[
https://issues.apache.org/jira/browse/HBASE-4785?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13150228#comment-13150228
]
Hadoop QA commented on HBASE-4785:
----------------------------------
-1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12503700/HBASE-4785.patch
against trunk revision .
+1 @author. The patch does not contain any @author tags.
-1 tests included. The patch doesn't appear to include any new or modified
tests.
Please justify why no new tests are needed for this
patch.
Also please list what manual steps were performed to
verify this patch.
-1 javadoc. The javadoc tool appears to have generated -163 warning
messages.
+1 javac. The applied patch does not increase the total number of javac
compiler warnings.
-1 findbugs. The patch appears to introduce 51 new Findbugs (version
1.3.9) warnings.
+1 release audit. The applied patch does not increase the total number of
release audit warnings.
-1 core tests. The patch failed these unit tests:
org.apache.hadoop.hbase.TestZooKeeper
org.apache.hadoop.hbase.master.TestRollingRestart
org.apache.hadoop.hbase.TestFullLogReconstruction
org.apache.hadoop.hbase.catalog.TestMetaReaderEditor
org.apache.hadoop.hbase.client.TestScannerTimeout
org.apache.hadoop.hbase.master.TestMasterFailover
Test results:
https://builds.apache.org/job/PreCommit-HBASE-Build/251//testReport/
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/251//artifact/trunk/patchprocess/newPatchFindbugsWarnings.html
Console output: https://builds.apache.org/job/PreCommit-HBASE-Build/251//console
This message is automatically generated.
> Improve recovery time of HBase client when a region server dies.
> ----------------------------------------------------------------
>
> Key: HBASE-4785
> URL: https://issues.apache.org/jira/browse/HBASE-4785
> Project: HBase
> Issue Type: Improvement
> Reporter: Nicolas Spiegelberg
> Assignee: Nicolas Spiegelberg
> Priority: Minor
> Fix For: 0.94.0
>
> Attachments: HBASE-4785.patch
>
>
> When a region server dies, the HBase client waits until the RPC timesout
> before learning that it needs to check META to find the new location of the
> region. And it incurs this *timeout* cost for every region being served by
> the dead region server. Remove this overhead by clearing the entries in cache
> that have the dead region server as their values.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators:
https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira
