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From "stephen mallette (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (TINKERPOP-1252) Failed Neo4j transaction can leave Neo4jTransaction in inconsistent state
Date Thu, 07 Apr 2016 19:28:25 GMT

     [ https://issues.apache.org/jira/browse/TINKERPOP-1252?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

stephen mallette updated TINKERPOP-1252:
    Fix Version/s: 3.1.2-incubating

> Failed Neo4j transaction can leave Neo4jTransaction in inconsistent state
> -------------------------------------------------------------------------
>                 Key: TINKERPOP-1252
>                 URL: https://issues.apache.org/jira/browse/TINKERPOP-1252
>             Project: TinkerPop
>          Issue Type: Bug
>          Components: neo4j
>    Affects Versions: 3.1.1-incubating, 3.2.0-incubating
>            Reporter: Geoff Reedy
>            Priority: Blocker
>             Fix For: 3.2.0-incubating, 3.1.2-incubating
> For some transaction conflicts Neo4j will throw a DeadlockDetectedException from neo4japi.Neo4jTx#close().
When this happens, the thread that suffered this problem may experience a NotInTransactionException
on any further attempts to interact with the graph
> The problem starts when the abnormal termination of neo4japi.Neo4jTx#close() prevents
tp3.Neo4jTransaction's threadLocalTx.remove() from being called. The calling thread is now
associated with a closed neo4japi.Neo4jTx. Now tinkerpop believes that the thread already
has an open transaction but neo4j considers it to be closed.
> I've marked as blocker since there isn't any way to work around the problem once it has
occurred. I know that a code freeze for 3.2.0 is in effect now or shortly, but hopefully it
can be thawed enough to put this in.
> The fix is simple and expect to see a pull request shortly.

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