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Posted to issues@hbase.apache.org by "Hudson (JIRA)" <ji...@apache.org> on 2012/11/05 02:36:31 UTC

[jira] [Commented] (HBASE-6728) [89-fb] prevent OOM possibility due to per connection responseQueue being unbounded

    [ https://issues.apache.org/jira/browse/HBASE-6728?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13490386#comment-13490386 ] 

Hudson commented on HBASE-6728:
-------------------------------

Integrated in HBase-0.94-security-on-Hadoop-23 #9 (See [https://builds.apache.org/job/HBase-0.94-security-on-Hadoop-23/9/])
    HBASE-6728 prevent OOM possibility due to per connection responseQueue being unbounded (Revision 1401382)

     Result = FAILURE
tedyu : 
Files : 
* /hbase/branches/0.94/src/main/java/org/apache/hadoop/hbase/ipc/HBaseServer.java
* /hbase/branches/0.94/src/main/java/org/apache/hadoop/hbase/regionserver/HRegionServer.java
* /hbase/branches/0.94/src/main/java/org/apache/hadoop/hbase/regionserver/metrics/RegionServerDynamicMetrics.java
* /hbase/branches/0.94/src/main/java/org/apache/hadoop/hbase/util/SizeBasedThrottler.java
* /hbase/branches/0.94/src/test/java/org/apache/hadoop/hbase/util/TestSizeBasedThrottler.java

                
> [89-fb] prevent OOM possibility due to per connection responseQueue being unbounded
> -----------------------------------------------------------------------------------
>
>                 Key: HBASE-6728
>                 URL: https://issues.apache.org/jira/browse/HBASE-6728
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Kannan Muthukkaruppan
>            Assignee: Michal Gregorczyk
>             Fix For: 0.94.3
>
>         Attachments: 6728.94, 6728-trunk.txt
>
>
> The per connection responseQueue is an unbounded queue. The request handler threads today try to send the response in line, but if things start to backup, the response is sent via a per connection responder thread. This intermediate queue, because it has no bounds, can be another source of OOMs.
> [Have not looked at this issue in trunk. So it may or may not be applicable there.]

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