To close the thread. With modified testcase [1] the Lucene index file do not get updated.
> Is this switch from cfs format to storing in separate files is > automatic and done by Lucene after index reaches certain size. Or this > done something specifically in Oak? This is done because as per default setup Lucene uses following merge policy mergePolicy=[TieredMergePolicy: maxMergeAtOnce=10, maxMergeAtOnceExplicit=30, maxMergedSegmentMB=5120.0, floorSegmentMB=2.0, forceMergeDeletesPctAllowed=10.0, segmentsPerTier=10.0, maxCFSSegmentSizeMB=8.796093022207999E12, noCFSRatio=0.1 i When noCFSRatio crosses 0.1 then CFS file would not be used. Below is the IndexConfig state used to create the index ------------------------ dir=OakDirectory@79a302e9 lockFactory=org.apache.lucene.store.NoLockFactory@183ee75d index= version=4.7.1 1582953 - sarowe - 2014-03-29 00:33:55 matchVersion=LUCENE_47 analyzer=org.apache.jackrabbit.oak.plugins.index.lucene.OakAnalyzer ramBufferSizeMB=16.0 maxBufferedDocs=-1 maxBufferedDeleteTerms=-1 mergedSegmentWarmer=null readerTermsIndexDivisor=1 termIndexInterval=32 delPolicy=org.apache.lucene.index.KeepOnlyLastCommitDeletionPolicy commit=null openMode=CREATE_OR_APPEND similarity=org.apache.lucene.search.similarities.DefaultSimilarity mergeScheduler=org.apache.lucene.index.SerialMergeScheduler@7fe47c41 default WRITE_LOCK_TIMEOUT=1000 writeLockTimeout=1000 codec=Lucene46 infoStream=org.apache.lucene.util.PrintStreamInfoStream mergePolicy=[TieredMergePolicy: maxMergeAtOnce=10, maxMergeAtOnceExplicit=30, maxMergedSegmentMB=5120.0, floorSegmentMB=2.0, forceMergeDeletesPctAllowed=10.0, segmentsPerTier=10.0, maxCFSSegmentSizeMB=8.796093022207999E12, noCFSRatio=0.1 indexerThreadPool=org.apache.lucene.index.ThreadAffinityDocumentsWriterThreadPool@7199d0ff readerPooling=false perThreadHardLimitMB=1945 useCompoundFile=true ------------------------------ Chetan Mehrotra [1] http://svn.apache.org/r1634504
