-Re: could only be replicated to 0 nodes, instead of 1
Suresh Srinivas 2012-09-04, 17:32
Assuming that you were seeing the problem when you captured the namenode
webUI info, it is not related to what I suspect. This might be a good
question for CDH forums given this is not an Apache release.
On Tue, Sep 4, 2012 at 10:20 AM, Keith Wiley <[EMAIL PROTECTED]> wrote:
> On Sep 4, 2012, at 10:05 , Suresh Srinivas wrote:
> > When these errors are thrown, please send the namenode web UI
> information. It has storage related information in the cluster summary.
> That will help debug.
> Sure thing. Thanks. Here's what I currently see. It looks like the
> problem isn't the datanode, but rather the namenode. Would you agree with
> that assessment?
> NameNode 'localhost:9000'
> Started: Tue Sep 04 10:06:52 PDT 2012
> Version: 0.20.2-cdh3u3, 03b655719d13929bd68bb2c2f9cee615b389cea9
> Compiled: Thu Jan 26 11:55:16 PST 2012 by root from Unknown
> Upgrades: There are no upgrades in progress.
> Browse the filesystem
> Namenode Logs
> Cluster Summary
> Safe mode is ON. Resources are low on NN. Safe mode must be turned off
> 1639 files and directories, 585 blocks = 2224 total. Heap Size is 39.55 MB
> / 888.94 MB (4%)
> Configured Capacity : 49.21 GB
> DFS Used : 9.9 MB
> Non DFS Used : 2.68 GB
> DFS Remaining : 46.53 GB
> DFS Used% : 0.02 %
> DFS Remaining% : 94.54 %
> Live Nodes : 1
> Dead Nodes : 0
> Decommissioning Nodes : 0
> Number of Under-Replicated Blocks : 5
> NameNode Storage:
> Storage Directory Type State
> /var/lib/hadoop-0.20/cache/hadoop/dfs/name IMAGE_AND_EDITS Active
> Cloudera's Distribution including Apache Hadoop, 2012.
> Keith Wiley [EMAIL PROTECTED] keithwiley.com
> "And what if we picked the wrong religion? Every week, we're just making
> madder and madder!"
> -- Homer Simpson