NRT and multi-value facet - what is Solr's limit?

[Andy <an...@yahoo.com>]

Hi,

I understand that the cache for multi-value facet is multi-segment. So every time a document is updated the entire cache needs to be rebuilt.

Is there any rule of thumb on the highest update rate NRT can handle before this cache-rebuild-on-each-commit becomes too expensive? I know it depends, but I'm just looking for order-of-magnitude estimates. Are we talking about 10 updates/s? 100? 1,000?

Thanks

Re: NRT and multi-value facet - what is Solr's limit?

[ka...@gmx.de]

Hi Andy,

as long as the cache for facetting is not per segment there is no NRT together with facetting.

This is what Jason told you in
http://lucene.472066.n3.nabble.com/Nrt-and-caching-td3993612.html
and I am agree.

Possible you could use multicore.

Beste regards
   Karsten

-------- Original-Nachricht --------
> Datum: Thu, 12 Jul 2012 03:18:47 -0700 (PDT)
> Von: Andy <an...@yahoo.com>
> An: "solr-user@lucene.apache.org" <so...@lucene.apache.org>
> Betreff: NRT and multi-value facet  - what is Solr\'s limit?

> Hi,
> 
> I understand that the cache for multi-value facet is multi-segment. So
> every time a document is updated the entire cache needs to be rebuilt.
> 
> Is there any rule of thumb on the highest update rate NRT can handle
> before this cache-rebuild-on-each-commit becomes too expensive? I know it
> depends, but I'm just looking for order-of-magnitude estimates. Are we talking
> about 10 updates/s? 100? 1,000?
> 
> Thanks