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From Fergus McMenemie <>
Subject Re: [solr-user] Upgrade from 1.2 to 1.3 gives 3x slowdown
Date Wed, 15 Apr 2009 20:54:47 GMT
>>> The work being done is addressing the deletes, AIUI, but of course
>>> there are other things happening during shutdown, too.
>> There are no deletes to do. It was a clean index to begin with
>> and there were no duplicates.
>I have not followed this thread, so forgive me if this has already  
>been suggested....
>If you know that there are not any duplicates, have you tried indexing  
>with allowDups=true?
>It will not change the fsync cost, but it may reduce some other  
>checking times.
At last... I understand! This is a biggy that in my case seems
to make a massive difference. I will look for somewhere to add 
the following to the wiki....

 "If you are indexing massive amounts of content and you
  know there are no duplicates then disabling the duplicate 
  checking with allowDups=true can save lots of time"


Fergus McMenemie     
Techmore Ltd                   Phone:(UK) 07721 376021

Unix/Mac/Intranets             Analyst Programmer

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