[GEODE-2333] There is a race in GatewaySenderEventImpl.release() that could lead to offheap to be released more than once

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Component/s: offheap
• Assignee: Eric Shu
• Reporter: Eric Shu
• Created: 23/Jan/17 16:50
• Updated: 20/Apr/18 19:58
• Resolved: 23/Jan/17 21:41

Description

The following log shows that an offheap memory was unexpectedly freed.
[severe 2017/01/07 09:14:40.789 UTC bridgegemfire_1_1_rs-QueuesBTTest-2017-01-06-14-07-15-client-12_3912 <AckReaderThread for : Event Processor for GatewaySender_sender_bridgeds_1_to_bridgeds_2_0> tid=0x97] Stopping the processor because the following exception occurred while processing a batch:
java.lang.IllegalStateException: It looks like off heap memory @7f33a8000238 was already freed. rawBits=0 history=null
at org.apache.geode.internal.offheap.OffHeapStoredObject.release(OffHeapStoredObject.java:675)
at org.apache.geode.internal.offheap.OffHeapStoredObject.release(OffHeapStoredObject.java:659)
at org.apache.geode.internal.offheap.OffHeapStoredObject.release(OffHeapStoredObject.java:373)
at org.apache.geode.internal.offheap.OffHeapHelper.releaseAndTrackOwner(OffHeapHelper.java:138)
at org.apache.geode.internal.cache.wan.GatewaySenderEventImpl.release(GatewaySenderEventImpl.java:1213)
at org.apache.geode.internal.cache.wan.parallel.ParallelGatewaySenderQueue.remove(ParallelGatewaySenderQueue.java:1096)
at org.apache.geode.internal.cache.wan.parallel.ParallelGatewaySenderQueue.remove(ParallelGatewaySenderQueue.java:1531)
at org.apache.geode.internal.cache.wan.AbstractGatewaySenderEventProcessor.eventQueueRemove(AbstractGatewaySenderEventProcessor.java:231)
at org.apache.geode.internal.cache.wan.AbstractGatewaySenderEventProcessor.handleSuccessBatchAck(AbstractGatewaySenderEventProcessor.java:981)
at org.apache.geode.internal.cache.wan.GatewaySenderEventRemoteDispatcher$AckReaderThread.run(GatewaySenderEventRemoteDispatcher.java:636)