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From Shahnawaz Saifi <shahsa...@gmail.com>
Subject Re: HRegionserver memory usage
Date Tue, 22 Mar 2011 15:58:34 GMT
we are using hbase-0.20.6
hbasemaster, master & secondary nn has 36GB of Memory, zookeeper & slave
datanodes got 16GB. And heap size is default in hbase-env.sh.

unresponsive: box is not accessible it hangs and shows java error on screen.


DN uses entire available resources. Client are able to store data into hbase
but not completely because job crashes as box goes out of memory and hangs
:(.

Thanks,
Shah

On Tue, Mar 22, 2011 at 8:58 PM, Stack <stack@duboce.net> wrote:

> Can you provide more detail on versions and memory sizes.
>
> In general, the JVM grows to occupy the allotted heap so your reports
> below about its using 95% and 99% could be just 'normal' behavior.
>
> When its 'unresponsive', what do the logs say?  What do you mean by
> 'unresponsive'?  DN won't take any load?  Your client can't put any
> data into hbase?
>
> Thanks,
> St>Ack
>
> On Tue, Mar 22, 2011 at 3:41 AM, Shahnawaz Saifi <shahsaifi@gmail.com>
> wrote:
> > Hi,
> >
> > While uploading data to hbase memory usage getting too high (95%). we
> have a
> > cluster of seven nodes (hadoop master namenode, secondary namenode, hbase
> > master node, zookeeper node, slave datanode1, 2,3). Slave data nodes are
> > getting memory usage upto 99% and same time later some of them are
> > unresponsive.
> >
> > --
> > Thanks,
> > Shah
> >
>



-- 
Thanks,
Shah

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