While upgrading from 1.0.11 to 1.2.4, I saw this exception in my log.
2013-05-14 10:50:10,291 ERROR [CassandraDaemon] Exception in thread
Thread[MutationStage:17,5,main]
java.lang.RuntimeException: java.lang.NullPointerException
at
org.apache.cassandra.service.StorageProxy$HintRunnable.run(StorageProxy.java:1647)
at
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.NullPointerException
at org.apache.cassandra.utils.UUIDGen.decompose(UUIDGen.java:82)
at org.apache.cassandra.cql.jdbc.JdbcUUID.decompose(JdbcUUID.java:55)
at org.apache.cassandra.db.marshal.UUIDType.decompose(UUIDType.java:187)
at org.apache.cassandra.db.RowMutation.hintFor(RowMutation.java:103)
at
org.apache.cassandra.service.StorageProxy.writeHintForMutation(StorageProxy.java:581)
at
org.apache.cassandra.service.StorageProxy$5.runMayThrow(StorageProxy.java:555)
at
org.apache.cassandra.service.StorageProxy$HintRunnable.run(StorageProxy.java:1643)
... 6 more
Any reason?
/Roshan
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