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Posted to common-dev@hadoop.apache.org by Ahmad Shahzad <as...@gmail.com> on 2010/08/04 20:32:56 UTC
hadoop JobTRACKER error HELP!!!
Hi ALL,
I am getting this error in JobTracker's log file. But when i
format my namenode the error doesnt comes. But i can run hadoop only once.
If i run it the second time the same error comes. Any clues??
Also, i have put nothing in HDFS right now. I just start all the processes
and the error comes.
INFO org.apache.hadoop.mapred.JobTracker: problem cleaning system directory:
hdfs://localhost:54310/usr/local/hadoop-datastore/hadoop-hadoop/m$
org.apache.hadoop.ipc.RemoteException:
org.apache.hadoop.hdfs.server.namenode.SafeModeException: Cannot delete
/usr/local/hadoop-datastore/hadoop-hadoop/mapred/system$
The ratio of reported blocks 0.0000 has not reached the threshold 0.9990.
Safe mode will be turned off automatically.
at
org.apache.hadoop.hdfs.server.namenode.FSNamesystem.deleteInternal(FSNamesystem.java:1700)
at
org.apache.hadoop.hdfs.server.namenode.FSNamesystem.delete(FSNamesystem.java:1680)
at
org.apache.hadoop.hdfs.server.namenode.NameNode.delete(NameNode.java:517)
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.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:221)
at $Proxy4.delete(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
Ahmad
Re: hadoop JobTRACKER error HELP!!!
Posted by Rajesh Balamohan <ra...@gmail.com>.
The following command will switch off safemode.
./hadoop dfsadmin -safemode leave
On Thu, Aug 5, 2010 at 12:02 AM, Ahmad Shahzad <as...@gmail.com> wrote:
> Hi ALL,
> I am getting this error in JobTracker's log file. But when i
> format my namenode the error doesnt comes. But i can run hadoop only once.
> If i run it the second time the same error comes. Any clues??
> Also, i have put nothing in HDFS right now. I just start all the processes
> and the error comes.
>
> INFO org.apache.hadoop.mapred.JobTracker: problem cleaning system
> directory:
> hdfs://localhost:54310/usr/local/hadoop-datastore/hadoop-hadoop/m$
> org.apache.hadoop.ipc.RemoteException:
> org.apache.hadoop.hdfs.server.namenode.SafeModeException: Cannot delete
> /usr/local/hadoop-datastore/hadoop-hadoop/mapred/system$
> The ratio of reported blocks 0.0000 has not reached the threshold 0.9990.
> Safe mode will be turned off automatically.
> at
>
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.deleteInternal(FSNamesystem.java:1700)
> at
>
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.delete(FSNamesystem.java:1680)
> at
> org.apache.hadoop.hdfs.server.namenode.NameNode.delete(NameNode.java:517)
> 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.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:221)
> at $Proxy4.delete(Unknown Source)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>
>
> Ahmad
>
--
~Rajesh.B