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Chukwa >> mail # user >> Chukwa collector confronted with a NPE


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Chukwa collector confronted with a NPE
Exception in thread "Thread-332" java.lang.NullPointerException
        at
org.apache.hadoop.chukwa.datacollection.writer.SocketTeeWriter$Tee.setup(SocketTeeWriter.java:178)
        at
org.apache.hadoop.chukwa.datacollection.writer.SocketTeeWriter$Tee.run(SocketTeeWriter.java:136)
        at java.lang.Thread.run(Thread.java:662)
2011-11-16 02:44:07,147 INFO Thread-6 SocketTeeWriter - got connection from
/10.32.149.15

And the 10.32.149.15 is our hadoop cluster.

This exception arises very frequently , every 5 mins.

But the collector seemed doesn't been influenced .

Why this exception arises? Is there something wrong with the hadoop?

--
Best regards,

Ivy Tang
NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB