[infinispan-issues] [JBoss JIRA] (ISPN-2588) Lock leak during state transfer (causing StaleLocksTransactionTest to fail)

Lock leak during state transfer (causing StaleLocksTransactionTest to fail) --------------------------------------------------------------------------- Key: ISPN-2588 URL: https://issues.jboss.org/browse/ISPN-2588 Project: Infinispan Issue Type: Bug Components: State transfer Affects Versions: 5.2.0.Beta5 Reporter: Mircea Markus Assignee: Dan Berindei Fix For: 5.2.0.Beta6 Attachments: StaleLocksTransactionTest.zip numOwners=1, pessimistic cache (same applies if A is the only node in cluster) 1. tx1 running on A with writes on k, lockOwner(k) == {A} 2. A.tx1.lock(k), this doesn't go remotely, and control returns in the InterceptorStack 3. at this point B is started and lockOwner(k) == {B} 4. the StateTransferInterceptor forwards the command to B which acquires the lock locally 5. this is followed by a tx.commit/rollback that would not send the message to B. The logic which determines whether the message to be sent remotely or not is in DistributionInterceptor.visitCommitCommand, which invokes: {code:java} protected boolean shouldInvokeRemoteTxCommand(TxInvocationContext ctx) { return ctx.isOriginLocal() && (ctx.hasModifications() || !((LocalTxInvocationContext) ctx).getRemoteLocksAcquired().isEmpty()); } {code} The problem here is that, when forwarding, we don't register the remote node as a locked.I think a more generic solution would also work, e.g. if the viewId of the tx is different from the viewId of the cluster at commit time, always go remotely.