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From "Vikas Vishwakarma (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (PHOENIX-4044) Orphaned chunk bytes found during finalize in
Date Fri, 21 Jul 2017 10:52:00 GMT

     [ https://issues.apache.org/jira/browse/PHOENIX-4044?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Vikas Vishwakarma updated PHOENIX-4044:
---------------------------------------
    Summary: Orphaned chunk bytes found during finalize in   (was: Orphaned chunk of 15650000
bytes found during finalize)

> Orphaned chunk bytes found during finalize in 
> ----------------------------------------------
>
>                 Key: PHOENIX-4044
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-4044
>             Project: Phoenix
>          Issue Type: Bug
>    Affects Versions: 4.10.0
>            Reporter: Vikas Vishwakarma
>            Priority: Minor
>
> Observing these WARNINGS in the RegionServer logs similar to what is discussed PHOENIX-1011
> 2017-07-20 10:10:00,421 WARN  [Finalizer] memory.GlobalMemoryManager - Orphaned chunk
of 15650000 bytes found during finalize
> 2017-07-20 10:10:00,421 WARN  [Finalizer] memory.GlobalMemoryManager - Orphaned chunk
of 15650000 bytes found during finalize
> 2017-07-20 10:10:21,153 WARN  [Finalizer] memory.GlobalMemoryManager - Orphaned chunk
of 15650000 bytes found during finalize
> I am not able to identify the exact sequence of events that lead to these warnings but
the scenario we were testing is as follows:
> We were trying to simulate Index update failures for one of our tests to check index
rebuild scenario
> For this we did a close_region on one of the index table regions so that all updates
on this region will fail with NSRE
> With this we start seeing index update failures, scanner lease expiries, etc 
> After sometime we re-assign the closed_region to trigger index rebuild
> We start seeing these WARNING messages related to Orphaned chunks in Regionserver logs
in this case



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