How much RAM in the box total? How many sort fields and what types?
Sorts on each core?
Willie Wong wrote:
Hello,
I've been having issues with out of memory errors on searches in Solr. I
was wondering if I'm hitting a limit with solr or if I've configured
something seriously wrong.
Solr Setup
- 3 cores
- 3163615 documents each
- 10 GB size
- approx 10 fields
- document sizes vary from a few kb to a few MB
- no faceting is used however the search query can be fairly complex with
8 or more fields being searched on at once
Environment:
- windows 2003
- 2.8 GHz zeon processor
- 1.5 GB memory assigned to solr
- Jetty 6 server
Once we get to around a few concurrent users OOM start occuring and Jetty
restarts. Would this just be a case of more memory or are there certain
configuration settings that need to be set? We're using an out of the box
Solr 1.3 beta version.
A few of the things we considered that might help:
- Removing sorts on the result sets (result sets are approx 40,000 +
documents)
- Reducing cache sizes such as the queryResultMaxDocsCached setting,
document cache, queryResultCache, filterCache, etc
Am I missing anything else that should be looked at, or is it time to
simply increase the memory/start looking at distributing the indexes? Any
help would be much appreciated.
Regards,
WW
