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From Kesten Broughton <kbrough...@21ct.com>
Subject Re: /accumulo dir remains after reformatting name node and deleting datanodes
Date Sun, 26 Jan 2014 22:37:52 GMT
It¹s possible something was running.  I only did an accumulo/stop-all.sh
and sometimes i¹ve noticed i have to go to each node to stop-here.sh.

[root@txoig-hdfs02:accumulo-1.5.0]$ ls /hadoop/hdfs
drwxr-xr-x. 5 hdfs 4.0K Jan 26 16:10 namesecondary


[root@txoig-hdfs01:~]$ ls /hadoop/hdfs/
drwxr-xr-x. 5 hdfs 4.0K Jan 26 16:10 namenode


[root@txoig-hdfs03:~]$ ls /hadoop/hdfs
drwxr-xr-x. 4 root 4.0K Jan 26 16:13 namenode
# this is weird. Wasn¹t expecting a second name node.  We aren¹t doing HA.


But shutting down all accumulo and hdfs and then doing the same procedure,
i still see

[root@txoig-hdfs01:~]$ hadoop fs -ls /
Found 5 items
drwxr-xr-x   - hdfs   hdfs          0 2014-01-26 13:36 /accumulo
drwxr-xr-x   - hdfs   hdfs          0 2013-12-19 18:17 /apps
drwx------   - mapred hdfs          0 2014-01-26 14:32 /mapred
drwxrwxrwx   - hdfs   hdfs          0 2014-01-26 14:56 /tmp
drwxr-xr-x   - hdfs   hdfs          0 2013-12-30 15:11 /user



On 1/26/14, 4:16 PM, "Christopher" <ctubbsii@apache.org> wrote:

>Was any part of Hadoop or Accumulo still running when you did this?
>Are you sure you deleted the right HDFS data directory referenced in
>your Hadoop configuration?
>
>--
>Christopher L Tubbs II
>http://gravatar.com/ctubbsii
>
>
>On Sun, Jan 26, 2014 at 4:45 PM, Kesten Broughton <kbroughton@21ct.com>
>wrote:
>>>
>>>We did experiments using the root dir for both name nodes and datanodes.
>>>Now we want to wipe out the old hdfs cluster, keeping the name node at
>>>/hadoop/hdfs/namenode but moving the datanode fs to /dev/sdb etc.
>>
>> After removing /hadoop/hdfs/data on each of the datanode machines and
>>doing
>> hadoop namenode -format
>>
>> I still see /accumulo on
>> hadoop fs -ls /
>>
>> I was expecting it to be gone.
>>
>> kesten
>>


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