migration method according to an embodiment of the present application;
FIG. 3 is a schematic diagram of another embodiment of a container-based cluster migration method according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a container-based cluster migration apparatus according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be clearly and completely described below with reference to specific embodiments of the present application and corresponding drawings. It will be apparent that the described embodiments are only some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Referring to fig. 1, an embodiment of the present application provides a container-based cluster migration method, where the method is applied to a server, and the server application includes a Kafka cluster and/or a zookeeper cluster; the method comprises the following steps:
step 101, judging the cluster type contained in the current server application;
when the cluster types are Kafka cluster and zookeeper cluster, executing the following steps:
step 102, deploying a new zookeeper node container according to a zookeeper cluster to be migrated;
step 103, deleting all Kafka node containers in the Kafka cluster to be migrated, and updating a node list of the zookeeper cluster in the new Kafka cluster according to the new zookeeper node container;
step 104, deploying a new Kafka node container according to the Kafka cluster to be migrated, and migrating data in the Kafka node container in the Kafka cluster to be migrated to the new Kafka node container;
step 105, notify the zookeeper cluster that the Kafka cluster changes.
Further, after step 105, the method further comprises: and deleting the Kafka node container in the Kafka cluster to be migrated.
Before the deploying of the new Kafka node container according to the Kafka cluster to be migrated in step 104, the method further comprises:
and deleting the zookeeper node container and corresponding data in the zookeeper cluster to be migrated.
According to the container-based cluster migration method provided by the embodiment of the application, the Kafka node and the zookeeper node in the Kafka cluster and the zookeeper cluster are operated in the container, so that the simple portability of the cluster can be realized; the Kafka cluster depends on the zookeeper, and when the two parties change, the two parties can be notified; the newly added zookeeper node confirms that data does not need to be migrated after being added into the cluster, and kafka needs to migrate the data, so that the efficient cluster migration can be realized, and the data is ensured not to be lost.
It should be understood that the container-based cluster migration method provided by the embodiment of the application can also be applied to a server only containing a Kafka cluster or a zookeeper cluster; referring specifically to fig. 2, the method includes:
step 201, judging the cluster type contained in the current server application;
when the cluster type is a zookeeper cluster, executing the following steps:
step 202, deploying a new zookeeper node container according to a zookeeper cluster to be migrated;
and step 203, deleting the zookeeper node container and corresponding data in the zookeeper cluster to be migrated.
The container-based cluster migration method provided by the embodiment of the application can be applied to a server only containing a Kafka cluster or a zookeeper cluster; referring specifically to fig. 3, the method includes:
step 301, judging the cluster type contained in the current server application;
when the cluster type is a Kafka cluster, the following steps are executed:
step 302, deploying a new Kafka node container according to the Kafka cluster to be migrated, and migrating data in the Kafka node container in the Kafka cluster to be migrated to the new Kafka node container;
step 303, deleting the Kafka node container in the Kafka cluster to be migrated.
Based on the same inventive concept, the embodiment of the application also provides a cluster migration device based on a container, and because the principle of the device for solving the problem is similar to that of the cluster migration method based on the container, the implementation of the device can refer to the implementation of the method, and the repetition is omitted.
Fig. 4 is a schematic structural diagram of a container-based cluster migration apparatus according to an embodiment of the present application, where the apparatus is applied to a server, and the server application includes a Kafka cluster and/or a zookeeper cluster; the apparatus may include: a judging unit 41, a deployment unit 42, a deletion unit 43, an updating unit 44, a notification unit 45; wherein,
the judging unit 41 is configured to judge a cluster type included in the current server application;
when the cluster type is a Kafka cluster and a zookeeper cluster;
the deployment unit 42 is configured to deploy a new zookeeper node container according to the zookeeper cluster to be migrated;
the deleting unit 43 is configured to delete all Kafka node containers in the Kafka cluster to be migrated;
the updating unit 44 is configured to update a node list of a zookeeper cluster in the new Kafka cluster according to the new zookeeper node container;
the deployment unit 42 is further configured to deploy a new Kafka node container according to the Kafka cluster to be migrated, and migrate data in the Kafka node container in the Kafka cluster to be migrated to the new Kafka node container;
the notifying unit 45 is configured to notify the zookeeper cluster that the Kafka cluster changes.
The deleting unit 43 is further configured to delete the Kafka node container in the Kafka cluster to be migrated after the notifying unit notifies the zookeeper cluster that the Kafka cluster is changed.
The deleting unit 43 is further configured to delete the zookeeper node container and the corresponding data in the zookeeper cluster to be migrated before the deploying unit 42 deploys the new Kafka node container according to the Kafka cluster to be migrated.
The embodiment of the application also provides a cluster migration device based on the container, which is applied to a server, wherein the server application comprises a Kafka cluster and/or a zookeeper cluster; the device comprises: the device comprises a judging unit, a deployment unit and a deleting unit; wherein,
the judging unit is used for judging the cluster type contained in the current server application;
when the cluster type is a zookeeper cluster,
the deployment unit is used for deploying a new zookeeper node container according to the zookeeper cluster to be migrated;
the deleting unit is used for deleting the zookeeper node container and the corresponding data in the zookeeper cluster to be migrated.
