[CASSANDRA-5631] NPE when creating column family shortly after multinode startup

• Type: Bug
• Status: Resolved
• Priority: Normal
• Resolution: Fixed
• Fix Version/s: 1.2.16, 2.0.6, 2.1 beta1
• Severity: Normal
• Assignee: Aleksey Yeschenko
• Reporter: Martin Serrano

Authors

Aleksey Yeschenko

Reviewers

Sylvain Lebresne

• Created: 12/Jun/13 19:27
• Updated: 16/Apr/19 09:32
• Resolved: 19/Feb/14 19:28

Description

I'm testing a 2-node cluster and creating a column family right after the nodes startup. I am using the Astyanax client. Sometimes column family creation fails and I see NPEs on the cassandra server:

2013-06-12 14:55:31,773 ERROR CassandraDaemon [MigrationStage:1] - Exception in thread Thread[MigrationStage:1,5,main]
java.lang.NullPointerException
	at org.apache.cassandra.db.DefsTable.addColumnFamily(DefsTable.java:510)
	at org.apache.cassandra.db.DefsTable.mergeColumnFamilies(DefsTable.java:444)
	at org.apache.cassandra.db.DefsTable.mergeSchema(DefsTable.java:354)
	at org.apache.cassandra.db.DefinitionsUpdateVerbHandler$1.runMayThrow(DefinitionsUpdateVerbHandler.java:55)
	at org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:28)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
	at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
	at java.util.concurrent.FutureTask.run(FutureTask.java:166)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:722)

2013-06-12 14:55:31,880 ERROR CassandraDaemon [MigrationStage:1] - Exception in thread Thread[MigrationStage:1,5,main]
java.lang.NullPointerException
	at org.apache.cassandra.db.DefsTable.mergeColumnFamilies(DefsTable.java:475)
	at org.apache.cassandra.db.DefsTable.mergeSchema(DefsTable.java:354)
	at org.apache.cassandra.db.DefinitionsUpdateVerbHandler$1.runMayThrow(DefinitionsUpdateVerbHandler.java:55)
	at org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:28)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
	at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
	at java.util.concurrent.FutureTask.run(FutureTask.java:166)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:722)