[
https://issues.apache.org/jira/browse/HBASE-13098?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14336564#comment-14336564
]
Hadoop QA commented on HBASE-13098:
-----------------------------------
{color:red}-1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12700759/HBASE-13098.patch
against master branch at commit c651271f5759f39f282099999a50ab88a62d86b7.
ATTACHMENT ID: 12700759
{color:green}+1 @author{color}. The patch does not contain any @author
tags.
{color:green}+1 tests included{color}. The patch appears to include 4 new
or modified tests.
{color:green}+1 hadoop versions{color}. The patch compiles with all
supported hadoop versions (2.4.1 2.5.2 2.6.0)
{color:green}+1 javac{color}. The applied patch does not increase the
total number of javac compiler warnings.
{color:green}+1 javac{color}. The applied patch does not increase the
total number of javac compiler warnings.
{color:red}-1 javadoc{color}. The javadoc tool appears to have generated 6
warning messages.
{color:red}-1 checkstyle{color}. The applied patch generated
1939 checkstyle errors (more than the master's current 1938 errors).
{color:red}-1 findbugs{color}. The patch appears to introduce 2 new
Findbugs (version 2.0.3) warnings.
{color:green}+1 release audit{color}. The applied patch does not increase
the total number of release audit warnings.
{color:red}-1 lineLengths{color}. The patch introduces the following lines
longer than 100:
+ LOG.warn("Total connections number is: " + totalConnectionsNum +
", it is a invalid value.");
+ fail("Master username is assumed system call. ConnectionControl
connectionFinished should succeed.");
+ fail("RegionServer username is assumed system call. ConnectionControl
connectionFinished should return true");
+ fail("Master username is assumed system call. ConnectionControl
connectionFinished should return true");
+ fail("RegionServer username is assumed system call. ConnectionControl
connectionFinished should return true");
{color:green}+1 site{color}. The mvn site goal succeeds with this patch.
{color:red}-1 core tests{color}. The patch failed these unit tests:
org.apache.hadoop.hbase.TestCheckTestClasses
Test results:
https://builds.apache.org/job/PreCommit-HBASE-Build/12960//testReport/
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/12960//artifact/patchprocess/newPatchFindbugsWarningshbase-hadoop-compat.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/12960//artifact/patchprocess/newPatchFindbugsWarningshbase-prefix-tree.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/12960//artifact/patchprocess/newPatchFindbugsWarningshbase-examples.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/12960//artifact/patchprocess/newPatchFindbugsWarningshbase-server.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/12960//artifact/patchprocess/newPatchFindbugsWarningshbase-common.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/12960//artifact/patchprocess/newPatchFindbugsWarningshbase-rest.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/12960//artifact/patchprocess/newPatchFindbugsWarningshbase-protocol.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/12960//artifact/patchprocess/newPatchFindbugsWarningshbase-client.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/12960//artifact/patchprocess/newPatchFindbugsWarningshbase-thrift.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/12960//artifact/patchprocess/newPatchFindbugsWarningshbase-hadoop2-compat.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/12960//artifact/patchprocess/newPatchFindbugsWarningshbase-annotations.html
Checkstyle Errors:
https://builds.apache.org/job/PreCommit-HBASE-Build/12960//artifact/patchprocess/checkstyle-aggregate.html
Javadoc warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/12960//artifact/patchprocess/patchJavadocWarnings.txt
Console output:
https://builds.apache.org/job/PreCommit-HBASE-Build/12960//console
This message is automatically generated.
> HBase Connection Control
> ------------------------
>
> Key: HBASE-13098
> URL: https://issues.apache.org/jira/browse/HBASE-13098
> Project: HBase
> Issue Type: New Feature
> Components: security
> Affects Versions: 0.98.10
> Reporter: Ashish Singhi
> Assignee: Ashish Singhi
> Fix For: 2.0.0, 1.0.1, 1.1.0, 0.98.11
>
> Attachments: HBASE-13098.patch, HBase Connection Control.pdf
>
>
> It is desirable to set the limit on the number of client connections
> permitted to the HBase server by controlling with certain system
> variables/parameters. Too many connections to the HBase server imply too many
> queries and MR jobs running on HBase. This can slow down the performance of
> the system and lead to denial of service. Hence such connections need to be
> controlled. Using too many connections may just cause thrashing rather than
> get more useful work done.
> This is kind off inspired from
> http://www.ebaytechblog.com/2014/08/21/quality-of-service-in-hadoop/#.VO2JXXyUe9y
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