You are viewing a plain text version of this content. The canonical link for it is here.
Posted to common-user@hadoop.apache.org by "M.Shiva" <si...@gmail.com> on 2007/12/20 08:25:28 UTC
Error on slave node log
/************************************************************
STARTUP_MSG: Starting DataNode
STARTUP_MSG: host = slave/172.16.0.58
STARTUP_MSG: args = []
************************************************************/
2007-12-20 12:38:35,507 INFO org.apache.hadoop.metrics.jvm.JvmMetrics:
Initializing JVM Metrics with processName=DataNode, sessionId=null
2007-12-20 12:38:35,926 ERROR org.apache.hadoop.dfs.DataNode:
java.io.IOException: Incompatible namespaceIDs in
/home/hdusr/hadoop-hdusr/dfs/data: namenode namespaceID = 15620830; datanode
namespaceID = 307869798
at org.apache.hadoop.dfs.DataStorage.doTransition(DataStorage.java:294)
at
org.apache.hadoop.dfs.DataStorage.recoverTransitionRead(DataStorage.java:138)
at org.apache.hadoop.dfs.DataNode.startDataNode(DataNode.java:243)
at org.apache.hadoop.dfs.DataNode.<init>(DataNode.java:206)
at org.apache.hadoop.dfs.DataNode.makeInstance(DataNode.java:1575)
at org.apache.hadoop.dfs.DataNode.run(DataNode.java:1519)
at org.apache.hadoop.dfs.DataNode.createDataNode(DataNode.java:1540)
at org.apache.hadoop.dfs.DataNode.main(DataNode.java:1711)
2007-12-20 12:38:35,928 INFO org.apache.hadoop.dfs.DataNode: SHUTDOWN_MSG:
/************************************************************
SHUTDOWN_MSG: Shutting down DataNode at slave/172.16.0.58
************************************************************/
IN SLAVE
we get the error mentioned above in the slave node of multi-noded cluster
with 2 machines. How to resolve this issue.
Kindly help out us
-Shiva
--
View this message in context: http://www.nabble.com/Error-on-slave-node-log-tp14431892p14431892.html
Sent from the Hadoop Users mailing list archive at Nabble.com.
Re: Error on slave node log
Posted by Ted Dunning <td...@veoh.com>.
What happened here is that you formatted the name node but have data left
over from the previous incarnation of the namenode. The namenode can't deal
with that situation.
On 12/19/07 11:25 PM, "M.Shiva" <si...@gmail.com> wrote:
>
> /************************************************************
> STARTUP_MSG: Starting DataNode
> STARTUP_MSG: host = slave/172.16.0.58
> STARTUP_MSG: args = []
> ************************************************************/
> 2007-12-20 12:38:35,507 INFO org.apache.hadoop.metrics.jvm.JvmMetrics:
> Initializing JVM Metrics with processName=DataNode, sessionId=null
> 2007-12-20 12:38:35,926 ERROR org.apache.hadoop.dfs.DataNode:
> java.io.IOException: Incompatible namespaceIDs in
> /home/hdusr/hadoop-hdusr/dfs/data: namenode namespaceID = 15620830; datanode
> namespaceID = 307869798
> at org.apache.hadoop.dfs.DataStorage.doTransition(DataStorage.java:294)
> at
> org.apache.hadoop.dfs.DataStorage.recoverTransitionRead(DataStorage.java:138)
> at org.apache.hadoop.dfs.DataNode.startDataNode(DataNode.java:243)
> at org.apache.hadoop.dfs.DataNode.<init>(DataNode.java:206)
> at org.apache.hadoop.dfs.DataNode.makeInstance(DataNode.java:1575)
> at org.apache.hadoop.dfs.DataNode.run(DataNode.java:1519)
> at org.apache.hadoop.dfs.DataNode.createDataNode(DataNode.java:1540)
> at org.apache.hadoop.dfs.DataNode.main(DataNode.java:1711)
>
> 2007-12-20 12:38:35,928 INFO org.apache.hadoop.dfs.DataNode: SHUTDOWN_MSG:
> /************************************************************
> SHUTDOWN_MSG: Shutting down DataNode at slave/172.16.0.58
> ************************************************************/
> IN SLAVE
>
>
>
> we get the error mentioned above in the slave node of multi-noded cluster
> with 2 machines. How to resolve this issue.
>
> Kindly help out us
>
> -Shiva