Thank you, Bram.
George Kozak
Digital Library Specialist
Cornell University Library Information Technologies (CUL-IT)
501 Olin Library
Cornell University
Ithaca, NY 14853
607-255-8924
From: [email protected] [mailto:[email protected]] On Behalf Of Bram Luyten
Sent: Thursday, December 16, 2010 12:23 PM
To: George Stanley Kozak
Cc: Jason Stirnaman; [email protected]
Subject: Re: [Dspace-tech] Problem with SOLR Statistics
Some info regarding this topic is also available here:
http://atmire.com/statistics_performance.php
Not sure how much overlap there is with the wiki materials.
best regards,
Bram Luyten
@mire
Technologielaan 9 - Heverlee 3001 - Belgium
2888 Loker Avenue East, Suite 305 - Carlsbad, CA 92010 - USA
atmire.com<http://atmire.com/> - Institutional Repository Solutions
On Wed, Dec 15, 2010 at 8:19 PM, George Stanley Kozak
<[email protected]<mailto:[email protected]>> wrote:
Thank you, Jason. I will take a look at those wiki suggestions.
George Kozak
Digital Library Specialist
Cornell University Library Information Technologies (CUL-IT)
501 Olin Library
Cornell University
Ithaca, NY 14853
607-255-8924
From: Jason Stirnaman [mailto:[email protected]<mailto:[email protected]>]
Sent: Wednesday, December 15, 2010 2:01 PM
To: [email protected]<mailto:[email protected]>
Subject: Re: [Dspace-tech] Problem with SOLR Statistics
This is a frequent problem with Solr. Like Peter says, you may need to learn a
bit about tuning Solr in your environment and slowing down your commits. You
may also want to allocate more RAM to Solr if possible. See the Solr wiki
http://wiki.apache.org/solr/FAQ#What_does_.22exceeded_limit_of_maxWarmingSearchers.3DX.22_mean.3F
Jason Stirnaman
Biomedical Librarian, Digital Projects
A.R. Dykes Library, University of Kansas Medical Center
[email protected]<mailto:[email protected]>
913-588-7319
>>> On 12/15/2010 at 12:52 PM, in message
>>> <[email protected]<mailto:[email protected]>>,
>>> Peter Dietz <[email protected]<mailto:[email protected]>> wrote:
Hi George,
This has come up on the
lists<http://www.mail-archive.com/[email protected]/msg10744.html>,
the default setting that was shipped 1.6 with wasn't ideal as it had a
tendency to bog down the system under medium usage. This has been fixed in 1.7,
but in the meantime, there are some steps you can do to fix your system.
Switch to use SOLR autoCommit. Which writes data to solr once per 10 minutes,
as opposed to a new write after every millisecond there is activity.
http://atmire.com/statistics_performance
Solr optimize. Run daily maintenance on your solr index so that it remains
performant.
https://jira.duraspace.org/browse/DS-615
--
Peter Dietz
Systems Developer/Engineer
Ohio State University Libraries
On Wed, Dec 15, 2010 at 6:22 AM, George Stanley Kozak
<[email protected]<mailto:[email protected]>> wrote:
Hi...
I was made aware of a problem with the SOLR stats. If someone clicks on the
View Statistics button for an item, they cannot get to the statistics. The
Browser just hangs.
In the logs I see:
ERROR org.dspace.statistics.SolrLogger @ Error opening new searcher. exceeded
limit of maxWarmingSearchers=2, try again later.
Error opening new searcher. exceeded limit of maxWarmingSearchers=2, try again
later.
Has anyone else seen this and does anyone have any suggestions?
For the time being, I have limited the stats to the Admins.
George Kozak
Digital Library Specialist
Division of Library Information Technologies (DLIT)
501 Olin Library
Cornell University
Ithaca, NY 14853
607-255-8924
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