I'm seeing a number of NullPointerExceptions in the log of my cluster. You can
see the log line below. I'm thinking this is probably bad. Any ideas?
ERROR [CompactionExecutor:38] 2013-07-19 17:01:34,494 CassandraDaemon.java
(line 192) Exception in thread Thread[CompactionExecutor:38,1,main]
java.lang.NullPointerException
Not sure if this is related or not, but I'm also getting a bunch of
AssertionErrors as well, even after running a scrub…
ERROR [CompactionExecutor:38] 2013-07-19 17:01:06,192 CassandraDaemon.java
(line 192) Exception in thread Thread[CompactionExecutor:38,1,main]
java.lang.AssertionError: incorrect row data size 29502477 written to
/mnt/datadrive/lib/cassandra/data/fanzo/tweets_by_team/fanzo-tweets_by_team-tmp-ic-5262-Data.db;
correct is 29725806
at
org.apache.cassandra.io.sstable.SSTableWriter.append(SSTableWriter.java:162)
at
org.apache.cassandra.db.compaction.CompactionTask.runWith(CompactionTask.java:162)
at
org.apache.cassandra.io.util.DiskAwareRunnable.runMayThrow(DiskAwareRunnable.java:48)
at
org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:28)
at
org.apache.cassandra.db.compaction.CompactionTask.executeInternal(CompactionTask.java:58)
at
org.apache.cassandra.db.compaction.AbstractCompactionTask.execute(AbstractCompactionTask.java:60)
at
org.apache.cassandra.db.compaction.CompactionManager$BackgroundCompactionTask.run(CompactionManager.java:211)
at
java.util.concurrent.Executors$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:724)
