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  1. Solr
  2. SOLR-13487

Unable to upgrade Lucene 6.x index using IndexUpgrader

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      I'm trying to upgrade a index from Lucene 6.x to 7.x, and then to 8.x, using IndexUpgrader [1]. But it never successfully upgrades to 7, and I cannot figure out why.

      I've also tried using CheckIndex [2] with the -exorcise option to fix the index first, but that doesn't help.

      [1] https://lucene.apache.org/solr/guide/7_7/indexupgrader-tool.html
      [2] https://lucene.apache.org/core/7_1_0/core/org/apache/lucene/index/CheckIndex.html#main-java.lang.String:A-

      user@dev-appsolr2535:/home/user> java -cp '/opt/common/apps/apache-solr-7.7.1/server/solr-webapp/webapp/WEB-INF/lib/*' org.apache.lucene.index.IndexUpgrader -delete-prior-commits -verbose /opt/user/solr5-prog-fhh-storage-solr/solr/prog-fhh-storage-solr_shard4_replica_n259/data/index
      
      IFD 0 [2019-05-22T09:24:14.317Z; main]: init: current segments file is "segments_505t"; deletionPolicy=org.apache.lucene.index.KeepOnlyLastCommitDeletionPolicy@29774679
      IFD 0 [2019-05-22T09:24:14.336Z; main]: init: load commit "segments_505t"
      IFD 0 [2019-05-22T09:24:14.346Z; main]: init: seg=_11nw3 set nextWriteFieldInfosGen=134 vs current=1
      IFD 0 [2019-05-22T09:24:14.347Z; main]: init: seg=_11nw3 set nextWriteDocValuesGen=134 vs current=1
      IFD 0 [2019-05-22T09:24:14.358Z; main]: now checkpoint "_11nw3(7.7.1):C16557/1395:[diagnostics={os=Linux, java.vendor=AdoptOpenJDK, java.version=11.0.1, java.vm.version=11.0.1+13, lucene.version=7.7.1, mergeMaxNumSegments=-1, os.arch=amd64, java.runtime.version=11.0.1+13, source=merge, mergeFactor=10, os.version=3.16.0-5-amd64, timestamp=1558499119537}]:[attributes={Lucene50StoredFieldsFormat.mode=BEST_SPEED}]:delGen=133 _11o9p(7.7.1):c798:[diagnostics={os=Linux, java.vendor=AdoptOpenJDK, java.version=11.0.1, java.vm.version=11.0.1+13, lucene.version=7.7.1, mergeMaxNumSegments=-1, os.arch=amd64, java.runtime.version=11.0.1+13, source=merge, mergeFactor=10, os.version=3.16.0-5-amd64, timestamp=1558507559781}]:[attributes={Lucene50StoredFieldsFormat.mode=BEST_SPEED}] _11o9z(7.7.1):c797:[diagnostics={os=Linux, java.vendor=AdoptOpenJDK, java.version=11.0.1, java.vm.version=11.0.1+13, lucene.version=7.7.1, mergeMaxNumSegments=-1, os.arch=amd64, java.runtime.version=11.0.1+13, source=merge, mergeFactor=10, os.version=3.16.0-5-amd64, timestamp=1558507739341}]:[attributes={Lucene50StoredFieldsFormat.mode=BEST_SPEED}] _11oa0(7.7.1):C1:[diagnostics={java.runtime.version=11.0.1+13, java.vendor=AdoptOpenJDK, java.version=11.0.1, java.vm.version=11.0.1+13, lucene.version=7.7.1, os=Linux, os.arch=amd64, os.version=3.16.0-5-amd64, source=flush, timestamp=1558507750723}]:[attributes={Lucene50StoredFieldsFormat.mode=BEST_SPEED}] _11oa1(7.7.1):C2:[diagnostics={java.runtime.version=11.0.1+13, java.vendor=AdoptOpenJDK, java.version=11.0.1, java.vm.version=11.0.1+13, lucene.version=7.7.1, os=Linux, os.arch=amd64, os.version=3.16.0-5-amd64, source=flush, timestamp=1558507812631}]:[attributes={Lucene50StoredFieldsFormat.mode=BEST_SPEED}]" [5 segments ; isCommit = false]
      IFD 0 [2019-05-22T09:24:14.358Z; main]: 11 msec to checkpoint
      IW 0 [2019-05-22T09:24:14.359Z; main]: init: create=false reader=null
      IW 0 [2019-05-22T09:24:14.362Z; main]: 
      dir=MMapDirectory@/opt/user/solr5-prog-fhh-storage-solr/solr/prog-fhh-storage-solr_shard4_replica_n259/data/index lockFactory=org.apache.lucene.store.NativeFSLockFactory@14bf9759
      index=_11nw3(7.7.1):C16557/1395:[diagnostics={os=Linux, java.vendor=AdoptOpenJDK, java.version=11.0.1, java.vm.version=11.0.1+13, lucene.version=7.7.1, mergeMaxNumSegments=-1, os.arch=amd64, java.runtime.version=11.0.1+13, source=merge, mergeFactor=10, os.version=3.16.0-5-amd64, timestamp=1558499119537}]:[attributes={Lucene50StoredFieldsFormat.mode=BEST_SPEED}]:delGen=133 _11o9p(7.7.1):c798:[diagnostics={os=Linux, java.vendor=AdoptOpenJDK, java.version=11.0.1, java.vm.version=11.0.1+13, lucene.version=7.7.1, mergeMaxNumSegments=-1, os.arch=amd64, java.runtime.version=11.0.1+13, source=merge, mergeFactor=10, os.version=3.16.0-5-amd64, timestamp=1558507559781}]:[attributes={Lucene50StoredFieldsFormat.mode=BEST_SPEED}] _11o9z(7.7.1):c797:[diagnostics={os=Linux, java.vendor=AdoptOpenJDK, java.version=11.0.1, java.vm.version=11.0.1+13, lucene.version=7.7.1, mergeMaxNumSegments=-1, os.arch=amd64, java.runtime.version=11.0.1+13, source=merge, mergeFactor=10, os.version=3.16.0-5-amd64, timestamp=1558507739341}]:[attributes={Lucene50StoredFieldsFormat.mode=BEST_SPEED}] _11oa0(7.7.1):C1:[diagnostics={java.runtime.version=11.0.1+13, java.vendor=AdoptOpenJDK, java.version=11.0.1, java.vm.version=11.0.1+13, lucene.version=7.7.1, os=Linux, os.arch=amd64, os.version=3.16.0-5-amd64, source=flush, timestamp=1558507750723}]:[attributes={Lucene50StoredFieldsFormat.mode=BEST_SPEED}] _11oa1(7.7.1):C2:[diagnostics={java.runtime.version=11.0.1+13, java.vendor=AdoptOpenJDK, java.version=11.0.1, java.vm.version=11.0.1+13, lucene.version=7.7.1, os=Linux, os.arch=amd64, os.version=3.16.0-5-amd64, source=flush, timestamp=1558507812631}]:[attributes={Lucene50StoredFieldsFormat.mode=BEST_SPEED}]
      version=7.7.1
      analyzer=null
      ramBufferSizeMB=16.0
      maxBufferedDocs=-1
      mergedSegmentWarmer=null
      delPolicy=org.apache.lucene.index.KeepOnlyLastCommitDeletionPolicy
      commit=null
      openMode=CREATE_OR_APPEND
      similarity=org.apache.lucene.search.similarities.BM25Similarity
      mergeScheduler=ConcurrentMergeScheduler: maxThreadCount=-1, maxMergeCount=-1, ioThrottle=true
      codec=Lucene70
      infoStream=org.apache.lucene.util.PrintStreamInfoStream
      mergePolicy=UpgradeIndexMergePolicy([TieredMergePolicy: maxMergeAtOnce=10, maxMergeAtOnceExplicit=30, maxMergedSegmentMB=5120.0, floorSegmentMB=2.0, forceMergeDeletesPctAllowed=10.0, segmentsPerTier=10.0, maxCFSSegmentSizeMB=8.796093022207999E12, noCFSRatio=0.1, deletesPctAllowed=33.0)
      indexerThreadPool=org.apache.lucene.index.DocumentsWriterPerThreadPool@5f341870
      readerPooling=true
      perThreadHardLimitMB=1945
      useCompoundFile=true
      commitOnClose=true
      indexSort=null
      checkPendingFlushOnUpdate=true
      softDeletesField=null
      writer=org.apache.lucene.index.IndexWriter@553f17c
      
      IW 0 [2019-05-22T09:24:14.363Z; main]: MMapDirectory.UNMAP_SUPPORTED=true
      IndexUpgrader 0 [2019-05-22T09:24:14.363Z; main]: Upgrading all pre-7.7.1 segments of index directory 'MMapDirectory@/opt/user/solr5-prog-fhh-storage-solr/solr/prog-fhh-storage-solr_shard4_replica_n259/data/index lockFactory=org.apache.lucene.store.NativeFSLockFactory@14bf9759' to version 7.7.1...
      IW 0 [2019-05-22T09:24:14.364Z; main]: forceMerge: index now _11nw3(7.7.1):C16557/1395:[diagnostics={os=Linux, java.vendor=AdoptOpenJDK, java.version=11.0.1, java.vm.version=11.0.1+13, lucene.version=7.7.1, mergeMaxNumSegments=-1, os.arch=amd64, java.runtime.version=11.0.1+13, source=merge, mergeFactor=10, os.version=3.16.0-5-amd64, timestamp=1558499119537}]:[attributes={Lucene50StoredFieldsFormat.mode=BEST_SPEED}]:delGen=133 _11o9p(7.7.1):c798:[diagnostics={os=Linux, java.vendor=AdoptOpenJDK, java.version=11.0.1, java.vm.version=11.0.1+13, lucene.version=7.7.1, mergeMaxNumSegments=-1, os.arch=amd64, java.runtime.version=11.0.1+13, source=merge, mergeFactor=10, os.version=3.16.0-5-amd64, timestamp=1558507559781}]:[attributes={Lucene50StoredFieldsFormat.mode=BEST_SPEED}] _11o9z(7.7.1):c797:[diagnostics={os=Linux, java.vendor=AdoptOpenJDK, java.version=11.0.1, java.vm.version=11.0.1+13, lucene.version=7.7.1, mergeMaxNumSegments=-1, os.arch=amd64, java.runtime.version=11.0.1+13, source=merge, mergeFactor=10, os.version=3.16.0-5-amd64, timestamp=1558507739341}]:[attributes={Lucene50StoredFieldsFormat.mode=BEST_SPEED}] _11oa0(7.7.1):C1:[diagnostics={java.runtime.version=11.0.1+13, java.vendor=AdoptOpenJDK, java.version=11.0.1, java.vm.version=11.0.1+13, lucene.version=7.7.1, os=Linux, os.arch=amd64, os.version=3.16.0-5-amd64, source=flush, timestamp=1558507750723}]:[attributes={Lucene50StoredFieldsFormat.mode=BEST_SPEED}] _11oa1(7.7.1):C2:[diagnostics={java.runtime.version=11.0.1+13, java.vendor=AdoptOpenJDK, java.version=11.0.1, java.vm.version=11.0.1+13, lucene.version=7.7.1, os=Linux, os.arch=amd64, os.version=3.16.0-5-amd64, source=flush, timestamp=1558507812631}]:[attributes={Lucene50StoredFieldsFormat.mode=BEST_SPEED}]
      IW 0 [2019-05-22T09:24:14.364Z; main]: now flush at forceMerge
      IW 0 [2019-05-22T09:24:14.364Z; main]:   start flush: applyAllDeletes=true
