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Posted to solr-user@lucene.apache.org by Prasi S <pr...@gmail.com> on 2013/11/27 07:15:43 UTC
Solr Autowarmed queries on jvm crash
Hi,
What happens to the autowarmed queries if the servers is shutdown / jvm
crashes.
Is there any possibility to recover that from the physical storage (
trasaction log?)
Thanks,
Sinduja
Re: Solr Autowarmed queries on jvm crash
Posted by "michael.boom" <my...@yahoo.com>.
As Shawn stated above, when you start up Solr there will be no such thing as
caches or old searchers.
If you want to warm up, you can only rely on firstSearcher and newSearcher
queries.
/"What would happen to the autowarmed queries , cache , old searcher now ?"/
They're all gone.
-----
Thanks,
Michael
--
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Re: Solr Autowarmed queries on jvm crash
Posted by Prasi S <pr...@gmail.com>.
Ok. i have started solr for the first time and have autowarmed few queries.
Now my jvm crashes due to some other reason . Then i restart solr. What
would happen to the autowarmed queries , cache , old searcher now.
Thanks,
Prasi
On Wed, Nov 27, 2013 at 12:32 PM, Shawn Heisey <so...@elyograg.org> wrote:
> On 11/26/2013 11:49 PM, Prasi S wrote:
> > Thanks Shawn for the reply.
> >
> > In that case, when the system is restarted, a new searcher would be
> opened?
> > It cannot populate from its previous searchers?
> >
> > I may be wrong here, but i wanted to confirm.
>
> There are no previous searchers when Solr first starts up. At startup,
> any queries defined as part of the firstSearcher event are executed.
> Each time a new searcher is created, any queries defined as part of the
> newSearcher event are executed.
>
> Thanks,
> Shawn
>
>
Re: Solr Autowarmed queries on jvm crash
Posted by Shawn Heisey <so...@elyograg.org>.
On 11/26/2013 11:49 PM, Prasi S wrote:
> Thanks Shawn for the reply.
>
> In that case, when the system is restarted, a new searcher would be opened?
> It cannot populate from its previous searchers?
>
> I may be wrong here, but i wanted to confirm.
There are no previous searchers when Solr first starts up. At startup,
any queries defined as part of the firstSearcher event are executed.
Each time a new searcher is created, any queries defined as part of the
newSearcher event are executed.
Thanks,
Shawn
Re: Solr Autowarmed queries on jvm crash
Posted by Prasi S <pr...@gmail.com>.
Thanks Shawn for the reply.
In that case, when the system is restarted, a new searcher would be opened?
It cannot populate from its previous searchers?
I may be wrong here, but i wanted to confirm.
Thanks,
Prasi
On Wed, Nov 27, 2013 at 12:04 PM, Shawn Heisey <so...@elyograg.org> wrote:
> On 11/26/2013 11:15 PM, Prasi S wrote:
> > What happens to the autowarmed queries if the servers is shutdown / jvm
> > crashes.
> >
> > Is there any possibility to recover that from the physical storage (
> > trasaction log?)
>
> The transaction log only contains data that is sent to Solr for
> indexing. Cached query data is lost when the program exits, so it
> cannot be used for autowarming. If the logs are set to at least INFO
> severity, they will contain a query history, but Solr doesn't have any
> way to pull those back out of the logfile and re-use them.
>
> If firstSearcher and/or newSearcher warming queries are defined in
> solrconfig.xml, then those will be re-done when Solr starts back up.
>
> Thanks,
> Shawn
>
>
Re: Solr Autowarmed queries on jvm crash
Posted by Shawn Heisey <so...@elyograg.org>.
On 11/26/2013 11:15 PM, Prasi S wrote:
> What happens to the autowarmed queries if the servers is shutdown / jvm
> crashes.
>
> Is there any possibility to recover that from the physical storage (
> trasaction log?)
The transaction log only contains data that is sent to Solr for
indexing. Cached query data is lost when the program exits, so it
cannot be used for autowarming. If the logs are set to at least INFO
severity, they will contain a query history, but Solr doesn't have any
way to pull those back out of the logfile and re-use them.
If firstSearcher and/or newSearcher warming queries are defined in
solrconfig.xml, then those will be re-done when Solr starts back up.
Thanks,
Shawn