Thank you! On Jun 13, 2016 3:23 PM, "Chris Nauroth" <cnaur...@hortonworks.com> wrote:
> Hello Ram, > > This indicates that a client connected to the DataNode's data transfer > port but then immediately disconnected before requesting an operation. > Sometimes monitoring tools will do this as a liveness check to make sure > the DataNode process is running and the port is reachable. The log message > is harmless. Apache Hadoop 2.8.0 will ship fix HDFS-9572 to prevent this > message from going into the logs. > > <https://issues.apache.org/jira/browse/HDFS-9572> > <https://issues.apache.org/jira/browse/HDFS-9572> > https://issues.apache.org/jira/browse/HDFS-9572 > > --Chris Nauroth > > From: rammohan ganapavarapu <rammohanga...@gmail.com> > Date: Monday, June 13, 2016 at 2:02 PM > To: "user@hadoop.apache.org" <user@hadoop.apache.org> > Subject: Datanode: DataXceiver error processing unknown operation > > Hi, > > I am getting this error in datanode, not sure what it means and how to fix > it, any one have any suggestions? > > > 2016-06-13 20:59:40,148 ERROR > org.apache.hadoop.hdfs.server.datanode.DataNode: > localhost:50010:DataXceiver error processing unknown operation src: / > 1.2.3.4:57308 dst: /1.2.3.4:50010 > java.io.EOFException > > Thanks, > Ram >
