Yup, this looks like pretty good coverage of the topic.
I *think* I like the idea of Cassandra pushing a CF change to its peers, as
opposed to managing it by a separate admin task, simply because I wouldn't want
a change managed by an application admin to be missed because of bad
communication, forgetfulness, etc., with the Ops team.
So, considering that I currently have to take down a node to make a CF change,
I'm wondering how to perform automatic failover from my application? Is there
a mechanism by which I can request from Cassandra all the destination IP:ports
for the nodes in a cluster, so I can adapt dynamically? For example, if I ramp
up/down Cassandra instances based on server load, I would like my application
to automatically know what servers are available, to execute automatic
reconnection when the node I'm connected to goes down.
Thanks,
Robin.
-----Original Message-----
From: Jonathan Ellis [mailto:[email protected]]
Sent: December 3, 2009 4:32 PM
To: [email protected]
Subject: Re: data modeling question
On Thu, Dec 3, 2009 at 3:22 PM, Coe, Robin <[email protected]> wrote:
> I seem to recall some talk about dynamically setting a key space or maybe it
> was dynamically loading column families? Is this already a feature request,
> to your knowledge, or should I open a Jira issue?
https://issues.apache.org/jira/browse/CASSANDRA-44 maybe?
> If yes to opening a Jira issue, should it be the feature of dynamically
> reloading the config or dynamically creating CFs?
Well, it's sort of the same thing, in that you need the latter and the
former is the simplest way to actually interface with it.
-Jonathan
