RE: Huge discrepancy between QTime and ElapsedTime

2013-08-14 Thread Jean-Sebastien Vachon
Thanks Shawn and Scott for your feedback. It is really appreciated. > -Original Message- > From: Shawn Heisey [mailto:s...@elyograg.org] > Sent: August-14-13 12:39 PM > To: solr-user@lucene.apache.org > Subject: Re: Huge discrepancy between QTime and ElapsedTime > >

Re: Huge discrepancy between QTime and ElapsedTime

2013-08-14 Thread Yonik Seeley
On Wed, Aug 14, 2013 at 12:39 PM, Shawn Heisey wrote: > You also have grouping enabled. From what I understand, that can be slow. > If you turn that off, what happens to your elapsed times? QTime would include that. It includes everything up until the point where the response starts streaming b

Re: Huge discrepancy between QTime and ElapsedTime

2013-08-14 Thread Shawn Heisey
On 8/14/2013 9:09 AM, Jean-Sebastien Vachon wrote: I am running some benchmarks to tune our Solr 4.3 cloud and noticed that while the reported QTime is quite satisfactory (100 ms or so), the elapsed time is quite large (around 5 seconds). The collection contains 12.8M documents and the index

Re: Huge discrepancy between QTime and ElapsedTime

2013-08-14 Thread Scott Lundgren
Jean-Sebastien, We have had similar issues. In our cases, our QTime varied between 100ms and as much as 120s (that's right, 120,000ms). The times were so long that they resulted in timeouts upstream. In our case, we have settled in on the following hypothesis: The actual retrieval time (clock

Huge discrepancy between QTime and ElapsedTime

2013-08-14 Thread Jean-Sebastien Vachon
Hi All, I am running some benchmarks to tune our Solr 4.3 cloud and noticed that while the reported QTime is quite satisfactory (100 ms or so), the elapsed time is quite large (around 5 seconds). The collection contains 12.8M documents and the index size on disk is about 35 GB.. I have only on