[jira] [Commented] (AMBARI-22125) Druid process fails to start with OOME on small machines with default ambari configs

["Hadoop QA (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/AMBARI-22125?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16191264#comment-16191264 ] 

Hadoop QA commented on AMBARI-22125:
------------------------------------

{color:green}+1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12890256/AMBARI-22125.patch
  against trunk revision .

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

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

    {color:green}+1 release audit{color}.  The applied patch does not increase the total number of release audit warnings.

    {color:green}+1 javac{color}.  The applied patch does not increase the total number of javac compiler warnings.

    {color:green}+1 core tests{color}.  The patch passed unit tests in ambari-server.

Console output: https://builds.apache.org/job/Ambari-trunk-test-patch/12421//console

This message is automatically generated.

> Druid process fails to start with OOME on small machines with default ambari configs
> ------------------------------------------------------------------------------------
>
>                 Key: AMBARI-22125
>                 URL: https://issues.apache.org/jira/browse/AMBARI-22125
>             Project: Ambari
>          Issue Type: Bug
>            Reporter: Nishant Bangarwa
>            Assignee: Nishant Bangarwa
>            Priority: Blocker
>             Fix For: trunk, 2.6.0
>
>         Attachments: AMBARI-22125.patch
>
>
> Druid fails to start with ambari default configs when all the druid processes are allocated on a single node. 
> stack trace - 
> {code} 
> Caused by: java.lang.OutOfMemoryError
>         at sun.misc.Unsafe.allocateMemory(Native Method)
>         at java.nio.DirectByteBuffer.<init>(DirectByteBuffer.java:127)
>         at java.nio.ByteBuffer.allocateDirect(ByteBuffer.java:311)
>         at io.druid.offheap.OffheapBufferGenerator.get(OffheapBufferGenerator.java:53)
>         at io.druid.offheap.OffheapBufferGenerator.get(OffheapBufferGenerator.java:29)
>         at io.druid.collections.DefaultBlockingPool.<init>(DefaultBlockingPool.java:58)
>         at io.druid.guice.DruidProcessingModule.getMergeBufferPool(DruidProcessingModule.java:126)
>         at io.druid.guice.DruidProcessingModule$$FastClassByGuice$$8e266e5c.invoke(<generated>)
>         at com.google.inject.internal.ProviderMethod$FastClassProviderMethod.doProvision(ProviderMethod.java:264)
>         at com.google.inject.internal.ProviderMethod$Factory.provision(ProviderMethod.java:401)
>         at com.google.inject.internal.ProviderMethod$Factory.get(ProviderMethod.java:376)
>         at com.google.inject.internal.ProviderToInternalFactoryAdapter$1.call(ProviderToInternalFactoryAdapter.java:46)
> {code}



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