Hi
Can you quickly explain what you did to disable INFO-Level?
I am from a PHP background and am not so well versed in Tomcat or
Java. Is this a section in solrconfig.xml or did you have to edit
Solr Java source and recompile?
Thanks In Advance
Andrew
2009/12/20 Fuad Efendi <f...@efendi.ca>:
> After researching how to configure default SOLR & Tomcat logging, I finally
> disabled INFO-level for SOLR.
>
> And performance improved at least 7 times!!! ('at least 7' because I
> restarted server 5 minutes ago; caches are not prepopulated yet)
>
> Before that, I had 300-600 ms in HTTPD log files in average, and 4%-8% I/O
> wait whenever "top" commands shows SOLR on top.
>
> Now, I have 50ms-100ms in average (total response time logged by HTTPD).
>
>
> P.S.
> Of course, I am limited in RAM, and I use slow SATA... server is moderately
> loaded, 5-10 requests per second.
>
>
> P.P.S.
> And suddenly synchronous I/O by Java/Tomcat Logger slows down performance
> much higher than read-only I/O of Lucene.
>
>
>
> Fuad Efendi
> +1 416-993-2060
> http://www.linkedin.com/in/liferay
>
> Tokenizer Inc.
> http://www.tokenizer.ca/
> Data Mining, Vertical Search
>
>
>
>
>
