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https://issues.apache.org/jira/browse/PHOENIX-4993?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Vincent Poon reopened PHOENIX-4993:
-----------------------------------

> Data table region should not close RS level shared/cached connections like 
> IndexWriter, RecoveryIndexWriter
> -----------------------------------------------------------------------------------------------------------
>
>                 Key: PHOENIX-4993
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-4993
>             Project: Phoenix
>          Issue Type: Bug
>    Affects Versions: 4.14.0
>            Reporter: Kiran Kumar Maturi
>            Assignee: Kiran Kumar Maturi
>            Priority: Major
>             Fix For: 4.15.0, 5.1.0
>
>         Attachments: PHOENIX-4993-4.x-HBase-1.3.01.patch, 
> PHOENIX-4993-4.x-HBase-1.3.02.patch, PHOENIX-4993-4.x-HBase-1.3.03.patch, 
> PHOENIX-4993-4.x-HBase-1.3.04.patch, PHOENIX-4993-4.x-HBase-1.3.05.patch, 
> PHOENIX-4993-master.01.patch, PHOENIX-4993-master.02.patch, 
> PHOENIX-4993-master.addendum-1.patch
>
>
> Issue is related to Region Server being killed when one region is closing and 
> another region is trying to write index updates.
> When the data table region closes it will close region server level 
> cached/shared connections and it could interrupt other region 
> index/index-state update.
> -- Region1: Closing
> {code:java}
> TrackingParallellWriterIndexCommitter#stop() {
> this.retryingFactory.shutdown();
> this.noRetriesFactory.shutdown();
> }{code}
> closes the cached connections calling 
> CoprocessorHConnectionTableFactory#shutdown() in ServerUtil.java
>  
> --Region2: Writing index updates
> Index updates fail as connections are closed, which leads to 
> RejectedExecutionException/Connection being null. This triggers 
> PhoenixIndexFailurePolicy#handleFailureWithExceptions that tries to get the 
> the syscat table using the cached connections. Here it will not be able to 
> reach to SYSCAT , so we will trigger KillServreFailurePolicy.
> CoprocessorHConnectionTableFactory#getTable()
>  
>  
> {code:java}
> if (connection == null || connection.isClosed()) {
> throw new IllegalArgumentException("Connection is null or closed.");
> }{code}
>  
>  



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