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https://issues.apache.org/jira/browse/CLEREZZA-395?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12982852#action_12982852
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Reto Bachmann-Gmür commented on CLEREZZA-395:
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Today I commit a change to the jena adapter so that existing bnodes or bnodes
produced by jena-parsers no longer cause an entry in the bidi-map. Another
improvement that should be done is to keep only weak references in the bidimap
and discard map entries once the BNode-instances are no longer referenced.
> bnodes mapping in JenaGraphAdaptor should not keep growing with every parsing
> of rdf files
> ------------------------------------------------------------------------------------------
>
> Key: CLEREZZA-395
> URL: https://issues.apache.org/jira/browse/CLEREZZA-395
> Project: Clerezza
> Issue Type: Improvement
> Reporter: Hasan
> Assignee: Hasan
>
> With every parsing of rdf files free memory is getting less.
> The problem seems to lie in the JenaGraphAdaptor class
> It has a member:
> final BidiMap<BNode, Node> tria2JenaBNodes = new BidiMapImpl<BNode, Node>();
> which grows each time a serialized graph get parsed.
> My experiments with my test data show
> At the end of the 1st parsing: Size of tria2JenaBNodes = 87200
> At the end of the 2nd parsing: Size of tria2JenaBNodes = 130800
> At the end of the 3rd parsing: Size of tria2JenaBNodes = 174400
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