Francis Yakin wrote:
Ok Thanks Koji!

We have a test machine that currently running 1.3.0, I see the 
<queryResultMaxDocsCached>200</queryResultMaxDocsCached>

This set to "200" by default, should I increase it, if yes what should I set to?

Francis,

It depends. To know what the parameter is, please see:

https://issues.apache.org/jira/browse/SOLR-291

Thank you,

Koji

Regards,

Francis

-----Original Message-----
From: Koji Sekiguchi [mailto:k...@r.email.ne.jp]
Sent: Wednesday, June 17, 2009 8:28 PM
To: solr-user@lucene.apache.org
Subject: Re: OutOfMemory error on solrslaves

Francis Yakin wrote:
We are experiencing "OutOfMemory" error frequently on our slaves, this is the 
error:

SEVERE: Error during auto-warming of 
key:org.apache.solr.search.queryresult...@a8c6f867:java.lang.OutOfMemoryError: 
allocLargeObjectOrArray - Object size: 5120080, Num elements: 1280015
java.lang.OutOfMemoryError: allocLargeObjectOrArray - Object size: 5968, Num 
elements: 2974
java.lang.OutOfMemoryError: allocLargeObjectOrArray - Object size: 3736, Num 
elements: 1859
Exception in thread "DynamicListenThread[Default]" java.lang.OutOfMemoryError: 
allocLargeObjectOrArray - Object size: 8208, Num elements: 8192

We need to bounce our weblogic and solr application when that happened to clear the java 
"OutOfMemory" error.

Some people suggested me to made change on "queryResultCache"

Currently se to:

<queryResultCache
 class="solr.LRUCache"
 size="512"
 initialSize="512"
 autowarmCount="256"/>

So the recommendation is:

<queryResultCache
class="solr.LRUCache"
size="1024"
initialSize="512"
autowarmCount="256"/>


I don't think the change solves your problem... Since the error occured
during auto-warming,
autowarmingCount="0" might help. But...

We are still running solr 1.2.0 version, do you upgrade to higher version will 
also resolve the issue.


Solr 1.3 has queryResultMaxDocsCached parameter in solrconfig.xml.
I'd expect it works for you.

Koji
Any inputs will be much appreciated.

Thanks

Francis







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