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From "Eric Leleu (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CASSANDRA-8067) NullPointerException in KeyCacheSerializer
Date Tue, 07 Oct 2014 08:03:34 GMT
Eric Leleu created CASSANDRA-8067:
-------------------------------------

             Summary: NullPointerException in KeyCacheSerializer
                 Key: CASSANDRA-8067
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-8067
             Project: Cassandra
          Issue Type: Bug
          Components: Core
            Reporter: Eric Leleu


Hi,

I have this stack trace in the logs of Cassandra server (v2.1)

{code}
ERROR [CompactionExecutor:14] 2014-10-06 23:32:02,098 CassandraDaemon.java:166 - Exception
in thread Thread[CompactionExecutor:14,1,main]
java.lang.NullPointerException: null
        at org.apache.cassandra.service.CacheService$KeyCacheSerializer.serialize(CacheService.java:475)
~[apache-cassandra-2.1.0.jar:2.1.0]
        at org.apache.cassandra.service.CacheService$KeyCacheSerializer.serialize(CacheService.java:463)
~[apache-cassandra-2.1.0.jar:2.1.0]
        at org.apache.cassandra.cache.AutoSavingCache$Writer.saveCache(AutoSavingCache.java:225)
~[apache-cassandra-2.1.0.jar:2.1.0]
        at org.apache.cassandra.db.compaction.CompactionManager$11.run(CompactionManager.java:1061)
~[apache-cassandra-2.1.0.jar:2.1.0]
        at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) ~[na:1.7.0]
        at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source) ~[na:1.7.0]
        at java.util.concurrent.FutureTask.run(Unknown Source) ~[na:1.7.0]
        at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [na:1.7.0]
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [na:1.7.0]
        at java.lang.Thread.run(Unknown Source) [na:1.7.0]
{code}

It may not be critical because this error occured in the AutoSavingCache. However the line
475 is about the CFMetaData so it may hide bigger issue...

{code}
 474             CFMetaData cfm = Schema.instance.getCFMetaData(key.desc.ksname, key.desc.cfname);
 475             cfm.comparator.rowIndexEntrySerializer().serialize(entry, out);
{code}

Regards,
Eric



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