Henrik created SOLR-13487:
-----------------------------

             Summary: Unable to upgrade Lucene 6.x index using IndexUpgrader
                 Key: SOLR-13487
                 URL: https://issues.apache.org/jira/browse/SOLR-13487
             Project: Solr
          Issue Type: Bug
      Security Level: Public (Default Security Level. Issues are Public)
          Components: scripts and tools, SolrCloud
    Affects Versions: 7.7.1, 8.1
            Reporter: Henrik


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-


{code}
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)
{code}



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