Hello,
I am testing Neo4j for a week now and i'm trying to make some operations on
the Graph concurrent.
For this I use the PoolExecutor and do some Write-Operations. but the
TransactionManager just throws Exceptions i don't understand.
F.ex.:
javax.transaction.xa.XAException: Unknown
xid[GlobalId[NEOKERNL|1272272945279|2], BranchId[ 52 49 52 49 52 49 ]]
at
org.neo4j.kernel.impl.transaction.xaframework.XaResourceManager.rollback(XaResourceManager.java:416)
at
org.neo4j.kernel.impl.transaction.xaframework.XaResourceHelpImpl.rollback(XaResourceHelpImpl.java:111)
at
org.neo4j.kernel.impl.transaction.TransactionImpl.doRollback(TransactionImpl.java:531)
at
org.neo4j.kernel.impl.transaction.TxManager.rollback(TxManager.java:728)
at
org.neo4j.kernel.impl.transaction.TransactionImpl.rollback(TransactionImpl.java:114)
at
org.neo4j.kernel.EmbeddedGraphDbImpl$TransactionImpl.finish(EmbeddedGraphDbImpl.java:336)
at ConcurrentTest$1.run(ConcurrentTest.java:62)
at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:619)
26.04.2010 11:09:05 org.neo4j.kernel.impl.transaction.TxManager rollback
SCHWERWIEGEND: Unable to rollback marked or active transaction. Some
resources may be commited others not. Neo4j kernel should be SHUTDOWN for
resource maintance and transaction recovery ---->
Exception in thread "pool-1-thread-1"
org.neo4j.kernel.impl.transaction.TransactionFailureException: Unable to
rollback transaction
at
org.neo4j.kernel.EmbeddedGraphDbImpl$TransactionImpl.finish(EmbeddedGraphDbImpl.java:349)
at ConcurrentTest$1.run(ConcurrentTest.java:62)
at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:619)
Caused by: javax.transaction.SystemException: Unable to rollback --->
error code for rollback: 0
at
org.neo4j.kernel.impl.transaction.TxManager.rollback(TxManager.java:738)
at
org.neo4j.kernel.impl.transaction.TransactionImpl.rollback(TransactionImpl.java:114)
at
org.neo4j.kernel.EmbeddedGraphDbImpl$TransactionImpl.finish(EmbeddedGraphDbImpl.java:336)
... 4 more
This Exceptions are coming up already just with one Thread in the
ExcecutorPool. Thx for your help.
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