[infinispan-issues] [JBoss JIRA] (ISPN-1658) RPCs invoked with SYNCRONOUS_IGNORE_LEAVERS taking too long if one of the targets had already left

[Dan Berindei (Reopened) (JIRA)]

     [ https://issues.jboss.org/browse/ISPN-1658?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Dan Berindei reopened ISPN-1658:
--------------------------------



My fix caused another problem with cache view installation.

If a node has already left before the coordinator sends the PREPARE_VIEW command, the RPC will fail without sending anything to any nodes.

If the coordinator then sends an APPLY_STATE command to another node, that command will block waiting for the state transfer to start, but the coordinator won't roll back the cache view installation and start a new one until the APPLY_STATE RPC times out.

                
> RPCs invoked with SYNCRONOUS_IGNORE_LEAVERS taking too long if one of the targets had already left
> --------------------------------------------------------------------------------------------------
>
>                 Key: ISPN-1658
>                 URL: https://issues.jboss.org/browse/ISPN-1658
>             Project: Infinispan
>          Issue Type: Bug
>          Components: RPC
>    Affects Versions: 5.1.0.CR2
>            Reporter: Dan Berindei
>            Assignee: Dan Berindei
>             Fix For: 5.1.0.CR3
>
>         Attachments: mlnt.txt
>
>
> We were waiting for responses from the leavers as well, and then we were ignoring the timeout. Instead we should remove the leavers from the targets list before sending the command.
> `SYNCHRONOUS_IGNORE_LEAVERS` is used for `CommitCommand`s and `CacheViewControlCommand{COMMIT_VIEW}`s, if this happens it will block the cache view installation (and so the entire cluster) until the RPC timeout expires.

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