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https://issues.apache.org/jira/browse/HBASE-12335?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14192899#comment-14192899
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Hudson commented on HBASE-12335:
--------------------------------
FAILURE: Integrated in HBase-1.0 #403 (See
[https://builds.apache.org/job/HBase-1.0/403/])
HBASE-12335 IntegrationTestRegionReplicaPerf is flaky (ndimiduk: rev
4a803e79e1c742ff877a3abc8cbe2939870707cf)
*
hbase-it/src/test/java/org/apache/hadoop/hbase/IntegrationTestRegionReplicaPerf.java
*
hbase-server/src/main/java/org/apache/hadoop/hbase/util/YammerHistogramUtils.java
* hbase-server/src/main/java/org/apache/hadoop/hbase/util/AbstractHBaseTool.java
* hbase-server/src/test/java/org/apache/hadoop/hbase/PerformanceEvaluation.java
> IntegrationTestRegionReplicaPerf is flaky
> -----------------------------------------
>
> Key: HBASE-12335
> URL: https://issues.apache.org/jira/browse/HBASE-12335
> Project: HBase
> Issue Type: Test
> Components: test
> Affects Versions: 0.99.0, 2.0.0
> Reporter: Nick Dimiduk
> Assignee: Nick Dimiduk
> Fix For: 2.0.0, 0.99.2
>
> Attachments: HBASE-12335.00-0.99.patch, HBASE-12335.00.patch,
> HBASE-12335.00.patch, HBASE-12335.00.patch, HBASE-12335.01-0.99.patch,
> HBASE-12335.01.patch, HBASE-12335.02.patch
>
>
> I find that this test often fails; the assertion that running with read
> replicas should complete faster than without is usually false. I need to
> investigate further as to why this is the case and how we should tune it.
> In the mean time, I'd like to change the test to assert instead on the
> average of the stdev across all the test runs in each category. Meaning,
> enabling this feature should reduce the overall latency variance experienced
> by the client.
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