Re: [GeoNetwork-users] maxClauseCount Problem

[heikki <tro...@gm...>]

hi Francois,

how about we make sure that a search for "*" internally gets handled
identically to a search for "" ? As the result should be the same anyway.

Kind regards
Heikki Doeleman



2009/8/25 Francois Prunayre <fx....@gm...>

> Hello Jürgen,
>
> 2009/8/24 Jürgen Weichand <jue...@bv...>:
> > I've imported 10.000 Metadata-Files (ISO) to GeoNetwork using the
> > Batch-Import-Function. In version
> > 2.4.1 it works very well to import more than 5000 Metadatasets.
> >
> > Every Metadata has the same prefix like "Testdata" (Title).
> >
> > Now, the following problem occurs:
> > Searching for "" --> Every 10.000 Dataset --> OK!
> > Searching for "Testdata" --> Every 10.000 Datasets --> OK!
> > Searching for "*" --> maxClauseCount is set to 16384 --> ??
> This exception is related to the use of "*" in Lucene query and your
> index content for the queried field more than the number of records.
>
> If you want to search for all, use "" instead of "*" which will be
> much faster ! or even don't set this criteria.
>
> An option could be to change the
> BooleanQuery.setMaxClauseCount(16384);
> in LuceneSearcher.java and CatalogSearcher.java. One suggested change
> could be BooleanQuery.setMaxClauseCount(Integer.MAX_VALUE) but this
> could then trigger out of memory exception and slow search according
> to the search you are making.
>
> Maybe we should at least create a configuration option for this parameter.
>
> HTH.
>
> Francois
>
> > The "*"-char is important for CSW-Requests for example.
> >
> > I want to run GeoNetwork with 100.000 to 200.000 Datasets.
> >
> >
> > Thanks in advance,
> >
> > Juergen
> >
> >
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