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Flume >> mail # user >> java.io.IOException: Bad response ERROR for block ... from datanode


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java.io.IOException: Bad response ERROR for block ... from datanode
Hi,

we are using flume to write data to hdfs.
Our hdfs sinks recently started to report these errors.

07 Aug 2013 08:41:42,776 WARN  [ResponseProcessor for block BP-1897030109-WAS_IP_1-1343818418899:blk_-6113435038800423576_51499410] (org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer$ResponseProcessor.run:747)  - DFSOutputStream ResponseProcessor exception  for block BP-1897030109-WAS_IP_1-1343818418899:blk_-6113435038800423576_51499410
java.io.IOException: Bad response ERROR for block BP-1897030109-WAS_IP_1-1343818418899:blk_-6113435038800423576_51499410 from datanode WAS_IP_2:50010

07 Aug 2013 08:41:42,776 WARN  [DataStreamer for file /tmp/syslog/px401/2013-07.tmp/29.tmp/FlumeData.1375857577304.tmp block BP-1897030109-WAS_IP_1-1343818418899:blk_-6113435038800423576_51499410] (org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.setupPipelineForAppendOrRecovery:964)  - Error Recovery for block BP-1897030109-WAS_IP_1-1343818418899:blk_-6113435038800423576_51499410 in pipeline 10.32.22.22:50010, WAS_IP_3:50010, WAS_IP_2:50010: bad datanode WAS_IP_2:50010

The errors are not referencing a single datanode, we see errors that reference all datanodes in the hadoop cluster.

Has anyone seen these errors in the past? What could be causing this?

Happy to provide extra details about the setup or config files if needed.
Please note that the various IPs were sanitized into WAS_IP_1, etc.

Regards,
 Miguel
+
Jeff Lord 2013-08-07, 17:31
+
Miguel Coelho dos Santos 2013-08-07, 18:11
+
Jeff Lord 2013-08-07, 18:25
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