[jira] [Updated] (HBASE-29265) Operation timeouts can create a pathological feedback loop with multigets

["Hernan Gelaf-Romer (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HBASE-29265?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Hernan Gelaf-Romer updated HBASE-29265:
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    Summary: Operation timeouts can create a pathological feedback loop with multigets  (was: RetriesExhaustedWithDetailsException can create a pathological feedback loop with multigets)

> Operation timeouts can create a pathological feedback loop with multigets
> -------------------------------------------------------------------------
>
>                 Key: HBASE-29265
>                 URL: https://issues.apache.org/jira/browse/HBASE-29265
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Hernan Gelaf-Romer
>            Assignee: Hernan Gelaf-Romer
>            Priority: Major
>
> Similar to https://issues.apache.org/jira/browse/HBASE-27487
>  
> RetriesExhaustedWithDetailsException currently obscures that the underlying exception(s) may be OperationTimeoutExceededException. Because of this, we can still run into situations where slow request can trigger a flood of meta cache clearing exceptions, and hotspot the meta table. 
>  
> We should update our exception handling logic to special case these exceptions, and explicitly check to see if the underlying root cause for the request failures was due to an operation timeout. 



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