TxTDB problem during concurrent execution
-----------------------------------------
Key: JENA-131
URL: https://issues.apache.org/jira/browse/JENA-131
Project: Jena
Issue Type: Bug
Components: TDB
Environment: arq-2.8.9-20111001.145524-39 and
tx-tdb-0.9.0-20111006.082548-13 on IBM JRE 6
Reporter: Simon Helsen
In a massive concurrent test with many reads and writes, I am running into the
problems shown below. I suspect the problem only occurs if a read and write are
trying to operate on the same data at the same time, i.e. the transactions
don't isolate enough. My test case is inside the framework. I currently have no
test case for you to try, but I am hoping you can see something by inspecting
the stack trace
ModelWriteActivity: 1579ms
17:46:27,183 [1948218399@qtp-533667791-14] WARN
hpl.jena.sparql.engine.iterator.QueryIteratorCheck - Open iterator:
QueryIterConcat/55657
17:46:27,254 [1948218399@qtp-533667791-14] WARN
hpl.jena.sparql.engine.iterator.QueryIteratorCheck - Open iterator:
QueryIterSingleton/55658
17:46:27,257 [1948218399@qtp-533667791-14] WARN
hpl.jena.sparql.engine.iterator.QueryIteratorCheck - Open iterator:
QueryIterPeek/55659
17:46:27,261 [1948218399@qtp-533667791-14] WARN
hpl.jena.sparql.engine.iterator.QueryIteratorCheck - Open iterator:
QueryIterTDB/55660
17:46:27,264 [1948218399@qtp-533667791-14] WARN
hpl.jena.sparql.engine.iterator.QueryIteratorCheck - Open iterator:
QueryIterOptionalIndex/55661
17:46:27,335 [1948218399@qtp-533667791-14] WARN
hpl.jena.sparql.engine.iterator.QueryIteratorCheck - Open iterator:
QueryIterOptionalIndex/55662
17:46:27,338 [1948218399@qtp-533667791-14] WARN
hpl.jena.sparql.engine.iterator.QueryIteratorCheck - Open iterator:
QueryIterDefaulting/55803
17:46:27,395 [1948218399@qtp-533667791-14] WARN
hpl.jena.sparql.engine.iterator.QueryIteratorCheck - Open iterator:
QueryIterDefaulting/55807
17:46:27,399 [1948218399@qtp-533667791-14] WARN
hpl.jena.sparql.engine.iterator.QueryIteratorCheck - Open iterator:
QueryIterPeek/55808
17:46:27,403 [1948218399@qtp-533667791-14] WARN
hpl.jena.sparql.engine.iterator.QueryIteratorCheck - Open iterator:
QueryIterTDB/55809
17:46:27,406 [1948218399@qtp-533667791-14] WARN
hpl.jena.sparql.engine.iterator.QueryIteratorCheck - Open iterator:
QueryIterAssign/55810
17:46:27,410 [1948218399@qtp-533667791-14] WARN
hpl.jena.sparql.engine.iterator.QueryIteratorCheck - Open iterator:
QueryIterSingleton/55811
17:46:27,490 [1948218399@qtp-533667791-14] WARN
hpl.jena.sparql.engine.iterator.QueryIteratorCheck - Open iterator:
QueryIterPeek/55812
17:46:27,493 [1948218399@qtp-533667791-14] WARN
hpl.jena.sparql.engine.iterator.QueryIteratorCheck - Open iterator:
QueryIterTDB/55813
17:46:27,497 [1948218399@qtp-533667791-14] WARN
hpl.jena.sparql.engine.iterator.QueryIteratorCheck - Open iterator:
QueryIterOptionalIndex/55814
17:46:27,502 [1948218399@qtp-533667791-14] WARN