The embodiment of the application also provides a cluster migration device based on the container, which is applied to a server, wherein the server application comprises a Kafka cluster and/or a zookeeper cluster; the device comprises: the device comprises a judging unit, a deployment unit and a deleting unit; wherein,
the judging unit is used for judging the cluster type contained in the current server application;
when the cluster type is a Kafka cluster,
the deployment unit is used for deploying a new Kafka node container according to the Kafka cluster to be migrated and migrating data in the Kafka node container in the Kafka cluster to be migrated to the new Kafka node container;
the deleting unit is used for deleting the Kafka node container in the Kafka cluster to be migrated.
For convenience of description, the above parts are described as being functionally divided into modules (or units) respectively. Of course, the functions of each module (or unit) may be implemented in the same piece or pieces of software or hardware when implementing the present application.
Having described the container-based cluster migration method and apparatus of an exemplary embodiment of the present application, next, a computing apparatus according to another exemplary embodiment of the present application is described.
Those skilled in the art will appreciate that the various aspects of the application may be implemented as a system, method, or program product. Accordingly, aspects of the application may be embodied in the following forms, namely: an entirely hardware embodiment, an entirely software embodiment (including firmware, micro-code, etc.) or an embodiment combining hardware and software aspects may be referred to herein as a "circuit," module "or" system.
In some possible embodiments, a computing device according to the application may comprise at least one processing unit, and at least one memory unit. Wherein the storage unit stores program code which, when executed by the processing unit, causes the processing unit to perform the steps in the container-based cluster migration method according to various exemplary embodiments of the application described in the present specification.
It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
In one typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.
The memory may include volatile memory in a computer-readable medium, random Access Memory (RAM) and/or nonvolatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). Memory is an example of computer-readable media.
Computer readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of storage media for a computer include, but are not limited to, phase change memory (PRAM), static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), read Only Memory (ROM), electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium, which can be used to store information that can be accessed by a computing device. Computer-readable media, as defined herein, does not include transitory computer-readable media (transmission media), such as modulated data signals and carrier waves.
It should also be noted that 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 one … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises the element.
It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The foregoing is merely exemplary of the present application and is not intended to limit the present application. Various modifications and variations of the present application will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the application are to be included in the scope of the claims of the present application.
Claims (6)
1. A container-based cluster migration method, which is characterized in that the method is applied to a server, and the server application comprises a Kafka cluster and/or a zookeeper cluster; the method comprises the following steps:
judging the cluster type contained in the current server application;
when the cluster types are Kafka cluster and zookeeper cluster, executing the following steps:
deploying a new zookeeper node container according to the zookeeper cluster to be migrated;
deleting all Kafka node containers in the Kafka cluster to be migrated, and updating a node list of the zookeeper cluster in the Kafka cluster according to the new zookeeper node container;
deploying a new Kafka node container according to the Kafka cluster to be migrated, and migrating data in the Kafka node container in the Kafka cluster to be migrated to the new Kafka node container;
the zookeeper cluster is notified that the Kafka cluster is changed.
2. The method of claim 1, wherein after the notifying the zookeeper cluster that the Kafka cluster has changed, the method further comprises:
and deleting the Kafka node container in the Kafka cluster to be migrated.
3. The method of claim 1 or 2, wherein prior to the deploying of the new Kafka node container in accordance with the Kafka cluster to be migrated, the method further comprises:
and deleting the zookeeper node container and corresponding data in the zookeeper cluster to be migrated.
4. A container-based cluster migration apparatus, wherein the apparatus is applied to a server, and the server application comprises a Kafka cluster and/or a zookeeper cluster; the device comprises: the device comprises a judging unit, a deployment unit, a deleting unit, an updating unit and a notification unit; wherein,
the judging unit is used for judging the cluster type contained in the current server application;
when the cluster type is a Kafka cluster and a zookeeper cluster;
the deployment unit is used for deploying a new zookeeper node container according to the zookeeper cluster to be migrated;
the deleting unit is used for deleting all Kafka node containers in the Kafka cluster to be migrated;
the updating unit is used for updating the node list of the zookeeper cluster in the Kafka cluster according to the new zookeeper node container;
the deployment unit is further used for deploying a new Kafka node container according to the Kafka cluster to be migrated, and migrating data in the Kafka node container in the Kafka cluster to be migrated to the new Kafka node container;
and the notification unit is used for notifying the zookeeper cluster that the Kafka cluster changes.
5. The apparatus of claim 4, wherein the deleting unit is further configured to delete the Kafka node container in the Kafka cluster to be migrated after the notifying unit notifies the zookeeper cluster that the Kafka cluster has changed.
6. The apparatus of claim 5, wherein the deleting unit is further configured to delete a zookeeper node container and corresponding data in a zookeeper cluster to be migrated before the deploying unit deploys a new Kafka node container according to the Kafka cluster to be migrated.
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| CN110389766B (en) * | 2019-06-21 | 2022-12-27 | 深圳市汇川技术股份有限公司 | HBase container cluster deployment method, system, equipment and computer readable storage medium |
| CN112506606A (en) * | 2020-11-23 | 2021-03-16 | 北京达佳互联信息技术有限公司 | Migration method, device, equipment and medium for containers in cluster |
| CN112445574B (en) * | 2020-11-27 | 2024-01-26 | 中国工商银行股份有限公司 | Application container multi-cluster migration method and device |
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