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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-11598) Add simple rpc throttling
Date Thu, 18 Sep 2014 21:16:34 GMT

    [ https://issues.apache.org/jira/browse/HBASE-11598?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14139528#comment-14139528

Hadoop QA commented on HBASE-11598:

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  against trunk revision .
  ATTACHMENT ID: 12669552

    {color:green}+1 @author{color}.  The patch does not contain any @author tags.

    {color:green}+1 tests included{color}.  The patch appears to include 28 new or modified

    {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 2 warning messages.

    {color:red}-1 findbugs{color}.  The patch appears to introduce 7 new Findbugs (version
2.0.3) warnings.

    {color:red}-1 release audit{color}.  The applied patch generated 1 release audit warnings
(more than the trunk's current 0 warnings).

    {color:red}-1 lineLengths{color}.  The patch introduces the following lines longer than
    +              new java.lang.String[] { "UserName", "UserGroup", "Namespace", "TableName",
"RemoveAll", "BypassGlobals", "Throttle", });
+        result = result && (Float.floatToIntBits(getShare())    == Float.floatToIntBits(other.getShare()));
+      "imit\030\002 \001(\004\022\r\n\005share\030\003 \001(\002\022#\n\005scope\030\004
\001(\016" +
+              new java.lang.String[] { "ReqNum", "ReqSize", "WriteNum", "WriteSize", "ReadNum",
"ReadSize", });

  {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:

Test results: https://builds.apache.org/job/PreCommit-HBASE-Build/10975//testReport/
Release audit warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/10975//artifact/trunk/patchprocess/patchReleaseAuditProblems.txt
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/10975//artifact/patchprocess/newPatchFindbugsWarningshbase-client.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/10975//artifact/patchprocess/newPatchFindbugsWarningshbase-thrift.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/10975//artifact/patchprocess/newPatchFindbugsWarningshbase-server.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/10975//artifact/patchprocess/newPatchFindbugsWarningshbase-hadoop2-compat.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/10975//artifact/patchprocess/newPatchFindbugsWarningshbase-protocol.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/10975//artifact/patchprocess/newPatchFindbugsWarningshbase-examples.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/10975//artifact/patchprocess/newPatchFindbugsWarningshbase-hadoop-compat.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/10975//artifact/patchprocess/newPatchFindbugsWarningshbase-prefix-tree.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/10975//artifact/patchprocess/newPatchFindbugsWarningshbase-common.html
Console output: https://builds.apache.org/job/PreCommit-HBASE-Build/10975//console

This message is automatically generated.

> Add simple rpc throttling
> -------------------------
>                 Key: HBASE-11598
>                 URL: https://issues.apache.org/jira/browse/HBASE-11598
>             Project: HBase
>          Issue Type: Sub-task
>            Reporter: Matteo Bertozzi
>            Assignee: Matteo Bertozzi
>            Priority: Minor
>             Fix For: 2.0.0
>         Attachments: HBASE-11598-v0.patch, HBASE-11598-v1.patch, HBASE-11598-v2.patch,
> Add a simple version of rpc throttling.
> (by simple I mean something that requires less changes as possible to the core)
> The idea is to add a hbase:quota table to store the user/table quota information.
> Add a couple of API on the client like throttleUser() and throttleTable()
> and on the server side before executing the request we check the quota, if not an exception
is thrown.
> The quota will be per-machine. There will be a flag "QuotaScope" that will be used in
the future to specify the quota at "cluster level" instead of per machine. (A limit of 100req/min
means that each machine can execute 100req/min with a scope per-machine).
> This will be the first cut, simple solution that requires verify few changes to the core.
> Later on we can make the client aware of the ThrottlingException and deal with it in
a smarter way.
> Also we need to change a bit the RPC code to be able to yield the operation if the quota
will be 
> available not to far in the future, and avoid going back to the client for "few seconds".
> REVIEW BOARD: https://reviews.apache.org/r/23981

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