hpl.jena.sparql.engine.iterator.QueryIteratorCheck - Open iterator:
QueryIterOptionalIndex/55815
17:46:27,507 [1948218399@qtp-533667791-14] ERROR com.ibm.team.jfs
- Originating Exception:
java.lang.IndexOutOfBoundsException: Index: 20, Size: 18
at java.util.ArrayList.remove(ArrayList.java:552)
at java.util.ArrayList.remove(ArrayList.java:572)
at
com.hp.hpl.jena.tdb.transaction.Transaction.removeIterator(Transaction.java:188)
at
com.hp.hpl.jena.tdb.transaction.BlockMgrJournal.endIterator(BlockMgrJournal.java:312)
at
com.hp.hpl.jena.tdb.transaction.BlockMgrJournal.endIterator(BlockMgrJournal.java:313)
at
com.hp.hpl.jena.tdb.base.block.BlockMgrWrapper.endIterator(BlockMgrWrapper.java:134)
at
com.hp.hpl.jena.tdb.base.recordbuffer.RecordRangeIterator.close(RecordRangeIterator.java:155)
at
com.hp.hpl.jena.tdb.base.recordbuffer.RecordRangeIterator.hasNext(RecordRangeIterator.java:112)
at org.openjena.atlas.iterator.Iter$4.hasNext(Iter.java:274)
at
com.hp.hpl.jena.tdb.sys.DatasetControlMRSW$IteratorCheckNotConcurrent.hasNext(DatasetControlMRSW.java:119)
at org.openjena.atlas.iterator.Iter$3.hasNext(Iter.java:164)
at org.openjena.atlas.iterator.Iter$6.hasNext(Iter.java:359)
at org.openjena.atlas.iterator.Iter$3.hasNext(Iter.java:164)
at org.openjena.atlas.iterator.Iter$4.hasNext(Iter.java:274)
at org.openjena.atlas.iterator.Iter$3.hasNext(Iter.java:164)
at org.openjena.atlas.iterator.Iter.hasNext(Iter.java:742)
at
org.openjena.atlas.iterator.RepeatApplyIterator.hasNext(RepeatApplyIterator.java:58)
at
org.openjena.atlas.iterator.RepeatApplyIterator.hasNext(RepeatApplyIterator.java:46)
at
org.openjena.atlas.iterator.RepeatApplyIterator.hasNext(RepeatApplyIterator.java:46)
at
org.openjena.atlas.iterator.RepeatApplyIterator.hasNext(RepeatApplyIterator.java:46)
at
org.openjena.atlas.iterator.RepeatApplyIterator.hasNext(RepeatApplyIterator.java:46)
at org.openjena.atlas.iterator.Iter$4.hasNext(Iter.java:274)
at
com.hp.hpl.jena.sparql.engine.iterator.QueryIterPlainWrapper.hasNextBinding(QueryIterPlainWrapper.java:54)
at
com.hp.hpl.jena.sparql.engine.iterator.QueryIteratorBase.hasNext(QueryIteratorBase.java:107)
at
com.hp.hpl.jena.sparql.engine.iterator.QueryIterRepeatApply.makeNextStage(QueryIterRepeatApply.java:106)
at
com.hp.hpl.jena.sparql.engine.iterator.QueryIterRepeatApply.hasNextBinding(QueryIterRepeatApply.java:65)
at
com.hp.hpl.jena.sparql.engine.iterator.QueryIteratorBase.hasNext(QueryIteratorBase.java:107)
at
com.hp.hpl.jena.sparql.engine.iterator.QueryIterRepeatApply.makeNextStage(QueryIterRepeatApply.java:106)
at
com.hp.hpl.jena.sparql.engine.iterator.QueryIterRepeatApply.hasNextBinding(QueryIterRepeatApply.java:65)
at
com.hp.hpl.jena.sparql.engine.iterator.QueryIteratorBase.hasNext(QueryIteratorBase.java:107)
at
com.hp.hpl.jena.tdb.solver.OpExecutorTDB.optimizeExecuteQuads(OpExecutorTDB.java:215)
at
com.hp.hpl.jena.tdb.solver.OpExecutorTDB.execute(OpExecutorTDB.java:152)
