[CASSANDRA-6211] NPE in system.log

• Type: Bug
• Status: Resolved
• Priority: Normal
• Resolution: Fixed
• Fix Version/s: 2.0.2
• Labels: npe nullpointerexception

Environment

java version "1.7.0_25"
Java(TM) SE Runtime Environment (build 1.7.0_25-b15)
Java HotSpot(TM) 64-Bit Server VM (build 23.25-b01, mixed mode)

Linux hostname 2.6.32-279.el6.x86_64 #1 SMP Thu Jun 21 15:00:18 EDT 2012 x86_64 x86_64 x86_64 GNU/Linux

• Severity: Normal
• Assignee: Sylvain Lebresne
• Reporter: Mikhail Mazursky

Authors

Sylvain Lebresne

Reviewers

Jonathan Ellis

• Created: 17/Oct/13 08:06
• Updated: 16/Apr/19 09:32
• Resolved: 23/Oct/13 12:30

Description

I wrote a stresstest to test C* and my code that uses CAS heavily. I see strange exception messages in logs:

ERROR [MutationStage:320] 2013-10-17 13:59:10,710 CassandraDaemon.java (line 185) Exception in thread Thread[MutationStage:320,5,main]
java.lang.NullPointerException
ERROR [MutationStage:328] 2013-10-17 13:59:10,718 CassandraDaemon.java (line 185) Exception in thread Thread[MutationStage:328,5,main]
java.lang.NullPointerException
ERROR [MutationStage:327] 2013-10-17 13:59:10,732 CassandraDaemon.java (line 185) Exception in thread Thread[MutationStage:327,5,main]
java.lang.NullPointerException
ERROR [MutationStage:325] 2013-10-17 13:59:10,750 CassandraDaemon.java (line 185) Exception in thread Thread[MutationStage:325,5,main]
java.lang.NullPointerException
ERROR [MutationStage:326] 2013-10-17 13:59:10,762 CassandraDaemon.java (line 185) Exception in thread Thread[MutationStage:326,5,main]
java.lang.NullPointerException
ERROR [MutationStage:330] 2013-10-17 13:59:10,768 CassandraDaemon.java (line 185) Exception in thread Thread[MutationStage:330,5,main]
java.lang.NullPointerException
ERROR [MutationStage:331] 2013-10-17 13:59:10,775 CassandraDaemon.java (line 185) Exception in thread Thread[MutationStage:331,5,main]
java.lang.NullPointerException
ERROR [MutationStage:334] 2013-10-17 13:59:10,789 CassandraDaemon.java (line 185) Exception in thread Thread[MutationStage:334,5,main]
java.lang.NullPointerException
ERROR [MutationStage:329] 2013-10-17 13:59:10,803 CassandraDaemon.java (line 185) Exception in thread Thread[MutationStage:329,5,main]
java.lang.NullPointerException
ERROR [MutationStage:335] 2013-10-17 13:59:10,812 CassandraDaemon.java (line 185) Exception in thread Thread[MutationStage:335,5,main]
java.lang.NullPointerException
ERROR [MutationStage:333] 2013-10-17 13:59:10,826 CassandraDaemon.java (line 185) Exception in thread Thread[MutationStage:333,5,main]
java.lang.NullPointerException
ERROR [MutationStage:332] 2013-10-17 13:59:10,834 CassandraDaemon.java (line 185) Exception in thread Thread[MutationStage:332,5,main]
java.lang.NullPointerException
ERROR [MutationStage:337] 2013-10-17 13:59:10,842 CassandraDaemon.java (line 185) Exception in thread Thread[MutationStage:337,5,main]
java.lang.NullPointerException
ERROR [MutationStage:336] 2013-10-17 13:59:10,859 CassandraDaemon.java (line 185) Exception in thread Thread[MutationStage:336,5,main]
java.lang.NullPointerException
ERROR [MutationStage:338] 2013-10-17 13:59:10,870 CassandraDaemon.java (line 185) Exception in thread Thread[MutationStage:338,5,main]
java.lang.NullPointerException
ERROR [MutationStage:339] 2013-10-17 13:59:10,884 CassandraDaemon.java (line 185) Exception in thread Thread[MutationStage:339,5,main]
java.lang.NullPointerException
ERROR [MutationStage:341] 2013-10-17 13:59:10,894 CassandraDaemon.java (line 185) Exception in thread Thread[MutationStage:341,5,main]
java.lang.NullPointerException
ERROR [MutationStage:340] 2013-10-17 13:59:10,910 CassandraDaemon.java (line 185) Exception in thread Thread[MutationStage:340,5,main]
java.lang.NullPointerException
ERROR [MutationStage:344] 2013-10-17 13:59:10,920 CassandraDaemon.java (line 185) Exception in thread Thread[MutationStage:344,5,main]
java.lang.NullPointerException