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Posted to issues@lucene.apache.org by "benwtrent (via GitHub)" <gi...@apache.org> on 2025/06/17 18:39:56 UTC
Re: [I] UnsupportedOperation when merging `Lucene90BlockTreeTermsWriter` [lucene]
benwtrent commented on issue #14429:
URL: https://github.com/apache/lucene/issues/14429#issuecomment-2981454239
Working more on this, we have ran multiple diagnostics on the machines, no hardware issues seem to arise.
This issue arises not only on merge, but I have seen it on flush.
```
Caused by: org.elasticsearch.common.io.stream.NotSerializableExceptionWrapper: unsupported_operation_exception: null
at org.apache.lucene.util.fst.Outputs.merge(Outputs.java:95) ~[lucene-core-9.11.1.jar:?]
at org.apache.lucene.util.fst.FSTCompiler.add(FSTCompiler.java:936) ~[lucene-core-9.11.1.jar:?]
at org.apache.lucene.codecs.lucene90.blocktree.Lucene90BlockTreeTermsWriter$PendingBlock.append(Lucene90BlockTreeTermsWriter.java:593) ~[lucene-core-9.11.1.jar:?]
at org.apache.lucene.codecs.lucene90.blocktree.Lucene90BlockTreeTermsWriter$PendingBlock.compileIndex(Lucene90BlockTreeTermsWriter.java:562) ~[lucene-core-9.11.1.jar:?]
at org.apache.lucene.codecs.lucene90.blocktree.Lucene90BlockTreeTermsWriter$TermsWriter.writeBlocks(Lucene90BlockTreeTermsWriter.java:776) ~[lucene-core-9.11.1.jar:?]
at org.apache.lucene.codecs.lucene90.blocktree.Lucene90BlockTreeTermsWriter$TermsWriter.finish(Lucene90BlockTreeTermsWriter.java:1163) ~[lucene-core-9.11.1.jar:?]
at org.apache.lucene.codecs.lucene90.blocktree.Lucene90BlockTreeTermsWriter.write(Lucene90BlockTreeTermsWriter.java:402) ~[lucene-core-9.11.1.jar:?]
at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:172) ~[lucene-core-9.11.1.jar:?]
at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:134) ~[lucene-core-9.11.1.jar:?]
at org.apache.lucene.index.IndexingChain.flush(IndexingChain.java:333) ~[lucene-core-9.11.1.jar:?]
at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:445) ~[lucene-core-9.11.1.jar:?]
at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:496) ~[lucene-core-9.11.1.jar:?]
at org.apache.lucene.index.DocumentsWriter.maybeFlush(DocumentsWriter.java:450) ~[lucene-core-9.11.1.jar:?]
at org.apache.lucene.index.DocumentsWriter.preUpdate(DocumentsWriter.java:391) ~[lucene-core-9.11.1.jar:?]
at org.apache.lucene.index.DocumentsWriter.updateDocuments(DocumentsWriter.java:413) ~[lucene-core-9.11.1.jar:?]
at org.apache.lucene.index.IndexWriter.updateDocuments(IndexWriter.java:1561) ~[lucene-core-9.11.1.jar:?]
at org.apache.lucene.index.IndexWriter.addDocuments(IndexWriter.java:1519) ~[lucene-core-9.11.1.jar:?]
```
What's even weirder, I have seen it happen during document replication, meaning the primary index seems to have accepted the doc without issue :( and it only failed on replica.
I am still trying to get information about the field contents, but this is proving difficult.
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