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From "Tsuyoshi Ito (JIRA)" <>
Subject [jira] [Commented] (CLEREZZA-388) Composite Resource Index Service
Date Tue, 19 Apr 2011 12:49:06 GMT


Tsuyoshi Ito commented on CLEREZZA-388:

I am not sure: Probably because of inline functions within functions. Additionally inline
functions in scala makes it difficult for me to understand/read the code of CRIS (Alle functions
are defined and executed within in the constructor)

new IndexSearcher(index, true) opens at least one new file (and it will never be closed) =>
after a few searches within  300'000 triples a "too many files open" exception occurs. I never
had this problems bevor with tdb (constantly about 600 files open).

IMO if IndexSearcher and IndexWriter would be available once per lucene directory (as service?)
I think we could reduce the number of files resp. keep it constant.

> Composite Resource Index Service
> --------------------------------
>                 Key: CLEREZZA-388
>                 URL:
>             Project: Clerezza
>          Issue Type: New Feature
>            Reporter: Reto Bachmann-Gmür
>            Assignee: Hasan
>         Attachments: CLEREZZA-388-genericcondition-patch.diff,,
GraphIndexer.scala, ResourceFinder.scala
> A service shall monitor a graph for resource of a specific typed and provide composite
indexes on specified properties. It shall support searching by exact value, by range as well
as full-text search. This service shall make it possible to provide fast faceted searches.

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