Hi Yonik, Thanks for the reply - could you please give me some more details on what you mean? I was able to obtain a performance boost by distributing Sphinx on the same box, with multiple processors. Each instance of sphinx ran on a different processor, and given that there was a performance boost, it seems like search was cpu bound - at least in that case. I realize that Solr is sufficiently different from Sphinx, so I may not see the same boost, but I'm not sure I understand why this is the case. As is, I may have to stick with sphinx, but I'd really like to move thing over to Solr.
Thanks again, -Harish yonik wrote: > > Distributed search requires more work (more than one pass.) If you > weren't CPU bound to begin with, it's definitely going to make things > worse by splitting up the index on the same box. > > -Yonik > > On Thu, Jan 8, 2009 at 3:53 PM, smock <harish.agar...@gmail.com> wrote: >> >> Hi All, >> >> I'm very new to Solr, and also fairly new Java and servlet containers, >> etc. >> I'm trying to set up Solr on a single machine with a distributed index. >> My >> current implementation uses Tomcat as a servlet container with multiple >> instances of Solr being served. Each instance of Solr is a shard of my >> index. I have two shards as I'm running this setup on a dual processor >> machine. >> >> I'm benchmarking this setup and would expect that, given the two >> processors, >> search times for one shard would be roughly the same as search times >> across >> both. However, I'm finding that search times are about double when >> searching across both shards, which seems to indicate that both >> processors >> are not being used efficiently. >> >> Does anyone have any advice on what I might be doing wrong? Spreading >> things across different machines is not an option. Both indexes are >> being >> run off of the same disk, but this was also the case with my prior >> distributed search solution (using sphinx) in which I did see the >> expected >> performance boost. >> >> Thanks, >> -Harish >> -- >> View this message in context: >> http://www.nabble.com/Solr-on-a-multiprocessor-machine-tp21360747p21360747.html >> Sent from the Solr - User mailing list archive at Nabble.com. >> >> > > -- View this message in context: http://www.nabble.com/Solr-on-a-multiprocessor-machine-tp21360747p21361721.html Sent from the Solr - User mailing list archive at Nabble.com.
