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Posted to issues@hbase.apache.org by "Esteban Gutierrez (JIRA)" <ji...@apache.org> on 2016/11/14 21:40:58 UTC
[jira] [Updated] (HBASE-16345)
RpcRetryingCallerWithReadReplicas#call() should catch some RegionServer
Exceptions
[ https://issues.apache.org/jira/browse/HBASE-16345?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Esteban Gutierrez updated HBASE-16345:
--------------------------------------
Resolution: Fixed
Status: Resolved (was: Patch Available)
Marking this solved.
> RpcRetryingCallerWithReadReplicas#call() should catch some RegionServer Exceptions
> ----------------------------------------------------------------------------------
>
> Key: HBASE-16345
> URL: https://issues.apache.org/jira/browse/HBASE-16345
> Project: HBase
> Issue Type: Bug
> Components: Client
> Affects Versions: 2.0.0, 1.3.0, 1.0.3, 1.4.0, 1.2.3, 1.1.7
> Reporter: huaxiang sun
> Assignee: huaxiang sun
> Fix For: 2.0.0, 1.4.0
>
> Attachments: HBASE-16345-v001.patch, HBASE-16345.branch-1.001.patch, HBASE-16345.branch-1.001.patch, HBASE-16345.master.001.patch, HBASE-16345.master.002.patch, HBASE-16345.master.003.patch, HBASE-16345.master.004.patch, HBASE-16345.master.005.patch, HBASE-16345.master.005.patch, HBASE-16345.master.006.patch
>
>
> Update for the description. Debugged more at this front based on the comments from Enis.
> The cause is that for the primary replica, if its retry is exhausted too fast, f.get() [1] returns ExecutionException. This Exception needs to be ignored and continue with the replicas.
> The other issue is that after adding calls for the replicas, if the first completed task gets ExecutionException (due to the retry exhausted), it throws the exception to the client[2].
> In this case, it needs to loop through these tasks, waiting for the success one. If no one succeeds, throw exception.
> Similar for the scan as well
> [1] https://github.com/apache/hbase/blob/master/hbase-client/src/main/java/org/apache/hadoop/hbase/client/RpcRetryingCallerWithReadReplicas.java#L197
> [2] https://github.com/apache/hbase/blob/master/hbase-client/src/main/java/org/apache/hadoop/hbase/client/RpcRetryingCallerWithReadReplicas.java#L219
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