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Hadoop, mail # user - Bad connection to FS.
Mithila Nagendra
2009-02-04, 23:06
TCK
2009-02-04, 23:18
Amandeep Khurana
2009-02-04, 23:24
TCK
2009-02-04, 23:49
Amandeep Khurana
2009-02-05, 01:26
Rasit OZDAS
2009-02-05, 09:26
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Re: Bad connection to FS.
lohit 2009-02-05, 01:57
As noted by others NameNode is not running.
Before formatting anything (which is like deleting your data), try to see why NameNode isnt running.
search for value of HADOOP_LOG_DIR in ./conf/hadoop-env.sh if you have not set it explicitly it would default to <your hadoop installation>/logs/*namenode*.log
Lohit

----- Original Message ----
From: Amandeep Khurana <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED]
Sent: Wednesday, February 4, 2009 5:26:43 PM
Subject: Re: Bad connection to FS.

Here's what I had done..

1. Stop the whole system
2. Delete all the data in the directories where the data and the metadata is
being stored.
3. Format the namenode
4. Start the system

This solved my problem. I'm not sure if this is a good idea to do for you or
not. I was pretty much installing from scratch so didnt mind deleting the
files in those directories..

Amandeep
Amandeep Khurana
Computer Science Graduate Student
University of California, Santa Cruz
On Wed, Feb 4, 2009 at 3:49 PM, TCK <[EMAIL PROTECTED]> wrote:

>
> I believe the debug logs location is still specified in hadoop-env.sh (I
> just read the 0.19.0 doc). I think you have to shut down all nodes first
> (stop-all), then format the namenode, and then restart (start-all) and make
> sure that NameNode comes up too. We are using a very old version, 0.12.3,
> and are upgrading.
> -TCK
>
>
>
> --- On Wed, 2/4/09, Mithila Nagendra <[EMAIL PROTECTED]> wrote:
> From: Mithila Nagendra <[EMAIL PROTECTED]>
> Subject: Re: Bad connection to FS.
> To: [EMAIL PROTECTED], [EMAIL PROTECTED]
> Date: Wednesday, February 4, 2009, 6:30 PM
>
> @TCK: Which version of hadoop have you installed?
> @Amandeep: I did tried reformatting the namenode, but it hasn't helped me
> out in anyway.
> Mithila
>
>
> On Wed, Feb 4, 2009 at 4:18 PM, TCK <[EMAIL PROTECTED]> wrote:
>
>
>
> Mithila, how come there is no NameNode java process listed by your jps
> command? I would check the hadoop namenode logs to see if there was some
> startup problem (the location of those logs would be specified in
> hadoop-env.sh, at least in the version I'm using).
>
>
> -TCK
>
>
>
>
>
>
>
> --- On Wed, 2/4/09, Mithila Nagendra <[EMAIL PROTECTED]> wrote:
>
> From: Mithila Nagendra <[EMAIL PROTECTED]>
>
> Subject: Bad connection to FS.
>
> To: "[EMAIL PROTECTED]" <[EMAIL PROTECTED]>, "
> [EMAIL PROTECTED]" <
> [EMAIL PROTECTED]>
>
>
> Date: Wednesday, February 4, 2009, 6:06 PM
>
>
>
> Hey all
>
>
>
> When I try to copy a folder from the local file system in to the HDFS using
>
> the command hadoop dfs -copyFromLocal, the copy fails and it gives an error
>
> which says "Bad connection to FS". How do I get past this? The
>
> following is
>
> the output at the time of execution:
>
>
>
> hadoop@renweiyu-desktop:/usr/local/hadoop$ jps
>
> 6873 Jps
>
> 6299 JobTracker
>
> 6029 DataNode
>
> 6430 TaskTracker
>
> 6189 SecondaryNameNode
>
> hadoop@renweiyu-desktop:/usr/local/hadoop$ ls
>
> bin          docs                        lib          README.txt
>
> build.xml    hadoop-0.18.3-ant.jar       libhdfs      src
>
> c++          hadoop-0.18.3-core.jar      librecordio  webapps
>
> CHANGES.txt  hadoop-0.18.3-examples.jar  LICENSE.txt
>
> conf         hadoop-0.18.3-test.jar      logs
>
> contrib      hadoop-0.18.3-tools.jar     NOTICE.txt
>
> hadoop@renweiyu-desktop:/usr/local/hadoop$ cd ..
>
> hadoop@renweiyu-desktop:/usr/local$ ls
>
> bin  etc  games  gutenberg  hadoop  hadoop-0.18.3.tar.gz  hadoop-datastore
>
> include  lib  man  sbin  share  src
>
> hadoop@renweiyu-desktop:/usr/local$ hadoop/bin/hadoop dfs -copyFromLocal
>
> gutenberg gutenberg
>
> 09/02/04 15:58:21 INFO ipc.Client: Retrying connect to server: localhost/
>
> 127.0.0.1:54310. Already tried 0 time(s).
>
> 09/02/04 15:58:22 INFO ipc.Client: Retrying connect to server: localhost/
>
> 127.0.0.1:54310. Already tried 1 time(s).
>
> 09/02/04 15:58:23 INFO ipc.Client: Retrying connect to server: localhost/