Re: performance crossover between single index and sharding

2011-08-04 Thread Shawn Heisey
On 8/4/2011 12:38 AM, Bernd Fehling wrote: Hi Shawn, the 0.05 seconds for search time at peek times (3 qps) is my target for Solr. The numbers for solr are from Solr's statistic report page. So 39.5 seconds average per request is definately to long and I have to change to sharding. Solr rep

Re: performance crossover between single index and sharding

2011-08-04 Thread Bernd Fehling
solr-user@lucene.apache.org Subject: Re: performance crossover between single index and sharding Hi Shawn, the 0.05 seconds for search time at peek times (3 qps) is my target for Solr. The numbers for solr are from Solr's statistic report page. So 39.5 seconds average per request is definately to

RE: performance crossover between single index and sharding

2011-08-04 Thread Bob Sandiford
> Sent: Thursday, August 04, 2011 2:39 AM > To: solr-user@lucene.apache.org > Subject: Re: performance crossover between single index and sharding > > Hi Shawn, > > the 0.05 seconds for search time at peek times (3 qps) is my target for > Solr. > The numbers for solr are

Re: performance crossover between single index and sharding

2011-08-04 Thread Peter Keegan
age- > From: Markus Jelsma [mailto:markus.jel...@openindex.io] > Sent: Tuesday, August 02, 2011 2:12 PM > To: solr-user@lucene.apache.org > Subject: Re: performance crossover between single index and sharding > > Hi Tom, > > Very interesting indeed! But i keep wondering wh

Re: performance crossover between single index and sharding

2011-08-03 Thread Bernd Fehling
Hi Shawn, the 0.05 seconds for search time at peek times (3 qps) is my target for Solr. The numbers for solr are from Solr's statistic report page. So 39.5 seconds average per request is definately to long and I have to change to sharding. For FAST system the numbers for the search dispatcher ar

Re: performance crossover between single index and sharding

2011-08-03 Thread Shawn Heisey
Replies inline. On 8/3/2011 2:24 AM, Bernd Fehling wrote: To show that I compare apples and oranges here are my previous FAST Search setup: - one master server (controlling, logging, search dispatcher) - six index server (4.25 mio docs per server, 5 slices per index) (searching and indexing a

Re: performance crossover between single index and sharding

2011-08-03 Thread Dmitry Kan
OK, here is a brief on our sharded setup. We have 10 shards, 3 per high-end Amazon machine. Majority of the searches are done on 2 shards at most, that have the latest data in their indices. We use logical sharding, not hash based. These two lead to a situation, where given a user query that *will

Re: performance crossover between single index and sharding

2011-08-03 Thread Bernd Fehling
On 02.08.2011 21:00, Shawn Heisey wrote: ... I did try some early tests with a single large index. Performance was pretty decent once it got warmed up, but I was worried about how it would perform under a heavy load, and how it would cope with frequent updates. I never really got very far with

Re: performance crossover between single index and sharding

2011-08-02 Thread Shawn Heisey
On 8/2/2011 12:06 PM, Jonathan Rochkind wrote: What's the reasoning behind having three shards on one machine, instead of just combining those into one shard? Just curious. I had been thinking the point of shards was to get them on different machines, and there'd be no reason to have multiple

Re: performance crossover between single index and sharding

2011-08-02 Thread Ken Krugler
ust.org/blogs/large-scale-search/scaling-large-scale-search-500000-volumes-5-million-volumes-and-beyond >> >> -Original Message- >> From: Markus Jelsma [mailto:markus.jel...@openindex.io] >> Sent: Tuesday, August 02, 2011 12:33 PM >> To: solr-user@lucene.apache.org &g

RE: performance crossover between single index and sharding

2011-08-02 Thread Burton-West, Tom
justify buying 8 more machines:) Tom -Original Message- From: Markus Jelsma [mailto:markus.jel...@openindex.io] Sent: Tuesday, August 02, 2011 2:12 PM To: solr-user@lucene.apache.org Subject: Re: performance crossover between single index and sharding Hi Tom, Very interesting indeed! But

Re: performance crossover between single index and sharding

2011-08-02 Thread Markus Jelsma
-search > > * > http://www.hathitrust.org/blogs/large-scale-search/scaling-large-scale-sea > rch-50-volumes-5-million-volumes-and-beyond > > -Original Message- > From: Markus Jelsma [mailto:markus.jel...@openindex.io] > Sent: Tuesday, August 02, 2011 12:33 PM &

Re: performance crossover between single index and sharding

2011-08-02 Thread Jonathan Rochkind
ale-search-50-volumes-5-million-volumes-and-beyond -Original Message- From: Markus Jelsma [mailto:markus.jel...@openindex.io] Sent: Tuesday, August 02, 2011 12:33 PM To: solr-user@lucene.apache.org Subject: Re: performance crossover between single index and sharding Actually, i do worr

RE: performance crossover between single index and sharding

2011-08-02 Thread Burton-West, Tom
-million-volumes-and-beyond -Original Message- From: Markus Jelsma [mailto:markus.jel...@openindex.io] Sent: Tuesday, August 02, 2011 12:33 PM To: solr-user@lucene.apache.org Subject: Re: performance crossover between single index and sharding Actually, i do worry about it. Would be

Re: performance crossover between single index and sharding

2011-08-02 Thread Markus Jelsma
Actually, i do worry about it. Would be marvelous if someone could provide some metrics for an index of many terabytes. > [..] At some extreme point there will be diminishing > returns and a performance decrease, but I wouldn't worry about that at all > until you've got many terabytes -- I don't

Re: performance crossover between single index and sharding

2011-08-02 Thread David Smiley (@MITRE.org)
terabytes -- I don't know how many but don't worry about it. ~ David - Author: https://www.packtpub.com/solr-1-4-enterprise-search-server/book -- View this message in context: http://lucene.472066.n3.nabble.com/performance-crossover-between-single-index-and-sharding-tp3218561p321939

Re: performance crossover between single index and sharding

2011-08-02 Thread Shawn Heisey
On 8/2/2011 4:44 AM, Bernd Fehling wrote: Is there any knowledge on this list about the performance crossover between a single index and sharding and when to change from a single index to sharding? E.g. if index size is larger than 150GB and num of docs is more than 25 mio. then it is better to

performance crossover between single index and sharding

2011-08-02 Thread Bernd Fehling
Is there any knowledge on this list about the performance crossover between a single index and sharding and when to change from a single index to sharding? E.g. if index size is larger than 150GB and num of docs is more than 25 mio. then it is better to change from single index to sharding and ha