Oh, please ignore my wrong message!

On Thu, Oct 31, 2013 at 3:59 PM, Jessie <[email protected]> wrote:

> As you know I really liked what I saw and heard during the interview
> besides what I have found via my own research online. However coming on
> board as a contractor to this environment, you can understand my concern
> about how to meet their expectation and create a win-win-win situation.
> Should I have met with the management during the interview and be more
> clear about my initial duties and responsibilities, I would be more
> comfortable coming on board as a contractor. Particularly if my initial
> assignment is performing SDET duties, then I need to feel secure to be able
> to communicate freely with my management as this job is not 'ground up',
> and diplomacy and trust and good relationship are important to the success,
> not just technical. Don't you agree with me?
>
>
> On Thu, Oct 31, 2013 at 3:20 PM, Jason Lowe <[email protected]> wrote:
>
>> Pinged Bobby who has access to the machines, and this is indeed what is
>> happening.  There were two cases:
>>
>> 1) When TestUberAM times out the minicluster it is running along with its
>> MRAppMaster process can escape.  There are a ton of threads in those
>> processes, so it doesn't take very many of these to leak before the process
>> ulimit is hit.
>>
>> 2) There were a couple of other surefire processes that had leaked but
>> they had no discernable state left that would identify which test it was
>> running other than it was something inside of mapreduce-client-jobclient
>> (which could still be TestUberAM).  The main thread and most other
>> non-daemon threads were gone, but there was a lone SocketReader thread that
>> was still hanging around.  It wasn't a daemon thread and was apparently the
>> only thread keeping the JVM alive.
>>
>> So we need to prioritize fixing the TestUberAM hang, currently tracked by
>> MAPREDUCE-5481 
>> <https://issues.apache.org/**jira/browse/MAPREDUCE-5481<https://issues.apache.org/jira/browse/MAPREDUCE-5481>>
>> and/or find a way to keep it from escaping during builds.  There might be
>> another issue where SocketReader threads can prevent the JVM from shutting
>> down completely in some cases.
>>
>> Jason
>>
>> On 10/31/2013 08:19 AM, Jason Lowe wrote:
>>
>>> I don't think that OOM error below indicates it needs more heap space,
>>> as it's complaining about the ability to create a new native thread.  That
>>> usually is caused by lack of available virtual address space or hitting
>>> process ulimits.
>>>
>>> What's most likely going on is the jenkins user is hitting a process
>>> ulimit.  This can occur if processes have "leaked" from previous build/test
>>> runs and are using a large number of threads, or a large number of
>>> processes have leaked overall.  Could someone with access to the build
>>> machines check if that is indeed the case?  If it has, bonus points for
>>> indentifying the source of the leak. ;-)
>>>
>>> Thanks!
>>>
>>> Jason
>>>
>>> On 10/30/2013 05:39 PM, Roman Shaposhnik wrote:
>>>
>>>> I can take a look sometime later today. Meantime I can only
>>>> say that I've been running into 1Gb limit in a few builds as
>>>> of late. These days -- I just go with 2G by default.
>>>>
>>>> Thanks,
>>>> Roman.
>>>>
>>>> On Wed, Oct 30, 2013 at 3:33 PM, Alejandro Abdelnur <[email protected]>
>>>> wrote:
>>>>
>>>>> The following is happening in builds for MAPREDUCE and YARN patches.
>>>>> I've seen the failures in hadoop5 and hadoop7 machines. I've increased
>>>>> Maven memory to 1GB (export MAVEN_OPTS="-Xmx1024m" in the jenkins
>>>>> jobs) but still some failures persist:
>>>>> https://builds.apache.org/job/**PreCommit-MAPREDUCE-Build/**4159/<https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/4159/>
>>>>>
>>>>> Does anybody has an idea of what may be going on?
