We found this strange behaviour with regard to transactions ( we use
neo1.3-SNAPSHOT)
Here are the steps in our application:
1. created,indexed and commited 10 nodes successfully
2. created, indexed and commited 40 nodes successfully
3. created, indexed and commited 900 nodes successfully
4. we found some app specific mistake in the step 3. So we removed indexes,
deleted 900 nodes and commited successfully.
5. we tried to query those deleted nodes just to confirm whether delete was
successful.
6. we were able to search for 900 (deleted)nodes from the index, and when we
tried to access a property of a (deleted) node, it threw the following
exception:
java.lang.IllegalStateException: Node[7599] has been deleted in this tx
at
org.neo4j.kernel.impl.core.LockReleaser.getCowPropertyRemoveMap(LockReleaser.java:445)
at
org.neo4j.kernel.impl.core.NodeManager.getCowPropertyRemoveMap(NodeManager.java:898)
at
org.neo4j.kernel.impl.core.Primitive.getPropertyKeys(Primitive.java:99)
at
org.neo4j.kernel.impl.core.NodeProxy.getPropertyKeys(NodeProxy.java:129)
at
neopoc.data.util.graphManager.getNodesProperties(graphManager.java:771)
7. As a result of the above exception, it rolled back step 1 & 2 as well. So
we lost all the nodes.
My suspicion is, even though we committed successfullly in the steps 1, 2,
3, 4, they were never internally committed. May be some kind of
differed/lazy commit and not immediate commit.
Thank you for your assistance.
-
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