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https://issues.apache.org/jira/browse/HBASE-16345?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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huaxiang sun updated HBASE-16345:
---------------------------------
Description:
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
was:
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
> 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
> Reporter: huaxiang sun
> Assignee: huaxiang sun
> Attachments: HBASE-16345-v001.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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