On Sun, Jan 3, 2010 at 2:55 PM, Peter Wolanin <peter.wola...@acquia.com> wrote: > Related to the difference between rsync and native Solr replication - > we are seeing issues with Solr 1.4 where search queries that come in > during a replication request hang for excessive amount of time (up to > 100's of seconds for a result normally that takes ~50 ms). > > We are replicating pretty often (every 90 sec for multiple cores to > one slave server), but still did not think that replication would make > the master server unable to handle search requests. Is there some > configuration option we are missing which would handle this situation > better?
Hmmm, any other clues about what's happening during this time? If it's not a bug, it could simply be that reading a large index to serve it to a slave could throw out the important parts of the OS cache that caused searches to be faster. If it is a bug, well then we certainly want to get to the bottom of it! -Yonik http://www.lucidimagination.com