      IW 0 [2019-05-22T09:24:14.365Z; main]:   index before flush _11nw3(7.7.1):C16557/1395:[diagnostics={os=Linux, java.vendor=AdoptOpenJDK, java.version=11.0.1, java.vm.version=11.0.1+13, lucene.version=7.7.1, mergeMaxNumSegments=-1, os.arch=amd64, java.runtime.version=11.0.1+13, source=merge, mergeFactor=10, os.version=3.16.0-5-amd64, timestamp=1558499119537}]:[attributes={Lucene50StoredFieldsFormat.mode=BEST_SPEED}]:delGen=133 _11o9p(7.7.1):c798:[diagnostics={os=Linux, java.vendor=AdoptOpenJDK, java.version=11.0.1, java.vm.version=11.0.1+13, lucene.version=7.7.1, mergeMaxNumSegments=-1, os.arch=amd64, java.runtime.version=11.0.1+13, source=merge, mergeFactor=10, os.version=3.16.0-5-amd64, timestamp=1558507559781}]:[attributes={Lucene50StoredFieldsFormat.mode=BEST_SPEED}] _11o9z(7.7.1):c797:[diagnostics={os=Linux, java.vendor=AdoptOpenJDK, java.version=11.0.1, java.vm.version=11.0.1+13, lucene.version=7.7.1, mergeMaxNumSegments=-1, os.arch=amd64, java.runtime.version=11.0.1+13, source=merge, mergeFactor=10, os.version=3.16.0-5-amd64, timestamp=1558507739341}]:[attributes={Lucene50StoredFieldsFormat.mode=BEST_SPEED}] _11oa0(7.7.1):C1:[diagnostics={java.runtime.version=11.0.1+13, java.vendor=AdoptOpenJDK, java.version=11.0.1, java.vm.version=11.0.1+13, lucene.version=7.7.1, os=Linux, os.arch=amd64, os.version=3.16.0-5-amd64, source=flush, timestamp=1558507750723}]:[attributes={Lucene50StoredFieldsFormat.mode=BEST_SPEED}] _11oa1(7.7.1):C2:[diagnostics={java.runtime.version=11.0.1+13, java.vendor=AdoptOpenJDK, java.version=11.0.1, java.vm.version=11.0.1+13, lucene.version=7.7.1, os=Linux, os.arch=amd64, os.version=3.16.0-5-amd64, source=flush, timestamp=1558507812631}]:[attributes={Lucene50StoredFieldsFormat.mode=BEST_SPEED}]
      DW 0 [2019-05-22T09:24:14.365Z; main]: startFullFlush
      DW 0 [2019-05-22T09:24:14.367Z; main]: main finishFullFlush success=true
      IW 0 [2019-05-22T09:24:14.367Z; main]: now apply all deletes for all segments buffered updates bytesUsed=0 reader pool bytesUsed=0
      BD 0 [2019-05-22T09:24:14.367Z; main]: waitApply: no deletes to apply
      MP 0 [2019-05-22T09:24:14.368Z; main]: findForcedMerges: segmentsToUpgrade={}
      MS 0 [2019-05-22T09:24:14.371Z; main]: initDynamicDefaults spins=true maxThreadCount=1 maxMergeCount=6
      MS 0 [2019-05-22T09:24:14.372Z; main]: now merge
      MS 0 [2019-05-22T09:24:14.372Z; main]:   index: _11nw3(7.7.1):C16557/1395:[diagnostics={os=Linux, java.vendor=AdoptOpenJDK, java.version=11.0.1, java.vm.version=11.0.1+13, lucene.version=7.7.1, mergeMaxNumSegments=-1, os.arch=amd64, java.runtime.version=11.0.1+13, source=merge, mergeFactor=10, os.version=3.16.0-5-amd64, timestamp=1558499119537}]:[attributes={Lucene50StoredFieldsFormat.mode=BEST_SPEED}]:delGen=133 _11o9p(7.7.1):c798:[diagnostics={os=Linux, java.vendor=AdoptOpenJDK, java.version=11.0.1, java.vm.version=11.0.1+13, lucene.version=7.7.1, mergeMaxNumSegments=-1, os.arch=amd64, java.runtime.version=11.0.1+13, source=merge, mergeFactor=10, os.version=3.16.0-5-amd64, timestamp=1558507559781}]:[attributes={Lucene50StoredFieldsFormat.mode=BEST_SPEED}] _11o9z(7.7.1):c797:[diagnostics={os=Linux, java.vendor=AdoptOpenJDK, java.version=11.0.1, java.vm.version=11.0.1+13, lucene.version=7.7.1, mergeMaxNumSegments=-1, os.arch=amd64, java.runtime.version=11.0.1+13, source=merge, mergeFactor=10, os.version=3.16.0-5-amd64, timestamp=1558507739341}]:[attributes={Lucene50StoredFieldsFormat.mode=BEST_SPEED}] _11oa0(7.7.1):C1:[diagnostics={java.runtime.version=11.0.1+13, java.vendor=AdoptOpenJDK, java.version=11.0.1, java.vm.version=11.0.1+13, lucene.version=7.7.1, os=Linux, os.arch=amd64, os.version=3.16.0-5-amd64, source=flush, timestamp=1558507750723}]:[attributes={Lucene50StoredFieldsFormat.mode=BEST_SPEED}] _11oa1(7.7.1):C2:[diagnostics={java.runtime.version=11.0.1+13, java.vendor=AdoptOpenJDK, java.version=11.0.1, java.vm.version=11.0.1+13, lucene.version=7.7.1, os=Linux, os.arch=amd64, os.version=3.16.0-5-amd64, source=flush, timestamp=1558507812631}]:[attributes={Lucene50StoredFieldsFormat.mode=BEST_SPEED}]
      MS 0 [2019-05-22T09:24:14.372Z; main]:   no more merges pending; now return
      IndexUpgrader 0 [2019-05-22T09:24:14.372Z; main]: All segments upgraded to version 7.7.1
      IndexUpgrader 0 [2019-05-22T09:24:14.373Z; main]: Enforcing commit to rewrite all index metadata...
