[GEODE-6886] Region Sync should not be invoked when lost member is an empty accessor of persistent replicate region

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.10.0
• Fix Version/s: 1.10.0
• Component/s: regions
• Assignee: Eric Shu
• Reporter: Eric Shu
• Created: 18/Jun/19 16:56
• Updated: 26/Sep/19 18:03
• Resolved: 19/Jun/19 17:06

Description

The following ClassCastException would be thrown:

[warn 2019/06/17 13:51:57.025 PDT <Timer-2> tid=0x39] Timer task <org.apache.geode.internal.cache.DistributedRegion$1@2cac9f7e> encountered exception
org.apache.geode.ToDataException: class org.apache.geode.internal.cache.versions.DiskRegionVersionVector
at org.apache.geode.internal.InternalDataSerializer.invokeToData(InternalDataSerializer.java:2331)
at org.apache.geode.internal.InternalDataSerializer.writeDSFID(InternalDataSerializer.java:1492)
at org.apache.geode.internal.InternalDataSerializer.basicWriteObject(InternalDataSerializer.java:2067)
at org.apache.geode.DataSerializer.writeObject(DataSerializer.java:2943)
at org.apache.geode.internal.cache.InitialImageOperation$RequestImageMessage.toData(InitialImageOperation.java:2138)
at org.apache.geode.internal.InternalDataSerializer.invokeToData(InternalDataSerializer.java:2300)
at org.apache.geode.internal.InternalDataSerializer.writeDSFID(InternalDataSerializer.java:1492)
at org.apache.geode.internal.tcp.MsgStreamer.writeMessage(MsgStreamer.java:242)
at org.apache.geode.distributed.internal.direct.DirectChannel.sendToMany(DirectChannel.java:385)
at org.apache.geode.distributed.internal.direct.DirectChannel.sendToOne(DirectChannel.java:241)
at org.apache.geode.distributed.internal.direct.DirectChannel.send(DirectChannel.java:596)
at org.apache.geode.distributed.internal.membership.gms.mgr.GMSMembershipManager.directChannelSend(GMSMembershipManager.java:1711)
at org.apache.geode.distributed.internal.membership.gms.mgr.GMSMembershipManager.send(GMSMembershipManager.java:1892)
at org.apache.geode.distributed.internal.ClusterDistributionManager.sendViaMembershipManager(ClusterDistributionManager.java:2852)
at org.apache.geode.distributed.internal.ClusterDistributionManager.sendOutgoing(ClusterDistributionManager.java:2779)
at org.apache.geode.distributed.internal.ClusterDistributionManager.sendMessage(ClusterDistributionManager.java:2816)
at org.apache.geode.distributed.internal.ClusterDistributionManager.putOutgoing(ClusterDistributionManager.java:1526)
at org.apache.geode.internal.cache.InitialImageOperation.synchronizeWith(InitialImageOperation.java:649)
at org.apache.geode.internal.cache.DistributedRegion.synchronizeWith(DistributedRegion.java:1338)
at org.apache.geode.internal.cache.DistributedRegion.synchronizeForLostMember(DistributedRegion.java:1327)
at org.apache.geode.internal.cache.DistributedRegion.performSynchronizeForLostMemberTask(DistributedRegion.java:1309)
at org.apache.geode.internal.cache.DistributedRegion$1.run2(DistributedRegion.java:1283)
at org.apache.geode.internal.SystemTimer$SystemTimerTask.run(SystemTimer.java:445)
at java.util.TimerThread.mainLoop(Timer.java:555)
at java.util.TimerThread.run(Timer.java:505)
Caused by: java.lang.ClassCastException: org.apache.geode.distributed.internal.membership.InternalDistributedMember cannot be cast to org.apache.geode.internal.cache.persistence.DiskStoreID
at org.apache.geode.internal.cache.versions.DiskRegionVersionVector.writeMember(DiskRegionVersionVector.java:30)
at org.apache.geode.internal.cache.versions.RegionVersionVector.toData(RegionVersionVector.java:1205)
at org.apache.geode.internal.InternalDataSerializer.invokeToData(InternalDataSerializer.java:2300)
... 24 more

The reason there is no need to sync with empty accessor is that it forwards the writes to actual region hosts, and only a host could generate a region version.

Issue Links

• links to: GitHub Pull Request #3721