FW: [Mondrian] deadlock in MemberCacheHelper

[Julian Hyde]

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"pool-2-thread-1" id=63 idx=0xf8 tid=8662 prio=5 alive, in native, blocked
     -- Blocked trying to get lock: mondrian/rolap/MemberCacheHelper at 0x25b1daf0[thin lock]
     at jrockit/vm/Threads.sleep(I)V(Native Method)
     at jrockit/vm/Locks.waitForThinRelease(Locks.java:1233)[optimized]
     at jrockit/vm/Locks.monitorEnterSecondStage(Locks.java:1307)[optimized]
     at mondrian/rolap/MemberCacheHelper.putMember(MemberCacheHelper.java:84)[optimized]
     at mondrian/rolap/SqlMemberSource.makeMember(SqlMemberSource.java:820)[inlined]
     at mondrian/rolap/RolapCubeHierarchy$RolapCubeSqlMemberSource.makeMember(RolapCubeHierarchy.java:693)[optimized]
     at mondrian/rolap/SqlTupleReader$Target.internalAddRow(SqlTupleReader.java:152)[inlined]
     at mondrian/rolap/SqlTupleReader$Target.addRow(SqlTupleReader.java:121)[inlined]
     at mondrian/rolap/SqlTupleReader.prepareTuples(SqlTupleReader.java:375)[optimized]
     ^-- Holding lock: mondrian/rolap/MemberCacheHelper at 0x25b1db50[thin lock]
     at mondrian/rolap/SqlTupleReader.readTuples(SqlTupleReader.java:443)[inlined]
     at mondrian/rolap/RolapNativeSet$SetEvaluator.executeList(RolapNativeSet.java:238)[inlined]
     at mondrian/rolap/RolapNativeSet$SetEvaluator.execute(RolapNativeSet.java:152)[optimized]
     at mondrian/olap/fun/NonEmptyCrossJoinFunDef$1.evaluateList(NonEmptyCrossJoinFunDef.java:54)[optimized]
...

"pool-2-thread-3" id=66 idx=0x104 tid=8666 prio=5 alive, in native, blocked
     -- Blocked trying to get lock: mondrian/rolap/MemberCacheHelper at 0x25b1db50[thin lock]
     at jrockit/vm/Threads.sleep(I)V(Native Method)
     at jrockit/vm/Locks.waitForThinRelease(Locks.java:1233)[optimized]
     at jrockit/vm/Locks.monitorEnterSecondStage(Locks.java:1307)[optimized]
     at mondrian/rolap/MemberCacheHelper.getMember(MemberCacheHelper.java:73)[inlined]
     at mondrian/rolap/RolapCubeHierarchy$RolapCubeHierarchyMemberReader.lookupCubeMember(RolapCubeHierarchy.java:617)[inlined]
     at mondrian/rolap/RolapCubeHierarchy$RolapCubeHierarchyMemberReader.readMemberChildren(RolapCubeHierarchy.java:475)[optimized]
     ^-- Holding lock: mondrian/rolap/MemberCacheHelper at 0x25b1daf0[recursive]
     at mondrian/rolap/SmartMemberReader.getMemberChildren(SmartMemberReader.java:201)[inlined]
     at mondrian/rolap/SmartMemberReader.getMemberChildren(SmartMemberReader.java:169)[optimized]
     ^-- Holding lock: mondrian/rolap/MemberCacheHelper at 0x25b1daf0[thin lock]
     at mondrian/rolap/RolapSchemaReader.internalGetMemberChildren(RolapSchemaReader.java:155)[inlined]
     at mondrian/rolap/RolapSchemaReader.lookupMemberChildByName(RolapSchemaReader.java:374)[optimized]
     at mondrian/rolap/RolapCubeMember.lookupChild(RolapCubeMember.java:319)[optimized]
     at mondrian/rolap/RolapSchemaReader.getElementChild(RolapSchemaReader.java:307)[inlined]
     at mondrian/olap/Util.lookupCompound(Util.java:563)[inlined]
     at mondrian/rolap/RolapSchemaReader.lookupCompound(RolapSchemaReader.java:345)[optimized]
     at mondrian/olap/DelegatingSchemaReader.lookupCompound(DelegatingSchemaReader.java:100)[inlined]
     at mondrian/olap/Query$QuerySchemaReader.lookupCompound(Query.java:1582)[inlined]
     at mondrian/olap/Query$QuerySchemaReader.lookupCompound(Query.java:1549)[optimized]
...