Okay Thanks. I’ll do some tests
> On Mar 14, 2018, at 2:29 PM, Jeff Jirsa <jji...@gmail.com> wrote:
>
> I'll confirm that it's worked for me in the past, but you should always test
> changes like this in your lab/qa environment and not rely on some random
> person on the internet.
>
>
> On Wed, Mar 14, 2018 at 7:13 AM, Cyril Scetbon <cyril.scet...@free.fr
> <mailto:cyril.scet...@free.fr>> wrote:
> And you confirm that if we use snitches like EC2Snitch or GPFS we’ll only
> have to update the seed list in Cassandra.yaml if this node is a seed ?
>
> —
> Cyril Scetbon
>
>> On Mar 13, 2018, at 10:08 PM, Jeff Jirsa <jji...@gmail.com
>> <mailto:jji...@gmail.com>> wrote:
>>
>> If you're just trying to change an IP, you can just stop the node, change
>> the IP and restart the node and it'll be fine (change it everywhere).
>>
>> Replacing a node is different: replacing is when a node dies, and you're
>> replacing it with a new node that doesnt have any data. The
>> -Dcassandra.replace_address option tells the starting instance it needs to
>> look for a dead host and get all of the data that host should have had.
>>
>>
>>
>> On Tue, Mar 13, 2018 at 6:57 PM, Cyril Scetbon <cyril.scet...@free.fr
>> <mailto:cyril.scet...@free.fr>> wrote:
>> Hey,
>>
>> I always thought that changing the IP address of a node requires to use the
>> same procedure as for a died node, which part of it consists in starting
>> Cassandra the -Dcassandra.replace_address option as indicated at
>> https://docs.datastax.com/en/cassandra/3.0/cassandra/operations/opsReplaceNode.html
>>
>> <https://docs.datastax.com/en/cassandra/3.0/cassandra/operations/opsReplaceNode.html>
>>
>>
>> However, it’s said at
>> https://docs.datastax.com/en/dse/5.1/dse-admin/datastax_enterprise/operations/opsChangeIp.html
>>
>> <https://docs.datastax.com/en/dse/5.1/dse-admin/datastax_enterprise/operations/opsChangeIp.html>
>> that we can simply start the new node after having done some changes in
>> configuration files that could be impacted (seed list in cassandra.yaml,
>> cassandra-topology.properties). Is it a feature of the DSE ? Is it something
>> that works with the community version ? How does it work exactly ? Does the
>> replacement happen because it has the same data as the replaced node and
>> something like an id is found in the local files ? The token list ?
>>
>> Thank you
>> —
>> Cyril Scetbon
>>
>>
>
>
