[CASSANDRA-11065] null pointer exception in CassandraDaemon.java:195

• Type: Bug
• Status: Resolved
• Priority: Low
• Resolution: Fixed
• Fix Version/s: 2.2.6, 3.0.4, 3.4
• Component/s: Legacy/Streaming and Messaging
• Severity: Low
• Assignee: Paulo Motta
• Reporter: Vassil Lunchev

Authors

Paulo Motta

Reviewers

Yuki Morishita

• Created: 25/Jan/16 15:15
• Updated: 16/Apr/19 09:30
• Resolved: 18/Feb/16 17:25

Description

Running Cassandra 3.0.1 installed from apt-get on debian.

I had a keyspace called 'tests'. I dropped it. Then I checked some nodes and one of them still had that keyspace 'tests'. On a node that still has the dropped keyspace I ran:
nodetools repair tests;

In the system logs of another node that did not have keyspace 'tests' I am seeing a null pointer exception:

ERROR [AntiEntropyStage:2] 2016-01-25 15:02:46,323 RepairMessageVerbHandler.java:161 - Got error, removing parent repair session
ERROR [AntiEntropyStage:2] 2016-01-25 15:02:46,324 CassandraDaemon.java:195 - Exception in thread Thread[AntiEntropyStage:2,5,main]
java.lang.RuntimeException: java.lang.NullPointerException
	at org.apache.cassandra.repair.RepairMessageVerbHandler.doVerb(RepairMessageVerbHandler.java:164) ~[apache-cassandra-3.0.1.jar:3.0.1]
	at org.apache.cassandra.net.MessageDeliveryTask.run(MessageDeliveryTask.java:67) ~[apache-cassandra-3.0.1.jar:3.0.1]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) ~[na:1.8.0_66-internal]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) ~[na:1.8.0_66-internal]
	at java.lang.Thread.run(Thread.java:745) ~[na:1.8.0_66-internal]
Caused by: java.lang.NullPointerException: null
	at org.apache.cassandra.repair.RepairMessageVerbHandler.doVerb(RepairMessageVerbHandler.java:69) ~[apache-cassandra-3.0.1.jar:3.0.1]
	... 4 common frames omitted

The error appears every time I run:
nodetools repair tests;

I can see it in the logs of all nodes, including the node on which I run the repair.