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Posted to issues@flink.apache.org by "ASF GitHub Bot (JIRA)" <ji...@apache.org> on 2019/06/05 20:17:00 UTC
[jira] [Updated] (FLINK-12751) Create file based HA support
[ https://issues.apache.org/jira/browse/FLINK-12751?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
ASF GitHub Bot updated FLINK-12751:
-----------------------------------
Labels: features pull-request-available (was: features)
> Create file based HA support
> ----------------------------
>
> Key: FLINK-12751
> URL: https://issues.apache.org/jira/browse/FLINK-12751
> Project: Flink
> Issue Type: Improvement
> Components: FileSystems
> Affects Versions: 1.8.0, 1.9.0, 2.0.0
> Environment: Flink on k8 and Mini cluster
> Reporter: Boris Lublinsky
> Priority: Major
> Labels: features, pull-request-available
> Original Estimate: 168h
> Remaining Estimate: 168h
>
> In the current Flink implementation, HA support can be implemented either using Zookeeper or Custom Factory class.
> Add HA implementation based on PVC. The idea behind this implementation
> is as follows:
> * Because implementation assumes a single instance of Job manager (Job manager selection and restarts are done by K8 Deployment of 1)
> URL management is done using StandaloneHaServices implementation (in the case of cluster) and EmbeddedHaServices implementation (in the case of mini cluster)
> * For management of the submitted Job Graphs, checkpoint counter and completed checkpoint an implementation is leveraging the following file system layout
> ````
> ha -----> root of the HA data
> checkpointcounter -----> checkpoint counter folder
> <job ID> -----> job id folder
> <counter file> -----> counter file
> <another job ID> -----> another job id folder
> ...........
> completedCheckpoint -----> completed checkpoint folder
> <job ID> -----> job id folder
> <checkpoint file> -----> checkpoint file
> <another checkpoint file> -----> checkpoint file
> ...........
> <another job ID> -----> another job id folder
> ...........
> submittedJobGraph -----> submitted graph folder
> <job ID> -----> job id folder
> <graph file> -----> graph file
> <another job ID> -----> another job id folder
> ...........
> ````
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