Re: Queries Regarding Cold searcher

2021-01-22 Thread Shawn Heisey
On 1/21/2021 3:42 AM, Parshant Kumar wrote: Do value(true or false) of cold searcher play any role during the completion of replication on slave server.If not please tell in which process in solr its applied? The setting to use a cold searcher applies whenever a new searcher is opened. It

Re: Queries Regarding Cold searcher

2021-01-21 Thread Parshant Kumar
Adding more queries :- Do value(true or false) of cold searcher play any role during the completion of replication on slave server.If not please tell in which process in solr its applied? On Thu, Jan 21, 2021 at 3:11 PM Parshant Kumar wrote: > Hi all, > > Please help me in below queri

Queries Regarding Cold searcher

2021-01-21 Thread Parshant Kumar
Hi all, Please help me in below queries: 1) what is the impact of making cold searcher false,true? 2)After full replication completion of data on slave server, new searcher is opened or not? 3)If opensearcher is false in autocommit and cold searcher is true , what does this conclude , Is their

Re: cold searcher

2013-09-27 Thread Dmitry Kan
Erick, I actually agree and we are looking into bundling commits into a batch type update with soft-commits serving the batches and hard commit kicking in larger periods of time. In practice, we have already noticed the periodic slow downs in search for exactly same queries before and after commi

Re: cold searcher

2013-09-27 Thread Dmitry Kan
Thanks Shawn, the master-slave setup is something that requires separate study as our update rate is more of bulk type than small incremental bits (at least at this point). But thanks, this background information always useful. On Thu, Sep 26, 2013 at 10:52 PM, Shawn Heisey wrote: > On 9/26/201

Re: cold searcher

2013-09-26 Thread Erick Erickson
Upping the number of concurrent warming searchers is almost always the wrong thing to do. I'd lengthen the polling interval or the commit interval. Throwing away warming searchers is uselessly consuming resources. And if you're trying to do any filter queries, your caches will almost never be used

Re: cold searcher

2013-09-26 Thread Shawn Heisey
On 9/26/2013 10:56 AM, Dmitry Kan wrote: Btw, related to master-slave setup. What makes read-only slave not to come across the same issue? Would it not pull data from the master and warm up searchers? Or does it do updates in a more controlled fashion that makes it avoid these issues? Most peop

Re: cold searcher

2013-09-26 Thread Dmitry Kan
Thanks for following up the question on IRC! All right, your explanation makes it more clear, and now the words "until the *first searcher* is done warming" stand out. Yes, I have noticed commits in a quick succession (related to the other question on stamping core names on log entries I asked).

Re: cold searcher

2013-09-26 Thread Shawn Heisey
On 9/26/2013 6:43 AM, Dmitry Kan wrote: > Can someone please help me understand the comment in solr 4.3.1's > solrconfig.xml: > > > false As I understand it, this only applies to Solr startup or core reload, because that's the only time you'd normally have no registered searchers. The w

cold searcher

2013-09-26 Thread Dmitry Kan
Hello! Can someone please help me understand the comment in solr 4.3.1's solrconfig.xml: false What precisely happens when userColdSearcher is set to true and a request arrives while a searcher is warming up? - Does the state of warming slow down the search performance? Does it affect