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From lohit <lohit.vijayar...@yahoo.com>
Subject Re: NotReplicatedYetException by 'bin/hadoop dfs' commands
Date Tue, 30 Dec 2008 21:19:16 GMT
It looks like you do not have datanodes running.
Can you check datanodes logs and see if they were started without errors.

Thanks,
Lohit



----- Original Message ----
From: sagar arlekar <sagar.arlekar@gmail.com>
To: core-user@hadoop.apache.org
Sent: Tuesday, December 30, 2008 1:00:04 PM
Subject: NotReplicatedYetException by 'bin/hadoop dfs' commands

Hello,

I am new to hadoop. I am using hadoop 0.17, I am trying to run it
Pseudo-Distributed.
I get NotReplicatedYetException while executing 'bin/hadoop dfs' commands.
The following is the partial text of the exception

08/12/31 02:38:26 INFO dfs.DFSClient:
org.apache.hadoop.ipc.RemoteException: java.io.IOException: File
/user/root/in7 could only be replicated to 0 nodes, instead of 1
        at org.apache.hadoop.dfs.FSNamesystem.getAdditionalBlock(FSNamesystem.java:1145)
        at org.apache.hadoop.dfs.NameNode.addBlock(NameNode.java:300)
        at sun.reflect.GeneratedMethodAccessor2.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$Server.call(RPC.java:446)
        at org.apache.hadoop.ipc.Server$Handler.run(Server.java:896)

        at org.apache.hadoop.ipc.Client.call(Client.java:557)
        at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:212)
        at org.apache.hadoop.dfs.$Proxy0.addBlock(Unknown Source)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:82)
        at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:59)
        at org.apache.hadoop.dfs.$Proxy0.addBlock(Unknown Source)
        at org.apache.hadoop.dfs.DFSClient$DFSOutputStream.locateFollowingBlock(DFSClient.java:2335)
        at org.apache.hadoop.dfs.DFSClient$DFSOutputStream.nextBlockOutputStream(DFSClient.java:2220)
        at org.apache.hadoop.dfs.DFSClient$DFSOutputStream.access$1700(DFSClient.java:1702)
        at org.apache.hadoop.dfs.DFSClient$DFSOutputStream$DataStreamer.run(DFSClient.java:1842)

08/12/31 02:38:26 WARN dfs.DFSClient: NotReplicatedYetException
sleeping /user/root/in7 retries left 4
08/12/31 02:38:27 INFO dfs.DFSClient:
org.apache.hadoop.ipc.RemoteException: java.io.IOException: File
/user/root/in7 could only be replicated to 0 nodes, instead of 1
        at org.apache.hadoop.dfs.FSNamesystem.getAdditionalBlock(FSNamesystem.java:1145)
        at org.apache.hadoop.dfs.NameNode.addBlock(NameNode.java:300)
        at sun.reflect.GeneratedMethodAccessor2.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$Server.call(RPC.java:446)
        at org.apache.hadoop.ipc.Server$Handler.run(Server.java:896)

        at org.apache.hadoop.ipc.Client.call(Client.java:557)
        at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:212)
        at org.apache.hadoop.dfs.$Proxy0.addBlock(Unknown Source)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:82)
        at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:59)
        at org.apache.hadoop.dfs.$Proxy0.addBlock(Unknown Source)
        at org.apache.hadoop.dfs.DFSClient$DFSOutputStream.locateFollowingBlock(DFSClient.java:2335)
        at org.apache.hadoop.dfs.DFSClient$DFSOutputStream.nextBlockOutputStream(DFSClient.java:2220)
        at org.apache.hadoop.dfs.DFSClient$DFSOutputStream.access$1700(DFSClient.java:1702)
        at org.apache.hadoop.dfs.DFSClient$DFSOutputStream$DataStreamer.run(DFSClient.java:1842)


I googled but did not find a remedy, and the mailing list archive did
not have a search.

Kindly help me fix the exception.


Regards,
Sagar


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