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From Michael Segel <michael_se...@hotmail.com>
Subject Re: GET performance degrades over time
Date Thu, 16 May 2013 18:46:50 GMT
Going from memory, the swap value setting to 0 is a suggestion. You may still actually swap,
but I think its a 'last resort' type of thing. 

When you look at top, at the top of the page, how much swap do you see? 


On May 16, 2013, at 1:43 PM, Viral Bajaria <viral.bajaria@gmail.com> wrote:

>> Have you checked your HBase environment? I think it perhaps come from:
>> 1) System uses more swap frequently when your continue to execute Gets
>> operation?
>> 
> 
> I have set swap to 0. AFAIK, that's a recommended practice. Let me know if
> that should not be followed for nodes running HBase.
> 
> 
>> 2) check the setting "hfile.block.cache.size" in your hbase-site.xml.
>> 
> 
> It's the default i.e. 0.25


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