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From Moshe Recanati <>
Subject RE: Stop solr query
Date Wed, 25 Feb 2015 12:21:28 GMT
Hi Shawn,
We checked this option and it didn't solve our problem.
We're using for query based synonyms.
While running query with high number of words that have high number of synonyms the query
got stuck and solr memory is exhausted.
We tried to use this parameter suggested by you however it didn't stop the query and solve
the issue.

Please let me know if there is other option to tackle it. Today it might be high number of
words that cause the issue and tomorrow it might be other something wrong. We can't rely only
on user input check.

Thank you in advance.

Moshe Recanati
SVP Engineering
Office + 972-73-2617564
Mobile  + 972-52-6194481
Skype    :  recanati

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-----Original Message-----
From: Shawn Heisey [] 
Sent: Monday, February 23, 2015 5:49 PM
Subject: Re: Stop solr query

On 2/23/2015 7:23 AM, Moshe Recanati wrote:
> Recently there were some scenarios in which queries that user sent to 
> solr got stuck and increased our solr heap.
> Is there any option to kill or timeout query that wasn't returned from 
> solr by external command?

The best thing you can do is examine all user input and stop such queries before they execute,
especially if they are the kind of query that will cause your heap to grow out of control.

The "timeAllowed" parameter can abort a query that takes too long in certain phases of the
query.  In recent months, Solr has been modified so that timeAllowed will take effect during
more query phases.  It is not a perfect solution, but it can be better than nothing.

Be aware that sometimes legitimate queries will be slow, and using timeAllowed may cause those
queries to fail.


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