at
com.hp.hpl.jena.sparql.engine.main.ExecutionDispatch.visit(ExecutionDispatch.java:63)
at
com.hp.hpl.jena.sparql.algebra.op.OpQuadPattern.visit(OpQuadPattern.java:97)
at
com.hp.hpl.jena.sparql.engine.main.ExecutionDispatch.exec(ExecutionDispatch.java:43)
at
com.hp.hpl.jena.sparql.engine.main.OpExecutor.executeOp(OpExecutor.java:119)
at
com.hp.hpl.jena.sparql.engine.main.OpExecutor.execute(OpExecutor.java:208)
at
com.hp.hpl.jena.sparql.engine.main.ExecutionDispatch.visit(ExecutionDispatch.java:105)
at
com.hp.hpl.jena.sparql.algebra.op.OpSequence.visit(OpSequence.java:73)
at
com.hp.hpl.jena.sparql.engine.main.ExecutionDispatch.exec(ExecutionDispatch.java:45)
at
com.hp.hpl.jena.sparql.engine.main.OpExecutor.executeOp(OpExecutor.java:119)
at
com.hp.hpl.jena.sparql.engine.main.OpExecutor.execute(OpExecutor.java:464)
at
com.hp.hpl.jena.sparql.engine.main.ExecutionDispatch.visit(ExecutionDispatch.java:246)
at com.hp.hpl.jena.sparql.algebra.op.OpAssign.visit(OpAssign.java:116)
at
com.hp.hpl.jena.sparql.engine.main.ExecutionDispatch.exec(ExecutionDispatch.java:45)
at
com.hp.hpl.jena.sparql.engine.main.OpExecutor.executeOp(OpExecutor.java:119)
at
com.hp.hpl.jena.sparql.engine.main.OpExecutor.execute(OpExecutor.java:92)
at com.hp.hpl.jena.sparql.engine.main.QC.execute(QC.java:52)
at
com.hp.hpl.jena.sparql.engine.main.iterator.QueryIterUnion.nextStage(QueryIterUnion.java:55)
at
com.hp.hpl.jena.sparql.engine.iterator.QueryIterRepeatApply.makeNextStage(QueryIterRepeatApply.java:113)
at
com.hp.hpl.jena.sparql.engine.iterator.QueryIterRepeatApply.hasNextBinding(QueryIterRepeatApply.java:65)
at
com.hp.hpl.jena.sparql.engine.iterator.QueryIteratorBase.hasNext(QueryIteratorBase.java:107)
at
com.hp.hpl.jena.sparql.engine.iterator.QueryIterConvert.hasNextBinding(QueryIterConvert.java:65)
at
com.hp.hpl.jena.sparql.engine.iterator.QueryIteratorBase.hasNext(QueryIteratorBase.java:107)
at
com.hp.hpl.jena.sparql.engine.iterator.QueryIterSlice.hasNextBinding(QueryIterSlice.java:76)
at
com.hp.hpl.jena.sparql.engine.iterator.QueryIteratorBase.hasNext(QueryIteratorBase.java:107)
at
com.hp.hpl.jena.sparql.engine.iterator.QueryIteratorWrapper.hasNextBinding(QueryIteratorWrapper.java:40)
at
com.hp.hpl.jena.sparql.engine.iterator.QueryIteratorBase.hasNext(QueryIteratorBase.java:107)
at
com.hp.hpl.jena.sparql.engine.iterator.QueryIteratorWrapper.hasNextBinding(QueryIteratorWrapper.java:40)
at
com.hp.hpl.jena.sparql.engine.iterator.QueryIteratorBase.hasNext(QueryIteratorBase.java:107)
at
com.hp.hpl.jena.sparql.engine.ResultSetStream.hasNext(ResultSetStream.java:70)
at
com.hp.hpl.jena.sparql.engine.QueryExecutionBase.execDescribe(QueryExecutionBase.java:278)
at
com.hp.hpl.jena.sparql.engine.QueryExecutionBase.execDescribe(QueryExecutionBase.java:256)
<snip>
DataSetReadActivity: 1249ms
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