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https://issues.apache.org/jira/browse/LUCENE-6037?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14194130#comment-14194130
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zhanlijun edited comment on LUCENE-6037 at 11/3/14 3:59 AM:
------------------------------------------------------------
I found the cause of the problem.
I have a application scenario that add a same document to the index by using
indexwriter.addDocuments(). In order to improve the efficiency of indexing, I
make the document into a static variable. This way running very well in a
single-threaded environment, however, when I use multiple-threads to operator
indexwriter.addDocuments(), it cause the error.
The solution: I make a new document for each thread, and the error would no
longer be reappeared.
was (Author: zhanlijun):
I used multiple threads to add a single document (static variable), and it
would cause this error. After I corrected, the error would no longer be
reappeared.
> PendingTerm cannot be cast to PendingBlock
> ------------------------------------------
>
> Key: LUCENE-6037
> URL: https://issues.apache.org/jira/browse/LUCENE-6037
> Project: Lucene - Core
> Issue Type: Bug
> Components: core/codecs
> Affects Versions: 4.3.1
> Environment: ubuntu 64bit
> Reporter: zhanlijun
> Priority: Critical
> Fix For: 4.3.1
>
>
> the error as follows:
> java.lang.ClassCastException:
> org.apache.lucene.codecs.BlockTreeTermsWriter$PendingTerm cannot be cast to
> org.apache.lucene.codecs.BlockTreeTermsWriter$PendingBlock
> at
> org.apache.lucene.codecs.BlockTreeTermsWriter$TermsWriter.finish(BlockTreeTermsWriter.java:1014)
> at
> org.apache.lucene.index.FreqProxTermsWriterPerField.flush(FreqProxTermsWriterPerField.java:553)
> at
> org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:85)
> at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
> at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
> at
> org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
> at
> org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:493)
> at
> org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:480)
> at
> org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:378)
> at
> org.apache.lucene.index.DocumentsWriter.updateDocuments(DocumentsWriter.java:413)
> at
> org.apache.lucene.index.IndexWriter.updateDocuments(IndexWriter.java:1283)
> at
> org.apache.lucene.index.IndexWriter.addDocuments(IndexWriter.java:1243)
> at
> org.apache.lucene.index.IndexWriter.addDocuments(IndexWriter.java:1228)
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