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From Rob Stewart <robstewar...@googlemail.com>
Subject Re: Unable to exit safe mode
Date Thu, 14 Jan 2010 14:36:48 GMT
Fantastic,

I had a look at the hdfs-site.xml and realised the port was 54310.

I was able to turn OFF the safe mode, and have just deleted the file.

Thank you very much indeed Wang.

Rob.

2010/1/14 Wang Xu <gnawux@gmail.com>

> Hi Rob,
>
> How about the "fs.default.name" in your configuration files, and can
> you find NameNode process with jps?
>
> On Thu, Jan 14, 2010 at 10:16 PM, Rob Stewart
> <robstewart57@googlemail.com> wrote:
> > Hi Wang,
> >
> >> hadoop dfsadmin -report
> >
> > returns nothing at all.
> >
> > I have tried:
> >> hadoop dfsadmin -fs hdfs://hadoopmaster/ -safemode leave
> >
> > 10/01/14 14:11:24 INFO ipc.Client: Retrying connect to server:
> hadoopmaster/
> > 137.195.143.132:8020. Already tried 0 time(s).
> > 10/01/14 14:11:25 INFO ipc.Client: Retrying connect to server:
> hadoopmaster/
> > 137.195.143.132:8020. Already tried 1 time(s).
> > etc......
> >
> > ??
> >
> > thanks..
> >
> >
> >
> > 2010/1/14 Wang Xu <gnawux@gmail.com>
> >
> >> Hi Rob,
> >>
> >> What do you get if you use
> >>   hadoop dfsadmin  -report
> >> ?
> >>
> >> And you can specify the fs in command line when you call dfsadmin.
> >>
> >> On Thu, Jan 14, 2010 at 9:41 PM, Rob Stewart
> >> <robstewart57@googlemail.com> wrote:
> >> > Hi,
> >> >
> >> > I'm having a slight issue with my Hadoop cluster. There are 32 nodes.
> I
> >> > have:
> >> > /usr/lib/hadoop/bin/stop-mapred.sh
> >> > /usr/lib/hadoop/bin/stop-dfs.sh
> >> > /usr/lib/hadoop/bin/start-dfs.sh
> >> > /usr/lib/hadoop/bin/start-mapred.sh
> >> >
> >> > All worked perfectly, no errors.
> >> >
> >> > I try and remove a file: hadoop dfs -rmr wordCountOutput.jaql
> >> >
> >> > This returns: Cannot delete [the file]. Name node is in safe mode.
> >> >
> >> > I tried to exit safemode manually. I get:
> >> >> hadoop dfsadmin -safemode leave
> >> > FileSystem is file:///
> >> >
> >> >  The code generating this is:
> >> >
> >> >
> >> >  public void setSafeMode(String[] argv, int idx) throws IOException {
> >> >     final String safeModeUsage = "Usage: java DFSAdmin -safemode "
> >> >                                  + "[enter | leave | get]";
> >> >    if (!(fs instanceof DistributedFileSystem)) {
> >> >      System.out.println("FileSystem is " + fs.getName());
> >> >      return;
> >> >    }
> >> >
> >> >
> >> > What seems to be the issue? the HDFS is running, and I can browse the
> >> > filesystem, both via the command line and the Hadoop web interface.
> >> >
> >> >
> >> > Thanks...
> >> >
> >>
> >>
> >>
> >> --
> >> Wang Xu
> >> Stephen Leacock  - "I detest life-insurance agents: they always argue
> >> that I shall some day die, which is not so." -
> >> http://www.brainyquote.com/quotes/authors/s/stephen_leacock.html
> >>
> >
>
>
>
> --
> Wang Xu
> Mike Ditka  - "If God had wanted man to play soccer, he wouldn't have
> given us arms." -
> http://www.brainyquote.com/quotes/authors/m/mike_ditka.html
>

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