      IW 0 [2019-05-22T09:24:14.373Z; main]: commit: start
      IW 0 [2019-05-22T09:24:14.373Z; main]: commit: enter lock
      IW 0 [2019-05-22T09:24:14.373Z; main]: commit: now prepare
      IW 0 [2019-05-22T09:24:14.373Z; main]: prepareCommit: flush
      IW 0 [2019-05-22T09:24:14.374Z; main]:   index before flush _11nw3(7.7.1):C16557/1395:[diagnostics={os=Linux, java.vendor=AdoptOpenJDK, java.version=11.0.1, java.vm.version=11.0.1+13, lucene.version=7.7.1, mergeMaxNumSegments=-1, os.arch=amd64, java.runtime.version=11.0.1+13, source=merge, mergeFactor=10, os.version=3.16.0-5-amd64, timestamp=1558499119537}]:[attributes={Lucene50StoredFieldsFormat.mode=BEST_SPEED}]:delGen=133 _11o9p(7.7.1):c798:[diagnostics={os=Linux, java.vendor=AdoptOpenJDK, java.version=11.0.1, java.vm.version=11.0.1+13, lucene.version=7.7.1, mergeMaxNumSegments=-1, os.arch=amd64, java.runtime.version=11.0.1+13, source=merge, mergeFactor=10, os.version=3.16.0-5-amd64, timestamp=1558507559781}]:[attributes={Lucene50StoredFieldsFormat.mode=BEST_SPEED}] _11o9z(7.7.1):c797:[diagnostics={os=Linux, java.vendor=AdoptOpenJDK, java.version=11.0.1, java.vm.version=11.0.1+13, lucene.version=7.7.1, mergeMaxNumSegments=-1, os.arch=amd64, java.runtime.version=11.0.1+13, source=merge, mergeFactor=10, os.version=3.16.0-5-amd64, timestamp=1558507739341}]:[attributes={Lucene50StoredFieldsFormat.mode=BEST_SPEED}] _11oa0(7.7.1):C1:[diagnostics={java.runtime.version=11.0.1+13, java.vendor=AdoptOpenJDK, java.version=11.0.1, java.vm.version=11.0.1+13, lucene.version=7.7.1, os=Linux, os.arch=amd64, os.version=3.16.0-5-amd64, source=flush, timestamp=1558507750723}]:[attributes={Lucene50StoredFieldsFormat.mode=BEST_SPEED}] _11oa1(7.7.1):C2:[diagnostics={java.runtime.version=11.0.1+13, java.vendor=AdoptOpenJDK, java.version=11.0.1, java.vm.version=11.0.1+13, lucene.version=7.7.1, os=Linux, os.arch=amd64, os.version=3.16.0-5-amd64, source=flush, timestamp=1558507812631}]:[attributes={Lucene50StoredFieldsFormat.mode=BEST_SPEED}]
      DW 0 [2019-05-22T09:24:14.374Z; main]: startFullFlush
      IW 0 [2019-05-22T09:24:14.374Z; main]: now apply all deletes for all segments buffered updates bytesUsed=0 reader pool bytesUsed=0
      BD 0 [2019-05-22T09:24:14.375Z; main]: waitApply: no deletes to apply
      DW 0 [2019-05-22T09:24:14.375Z; main]: main finishFullFlush success=true
      IW 0 [2019-05-22T09:24:14.375Z; main]: startCommit(): start
      IW 0 [2019-05-22T09:24:14.376Z; main]: startCommit index=_11nw3(7.7.1):C16557/1395:[diagnostics={os=Linux, java.vendor=AdoptOpenJDK, java.version=11.0.1, java.vm.version=11.0.1+13, lucene.version=7.7.1, mergeMaxNumSegments=-1, os.arch=amd64, java.runtime.version=11.0.1+13, source=merge, mergeFactor=10, os.version=3.16.0-5-amd64, timestamp=1558499119537}]:[attributes={Lucene50StoredFieldsFormat.mode=BEST_SPEED}]:delGen=133 _11o9p(7.7.1):c798:[diagnostics={os=Linux, java.vendor=AdoptOpenJDK, java.version=11.0.1, java.vm.version=11.0.1+13, lucene.version=7.7.1, mergeMaxNumSegments=-1, os.arch=amd64, java.runtime.version=11.0.1+13, source=merge, mergeFactor=10, os.version=3.16.0-5-amd64, timestamp=1558507559781}]:[attributes={Lucene50StoredFieldsFormat.mode=BEST_SPEED}] _11o9z(7.7.1):c797:[diagnostics={os=Linux, java.vendor=AdoptOpenJDK, java.version=11.0.1, java.vm.version=11.0.1+13, lucene.version=7.7.1, mergeMaxNumSegments=-1, os.arch=amd64, java.runtime.version=11.0.1+13, source=merge, mergeFactor=10, os.version=3.16.0-5-amd64, timestamp=1558507739341}]:[attributes={Lucene50StoredFieldsFormat.mode=BEST_SPEED}] _11oa0(7.7.1):C1:[diagnostics={java.runtime.version=11.0.1+13, java.vendor=AdoptOpenJDK, java.version=11.0.1, java.vm.version=11.0.1+13, lucene.version=7.7.1, os=Linux, os.arch=amd64, os.version=3.16.0-5-amd64, source=flush, timestamp=1558507750723}]:[attributes={Lucene50StoredFieldsFormat.mode=BEST_SPEED}] _11oa1(7.7.1):C2:[diagnostics={java.runtime.version=11.0.1+13, java.vendor=AdoptOpenJDK, java.version=11.0.1, java.vm.version=11.0.1+13, lucene.version=7.7.1, os=Linux, os.arch=amd64, os.version=3.16.0-5-amd64, source=flush, timestamp=1558507812631}]:[attributes={Lucene50StoredFieldsFormat.mode=BEST_SPEED}] changeCount=2
