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From Doug Meil <doug.m...@explorysmedical.com>
Subject Re: Multiple regionservers on a single node
Date Mon, 03 Dec 2012 22:13:27 GMT

Hi there, 

Not tried multi-RS on a single node, but have you looked at the off-heap
cache?  It's a part of 0.92.x.  From what I understand that feature was
designed with this case in mind (I.e., trying to do a lot of caching, but
don't want to introduce GC issues in RS).

https://issues.apache.org/jira/browse/HBASE-4027



On 12/3/12 4:39 PM, "Ishan Chhabra" <ichhabra@rocketfuel.com> wrote:

>Hi,
>Has anybody tried to run multiple RegionServers on a single physical
>node? Are there deep technical issues or minor impediments that would
>hinder this?
>
>We are trying to do this because we are facing a lot of GC pauses on the
>large heap sizes (~70G) that we are using, which leads to a lot of
>timeouts
>in our latency critical application. More processes with smaller heaps
>would help in mitigating this issue.
>
>Any experience or thoughts on this would help.
>Thanks!
>
>-- 
>*Ishan Chhabra *| Rocket Scientist | Rocketfuel Inc. | *m *650 556 6803



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