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From Shawn Heisey <>
Subject Re: Periodic Slowness on Solr Cloud
Date Fri, 22 Nov 2013 17:09:55 GMT
On 11/22/2013 10:01 AM, Shawn Heisey wrote:
> You can see how much the max heap is in the Solr admin UI dashboard - 
> it'll be the right-most number on the JVM-Memory graph.  On my 64-bit 
> linux development machine with 16GB of RAM, it looks like Java 
> defaults to a 4GB max heap.  I have the heap size manually set to 7GB 
> for Solr on that machine.  The 6GB heap you have mentioned might not 
> be enough, or it might be more than you need.  It all depends on the 
> kind of queries you are doing and exactly how Solr is configured.

Followup: I would also recommend starting with my garbage collection 
settings.  This wiki page is linked on the wiki page I've already given you.

You might need a script to start Solr.  There is also a redhat-specific 
init script on that wiki page.  I haven't included any instructions for 
installing it.  Someone who already knows about init scripts won't have 
much trouble getting it working on a redhat-derived OS, and someone who 
doesn't will need extensive instructions or an install script, neither 
of which has been written.


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