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From pkrishna <prabhakar.krishnasw...@ge.com>
Subject XPath query against a remote database is very slow
Date Fri, 10 Apr 2009 22:36:55 GMT

I have been testing the performance of the following XPATH query

 String query = "//element(*, " +
                    + ")[" + getXPathQuery(ctx, metadata) + "]";

where method getXPathQuery translates to a certain set of  attributes. We
have 2 configurations pointed to by two different repository.xmls. One of
them points to a local database (database on the samebox where the test is
executing) and another one a remote database. When I test against a local
database I am able to retrieve more than 2000 nodes within 300~500ms. But
when I test against a remote database the same query takes about 7000ms to
retrieve 4 nodes. I do agree there could a some network latency but the
difference in times seems to reflect some other issues. Here are the
parameters we use for SearchIndex (repository.xml):

		<SearchIndex class="org.apache.jackrabbit.core.query.lucene.SearchIndex">

<!--  -->


Any ideas\help on the cause of this problem would be appreciated.

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