BufferUnderflowException with SegmentMK

Thu, 20 Mar 2014 01:21:08 -0700 


Hi,
Just seen this when running LargeOperationIT#manySiblings against revision 1579234. 

Michael

java.nio.BufferUnderflowException
        at java.nio.DirectByteBuffer.get(DirectByteBuffer.java:235)
        at java.nio.ByteBuffer.get(ByteBuffer.java:675)
at org.apache.jackrabbit.oak.plugins.segment.Segment.loadString(Segment.java:294) at org.apache.jackrabbit.oak.plugins.segment.Segment.readString(Segment.java:275) at org.apache.jackrabbit.oak.plugins.segment.Segment.readString(Segment.java:269) at org.apache.jackrabbit.oak.plugins.segment.MapRecord.getEntries(MapRecord.java:353) at org.apache.jackrabbit.oak.plugins.segment.MapRecord.getEntries(MapRecord.java:335) at org.apache.jackrabbit.oak.plugins.segment.MapRecord.getEntries(MapRecord.java:335) at org.apache.jackrabbit.oak.plugins.segment.MapRecord.getEntries(MapRecord.java:335) at org.apache.jackrabbit.oak.plugins.segment.MapRecord.getEntries(MapRecord.java:335) at org.apache.jackrabbit.oak.plugins.segment.MapRecord.getEntries(MapRecord.java:309) at org.apache.jackrabbit.oak.plugins.segment.SegmentNodeState.getChildNodeEntries(SegmentNodeState.java:366) at org.apache.jackrabbit.oak.plugins.memory.EmptyNodeState.compareAgainstEmptyState(EmptyNodeState.java:159) at org.apache.jackrabbit.oak.plugins.segment.SegmentNodeState.compareAgainstBaseState(SegmentNodeState.java:385) at org.apache.jackrabbit.oak.plugins.version.VersionablePathHook$Diff.childNodeChanged(VersionablePathHook.java:107) at org.apache.jackrabbit.oak.plugins.version.VersionablePathHook$Diff.childNodeAdded(VersionablePathHook.java:100) at org.apache.jackrabbit.oak.plugins.segment.MapRecord.compare(MapRecord.java:440) at org.apache.jackrabbit.oak.plugins.segment.SegmentNodeState.compareAgainstBaseState(SegmentNodeState.java:530) at org.apache.jackrabbit.oak.plugins.version.VersionablePathHook$Diff.childNodeChanged(VersionablePathHook.java:107) at org.apache.jackrabbit.oak.plugins.segment.MapRecord.compare(MapRecord.java:393) at org.apache.jackrabbit.oak.plugins.segment.SegmentNodeState.compareAgainstBaseState(SegmentNodeState.java:530) at org.apache.jackrabbit.oak.plugins.version.VersionablePathHook$Diff.childNodeChanged(VersionablePathHook.java:107) at org.apache.jackrabbit.oak.plugins.segment.MapRecord.compare(MapRecord.java:393) at org.apache.jackrabbit.oak.plugins.segment.SegmentNodeState.compareAgainstBaseState(SegmentNodeState.java:530) at org.apache.jackrabbit.oak.plugins.version.VersionablePathHook$Diff.childNodeChanged(VersionablePathHook.java:107) at org.apache.jackrabbit.oak.plugins.segment.SegmentNodeState.compareAgainstBaseState(SegmentNodeState.java:478) at org.apache.jackrabbit.oak.plugins.version.VersionablePathHook$Diff.childNodeChanged(VersionablePathHook.java:107) at org.apache.jackrabbit.oak.plugins.segment.MapRecord.compare(MapRecord.java:393) at org.apache.jackrabbit.oak.plugins.segment.SegmentNodeState.compareAgainstBaseState(SegmentNodeState.java:530) at org.apache.jackrabbit.oak.plugins.version.VersionablePathHook$Diff.childNodeChanged(VersionablePathHook.java:107) at org.apache.jackrabbit.oak.plugins.segment.MapRecord.compare(MapRecord.java:430) at org.apache.jackrabbit.oak.plugins.segment.SegmentNodeState.compareAgainstBaseState(SegmentNodeState.java:530) at org.apache.jackrabbit.oak.plugins.version.VersionablePathHook.processCommit(VersionablePathHook.java:66) at org.apache.jackrabbit.oak.spi.commit.CompositeHook.processCommit(CompositeHook.java:60) at org.apache.jackrabbit.oak.plugins.segment.SegmentNodeStore$Commit.prepare(SegmentNodeStore.java:266) at org.apache.jackrabbit.oak.plugins.segment.SegmentNodeStore$Commit.optimisticMerge(SegmentNodeStore.java:297) at org.apache.jackrabbit.oak.plugins.segment.SegmentNodeStore$Commit.execute(SegmentNodeStore.java:353) at org.apache.jackrabbit.oak.plugins.segment.SegmentNodeStore.merge(SegmentNodeStore.java:130) 
        at 
org.apache.jackrabbit.oak.core.MutableRoot.commit(MutableRoot.java:242)
at org.apache.jackrabbit.oak.jcr.delegate.SessionDelegate.commit(SessionDelegate.java:357) at org.apache.jackrabbit.oak.jcr.delegate.SessionDelegate.save(SessionDelegate.java:500) at org.apache.jackrabbit.oak.jcr.session.SessionImpl$8.perform(SessionImpl.java:414) at org.apache.jackrabbit.oak.jcr.session.SessionImpl$8.perform(SessionImpl.java:411) at org.apache.jackrabbit.oak.jcr.delegate.SessionDelegate.perform(SessionDelegate.java:263) at org.apache.jackrabbit.oak.jcr.session.SessionImpl.perform(SessionImpl.java:124) at org.apache.jackrabbit.oak.jcr.session.SessionImpl.save(SessionImpl.java:411) at org.apache.jackrabbit.oak.jcr.LargeOperationIT$4.run(LargeOperationIT.java:346) at org.apache.jackrabbit.oak.jcr.LargeOperationIT$ScalabilityTest.run(LargeOperationIT.java:493) at org.apache.jackrabbit.oak.jcr.LargeOperationIT.manySiblings(LargeOperationIT.java:349)

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