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.
I am using mergeFactor=100 etc (I already posted message...) So that... I can't see hardware is a problem: with more CPU and faster RAID-0 I'll get the same numbers, 5:1. Why?.. I'll try with better hardware anyway... during segment merge everything stops in SOLR although I am (in theory) using ConcurrentMergeScheduler with Java 6. Having mergeFactor=100000 and doing "commit" only once a year (and waiting a week(s) till it merge/commit/optimize)???