      IW 0 [2019-05-22T09:24:14.382Z; main]: startCommit: wrote pending segments file "pending_segments_505u"
      IW 0 [2019-05-22T09:24:14.387Z; main]: done all syncs: [_11oa0.si, _11oa0.fdx, _11nw3_3p.liv, _11oa0_Lucene50_0.doc, _11nw3.nvd, _11oa0.fdt, _11oa1_Lucene50_0.doc, _11nw3.si, _11o9p.cfe, _11nw3_Lucene50_0.pos, _11oa1.fdx, _11nw3_Lucene50_0.tim, _11nw3_Lucene50_0.tip, _11oa1.fdt, _11nw3.fdx, _11oa0_Lucene50_0.pos, _11oa1.fnm, _11oa1.nvm, _11oa1.si, _11nw3.fdt, _11o9p.cfs, _11oa0.nvd, _11o9z.si, _11o9z.cfs, _11oa0_Lucene50_0.tim, _11o9p.si, _11oa0_Lucene50_0.tip, _11oa1_Lucene50_0.tim, _11nw3.fnm, _11nw3.nvm, _11oa1_Lucene50_0.pos, _11oa1.nvd, _11o9z.cfe, _11oa1_Lucene50_0.tip, _11nw3_Lucene50_0.doc, _11oa0.fnm, _11oa0.nvm]
      IW 0 [2019-05-22T09:24:14.388Z; main]: commit: pendingCommit != null
      IW 0 [2019-05-22T09:24:14.389Z; main]: commit: done writing segments file "segments_505u"
      IFD 0 [2019-05-22T09:24:14.390Z; main]: now checkpoint "_11nw3(7.7.1):C16557/1395:[diagnostics={os=Linux, java.vendor=AdoptOpenJDK, java.version=11.0.1, java.vm.version=11.0.1+13, lucene.version=7.7.1, mergeMaxNumSegments=-1, os.arch=amd64, java.runtime.version=11.0.1+13, source=merge, mergeFactor=10, os.version=3.16.0-5-amd64, timestamp=1558499119537}]:[attributes={Lucene50StoredFieldsFormat.mode=BEST_SPEED}]:delGen=133 _11o9p(7.7.1):c798:[diagnostics={os=Linux, java.vendor=AdoptOpenJDK, java.version=11.0.1, java.vm.version=11.0.1+13, lucene.version=7.7.1, mergeMaxNumSegments=-1, os.arch=amd64, java.runtime.version=11.0.1+13, source=merge, mergeFactor=10, os.version=3.16.0-5-amd64, timestamp=1558507559781}]:[attributes={Lucene50StoredFieldsFormat.mode=BEST_SPEED}] _11o9z(7.7.1):c797:[diagnostics={os=Linux, java.vendor=AdoptOpenJDK, java.version=11.0.1, java.vm.version=11.0.1+13, lucene.version=7.7.1, mergeMaxNumSegments=-1, os.arch=amd64, java.runtime.version=11.0.1+13, source=merge, mergeFactor=10, os.version=3.16.0-5-amd64, timestamp=1558507739341}]:[attributes={Lucene50StoredFieldsFormat.mode=BEST_SPEED}] _11oa0(7.7.1):C1:[diagnostics={java.runtime.version=11.0.1+13, java.vendor=AdoptOpenJDK, java.version=11.0.1, java.vm.version=11.0.1+13, lucene.version=7.7.1, os=Linux, os.arch=amd64, os.version=3.16.0-5-amd64, source=flush, timestamp=1558507750723}]:[attributes={Lucene50StoredFieldsFormat.mode=BEST_SPEED}] _11oa1(7.7.1):C2:[diagnostics={java.runtime.version=11.0.1+13, java.vendor=AdoptOpenJDK, java.version=11.0.1, java.vm.version=11.0.1+13, lucene.version=7.7.1, os=Linux, os.arch=amd64, os.version=3.16.0-5-amd64, source=flush, timestamp=1558507812631}]:[attributes={Lucene50StoredFieldsFormat.mode=BEST_SPEED}]" [5 segments ; isCommit = true]
      IFD 0 [2019-05-22T09:24:14.390Z; main]: deleteCommits: now decRef commit "segments_505t"
      IFD 0 [2019-05-22T09:24:14.391Z; main]: delete [segments_505t]
      IFD 0 [2019-05-22T09:24:14.391Z; main]: 1 msec to checkpoint
      IW 0 [2019-05-22T09:24:14.400Z; main]: commit: took 18.0 msec
      IW 0 [2019-05-22T09:24:14.401Z; main]: commit: done
      IndexUpgrader 0 [2019-05-22T09:24:14.401Z; main]: Committed upgraded metadata to index.
