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From tsuna <tsuna...@gmail.com>
Subject Re: Heap fragmentation
Date Fri, 21 Jan 2011 04:19:12 GMT
On Thu, Jan 20, 2011 at 2:58 PM, Todd Lipcon <todd@cloudera.com> wrote:
> On Thu, Jan 20, 2011 at 2:52 PM, tsuna <tsunanet@gmail.com> wrote:
>
>> On Thu, Jan 20, 2011 at 9:33 AM, Todd Lipcon <todd@cloudera.com> wrote:
>> > I did some experiments to understand our full GC issues better last
>> night.
>> > Here are the results:
>> > http://people.apache.org/~todd/hbase-fragmentation/
>>
>> Just curious: what hardware configuration was used during this test?
>>
>
> 24G RAM, 6HDD @ 7200RPM, 8 cores (16 with HT), E5540@2.53GHz

Why do you use 200 handler threads?  Isn't that excessive?  Is it
possible to ask a RegionServer how many handler threads are actively
serving a request at any given point in time?

-- 
Benoit "tsuna" Sigoure
Software Engineer @ www.StumbleUpon.com

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