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From Ted Yu <yuzhih...@gmail.com>
Subject Re: hprof from RS which encountered OOME
Date Thu, 12 Aug 2010 18:33:10 GMT
There were 20 handlers running.

I have seen the fix for HBASE-900

On Thu, Aug 12, 2010 at 11:23 AM, Stack <stack@duboce.net> wrote:

> Handler is only carrying what the client gave it.  It holds it just
> long enough to pass it into the server (or out).  So, can you see what
> the data is?  Is it a big cell?  How many handlers do you have
> running?  If 100 handlers and each is carrying a 50MB cell then thats
> 5G.  Is that whats going on?  There was also an old issue where rpc
> would hold the ghost of the largest byte array it had ever carried but
> that should be fixed in your  hbase Ted.
> St.Ack
>
> On Thu, Aug 12, 2010 at 11:09 AM, Ted Yu <yuzhihong@gmail.com> wrote:
> > From the snapshot, we can see that HBaseServer$Handler's had the highest
> > retained size.
> > Can we make HBaseServer$Handler aware of the memory pressure of the
> > RegionServer so that OOME can be avoided ?
> >
> > Cheers
> >
> > On Wed, Aug 11, 2010 at 1:19 PM, Ted Yu <tyu@carrieriq.com> wrote:
> >
> >> See if this is more helpful:
> >>
> >
>

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