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https://issues.apache.org/jira/browse/HBASE-6943?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13469799#comment-13469799
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Phabricator commented on HBASE-6943:
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mbautin has closed the revision "[jira] [HBASE-6943] [89-fb] Do not catch
certain exceptions trying to get an RS connection".
CHANGED PRIOR TO COMMIT
https://reviews.facebook.net/D5877?vs=19413&id=19425#differential-review-toc
REVISION DETAIL
https://reviews.facebook.net/D5877
COMMIT
https://reviews.facebook.net/rHBASEEIGHTNINEFBBRANCH1394307
To: Kannan, Liyin, Karthik, JIRA, mbautin
Cc: avf, adela, pritamdamania, aaiyer, nspiegelberg, amirshim, mycnyc
> [89-fb] Do not catch certain exceptions trying to get an RS connection
> ----------------------------------------------------------------------
>
> Key: HBASE-6943
> URL: https://issues.apache.org/jira/browse/HBASE-6943
> Project: HBase
> Issue Type: Bug
> Reporter: Mikhail Bautin
> Attachments: D5877.1.patch, D5877.2.patch, D5877.3.patch,
> D5877.4.patch
>
>
> When getting a regionserver connection in 0.89-fb in HBaseClient, we catch
> all types of Throwable. I have observed a real case when the client looked
> stuck. On debugging it turned out that a NoSuchMethodError was thrown and
> caught, leaving the connection in an inconsistent state (initialized socket
> but null streams). All following attempts resulted in NPEs that were also
> caught, and no errors were logged. From the user's perspective the client was
> just stuck. The root cause was the absence of a required jar (hence the
> NoSuchMethodError) but it was not reported properly.
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