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From mouradk <mourad...@googlemail.com>
Subject Re: Cannot restart Namenode after disk full
Date Mon, 30 Jul 2012 16:36:47 GMT
Hi Adam,

Thanks for your prompt reply. I am not sure how to attempt to Restore from SecondaryNameNode.
When I restart hadoop, the NameNode shutdowns as per the log, but secondaryNameNode is launched.
  

$jps
23675 RunJar
23225 TaskTracker
23023 SecondaryNameNode
22886 DataNode
4985 GossipRouter
30870 WOBootstrap
24684 Jps
5887 WOBootstrap
23100 JobTracker
24460 WOBootstrap
5838 WOBootstrap
26648 WOBootstrap


I have read on a few threads about repairing the edits file but I am afraid I am not too sure
how to attempt it.

Many thanks,

Mouradk
Sent with Sparrow (http://www.sparrowmailapp.com/?sig)


On Monday, 30 July 2012 at 17:27, Adam Brown wrote:

> HI Mouradk,
> 
> looks like your edit log is corrupt
> 
> can you recover from a secondary namenode?
> 
> -Adam
> 
> On Mon, Jul 30, 2012 at 9:26 AM, mouradk <mouradk78@googlemail.com (mailto:mouradk78@googlemail.com)>
wrote:
> > Dear all,
> > 
> > We are running a hadoop 0.20.2 single node with hbase 0.20.4 and cannot restart
namenode after the disk got full. I have freed more space but cannot restart Namenode and
get the following error:
> > 
> > 
> > TARTUP_MSG: build =https://svn.apache.org/repos/asf/hadoop/common/branches/branch-0.20
-r 911707; compiled by 'chrisdo' on Fri Feb 19 08:07:34 UTC 2010
> > ************************************************************/
> > 2012-07-30 16:02:23,649 INFO org.apache.hadoop.ipc.metrics.RpcMetrics: Initializing
RPC Metrics with hostName=NameNode, port=50001
> > 2012-07-30 16:02:23,656 INFO org.apache.hadoop.hdfs.server.namenode.NameNode: Namenode
up at: localhost/127.0.0.1:50001
> > 2012-07-30 16:02:23,659 INFO org.apache.hadoop.metrics.jvm.JvmMetrics: Initializing
JVM Metrics with processName=NameNode, sessionId=null
> > 2012-07-30 16:02:23,660 INFO org.apache.hadoop.hdfs.server.namenode.metrics.NameNodeMetrics:
Initializing NameNodeMeterics using context object:org.apache.hadoop.metrics.spi.NullContext
> > 2012-07-30 16:02:23,714 INFO org.apache.hadoop.hdfs.server.namenode.FSNamesystem:
fsOwner=hadoop,hadoop
> > 2012-07-30 16:02:23,714 INFO org.apache.hadoop.hdfs.server.namenode.FSNamesystem:
supergroup=supergroup
> > 2012-07-30 16:02:23,714 INFO org.apache.hadoop.hdfs.server.namenode.FSNamesystem:
isPermissionEnabled=false
> > 2012-07-30 16:02:23,721 INFO org.apache.hadoop.hdfs.server.namenode.metrics.FSNamesystemMetrics:
Initializing FSNamesystemMetrics using context object:org.apache.hadoop.metrics.spi.NullContext
> > 2012-07-30 16:02:23,723 INFO org.apache.hadoop.hdfs.server.namenode.FSNamesystem:
Registered FSNamesystemStatusMBean
> > 2012-07-30 16:02:23,756 INFO org.apache.hadoop.hdfs.server.common.Storage: Number
of files = 533
> > 2012-07-30 16:02:23,833 INFO org.apache.hadoop.hdfs.server.common.Storage: Number
of files under construction = 2
> > 2012-07-30 16:02:23,835 INFO org.apache.hadoop.hdfs.server.common.Storage: Image
file of size 55400 loaded in 0 seconds.
> > 2012-07-30 16:02:23,844 ERROR org.apache.hadoop.hdfs.server.namenode.NameNode: java.lang.NumberFormatException:
For input string: "1343506"
> > at java.lang.NumberFormatException.forInputString(NumberFormatException.java:48)
> > at java.lang.Long.parseLong(Long.java:419)
> > at java.lang.Long.parseLong(Long.java:468)
> > at org.apache.hadoop.hdfs.server.namenode.FSEditLog.readLong(FSEditLog.java:1273)
> > at org.apache.hadoop.hdfs.server.namenode.FSEditLog.loadFSEdits(FSEditLog.java:775)
> > at org.apache.hadoop.hdfs.server.namenode.FSImage.loadFSEdits(FSImage.java:992)
> > at org.apache.hadoop.hdfs.server.namenode.FSImage.loadFSImage(FSImage.java:812)
> > at org.apache.hadoop.hdfs.server.namenode.FSImage.recoverTransitionRead(FSImage.java:364)
> > at org.apache.hadoop.hdfs.server.namenode.FSDirectory.loadFSImage(FSDirectory.java:87)
> > at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.initialize(FSNamesystem.java:311)
> > at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.<init>(FSNamesystem.java:292)
> > at org.apache.hadoop.hdfs.server.namenode.NameNode.initialize(NameNode.java:201)
> > at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:279)
> > at org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:956)
> > at org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:965)
> > 
> > 2012-07-30 16:02:23,845 INFO org.apache.hadoop.hdfs.server.namenode.NameNode: SHUTDOWN_MSG:
> > 
> > 
> > Your help is much appreciated!!
> > 
> > 
> > Mouradk
> > Sent with Sparrow (http://www.sparrowmailapp.com/?sig)
> > 
> > 
> > Mouradk
> > Sent with Sparrow (http://www.sparrowmailapp.com/?sig)
> > 
> > 
> > Mouradk
> > Sent with Sparrow (http://www.sparrowmailapp.com/?sig)
> > 
> 
> 
> 
> 
> -- 
> Adam Brown
> Enablement Engineer
> Hortonworks
> 
> 
> 



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