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https://issues.apache.org/jira/browse/HBASE-24903?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Javier Akira Luca de Tena updated HBASE-24903:
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Affects Version/s: 1.7.0
> 'scandetail' log message is missing when responseTooSlow happens in the rpc
> that closes the scanner
> ---------------------------------------------------------------------------------------------------
>
> Key: HBASE-24903
> URL: https://issues.apache.org/jira/browse/HBASE-24903
> Project: HBase
> Issue Type: Bug
> Affects Versions: 1.7.0, 1.4.13
> Reporter: Javier Akira Luca de Tena
> Priority: Minor
>
> 'scandetail' log message is missing when responseTooSlow happens in the rpc
> that closes the scanner.
> RSRpcServices.closeScanner is called before logging the slowLog in
> RPCServer.logResponse.
> Since closeScanner removes the scanner entry from scanners map, logResponse
> can't find scanDetails when calling RSRpcServices.getScanDetailsWithId.
>
> I have reproduced it by exhausting the region (no more results in the
> region), which sets moreResultsInRegion = false and cause to closeScanner in
> same rpc
> [https://github.com/apache/hbase/blob/c2e0cf989e4a86169219161d4d889db80288e636/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/RSRpcServices.java#L3235-L3237]
> At least, this seems the behavior in branch-1.
>
> I think this bug was introduced at
> https://issues.apache.org/jira/browse/HBASE-17489.
> Note that this is a completely different case than
> https://issues.apache.org/jira/browse/HBASE-24282.
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