hadoop-common-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Pierre ANCELOT <pierre...@gmail.com>
Subject Re: could only be replicated to 0 nodes, instead of 1
Date Thu, 01 Jul 2010 08:52:48 GMT
Hi,
Well, actually, I'm configured to have 3 replicas, the default.
So this, is a first issue.
And yes, the datanode is up and reponding, this problem only happens
from time to time.

Thanks :)

On Thu, Jul 1, 2010 at 10:49 AM, Harsh J <qwertymaniac@gmail.com> wrote:
> Did you check if your Datanode(s) is/are up? The Namenode's web
> interface reports statistics about live/dead datanodes.
>
> NN is trying to replicate your data to N (in your case, 1) datanodes
> but it can find none.
>
> On Thu, Jul 1, 2010 at 1:48 PM, Pierre ANCELOT <pierreact@gmail.com> wrote:
>> Hello everyone :)
>> Any idea how to troubleshoot this please?
>> I don't get where this comes from.
>>
>>
>> 2010-07-01 08:29:02,721 WARN org.apache.hadoop.hdfs.DFSClient:
>> DataStreamer Exception: org.apache.hadoop.ipc.RemoteException:
>> java.io.IOException: File
>> /acd/Dispatch/data/user100/historyreport/020920360E55A807CECDFC34621E90C5/last
>> could only be replicated to 0 nodes, instead of 1
>>
>>
>>        at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getAdditionalBlock(FSNamesystem.java:1271)
>>        at org.apache.hadoop.hdfs.server.namenode.NameNode.addBlock(NameNode.java:422)
>>        at sun.reflect.GeneratedMethodAccessor68.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$Server.call(RPC.java:508)
>>        at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:959)
>>
>>
>>        at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:955)
>>        at java.security.AccessController.doPrivileged(Native Method)
>>        at javax.security.auth.Subject.doAs(Subject.java:396)
>>        at org.apache.hadoop.ipc.Server$Handler.run(Server.java:953)
>>
>>
>>
>>        at org.apache.hadoop.ipc.Client.call(Client.java:740)
>>        at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:220)
>>        at $Proxy1.addBlock(Unknown Source)
>>        at sun.reflect.GeneratedMethodAccessor5.invoke(Unknown Source)
>>
>>
>>        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 $Proxy1.addBlock(Unknown Source)
>>        at org.apache.hadoop.hdfs.DFSClient$DFSOutputStream.locateFollowingBlock(DFSClient.java:2937)
>>
>>
>>        at org.apache.hadoop.hdfs.DFSClient$DFSOutputStream.nextBlockOutputStream(DFSClient.java:2819)
>>        at org.apache.hadoop.hdfs.DFSClient$DFSOutputStream.access$2000(DFSClient.java:2102)
>>        at org.apache.hadoop.hdfs.DFSClient$DFSOutputStream$DataStreamer.run(DFSClient.java:2288)
>>
>>
>> Thank you.
>>
>> --
>> http://www.neko-consulting.com
>> Ego sum quis ego servo
>> "Je suis ce que je protège"
>> "I am what I protect"
>>
>
>
>
> --
> Harsh J
> www.harshj.com
>



-- 
http://www.neko-consulting.com
Ego sum quis ego servo
"Je suis ce que je protège"
"I am what I protect"

Mime
View raw message