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https://issues.apache.org/jira/browse/FLINK-10334?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16726535#comment-16726535
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TisonKun commented on FLINK-10334:
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Hi [~till.rohrmann], I am drafting an overall design of rethinking our
ZooKeeper based HaService. Here I meet the same problem. We want to separate
the communicate with zk and that with filesystem.
Currently we melt {{RetrievableStateStorageHelper}} in
{{ZooKeeperStateHandleStore}} which couples a write on zk with a write on
filesystem. IMHO they should stay at the same level inside
{{SubmittedJobGraphStore}}. That is, a {{SubmittedJobGraphStore}} has a
{{RetrievableStateStorageHelper}} and a {{ZKStore}}. We store the state into
the filesystem, get the handle and store the handle into zk. These all happen
at the {{SubmittedJobGraphStore}} level. What do you think?
> Move RetrievableStateStorageHelper out of ZooKeeperStateHandleStore
> -------------------------------------------------------------------
>
> Key: FLINK-10334
> URL: https://issues.apache.org/jira/browse/FLINK-10334
> Project: Flink
> Issue Type: Sub-task
> Components: Distributed Coordination
> Affects Versions: 1.5.3, 1.6.0, 1.7.0
> Reporter: Till Rohrmann
> Assignee: vinoyang
> Priority: Major
> Fix For: 1.8.0
>
>
> Move the {{RetrievableStateStorageHelper}} out of the
> {{ZooKeeperStateHandleStore}} in order to better separate concerns.
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