[CASSANDRA-3832] gossip stage backed up due to migration manager future de-ref

• Type: Bug
• Status: Resolved
• Priority: Urgent
• Resolution: Fixed
• Fix Version/s: 1.1.0
• Severity: Critical
• Assignee: Peter Schuller
• Reporter: Peter Schuller

Authors

Peter Schuller

Reviewers

Jonathan Ellis

• Created: 01/Feb/12 23:45
• Updated: 16/Apr/19 09:32
• Resolved: 09/Feb/12 10:14

Description

This is just bootstrapping a ~ 180 trunk cluster. After a while, a
node I was on was stuck with thinking all nodes are down, because
gossip stage was backed up, because it was spending a long time
(multiple seconds or more, I suppose RPC timeout maybe) doing the
following. Cluster-wide restart -> back to normal. I have not
investigated further.

"GossipStage:1" daemon prio=10 tid=0x00007f9d5847a800 nid=0xa6fc waiting on condition [0x000000004345f000]
   java.lang.Thread.State: WAITING (parking)
	at sun.misc.Unsafe.park(Native Method)
	- parking to wait for  <0x00000005029ad1c0> (a java.util.concurrent.FutureTask$Sync)
	at java.util.concurrent.locks.LockSupport.park(LockSupport.java:158)
	at java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:811)
	at java.util.concurrent.locks.AbstractQueuedSynchronizer.doAcquireSharedInterruptibly(AbstractQueuedSynchronizer.java:969)
	at java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireSharedInterruptibly(AbstractQueuedSynchronizer.java:1281)
	at java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:218)
	at java.util.concurrent.FutureTask.get(FutureTask.java:83)
	at org.apache.cassandra.utils.FBUtilities.waitOnFuture(FBUtilities.java:364)
	at org.apache.cassandra.service.MigrationManager.rectifySchema(MigrationManager.java:132)
	at org.apache.cassandra.service.MigrationManager.onAlive(MigrationManager.java:75)
	at org.apache.cassandra.gms.Gossiper.markAlive(Gossiper.java:802)
	at org.apache.cassandra.gms.Gossiper.applyStateLocally(Gossiper.java:918)
	at org.apache.cassandra.gms.GossipDigestAckVerbHandler.doVerb(GossipDigestAckVerbHandler.java:68)

Issue Links

• is related to: CASSANDRA-3882 avoid distributed deadlock in migration stage