lucene-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Jan Høydahl (JIRA) <j...@apache.org>
Subject [jira] [Commented] (SOLR-2356) indexing using DataImportHandler does not use entire CPU capacities
Date Thu, 25 Apr 2013 21:08:18 GMT

    [ https://issues.apache.org/jira/browse/SOLR-2356?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13642219#comment-13642219
] 

Jan Høydahl commented on SOLR-2356:
-----------------------------------

In my opinion, DIH should be completely redesigned as a standalone webapp. It is a major design
flaw that it is a RequestHandler within a Solr Core/collection.

As a standalone web app it could easily be deplyed on its own, talk to multiple collections
and be parallellized.
                
> indexing using DataImportHandler does not use entire CPU capacities
> -------------------------------------------------------------------
>
>                 Key: SOLR-2356
>                 URL: https://issues.apache.org/jira/browse/SOLR-2356
>             Project: Solr
>          Issue Type: Improvement
>          Components: update
>    Affects Versions: 4.0-ALPHA
>         Environment: intel xeon processor (4 cores), Debian Linux Lenny, OpenJDK 64bits
server v1.6.0
>            Reporter: colby
>            Priority: Minor
>              Labels: test
>   Original Estimate: 168h
>  Remaining Estimate: 168h
>
> When I use a DataImportHandler to index a large number of documents (~35M), cpu usage
doesn't go over than 100% cpu (i.e. just one core).
> When I configure 4 threads for the <entity> tag, the cpu usage is splitted to 25%
per core but never use 400% of cpu (i.e 100% of the 4 cores)
> I use solr embedded with jetty server.
> Is there a way to tune this feature in order to use all cores and improve indexing performances
?
> Because for the moment, an extra script (PHP) gives better indexing performances than
DIH.
> thanks

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira

---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscribe@lucene.apache.org
For additional commands, e-mail: dev-help@lucene.apache.org


Mime
View raw message