[YARN-3385] Race condition: KeeperException$NoNodeException will cause RM shutdown during ZK node deletion.

• Type: Bug
• Status: Closed
• Priority: Critical
• Resolution: Fixed
• Fix Version/s: 2.8.0, 2.7.1, 3.0.0-alpha1
• Component/s: resourcemanager
• Target Version/s: 2.8.0
• Hadoop Flags: Reviewed
• Assignee: Zhihai Xu
• Reporter: Zhihai Xu
• Created: 22/Mar/15 18:12
• Updated: 06/Jan/17 00:49
• Resolved: 07/May/15 00:59

Description

Race condition: KeeperException$NoNodeException will cause RM shutdown during ZK node deletion(Op.delete).
The race condition is similar as YARN-3023.
since the race condition exists for ZK node creation, it should also exist for ZK node deletion.
We see this issue with the following stack trace:

2015-03-17 19:18:58,958 FATAL org.apache.hadoop.yarn.server.resourcemanager.ResourceManager: Received a org.apache.hadoop.yarn.server.resourcemanager.RMFatalEvent of type STATE_STORE_OP_FAILED. Cause:
org.apache.zookeeper.KeeperException$NoNodeException: KeeperErrorCode = NoNode
	at org.apache.zookeeper.KeeperException.create(KeeperException.java:111)
	at org.apache.zookeeper.ZooKeeper.multiInternal(ZooKeeper.java:945)
	at org.apache.zookeeper.ZooKeeper.multi(ZooKeeper.java:911)
	at org.apache.hadoop.yarn.server.resourcemanager.recovery.ZKRMStateStore$4.run(ZKRMStateStore.java:857)
	at org.apache.hadoop.yarn.server.resourcemanager.recovery.ZKRMStateStore$4.run(ZKRMStateStore.java:854)
	at org.apache.hadoop.yarn.server.resourcemanager.recovery.ZKRMStateStore$ZKAction.runWithCheck(ZKRMStateStore.java:973)
	at org.apache.hadoop.yarn.server.resourcemanager.recovery.ZKRMStateStore$ZKAction.runWithRetries(ZKRMStateStore.java:992)
	at org.apache.hadoop.yarn.server.resourcemanager.recovery.ZKRMStateStore.doMultiWithRetries(ZKRMStateStore.java:854)
	at org.apache.hadoop.yarn.server.resourcemanager.recovery.ZKRMStateStore.removeApplicationStateInternal(ZKRMStateStore.java:647)
	at org.apache.hadoop.yarn.server.resourcemanager.recovery.RMStateStore.handleStoreEvent(RMStateStore.java:691)
	at org.apache.hadoop.yarn.server.resourcemanager.recovery.RMStateStore$ForwardingEventHandler.handle(RMStateStore.java:766)
	at org.apache.hadoop.yarn.server.resourcemanager.recovery.RMStateStore$ForwardingEventHandler.handle(RMStateStore.java:761)
	at org.apache.hadoop.yarn.event.AsyncDispatcher.dispatch(AsyncDispatcher.java:173)
	at org.apache.hadoop.yarn.event.AsyncDispatcher$1.run(AsyncDispatcher.java:106)
	at java.lang.Thread.run(Thread.java:745)
2015-03-17 19:18:58,959 INFO org.apache.hadoop.util.ExitUtil: Exiting with status 1

Issue Links

• relates to: YARN-3023 Race condition in ZKRMStateStore#createWithRetries from ZooKeeper cause RM crash