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Posted to commits@lucene.apache.org by Apache Wiki <wi...@apache.org> on 2016/07/13 15:54:32 UTC

[Solr Wiki] Update of "SolrPerformanceProblems" by ShawnHeisey

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The "SolrPerformanceProblems" page has been changed by ShawnHeisey:
https://wiki.apache.org/solr/SolrPerformanceProblems?action=diff&rev1=62&rev2=63

Comment:
Remove heliosearch from the list of ways to reduce heap.  Last I knew, the project is dead.

   * Reduce RAMBufferSizeMB.  The default in recent Solr versions is 100.
    * This value can be particularly important if you have a lot of cores, because a buffer will be used for each core.
   * Don't use RAMDirectoryFactory - instead, use the default and install enough system RAM so the OS can cache your entire index as [[SolrPerformanceProblems#OS_Disk_Cache|discussed above]].
-  * Try [[http://heliosearch.org|Heliosearch]], a Solr fork that features [[http://heliosearch.org/off-heap-filters/|Off-Heap Filters]] and an [[http://heliosearch.org/solr-off-heap-fieldcache/|Off-Heap FieldCache]]
  
  ==== GC pause problems ====