[CASSANDRA-6671] NoSuchElementException in trunk

• Type: Bug
• Status: Resolved
• Priority: Normal
• Resolution: Fixed
• Fix Version/s: 2.1 beta1
• Severity: Normal
• Assignee: Benedict Elliott Smith
• Reporter: Tom Hobbs

Authors

Benedict Elliott Smith

Reviewers

Jonathan Ellis

• Created: 07/Feb/14 01:25
• Updated: 16/Apr/19 09:31
• Resolved: 07/Feb/14 02:29

Description

When running cassandra-stress -o 10000000 from cassandra-1.2 against the latest trunk, I noticed this error in the system log:

ERROR 01:13:11 Exception in thread Thread[MutationStage:68,5,main]
java.lang.RuntimeException: java.util.NoSuchElementException
	at org.apache.cassandra.service.StorageProxy$LocalMutationRunnable.run(StorageProxy.java:2063) ~[main/:na]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) ~[na:1.7.0_40]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) ~[na:1.7.0_40]
	at java.lang.Thread.run(Thread.java:724) ~[na:1.7.0_40]
Caused by: java.util.NoSuchElementException: null
	at java.util.concurrent.ConcurrentLinkedDeque.screenNullResult(ConcurrentLinkedDeque.java:812) ~[na:1.7.0_40]
	at java.util.concurrent.ConcurrentLinkedDeque.getLast(ConcurrentLinkedDeque.java:963) ~[na:1.7.0_40]
	at org.apache.cassandra.utils.concurrent.WaitQueue.signalAll(WaitQueue.java:122) ~[main/:na]
	at org.apache.cassandra.utils.concurrent.OpOrder$Group.unlink(OpOrder.java:254) ~[main/:na]
	at org.apache.cassandra.utils.concurrent.OpOrder$Group.finishOne(OpOrder.java:209) ~[main/:na]
	at org.apache.cassandra.db.commitlog.CommitLogSegment$Allocation.markWritten(CommitLogSegment.java:581) ~[main/:na]
	at org.apache.cassandra.db.commitlog.CommitLog.add(CommitLog.java:231) ~[main/:na]
	at org.apache.cassandra.db.commitlog.CommitLog.add(CommitLog.java:193) ~[main/:na]
	at org.apache.cassandra.db.Keyspace.apply(Keyspace.java:349) ~[main/:na]
	at org.apache.cassandra.db.Keyspace.apply(Keyspace.java:328) ~[main/:na]
	at org.apache.cassandra.db.Mutation.apply(Mutation.java:205) ~[main/:na]
	at org.apache.cassandra.service.StorageProxy$7.runMayThrow(StorageProxy.java:997) ~[main/:na]
	at org.apache.cassandra.service.StorageProxy$LocalMutationRunnable.run(StorageProxy.java:2059) ~[main/:na]
	... 3 common frames omitted

I'm not sure what the implications are.