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HBase, mail # user - heap memory running

prakash kadel 2013-06-19, 13:17
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Re: heap memory running
Jean-Daniel Cryans 2013-06-21, 21:30
24GB is often cited as an upper limit, but YMMV.

It also depends if you need memory for MapReduce, if you are using it.


On Wed, Jun 19, 2013 at 3:17 PM, prakash kadel <[EMAIL PROTECTED]> wrote:
> hi every one,
> i am quite new to base and java. I have a few questions.
> 1. on the web ui for hbase i have the following entry in the region server
> mining,60020,13711358624Fri Jun 14 00:04:22 GMT 2013requestsPerSecond=0,
> numberOfOnlineRegions=106, usedHeapMB=5577, maxHeapMB=7933
> when the hbase is idle with no requests the usedHeapMB hovers around
> 5000MB, shouldn't it go down after some idle time? what is occupying the
> heap when no requests are being made?
> 2. I have assigned 8GB for heap on a 48GB machine, i dont mind assigning
> more of it to hbase.
>     What is the recommended size for the heap?
> Sincerely,
> Prakash
Jean-Marc Spaggiari 2013-06-22, 02:06