Never tried profiling; 3000-5000 docs per second if SOLR is not busy with segment merge;
During segment merge 99% CPU, no disk swap; I can't suspect I/O... During document updates (small batches 100-1000 docs) only 5-15% CPU -server 2048Gb option of JVM (which is JRockit) + 256M for RAM Buffer I can't suspect garbage collection... I'll try to do the same with much better hardware tomorrow (2 quad-core instead of single double-core, SCSI RAID0 instead of single SAS, 16Gb for Tomcat instead of current 2Gb) but constant rate 5:1 is very suspicious... -----Original Message----- From: Grant Ingersoll Sent: August-11-09 5:01 PM Have you tried profiling? How often are you committing? Have you looked at Garbage Collection or any of the usual suspects like that? On Aug 11, 2009, at 4:49 PM, Fuad Efendi wrote: > In a heavily loaded Write-only Master SOLR, I have 5 minutes of RAM > Buffer > Flash / Segment Merge per 1 minute of (heavy) batch document updates. Define heavy. How many docs per second?