Heap Out of Memory Error

["av_work@yahoo.com" <av...@yahoo.com>]

Hi,

I am running Solr within the Jetty using start.jar. I am indexing about 200,000 documents. Sometimes out of the blue, the Solr instance cannot process any more requests and returns "heap out of memory" error.

This happens more often when I issue queries against the index that is being updated.

Is there some configuration setting I need to change?

Also, the server itself has plenty of RAM even when this error appears. So it appears Java is running out of its heap memory while there is still enough of RAM available for other processes.

Thanks,
Av


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RE: Heap Out of Memory Error

[Daniel Pitts <Da...@cnet.com>]

> -----Original Message-----
> From: av_work@yahoo.com [mailto:av_work@yahoo.com] 
> Sent: Tuesday, May 22, 2007 12:31 PM
>
> Hi,
> 
> I am running Solr within the Jetty using start.jar. I am 
> indexing about 200,000 documents. Sometimes out of the blue, 
> the Solr instance cannot process any more requests and 
> returns "heap out of memory" error.
> 
> This happens more often when I issue queries against the 
> index that is being updated.
> 
> Is there some configuration setting I need to change?
> 
> Also, the server itself has plenty of RAM even when this 
> error appears. So it appears Java is running out of its heap 
> memory while there is still enough of RAM available for other 
> processes.
> 
> Thanks,
> Av


This seems like the java heap size is set too low.  Wherever you start
the JVM, you can pass in -Xmx512m -Xms256m. Adjusting the values as
necessary.