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https://issues.apache.org/jira/browse/RATIS-661?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16921628#comment-16921628
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Tsz Wo Nicholas Sze commented on RATIS-661:
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> I mean an api which can tell that the group is in Closing or Closed state. ...
We should add such information to getGroupInfos. We may as well change it to
return a reply instead of GroupMismatchException when the group does not exist.
> Add call in state machine to handle group removal
> -------------------------------------------------
>
> Key: RATIS-661
> URL: https://issues.apache.org/jira/browse/RATIS-661
> Project: Ratis
> Issue Type: New Feature
> Components: API
> Reporter: Lokesh Jain
> Assignee: Lokesh Jain
> Priority: Major
> Fix For: 0.4.0
>
> Attachments: RATIS-661.001.patch, RATIS-661.002.patch,
> RATIS-661.003.patch, RATIS-661.004.patch, RATIS-661.005.patch
>
>
> Currently during RaftServerProxy#groupRemoveAsync there is no way for
> stateMachine to know that the RaftGroup will be removed. This Jira aims to
> add a call in the stateMachine to handle group removal.
> It also changes the logic of groupRemoval api to remove the RaftServerImpl
> from the RaftServerProxy#impls map after the shutdown is complete. This is
> required to synchronize the removal with the corresponding api of
> RaftServer#getGroupIds. RaftServer#getGroupIds uses the RaftServerProxy#impls
> map to get the groupIds.
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