      IW 0 [2019-05-22T09:24:14.401Z; main]: now flush at close
      IW 0 [2019-05-22T09:24:14.401Z; main]:   start flush: applyAllDeletes=true
      IW 0 [2019-05-22T09:24:14.401Z; main]:   index before flush _11nw3(7.7.1):C16557/1395:[diagnostics={os=Linux, java.vendor=AdoptOpenJDK, java.version=11.0.1, java.vm.version=11.0.1+13, lucene.version=7.7.1, mergeMaxNumSegments=-1, os.arch=amd64, java.runtime.version=11.0.1+13, source=merge, mergeFactor=10, os.version=3.16.0-5-amd64, timestamp=1558499119537}]:[attributes={Lucene50StoredFieldsFormat.mode=BEST_SPEED}]:delGen=133 _11o9p(7.7.1):c798:[diagnostics={os=Linux, java.vendor=AdoptOpenJDK, java.version=11.0.1, java.vm.version=11.0.1+13, lucene.version=7.7.1, mergeMaxNumSegments=-1, os.arch=amd64, java.runtime.version=11.0.1+13, source=merge, mergeFactor=10, os.version=3.16.0-5-amd64, timestamp=1558507559781}]:[attributes={Lucene50StoredFieldsFormat.mode=BEST_SPEED}] _11o9z(7.7.1):c797:[diagnostics={os=Linux, java.vendor=AdoptOpenJDK, java.version=11.0.1, java.vm.version=11.0.1+13, lucene.version=7.7.1, mergeMaxNumSegments=-1, os.arch=amd64, java.runtime.version=11.0.1+13, source=merge, mergeFactor=10, os.version=3.16.0-5-amd64, timestamp=1558507739341}]:[attributes={Lucene50StoredFieldsFormat.mode=BEST_SPEED}] _11oa0(7.7.1):C1:[diagnostics={java.runtime.version=11.0.1+13, java.vendor=AdoptOpenJDK, java.version=11.0.1, java.vm.version=11.0.1+13, lucene.version=7.7.1, os=Linux, os.arch=amd64, os.version=3.16.0-5-amd64, source=flush, timestamp=1558507750723}]:[attributes={Lucene50StoredFieldsFormat.mode=BEST_SPEED}] _11oa1(7.7.1):C2:[diagnostics={java.runtime.version=11.0.1+13, java.vendor=AdoptOpenJDK, java.version=11.0.1, java.vm.version=11.0.1+13, lucene.version=7.7.1, os=Linux, os.arch=amd64, os.version=3.16.0-5-amd64, source=flush, timestamp=1558507812631}]:[attributes={Lucene50StoredFieldsFormat.mode=BEST_SPEED}]
      DW 0 [2019-05-22T09:24:14.402Z; main]: startFullFlush
      DW 0 [2019-05-22T09:24:14.402Z; main]: main finishFullFlush success=true
      IW 0 [2019-05-22T09:24:14.402Z; main]: now apply all deletes for all segments buffered updates bytesUsed=0 reader pool bytesUsed=0
      BD 0 [2019-05-22T09:24:14.402Z; main]: waitApply: no deletes to apply
      MS 0 [2019-05-22T09:24:14.403Z; main]: updateMergeThreads ioThrottle=true targetMBPerSec=10240.0 MB/sec
      MS 0 [2019-05-22T09:24:14.403Z; main]: now merge
      MS 0 [2019-05-22T09:24:14.403Z; main]:   index: _11nw3(7.7.1):C16557/1395:[diagnostics={os=Linux, java.vendor=AdoptOpenJDK, java.version=11.0.1, java.vm.version=11.0.1+13, lucene.version=7.7.1, mergeMaxNumSegments=-1, os.arch=amd64, java.runtime.version=11.0.1+13, source=merge, mergeFactor=10, os.version=3.16.0-5-amd64, timestamp=1558499119537}]:[attributes={Lucene50StoredFieldsFormat.mode=BEST_SPEED}]:delGen=133 _11o9p(7.7.1):c798:[diagnostics={os=Linux, java.vendor=AdoptOpenJDK, java.version=11.0.1, java.vm.version=11.0.1+13, lucene.version=7.7.1, mergeMaxNumSegments=-1, os.arch=amd64, java.runtime.version=11.0.1+13, source=merge, mergeFactor=10, os.version=3.16.0-5-amd64, timestamp=1558507559781}]:[attributes={Lucene50StoredFieldsFormat.mode=BEST_SPEED}] _11o9z(7.7.1):c797:[diagnostics={os=Linux, java.vendor=AdoptOpenJDK, java.version=11.0.1, java.vm.version=11.0.1+13, lucene.version=7.7.1, mergeMaxNumSegments=-1, os.arch=amd64, java.runtime.version=11.0.1+13, source=merge, mergeFactor=10, os.version=3.16.0-5-amd64, timestamp=1558507739341}]:[attributes={Lucene50StoredFieldsFormat.mode=BEST_SPEED}] _11oa0(7.7.1):C1:[diagnostics={java.runtime.version=11.0.1+13, java.vendor=AdoptOpenJDK, java.version=11.0.1, java.vm.version=11.0.1+13, lucene.version=7.7.1, os=Linux, os.arch=amd64, os.version=3.16.0-5-amd64, source=flush, timestamp=1558507750723}]:[attributes={Lucene50StoredFieldsFormat.mode=BEST_SPEED}] _11oa1(7.7.1):C2:[diagnostics={java.runtime.version=11.0.1+13, java.vendor=AdoptOpenJDK, java.version=11.0.1, java.vm.version=11.0.1+13, lucene.version=7.7.1, os=Linux, os.arch=amd64, os.version=3.16.0-5-amd64, source=flush, timestamp=1558507812631}]:[attributes={Lucene50StoredFieldsFormat.mode=BEST_SPEED}]
