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https://issues.apache.org/jira/browse/HADOOP-17224?focusedWorklogId=525284&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-525284
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ASF GitHub Bot logged work on HADOOP-17224:
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Author: ASF GitHub Bot
Created on: 16/Dec/20 21:40
Start Date: 16/Dec/20 21:40
Worklog Time Spent: 10m
Work Description: amahussein commented on pull request #2537:
URL: https://github.com/apache/hadoop/pull/2537#issuecomment-747057646
> All OOMs are "unable to create new native thread" indicating ulimit or
resource shortage to create LWP. The first OOM is in TestJvmMetrics in
hadoop-common. If ISA-L is related, the cause should be in the code path of
ErasureCodeNative#loadLibrary. I don't have clear insight yet. I think we have
been familiar with test failures by "unable to create new native thread" for a
long time..
@iwasakims , I cannot fully confident that `ErasureCodeNative#loadLibrary`
is a strong indication that ISLA-L does not contribute to the OOM.
ISA-L is a native library; therefore loading this library means different
memory allocations and possibly some background threads.
For sure, we do not want to blame those pre-existing failures to ISA-L.
However, adding ISA-L could increase failures because of the hadoop code, or
the native code.
I think there are two approaches:
1. Profile the memory. Then compare the two profiles with and without ISA-L.
If there is no Yetus hookup to do that, then it will have to be done on a local
machine for a sample of unit tests.
2. Add another commit that ignores the failures frequently reported in QBT
report. In addition I suggest adding "ignore" to
`TestDistributredShell#testDistributedShellWithResourcesWithLargeContainers`
and `TestDistributredShell#testDistributedShellWithResources`. Those two tests
leave two ApplicationMaster processes running in the background. After ignoring
the "every-day" failures, we can look at the remaining failures as possible
consequences of loading ISA-L.
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Issue Time Tracking
-------------------
Worklog Id: (was: 525284)
Time Spent: 3h 10m (was: 3h)
> Install Intel ISA-L library in Dockerfile
> -----------------------------------------
>
> Key: HADOOP-17224
> URL: https://issues.apache.org/jira/browse/HADOOP-17224
> Project: Hadoop Common
> Issue Type: Bug
> Reporter: Takanobu Asanuma
> Assignee: Takanobu Asanuma
> Priority: Blocker
> Labels: pull-request-available
> Fix For: 3.4.0
>
> Time Spent: 3h 10m
> Remaining Estimate: 0h
>
> Currently, there is not isa-l library in the docker container, and jenkins
> skips the natvie tests, TestNativeRSRawCoder and TestNativeXORRawCoder.
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