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From Jean-Daniel Cryans <jdcry...@apache.org>
Subject Re: Advice sought for mixed hardware installation
Date Thu, 14 Oct 2010 18:07:17 GMT
> I had it in my mind that HBase liked big memory, hence assuming the
> region servers should stay on the 24G machines with plenty of memory
> at their  disposal.  We'll come up with a test platform and then try
> some benchmarking and do a blog on it all and share.
>

They do, but because of JVM limitations the recommended setting is
around 4-8GB. Giving more would cause bigger heap fragmentation
issues, leading to full GC pauses, which could cause session timeouts.

J-D

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