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POSolrJ addFile keeps documents open
 

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    <p>I've already submitted a similar question, but I've broken down the problem to its simplest form, so I'm gonna post it again:</p> <p>The problem is, that SolrJ seems to keep file handles open, if I add the same file more than once.</p> <p>I use the following method to submit a document to Solr:</p> <pre><code>public boolean addDocument( File doc ) throws IOException, SolrServerException { ContentStreamUpdateRequest csur = new ContentStreamUpdateRequest( "/update/extract" ); csur.addFile( doc ); csur.setParam( "literal.id", Utils.getAbsolutePath( doc ) ); csur.setAction( AbstractUpdateRequest.ACTION.COMMIT, true, true ); NamedList&lt;Object&gt; result = this.solr.request( csur ); return result != null; } </code></pre> <p>And this method to remove documents:</p> <pre><code>public void removeDocument( File doc ) throws IOException, SolrServerException { this.solr.deleteById( Utils.getAbsolutePath( doc ) ); this.solr.commit(); } </code></pre> <p>But that seems to leave some File Handles lingering:</p> <p>The following snippet demonstrates the problem:</p> <pre><code>File doc = new File( "../../testpdf/bbb.pdf" ); solr.addDocument( doc ); //solr.removeDocument( doc ); // Without these 2 lines, all handles //solr.addDocument( doc ); // are released correctly </code></pre> <p>If I add the same document twice, SolrJ somehow keeps the handles alive, and the added document cannot be modified by any other processes.</p> <p>I've already tried calling using <code>csur.addContentStream()</code> instead of <code>csur.addFile()</code> in <code>addDocument</code> and then closing the underlying Stream and Reader of the added stream, with no effect.</p> <p>thx for any suggestions in advance</p>
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    1. COAre you sure it's Solr and not Jnotify itself? Take a look who's holding file open. This would be a good start
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    2. COI'm fairly sure it's Solr. I've tested a little more now, and the behaviour is quite strange. Sometimes, files also stay locked after the initial scan. Maybe it's due to some lazy-loading stuff that SolrJ does.
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    3. COkk, it's definitely something SolrJ-specifig. I've removed everything but 2 calls to `addDocument` with the same document. After the first call, the file-handle gets freed, but when I do the second call, the handle stays.
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