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https://issues.apache.org/jira/browse/SOLR-17035?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Alex Deparvu resolved SOLR-17035.
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Fix Version/s: 9.5
Resolution: Fixed
> Add trace id to jetty thread names to improve debuggability via stack traces
> ----------------------------------------------------------------------------
>
> Key: SOLR-17035
> URL: https://issues.apache.org/jira/browse/SOLR-17035
> Project: Solr
> Issue Type: Improvement
> Security Level: Public(Default Security Level. Issues are Public)
> Reporter: Alex Deparvu
> Assignee: Alex Deparvu
> Priority: Minor
> Fix For: 9.5
>
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> Proposing to attach the trace id (if exists) data to the jetty thread names
> (the 'qtp*-*' pool) for more help when debugging a Solr issue. this is a
> pattern that already exists in Solr (putting the entire MDC context in the
> name), this jira is to add a single id to the name.
> Current format:
> {noformat}
> qtp1175371136-23 (23)
>
> org.apache.lucene.codecs.lucene90.blocktree.SegmentTermsEnum.getFrame(SegmentTermsEnum.java:213)
>
> org.apache.lucene.codecs.lucene90.blocktree.SegmentTermsEnum.pushFrame(SegmentTermsEnum.java:241)
>
> org.apache.lucene.codecs.lucene90.blocktree.SegmentTermsEnum.seekExact(SegmentTermsEnum.java:494)
> org.apache.lucene.index.TermStates.loadTermsEnum(TermStates.java:111)
> org.apache.lucene.index.TermStates.build(TermStates.java:96)
> {noformat}
> Proposed:
> {noformat}
> qtp2090991873-68-localhost-2786 (68)
>
> org.apache.lucene.analysis.CharArrayMap.containsKey(CharArrayMap.java:99)
> org.apache.lucene.analysis.CharArraySet.contains(CharArraySet.java:89)
> org.apache.lucene.analysis.StopFilter.accept(StopFilter.java:97)
>
> org.apache.lucene.analysis.FilteringTokenFilter.incrementToken(FilteringTokenFilter.java:52)
>
> org.apache.lucene.analysis.LowerCaseFilter.incrementToken(LowerCaseFilter.java:37)
>
> org.apache.lucene.index.IndexingChain$PerField.invertTokenStream(IndexingChain.java:1168)
>
> org.apache.lucene.index.IndexingChain$PerField.invert(IndexingChain.java:1146)
>
> org.apache.lucene.index.IndexingChain.processField(IndexingChain.java:697)
>
> org.apache.lucene.index.IndexingChain.processDocument(IndexingChain.java:576)
>
> org.apache.lucene.index.DocumentsWriterPerThread.updateDocuments(DocumentsWriterPerThread.java:242)
>
> org.apache.lucene.index.DocumentsWriter.updateDocuments(DocumentsWriter.java:432)
>
> org.apache.lucene.index.IndexWriter.updateDocuments(IndexWriter.java:1545)
>
> org.apache.lucene.index.IndexWriter.updateDocuments(IndexWriter.java:1521)
>
> org.apache.solr.update.DirectUpdateHandler2.updateDocOrDocValues(DirectUpdateHandler2.java:1063)
> {noformat}
> here `localhost-2786` is the trace id that can be searched in the logs for
> better correlation between these 2 sources of data (stacktrace, logging).
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