      MS 0 [2019-05-22T09:24:14.404Z; main]:   no more merges pending; now return
      IW 0 [2019-05-22T09:24:14.404Z; main]: waitForMerges
      IW 0 [2019-05-22T09:24:14.404Z; main]: waitForMerges done
      IW 0 [2019-05-22T09:24:14.404Z; main]: commit: start
      IW 0 [2019-05-22T09:24:14.404Z; main]: commit: enter lock
      IW 0 [2019-05-22T09:24:14.404Z; main]: commit: now prepare
      IW 0 [2019-05-22T09:24:14.405Z; main]: prepareCommit: flush
      IW 0 [2019-05-22T09:24:14.405Z; main]:   index before flush _11nw3(7.7.1):C16557/1395:[diagnostics={os=Linux, java.vendor=AdoptOpenJDK, java.version=11.0.1, java.vm.version=11.0.1+13, lucene.version=7.7.1, mergeMaxNumSegments=-1, os.arch=amd64, java.runtime.version=11.0.1+13, source=merge, mergeFactor=10, os.version=3.16.0-5-amd64, timestamp=1558499119537}]:[attributes={Lucene50StoredFieldsFormat.mode=BEST_SPEED}]:delGen=133 _11o9p(7.7.1):c798:[diagnostics={os=Linux, java.vendor=AdoptOpenJDK, java.version=11.0.1, java.vm.version=11.0.1+13, lucene.version=7.7.1, mergeMaxNumSegments=-1, os.arch=amd64, java.runtime.version=11.0.1+13, source=merge, mergeFactor=10, os.version=3.16.0-5-amd64, timestamp=1558507559781}]:[attributes={Lucene50StoredFieldsFormat.mode=BEST_SPEED}] _11o9z(7.7.1):c797:[diagnostics={os=Linux, java.vendor=AdoptOpenJDK, java.version=11.0.1, java.vm.version=11.0.1+13, lucene.version=7.7.1, mergeMaxNumSegments=-1, os.arch=amd64, java.runtime.version=11.0.1+13, source=merge, mergeFactor=10, os.version=3.16.0-5-amd64, timestamp=1558507739341}]:[attributes={Lucene50StoredFieldsFormat.mode=BEST_SPEED}] _11oa0(7.7.1):C1:[diagnostics={java.runtime.version=11.0.1+13, java.vendor=AdoptOpenJDK, java.version=11.0.1, java.vm.version=11.0.1+13, lucene.version=7.7.1, os=Linux, os.arch=amd64, os.version=3.16.0-5-amd64, source=flush, timestamp=1558507750723}]:[attributes={Lucene50StoredFieldsFormat.mode=BEST_SPEED}] _11oa1(7.7.1):C2:[diagnostics={java.runtime.version=11.0.1+13, java.vendor=AdoptOpenJDK, java.version=11.0.1, java.vm.version=11.0.1+13, lucene.version=7.7.1, os=Linux, os.arch=amd64, os.version=3.16.0-5-amd64, source=flush, timestamp=1558507812631}]:[attributes={Lucene50StoredFieldsFormat.mode=BEST_SPEED}]
      DW 0 [2019-05-22T09:24:14.405Z; main]: startFullFlush
      IW 0 [2019-05-22T09:24:14.405Z; main]: now apply all deletes for all segments buffered updates bytesUsed=0 reader pool bytesUsed=0
      BD 0 [2019-05-22T09:24:14.406Z; main]: waitApply: no deletes to apply
      DW 0 [2019-05-22T09:24:14.406Z; main]: main finishFullFlush success=true
      IW 0 [2019-05-22T09:24:14.406Z; main]: startCommit(): start
      IW 0 [2019-05-22T09:24:14.406Z; main]:   skip startCommit(): no changes pending
      IW 0 [2019-05-22T09:24:14.407Z; main]: commit: pendingCommit == null; skip
      IW 0 [2019-05-22T09:24:14.407Z; main]: commit: took 2.2 msec
      IW 0 [2019-05-22T09:24:14.407Z; main]: commit: done
      IW 0 [2019-05-22T09:24:14.407Z; main]: rollback
      IW 0 [2019-05-22T09:24:14.407Z; main]: all running merges have aborted
      IW 0 [2019-05-22T09:24:14.408Z; main]: rollback: done finish merges
      DW 0 [2019-05-22T09:24:14.408Z; main]: abort
      DW 0 [2019-05-22T09:24:14.408Z; main]: done abort success=true
      IW 0 [2019-05-22T09:24:14.409Z; main]: rollback: infos=_11nw3(7.7.1):C16557/1395:[diagnostics={os=Linux, java.vendor=AdoptOpenJDK, java.version=11.0.1, java.vm.version=11.0.1+13, lucene.version=7.7.1, mergeMaxNumSegments=-1, os.arch=amd64, java.runtime.version=11.0.1+13, source=merge, mergeFactor=10, os.version=3.16.0-5-amd64, timestamp=1558499119537}]:[attributes={Lucene50StoredFieldsFormat.mode=BEST_SPEED}]:delGen=133 _11o9p(7.7.1):c798:[diagnostics={os=Linux, java.vendor=AdoptOpenJDK, java.version=11.0.1, java.vm.version=11.0.1+13, lucene.version=7.7.1, mergeMaxNumSegments=-1, os.arch=amd64, java.runtime.version=11.0.1+13, source=merge, mergeFactor=10, os.version=3.16.0-5-amd64, timestamp=1558507559781}]:[attributes={Lucene50StoredFieldsFormat.mode=BEST_SPEED}] _11o9z(7.7.1):c797:[diagnostics={os=Linux, java.vendor=AdoptOpenJDK, java.version=11.0.1, java.vm.version=11.0.1+13, lucene.version=7.7.1, mergeMaxNumSegments=-1, os.arch=amd64, java.runtime.version=11.0.1+13, source=merge, mergeFactor=10, os.version=3.16.0-5-amd64, timestamp=1558507739341}]:[attributes={Lucene50StoredFieldsFormat.mode=BEST_SPEED}] _11oa0(7.7.1):C1:[diagnostics={java.runtime.version=11.0.1+13, java.vendor=AdoptOpenJDK, java.version=11.0.1, java.vm.version=11.0.1+13, lucene.version=7.7.1, os=Linux, os.arch=amd64, os.version=3.16.0-5-amd64, source=flush, timestamp=1558507750723}]:[attributes={Lucene50StoredFieldsFormat.mode=BEST_SPEED}] _11oa1(7.7.1):C2:[diagnostics={java.runtime.version=11.0.1+13, java.vendor=AdoptOpenJDK, java.version=11.0.1, java.vm.version=11.0.1+13, lucene.version=7.7.1, os=Linux, os.arch=amd64, os.version=3.16.0-5-amd64, source=flush, timestamp=1558507812631}]:[attributes={Lucene50StoredFieldsFormat.mode=BEST_SPEED}]
      IFD 0 [2019-05-22T09:24:14.409Z; main]: now checkpoint "_11nw3(7.7.1):C16557/1395:[diagnostics={os=Linux, java.vendor=AdoptOpenJDK, java.version=11.0.1, java.vm.version=11.0.1+13, lucene.version=7.7.1, mergeMaxNumSegments=-1, os.arch=amd64, java.runtime.version=11.0.1+13, source=merge, mergeFactor=10, os.version=3.16.0-5-amd64, timestamp=1558499119537}]:[attributes={Lucene50StoredFieldsFormat.mode=BEST_SPEED}]:delGen=133 _11o9p(7.7.1):c798:[diagnostics={os=Linux, java.vendor=AdoptOpenJDK, java.version=11.0.1, java.vm.version=11.0.1+13, lucene.version=7.7.1, mergeMaxNumSegments=-1, os.arch=amd64, java.runtime.version=11.0.1+13, source=merge, mergeFactor=10, os.version=3.16.0-5-amd64, timestamp=1558507559781}]:[attributes={Lucene50StoredFieldsFormat.mode=BEST_SPEED}] _11o9z(7.7.1):c797:[diagnostics={os=Linux, java.vendor=AdoptOpenJDK, java.version=11.0.1, java.vm.version=11.0.1+13, lucene.version=7.7.1, mergeMaxNumSegments=-1, os.arch=amd64, java.runtime.version=11.0.1+13, source=merge, mergeFactor=10, os.version=3.16.0-5-amd64, timestamp=1558507739341}]:[attributes={Lucene50StoredFieldsFormat.mode=BEST_SPEED}] _11oa0(7.7.1):C1:[diagnostics={java.runtime.version=11.0.1+13, java.vendor=AdoptOpenJDK, java.version=11.0.1, java.vm.version=11.0.1+13, lucene.version=7.7.1, os=Linux, os.arch=amd64, os.version=3.16.0-5-amd64, source=flush, timestamp=1558507750723}]:[attributes={Lucene50StoredFieldsFormat.mode=BEST_SPEED}] _11oa1(7.7.1):C2:[diagnostics={java.runtime.version=11.0.1+13, java.vendor=AdoptOpenJDK, java.version=11.0.1, java.vm.version=11.0.1+13, lucene.version=7.7.1, os=Linux, os.arch=amd64, os.version=3.16.0-5-amd64, source=flush, timestamp=1558507812631}]:[attributes={Lucene50StoredFieldsFormat.mode=BEST_SPEED}]" [5 segments ; isCommit = false]
      IFD 0 [2019-05-22T09:24:14.410Z; main]: 0 msec to checkpoint
      
      
      user@dev-appsolr2535:/home/user> java -cp '/opt/common/apps/apache-solr-8.1.0/server/solr-webapp/webapp/WEB-INF/lib/*' org.apache.lucene.index.IndexUpgrader -delete-prior-commits -verbose /opt/user/solr5-prog-fhh-storage-solr/solr/prog-fhh-storage-solr_shard4_replica_n259/data/index
      
      IW 0 [2019-05-22T09:24:25.031Z; main]: init: hit exception on init; releasing write lock
      Exception in thread "main" org.apache.lucene.index.IndexFormatTooOldException: Format version is not supported (resource BufferedChecksumIndexInput(MMapIndexInput(path="/opt/user/solr5-prog-fhh-storage-solr/solr/prog-fhh-storage-solr_shard4_replica_n259/data/index/segments_505u"))): This index was initially created with Lucene 6.x while the current version is 8.1.0 and Lucene only supports reading the current and previous major versions.. This version of Lucene only supports indexes created with release 7.0 and later.
      	at org.apache.lucene.index.SegmentInfos.readCommit(SegmentInfos.java:318)
      	at org.apache.lucene.index.SegmentInfos.readCommit(SegmentInfos.java:289)
      	at org.apache.lucene.index.IndexWriter.<init>(IndexWriter.java:846)
      	at org.apache.lucene.index.IndexUpgrader.upgrade(IndexUpgrader.java:167)
      	at org.apache.lucene.index.IndexUpgrader.main(IndexUpgrader.java:78)
      

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            monti Henrik
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              Updated:
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