>>>>>
>>>>>
>>>>>
>>>>> thx
>>>>>
>>>>>
>>>>> [INFO] --- native-maven-plugin:1.0-alpha-**7:javah (default) @
>>>>> hadoop-common ---
>>>>> [INFO] /bin/sh -c cd
>>>>> /home/jenkins/jenkins-slave/**workspace/PreCommit-MAPREDUCE-**
>>>>> Build/trunk/hadoop-common-**project/hadoop-common
>>>>> && /home/jenkins/tools/java/**latest/bin/javah -d
>>>>> /home/jenkins/jenkins-slave/**workspace/PreCommit-MAPREDUCE-**
>>>>> Build/trunk/hadoop-common-**project/hadoop-common/target/**native/javah
>>>>>
>>>>> -classpath /home/jenkins/jenkins-slave/**
>>>>> workspace/PreCommit-MAPREDUCE-**Build/trunk/hadoop-common-**
>>>>> project/hadoop-common/target/**classes:/home/jenkins/jenkins-**
>>>>> slave/workspace/PreCommit-**MAPREDUCE-Build/trunk/hadoop-**
>>>>> common-project/hadoop-**annotations/target/classes:/**
>>>>> home/jenkins/tools/java/jdk1.**6.0_26/jre/../lib/tools.jar:/**
>>>>> home/jenkins/.m2/repository/**com/google/guava/guava/11.0.2/**
>>>>> guava-11.0.2.jar:/home/**jenkins/.m2/repository/com/**
>>>>> google/code/findbugs/jsr305/1.**3.9/jsr305-1.3.9.jar:/home/**
>>>>> jenkins/.m2/repository/**commons-cli/commons-cli/1.2/**
>>>>> commons-cli-1.2.jar:/home/**jenkins/.m2/repository/org/**
>>>>> apache/commons/commons-math/2.**1/commons-math-2.1.jar:/home/**
>>>>> jenkins/.m2/repository/xmlenc/**xmlenc/0.52/xmlenc-0.52.jar:/**
>>>>> home/jenkins/.m2/repository/**commons-httpclient/commons-**
>>>>> httpclient/3.1/commons-**httpclient-3.1.jar:/home/**
>>>>> jenkins/.m2/repository/**commons-codec/commons-codec/1.**
>>>>> 4/commons-codec-1.4.jar:/home/**jenkins/.m2/repository/**
>>>>> commons-io/commons-io/2.1/**commons-io-2.1.jar:/home/**
>>>>> jenkins/.m2/repository/**commons-net/commons-net/3.1/**
>>>>> commons-net-3.1.jar:/home/**jenkins/.m2/repository/javax/**
>>>>> servlet/servlet-api/2.5/**servlet-api-2.5.jar:/home/**
>>>>> jenkins/.m2/repository/org/**mortbay/jetty/jetty/6.1.26/**
>>>>> jetty-6.1.26.jar:/home/**jenkins/.m2/repository/org/**
>>>>> mortbay/jetty/jetty-util/6.1.**26/jetty-util-6.1.26.jar:/**
>>>>> home/jenkins/.m2/repository/**com/sun/jersey/jersey-core/1.**
>>>>> 9/jersey-core-1.9.jar:/home/**jenkins/.m2/repository/com/**
>>>>> sun/jersey/jersey-json/1.9/**jersey-json-1.9.jar:/home/**
>>>>> jenkins/.m2/repository/org/**codehaus/jettison/jettison/1.**
>>>>> 1/jettison-1.1.jar:/home/**jenkins/.m2/repository/stax/**
>>>>> stax-api/1.0.1/stax-api-1.0.1.**jar:/home/jenkins/.m2/**
>>>>> repository/com/sun/xml/bind/**jaxb-impl/2.2.3-1/jaxb-impl-2.**
>>>>> 2.3-1.jar:/home/jenkins/.m2/**repository/javax/xml/bind/**
>>>>> jaxb-api/2.2.2/jaxb-api-2.2.2.**jar:/home/jenkins/.m2/**
>>>>> repository/javax/activation/**activation/1.1/activation-1.1.**
>>>>> jar:/home/jenkins/.m2/**repository/org/codehaus/**
>>>>> jackson/jackson-jaxrs/1.8.8/**jackson-jaxrs-1.8.8.jar:/home/**
>>>>> jenkins/.m2/repository/org/**codehaus/jackson/jackson-xc/1.**
>>>>> 8.8/jackson-xc-1.8.8.jar:/**home/jenkins/.m2/repository/**
>>>>> com/sun/jersey/jersey-server/**1.9/jersey-server-1.9.jar:/**
>>>>> home/jenkins/.m2/repository/**asm/asm/3.2/asm-3.2.jar:/home/**
>>>>> jenkins/.m2/repository/**commons-logging/commons-**
>>>>> logging/1.1.1/commons-logging-**1.1.1.jar:/home/jenkins/.m2/**
>>>>> repository/log4j/log4j/1.2.17/**log4j-1.2.17.jar:/home/**
>>>>> jenkins/.m2/repository/net/**java/dev/jets3t/jets3t/0.6.1/**
>>>>> jets3t-0.6.1.jar:/home/**jenkins/.m2/repository/**
>>>>> commons-lang/commons-lang/2.5/**commons-lang-2.5.jar:/home/**
