Actually if you are going to admin your own ZK it's probably a good
idea to review that Admin doc fully. Some other good detail in there
(backups and cleaning the datadir for example).



On Fri, Oct 29, 2010 at 7:22 AM, Tim Robertson
<> wrote:
> Great - thanks Patrick!
> On Thu, Oct 28, 2010 at 6:13 PM, Patrick Hunt <> wrote:
>> Tim, one other thing you might want to be aware of:
>> Patrick
>> On Thu, Oct 28, 2010 at 9:11 AM, Patrick Hunt <> wrote:
>>> On Thu, Oct 28, 2010 at 2:52 AM, Tim Robertson
>>> <> wrote:
>>>> We are setting up a small Hadoop 13 node cluster running 1 HDFS
>>>> master, 9 region severs for HBase and 3 map reduce nodes, and are just
>>>> installing zookeeper to perform the HBase coordination and to manage a
>>>> few simple process locks for other tasks we run.
>>>> Could someone please advise what kind on heap we should give to our
>>>> single ZK node and also (ahem) how does one actually set this? It's
>>>> not immediately obvious in the docs or config.
>>> The amount of heap necessary will be dependent on the application(s)
>>> using ZK, also configuration of the heap is dependent on what
>>> packaging you are using to start ZK.
>>> Are you using from our distribution? If so then you
>>> probably want to set JVMFLAGS env variable. We pass this through to
>>> the jvm, see -Xmx in the man page
>>> (
>>> Given this is Hbase (which I'm reasonably familiar with) the default
>>> heap should be fine. However you might want to check with the Hbase
>>> team on that.
>>> I'd also encourage you to enter a JIRA on the (lack of) doc issue you
>>> highlighted:
>>> Regards,
>>> Patrick

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