Eric Shu created GEODE-9944:
-------------------------------
Summary: NPE could occur if HARegion is being created again but
not fully initialized
Key: GEODE-9944
URL: https://issues.apache.org/jira/browse/GEODE-9944
Project: Geode
Issue Type: Bug
Components: client queues
Reporter: Eric Shu
The stack trace for the NPE is:
{noformat}
fatal 2022/01/08 12:45:33.175 PST bridgegemfire7_host1_25026 <Pooled Message
Processor 7> tid=0x148] Uncaught exception processing
QueueSynchronizationProcessor$QueueSynchronizationMessage@340d586b
processorId=4029
sender=rs-FullRegression15142100a3i3large-hydra-client-18(bridgegemfire6_host1_25009:25009)<ec><v5>:41006
java.lang.NullPointerException
at
org.apache.geode.internal.cache.ha.QueueSynchronizationProcessor$QueueSynchronizationMessage.getDispatchedEvents(QueueSynchronizationProcessor.java:160)
at
org.apache.geode.internal.cache.ha.QueueSynchronizationProcessor$QueueSynchronizationMessage.process(QueueSynchronizationProcessor.java:127)
at
org.apache.geode.distributed.internal.DistributionMessage.scheduleAction(DistributionMessage.java:376)
at
org.apache.geode.distributed.internal.DistributionMessage$1.run(DistributionMessage.java:441)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at
org.apache.geode.distributed.internal.ClusterOperationExecutors.runUntilShutdown(ClusterOperationExecutors.java:444)
at
org.apache.geode.distributed.internal.ClusterOperationExecutors.doProcessingThread(ClusterOperationExecutors.java:391)
at
org.apache.geode.logging.internal.executors.LoggingThreadFactory.lambda$newThread$0(LoggingThreadFactory.java:120)
at java.lang.Thread.run(Thread.java:748)
{noformat}
This could occur when a client is not able to re-auth in time, and the server
removes the HARegionQueue to the client. When the client is able to re-auth
later, the new HARegionQueue is created again. There is a race that when the
server process the above message, the HARegionQueue is not fully initialized
and cause this NPE.
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