On Sat, Jan 2, 2010 at 11:35 PM, Fuad Efendi <f...@efendi.ca> wrote: > I tried... I set APR to improve performance... server is slow while replica; > but "top" shows only 1% of I/O wait... it is probably environment specific;
So you're saying that stock tomcat (non-native APR) was also 10 times slower? > but the same happened in my home-based network, rsync was 10 times faster... > I don't know details of HTTP-replica, it could be base64 or something like > that; RAM-buffer, flush to disk, etc. The HTTP replication is using binary. If you look here, it was benchmarked to be nearly as fast as rsync: http://wiki.apache.org/solr/SolrReplication It does do a fsync to make sure that the files are on disk after downloading, but that shouldn't make too much difference. -Yonik http://www.lucidimagination.com
