Paul, This could be related to the wrapper bug found if you are running the server. If the server was under heavy load and entered GC trashing (JVM stopping all threads just running GC) the wrapper thought the server was unresponsive and restarted it. This problem will be fixed in the 1.4.M05 release.
Regards, Johan On Tue, Jun 21, 2011 at 1:22 PM, Paul Bandler <[email protected]> wrote: > The above exception is thrown from the call stack indicated below while > traversing a neo4j graph using the EmbedesReadOnly database. Using 1.4M04. > > The application is running with 1gb of heap with defaulting all other > parameters except cache_type=weak on windows. > > I found some reports of this exception being thrown at shutdown back > in January but this is not happening at shutdown and I could find no posted > resolution of that thread anyway. > > Can anyone suggest what the cause if this exception is? > > Thanks > > Paul > >> > >> Exception in thread "main" java.nio.channels.NonWritableChannelException >> at sun.nio.ch.FileChannelImpl.write(Unknown Source) >> at >> org.neo4j.kernel.impl.nioneo.store.AbstractPersistenceWindow.writeOut(AbstractPersistenceWindow.java:104) >> at >> org.neo4j.kernel.impl.nioneo.store.PersistenceWindowPool.refreshBricks(PersistenceWindowPool.java:536) >> at >> org.neo4j.kernel.impl.nioneo.store.PersistenceWindowPool.acquire(PersistenceWindowPool.java:128) >> at >> org.neo4j.kernel.impl.nioneo.store.CommonAbstractStore.acquireWindow(CommonAbstractStore.java:526) >> at >> org.neo4j.kernel.impl.nioneo.store.RelationshipStore.getChainRecord(RelationshipStore.java:327) >> at >> org.neo4j.kernel.impl.nioneo.xa.ReadTransaction.getMoreRelationships(ReadTransaction.java:114) >> at >> org.neo4j.kernel.impl.nioneo.xa.ReadTransaction.getMoreRelationships(ReadTransaction.java:97) >> at >> org.neo4j.kernel.impl.persistence.PersistenceManager.getMoreRelationships(PersistenceManager.java:108) >> at >> org.neo4j.kernel.impl.core.NodeManager.getMoreRelationships(NodeManager.java:603) >> at >> org.neo4j.kernel.impl.core.NodeImpl.getMoreRelationships(NodeImpl.java:399) >> at >> org.neo4j.kernel.impl.core.IntArrayIterator.hasNext(IntArrayIterator.java:93) >> at >> org.neo4j.kernel.impl.core.NodeImpl.getSingleRelationship(NodeImpl.java:218) _______________________________________________ Neo4j mailing list [email protected] https://lists.neo4j.org/mailman/listinfo/user
