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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-15232) Exceptions returned over multi RPC don't automatically trigger region location reloads
Date Tue, 23 Feb 2016 18:59:18 GMT

    [ https://issues.apache.org/jira/browse/HBASE-15232?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15159420#comment-15159420
] 

Hudson commented on HBASE-15232:
--------------------------------

FAILURE: Integrated in HBase-1.3-IT #512 (See [https://builds.apache.org/job/HBase-1.3-IT/512/])
HBASE-15232 Handle region location cache mgmt in AsyncProcess for (stack: rev d747188f2cb7d198393a35f4dde543a798fed3c8)
* hbase-server/src/test/java/org/apache/hadoop/hbase/client/TestHTableMultiplexerFlushCache.java
* hbase-client/src/main/java/org/apache/hadoop/hbase/exceptions/ClientExceptionsUtil.java
* hbase-client/src/test/java/org/apache/hadoop/hbase/client/TestHTableMultiplexerViaMocks.java
* hbase-client/src/main/java/org/apache/hadoop/hbase/client/AsyncProcess.java
* hbase-client/src/main/java/org/apache/hadoop/hbase/client/HTableMultiplexer.java


> Exceptions returned over multi RPC don't automatically trigger region location reloads
> --------------------------------------------------------------------------------------
>
>                 Key: HBASE-15232
>                 URL: https://issues.apache.org/jira/browse/HBASE-15232
>             Project: HBase
>          Issue Type: Sub-task
>          Components: Client
>            Reporter: Josh Elser
>            Assignee: Josh Elser
>             Fix For: 2.0.0, 1.3.0, 1.2.1
>
>         Attachments: HBASE-15232-branch-1.002.patch, HBASE-15232.001.patch, HBASE-15232.002.patch,
HBASE-15232.002.patch
>
>
> Follow-on for HBASE-15221:
> A work-around was added in HTableMultiplexer to work around an issue that AsyncProcess
wasn't clearing the region location cache on Exception. This was stemming from the issue that
the {{tableName}} is {{null}} because HTableMultiplexer is using the {{multi}} RPC. This causes
an error that looks like:
> {noformat}
> [WARN] Coding error, see method javadoc. row=[B@1673eff, tableName=null
> {noformat}
> HBASE-15221 should fix HTableMultiplexer, but it would be good to push the fix down into
AsyncProcess instead of using higher-level workarounds.



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