Hi, Thanks for the interest. But, yes. the datanode is alive and healthy. Dont see any failures or errors prior to this in any of the logs :(
-Sudhan S On Tue, Jul 5, 2011 at 6:15 PM, real great.. <[email protected]>wrote: > Sir, > Is the datanode shown as live in the web interface? > Me too an amateur. Just asking out of curiosity. > > > On Tue, Jul 5, 2011 at 6:13 PM, Sudharsan Sampath <[email protected]>wrote: > >> Hi, >> >> In one of my jobs I am getting the following error. >> >> java.io.IOException: File X could only be replicated to 0 nodes, instead >> of 1 >> at >> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getAdditionalBlock(FSNamesystem.java:1282) >> at >> org.apache.hadoop.hdfs.server.namenode.NameNode.addBlock(NameNode.java:469) >> at sun.reflect.GeneratedMethodAccessor7.invoke(Unknown Source) >> at >> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) >> at java.lang.reflect.Method.invoke(Method.java:597) >> at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:512) >> at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:968) >> at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:964) >> at java.security.AccessController.doPrivileged(Native Method) >> at javax.security.auth.Subject.doAs(Subject.java:396) >> at org.apache.hadoop.ipc.Server$Handler.run(Server.java:962) >> >> and the job fails. I am running a single server that runs all the hadoop >> daemons. So only one datanode in my scenario. >> >> The datanode was up all the time. >> There is enough space on the disk. >> Even on debug level, I do not see any of the following logs >> >> >> Node X " is not chosen because the node is (being) decommissioned >> because the node does not have enough space >> because the node is too busy >> because the rack has too many chosen nodes >> >> Do anyone know of anyother scenario in which occur ? >> >> Thanks >> Sudharsan S >> > > > > -- > Regards, > R.V. >
