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From Marcel Reutegger <marcel.reuteg...@gmx.net>
Subject Re: Help with SearchIndex parameters
Date Wed, 06 Feb 2008 08:18:12 GMT
Sridhar Raman wrote:
> I am too sure whether the problem we are facing can be solved by tweaking
> around with the SearchIndex parameters, but I want to give it a shot.  The
> gist of the problem we are facing is that our importing of nodes is very
> very slow.

how is your content structured? how many properties do your nodes have on 
average. are they any binary properties?

> We have around 25000 nodes that are being imported, and then being committed
> by a single session.save().  This particular operation takes a long time.
> The index folder showed no activity for almost an hour, before it began to
> begin creating the indexes.  Could this be because of some faulty
> SearchIndex parameters?  I haven't changed the parameters from the default
> values.

no, I don't think so. nodes are only indexed on commit time. in a first step the 
nodes are stored using the configured persistence manager and in a second step 
indexed by the query handler.

> Also, would the import process be faster if I did the save() in multiple
> steps?

yes, most probably. Because Jackrabbit stores any pending modification in 
memory, the heap is probably used up and the GC runs very often in your import. 
try saving after 1000 nodes.


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