>>>>> jenkins/.m2/repository/**commons-configuration/commons-**
>>>>> configuration/1.6/commons-**configuration-1.6.jar:/home/**
>>>>> jenkins/.m2/repository/**commons-collections/commons-**
>>>>> collections/3.2.1/commons-**collections-3.2.1.jar:/home/**
>>>>> jenkins/.m2/repository/**commons-digester/commons-**
>>>>> digester/1.8/commons-digester-**1.8.jar:/home/jenkins/.m2/**
>>>>> repository/commons-beanutils/**commons-beanutils/1.7.0/**
>>>>> commons-beanutils-1.7.0.jar:/**home/jenkins/.m2/repository/**
>>>>> commons-beanutils/commons-**beanutils-core/1.8.0/commons-**
>>>>> beanutils-core-1.8.0.jar:/**home/jenkins/.m2/repository/**
>>>>> org/slf4j/slf4j-api/1.7.5/**slf4j-api-1.7.5.jar:/home/**
>>>>> jenkins/.m2/repository/org/**codehaus/jackson/jackson-core-**
>>>>> asl/1.8.8/jackson-core-asl-1.**8.8.jar:/home/jenkins/.m2/**
>>>>> repository/org/codehaus/**jackson/jackson-mapper-asl/1.**
>>>>> 8.8/jackson-mapper-asl-1.8.8.**jar:/home/jenkins/.m2/**
>>>>> repository/org/apache/avro/**avro/1.7.4/avro-1.7.4.jar:/**
>>>>> home/jenkins/.m2/repository/**com/thoughtworks/paranamer/**
>>>>> paranamer/2.3/paranamer-2.3.**jar:/home/jenkins/.m2/**
>>>>> repository/org/xerial/snappy/**snappy-java/1.0.4.1/snappy-**
>>>>> java-1.0.4.1.jar:/home/**jenkins/.m2/repository/com/**
>>>>> google/protobuf/protobuf-java/**2.5.0/protobuf-java-2.5.0.jar:**
>>>>> /home/jenkins/jenkins-slave/**workspace/PreCommit-MAPREDUCE-**
>>>>> Build/trunk/hadoop-common-**project/hadoop-auth/target/**
>>>>> classes:/home/jenkins/.m2/**repository/com/jcraft/jsch/0.**
>>>>> 1.42/jsch-0.1.42.jar:/home/**jenkins/.m2/repository/org/**
>>>>> apache/zookeeper/zookeeper/3.**4.5/zookeeper-3.4.5.jar:/home/**
>>>>> jenkins/.m2/repository/org/**apache/commons/commons-**
>>>>> compress/1.4.1/commons-**compress-1.4.1.jar:/home/**
>>>>> jenkins/.m2/repository/org/**tukaani/xz/1.0/xz-1.0.jar<http://1.0.4.1/snappy-java-1.0.4.1.jar:/home/jenkins/.m2/repository/com/google/protobuf/protobuf-java/2.5.0/protobuf-java-2.5.0.jar:/home/jenkins/jenkins-slave/workspace/PreCommit-MAPREDUCE-Build/trunk/hadoop-common-project/hadoop-auth/target/classes:/home/jenkins/.m2/repository/com/jcraft/jsch/0.1.42/jsch-0.1.42.jar:/home/jenkins/.m2/repository/org/apache/zookeeper/zookeeper/3.4.5/zookeeper-3.4.5.jar:/home/jenkins/.m2/repository/org/apache/commons/commons-compress/1.4.1/commons-compress-1.4.1.jar:/home/jenkins/.m2/repository/org/tukaani/xz/1.0/xz-1.0.jar>
>>>>> org.apache.hadoop.io.compress.**zlib.ZlibCompressor
>>>>> org.apache.hadoop.io.compress.**zlib.ZlibDecompressor
>>>>> org.apache.hadoop.io.compress.**bzip2.Bzip2Compressor
>>>>> org.apache.hadoop.io.compress.**bzip2.Bzip2Decompressor
>>>>> org.apache.hadoop.security.**JniBasedUnixGroupsMapping
>>>>> org.apache.hadoop.io.nativeio.**NativeIO
>>>>> org.apache.hadoop.security.**JniBasedUnixGroupsNetgroupMapp**ing
>>>>> org.apache.hadoop.io.compress.**snappy.SnappyCompressor
>>>>> org.apache.hadoop.io.compress.**snappy.SnappyDecompressor
>>>>> org.apache.hadoop.io.compress.**lz4.Lz4Compressor
>>>>> org.apache.hadoop.io.compress.**lz4.Lz4Decompressor
>>>>> org.apache.hadoop.util.**NativeCrc32
>>>>> org.apache.hadoop.net.unix.**DomainSocket
>>>>> Error occurred during initialization of VM
>>>>> java.lang.OutOfMemoryError: unable to create new native thread
>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> Alejandro
>>>>>
>>>>
>>>
>>>
>>
>

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