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From Patrick Hunt <ph...@apache.org>
Subject Re: setting zookeeper heap size
Date Fri, 11 Nov 2011 00:51:36 GMT
Perhaps easier to just use jmap?

sudo jmap -heap <jvmpid>

Patrick

On Thu, Nov 10, 2011 at 3:49 PM, Ed Sexton <sextonhadoop@gmail.com> wrote:
> Hi Henry,
>
> I checked the process listing via ps and top, and saw VIRT=6477m  and
> RES=83m.
>
> How would one check if it is the jvm heap vs mapped space?
>
> Thanks as always Henry.
> Ed
>
> On Thu, Nov 10, 2011 at 2:04 PM, Henry Robinson <henry@cloudera.com> wrote:
>
>> Ed - how are you making the observation that the heap size is 6477m? Is it
>> from a profiler, or from top or similar? The amount of virtual memory
>> mapped for Java processes can often be very large, especially on recent
>> RHEL systems with the new arena allocator in glibc. Worth checking whether
>> it's the JVM heap or the amount of mapped space.
>>
>> cheers,
>> Henry
>>
>> On 10 November 2011 13:47, Ed Sexton <sextonhadoop@gmail.com> wrote:
>>
>> > Hello Group-
>> >
>> > I am running CDH zookeeper version 3.3.3+12.12 and noticed that zookeeper
>> > is running with a heapsize of 6477m.
>> >
>> > I start zookeeper standalone, via /etc/init.d/hadoop-zookeeper-server.  I
>> > do not see reference to any ZOOKEEPER_HEAPIZE in the startup or zoo.cfg,
>> > nor do I see any special JVMFLAGS in export/usr/bin/zookeeper-server,
>> which
>> > is what is called by the startup script, it just has this definition:
>> >
>> > JVMFLAGS=-Dzookeeper.log.threshold=INFO
>> >
>> > Can someone guide me to where the 6GB heapsize is being referenced?  This
>> > seems a bit large of a heap.
>> >
>> > Thanks for your guidance.
>> >
>> > Sincerely,
>> > Ed
>> >
>>
>>
>>
>> --
>> Henry Robinson
>> Software Engineer
>> Cloudera
>> 415-994-6679
>>
>
>
>
> --
> Sincerely,
> Ed Sexton
> e: sextonhadoop@gmail.com
> gv: (408) 475-2358
>

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