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https://issues.apache.org/jira/browse/HBASE-7268?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13551700#comment-13551700
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Ted Yu commented on HBASE-7268:
-------------------------------
Looks like OK_FINDBUGS_WARNINGS in test-patch.properties should be updated.
Here is what I did:
{code}
tyu$ diff 7268-patchFindbugsWarningshbase-server.xml
7268-newPatchFindbugsWarningshbase-server.xml
1472c1472
< <FindBugsSummary timestamp="Fri, 11 Jan 2013 22:28:15 +0000"
total_classes="2339" referenced_classes="4194" total_bugs="115"
total_size="135738" num_packages="62" vm_version="20.2-b06" cpu_seconds="1.13"
clock_seconds="0.82" peak_mbytes="42.92" alloc_mbytes="519.12"
gc_seconds="0.00" priority_2="105" priority_1="10">
---
> <FindBugsSummary timestamp="Fri, 11 Jan 2013 22:28:15 +0000"
> total_classes="2339" referenced_classes="4194" total_bugs="115"
> total_size="135738" num_packages="62" vm_version="20.2-b06"
> cpu_seconds="1.22" clock_seconds="0.85" peak_mbytes="43.20"
> alloc_mbytes="519.12" gc_seconds="0.00" priority_2="105" priority_1="10">
3937c3937
< <ClassProfile name="edu.umd.cs.findbugs.SAXBugCollectionHandler"
totalMilliseconds="573" invocations="1" avgMicrosecondsPerInvocation="573533"
maxMicrosecondsPerInvocation="573533"
standardDeviationMircosecondsPerInvocation="0"/>
---
> <ClassProfile name="edu.umd.cs.findbugs.SAXBugCollectionHandler"
> totalMilliseconds="454" invocations="1" avgMicrosecondsPerInvocation="454904"
> maxMicrosecondsPerInvocation="454904"
> standardDeviationMircosecondsPerInvocation="0"/>
{code}
No material change between the two output files.
+1 on patch v7.
> correct local region location cache information can be overwritten w/stale
> information from an old server
> ---------------------------------------------------------------------------------------------------------
>
> Key: HBASE-7268
> URL: https://issues.apache.org/jira/browse/HBASE-7268
> Project: HBase
> Issue Type: Bug
> Affects Versions: 0.96.0
> Reporter: Sergey Shelukhin
> Assignee: Sergey Shelukhin
> Priority: Minor
> Fix For: 0.96.0
>
> Attachments: 7268-v6.patch, HBASE-7268-v0.patch, HBASE-7268-v0.patch,
> HBASE-7268-v1.patch, HBASE-7268-v2.patch, HBASE-7268-v2-plus-masterTs.patch,
> HBASE-7268-v2-plus-masterTs.patch, HBASE-7268-v3.patch, HBASE-7268-v4.patch,
> HBASE-7268-v5.patch, HBASE-7268-v6.patch, HBASE-7268-v7.patch
>
>
> Discovered via HBASE-7250; related to HBASE-5877.
> Test is writing from multiple threads.
> Server A has region R; client knows that.
> R gets moved from A to server B.
> B gets killed.
> R gets moved by master to server C.
> ~15 seconds later, client tries to write to it (on A?).
> Multiple client threads report from RegionMoved exception processing logic "R
> moved from C to B", even though such transition never happened (neither in
> nor before the sequence described below). Not quite sure how the client
> learned of the transition to C, I assume it's from meta from some other
> thread...
> Then, put fails (it may fail due to accumulated errors that are not logged,
> which I am investigating... but the bogus cache update is there
> nonwithstanding).
> I have a patch but not sure if it works, test still fails locally for yet
> unknown reason.
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