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Subject: Re: ZooKeeper
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Not sure, but this may be problem..<mem type=3D"nursery" free=3D"0" total=
=3D"120782848" percent=3D"0" />
=20
You may try to adjust memory assigned to JVM. I think=C2=A0-Xns=C2=A0is the=
 option you may like to use.=C2=A0


     On Thursday, 16 April 2015 10:52 AM, Chris Barlock <barlock@us.ibm.com=
> wrote:
  =20

 We have a system which is running a single instance of ZK.=C2=A0 It is=20
currently using 100% of a CPU core.=C2=A0 The zookeeper-server.err file is=
=20
logging one of these entries every two seconds:

<exclusive-start id=3D"699575" timestamp=3D"2015-04-16T13:43:10.361"=20
intervalms=3D"2179.021">
=C2=A0 <response-info timems=3D"0.011" idlems=3D"0.011" threads=3D"0"=20
lastid=3D"000000002152F500"=20
lastname=3D"NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181" />
</exclusive-start>
<af-start id=3D"699576" totalBytesRequested=3D"16392"=20
timestamp=3D"2015-04-16T13:43:10.361" intervalms=3D"2179.019" />
<cycle-start id=3D"699577" type=3D"scavenge" contextid=3D"0"=20
timestamp=3D"2015-04-16T13:43:10.361" intervalms=3D"2179.017" />
<gc-start id=3D"699578" type=3D"scavenge" contextid=3D"699577"=20
timestamp=3D"2015-04-16T13:43:10.361">
=C2=A0 <mem-info id=3D"699579" free=3D"325374712" total=3D"523370496" perce=
nt=3D"62">
=C2=A0 =C2=A0 <mem type=3D"nursery" free=3D"0" total=3D"120782848" percent=
=3D"0" />
=C2=A0 =C2=A0 <mem type=3D"tenure" free=3D"325374712" total=3D"402587648" p=
ercent=3D"80">
=C2=A0 =C2=A0 =C2=A0 <mem type=3D"soa" free=3D"324569848" total=3D"40178278=
4" percent=3D"80" />
=C2=A0 =C2=A0 =C2=A0 <mem type=3D"loa" free=3D"804864" total=3D"804864" per=
cent=3D"100" />
=C2=A0 =C2=A0 </mem>
=C2=A0 =C2=A0 <remembered-set count=3D"1964" />
=C2=A0 </mem-info>
</gc-start>
<allocation-stats totalBytes=3D"120125544" >
=C2=A0 <allocated-bytes non-tlh=3D"16392" tlh=3D"120109152" />
=C2=A0 <largest-consumer threadName=3D"NIOServerCxn.Factory:0.0.0.0/0.0.0.0=
:2181"=20
threadId=3D"000000002152F500" bytes=3D"118617128" />
</allocation-stats>
<gc-op id=3D"699580" type=3D"scavenge" timems=3D"1.907" contextid=3D"699577=
"=20
timestamp=3D"2015-04-16T13:43:10.363">
=C2=A0 <scavenger-info tenureage=3D"14" tiltratio=3D"89" />
=C2=A0 <memory-copied type=3D"nursery" objects=3D"1099" bytes=3D"93088"=20
bytesdiscarded=3D"300896" />
=C2=A0 <memory-copied type=3D"tenure" objects=3D"12" bytes=3D"8464"=20
bytesdiscarded=3D"122608" />
</gc-op>
<gc-end id=3D"699581" type=3D"scavenge" contextid=3D"699577" durationms=3D"=
1.977"=20
timestamp=3D"2015-04-16T13:43:10.363">
=C2=A0 <mem-info id=3D"699582" free=3D"445632504" total=3D"523370496" perce=
nt=3D"85">
=C2=A0 =C2=A0 <mem type=3D"nursery" free=3D"120388864" total=3D"120782848" =
percent=3D"99" />
=C2=A0 =C2=A0 <mem type=3D"tenure" free=3D"325243640" total=3D"402587648" p=
ercent=3D"80">
=C2=A0 =C2=A0 =C2=A0 <mem type=3D"soa" free=3D"324438776" total=3D"40178278=
4" percent=3D"80" />
=C2=A0 =C2=A0 =C2=A0 <mem type=3D"loa" free=3D"804864" total=3D"804864" per=
cent=3D"100" />
=C2=A0 =C2=A0 </mem>
=C2=A0 =C2=A0 <remembered-set count=3D"107" />
=C2=A0 </mem-info>
</gc-end>
<cycle-end id=3D"699583" type=3D"scavenge" contextid=3D"699577"=20
timestamp=3D"2015-04-16T13:43:10.363" />
<allocation-satisfied id=3D"699584" threadId=3D"000000002152F500"=20
bytesRequested=3D"16392" />
<af-end id=3D"699585" timestamp=3D"2015-04-16T13:43:10.363" />
<exclusive-end id=3D"699586" timestamp=3D"2015-04-16T13:43:10.363"=20
durationms=3D"2.177" />

I can connec to the server with zkCli.sh, but a simple "ls /" fails with a=
=20
ConnectionLossException.=C2=A0 I have no idea how to go about diagnosing th=
e=20
problem, so any help would be appreciated.

Thanks!

Chris


  
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