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 <CALR_EG+8qFhOHHEeqBFdUFUDNXEWrBkY_vAtmwt-N0u7GFMHWg@mail.gmail.com>
Subject: Metrics ..
From: Mark Olimpiati <markq2011@gmail.com>
To: user@hadoop.apache.org
Content-Type: multipart/alternative; boundary=485b397dd7296ddf2104c86cd115

--485b397dd7296ddf2104c86cd115
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Hi,

  I enabled the "metrics.properties" to use FileContext, in which jvm
metrics values are written to a file as follows:

jvm.metrics: hostName= localhost, processName=MAP, sessionId=, gcCount=10,
gcTimeMillis=130, logError=0, logFatal=0, logInfo=21, logWarn=0,
memHeapCommittedM=180.1211, memHeapUsedM=102.630875,
memNonHeapCommittedM=23.191406, memNonHeapUsedM=11.828621,
threadsBlocked=0, threadsNew=0, threadsRunnable=2, threadsTerminated=0,
threadsTimedWaiting=3, threadsWaiting=2


Questions:
   - Is this line for a single Map jvm ? as the processName=MAP. If so, why
doesn't it show job-id in sessionId ???
   - Even though I ran maps and reducers tasks, I only got processName=MAP
/SHUFFLE, nothing for reducers why?

Thank you,
Mark

--485b397dd7296ddf2104c86cd115
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Content-Transfer-Encoding: quoted-printable

Hi,=A0<div><br></div><div>=A0 I enabled the &quot;metrics.properties&quot; =
to use FileContext, in which jvm metrics values are written to a file as fo=
llows:=A0</div><div><br></div><div><div>jvm.metrics: hostName=3D localhost,=
 processName=3DMAP, sessionId=3D, gcCount=3D10, gcTimeMillis=3D130, logErro=
r=3D0, logFatal=3D0, logInfo=3D21, logWarn=3D0, memHeapCommittedM=3D180.121=
1, memHeapUsedM=3D102.630875, memNonHeapCommittedM=3D23.191406, memNonHeapU=
sedM=3D11.828621, threadsBlocked=3D0, threadsNew=3D0, threadsRunnable=3D2, =
threadsTerminated=3D0, threadsTimedWaiting=3D3, threadsWaiting=3D2</div>
</div><div><br></div><div><br></div><div>Questions:</div><div>=A0 =A0- Is t=
his line for a single Map jvm ? as the processName=3DMAP. If so, why doesn&=
#39;t it show job-id in sessionId ???</div><div>=A0 =A0- Even though I ran =
maps and reducers tasks, I only got processName=3DMAP /SHUFFLE, nothing for=
 reducers why?</div>
<div><br></div><div>Thank you,</div><div>Mark</div>

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