Home | About | Sematext search-lucene.com search-hadoop.com
NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB
 Search Hadoop and all its subprojects:

Switch to Threaded View
MapReduce >> mail # user >> Can I switch the IP/host of NN without losing the filesystem?


Copy link to this message
-
Re: Can I switch the IP/host of NN without losing the filesystem?
Thank everybody for the responses.

James

On Mon, Jan 7, 2013 at 12:49 PM, Robert Molina <[EMAIL PROTECTED]>wrote:

> Hi James,
> This should be fine, but just wanted to add that you will need to also
> make the change on your other nodes within the cluster, so they know how to
> contact the filesystem.
>
> Regards,
> Robert
>
>
> On Sun, Jan 6, 2013 at 12:18 AM, Jagat Singh <[EMAIL PROTECTED]> wrote:
>
>> Yes your data is safe.
>>
>>
>>
>>
>> On Sun, Jan 6, 2013 at 6:41 PM, Jianhui Zhang <[EMAIL PROTECTED]>wrote:
>>
>>> Hadoop version: hadoop-0.20.205.0
>>>
>>> My NN machine has 2 IP addresses and 2 hostnames assigned to them
>>> respectively. I have configured "fs.default.name" using one of the
>>> hostnames and used the cluster for a while.
>>>
>>> Now, I may have to move the "fs.default.name" to the other IP/hostname
>>> of the same machine. If no other configurations change (such as the
>>> directories), can I simply change "fs.default.name" to the new
>>> hostname, restart the NN and expect the same filesystem is intact?
>>>
>>> Thanks,
>>> James
>>>
>>
>>
>
NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB