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From Walter Underwood <>
Subject Re: Email Search Slow
Date Fri, 01 Mar 2013 18:54:23 GMT
Don't use wildcards. A leading wildcard matches against every token in the index. This is the
search equivalent of a full table scan in a relational database.

Instead, create a field type that tokenizes e-mail addresses into pieces, then use phrase
search against that.

The address "" might be tokenized into "fred", "@", "yahoo", "com".


On Mar 1, 2013, at 10:49 AM, girish.gopal wrote:

> Thanks Jack. The search is slow only when it is issued for the first time. 
> Ex. querying for *@gmail* takes 20+ seconds for the first time; when I
> re-issue the same search, then it returns pretty quick(Possibly reading out
> of cache). 
> But when I issue a new search *@yahoo.* then this too takes about 20+ secs
> before returning with results. Basically I seem to have a problem when a new
> search is issued. 
> Is this normal?
> My Specs are:
> Windows Server 2008 64 bit Dual Quad Core CPUs with 64 GB of RAM.
> I have allocated 55GB of memory to Tomcat in its config.
> I will check on the Heap.
> Regards,
> Giri
> --
> View this message in context:
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