Sorry for that guys.
The intention was to know the steps/cautions to be taken if we want to run
the application designed for Datastax Cassandra to run on Apache's
cassandra.
Thanks for routing me in the correct direction.
Regards,
Adarsh Kumar
On Tue, Feb 4, 2020 at 7:19 PM Amanda Moran
wrote:
In AWS we are doing os upgrades by standing up an equivalent set of nodes,
and then in a rolling fashion we move the EBS mounts, selectively sync
necessary cassandra settings, and then start up the new node.
The downtime is fairly minimal since the ebs detach/attach is pretty quick,
you don't need
Your case seems to argue for completely eliminating vnodes. Which the Priam
people have been preaching for a long time.
There is not, certainly to a cassandra user-level person, good
documentation on the pros and cons of vnodes vs single tokens, and as we
see here the impacts of various vnode coun
JustFYI if being able to operationally do things many nodes at a time, you
should look at setting up racks. With num racks = RF you can take down all
nodes in a given rack at once without affecting LOCAL_QUORUM. Your single
token example has the same functionality in this respect as a vnodes c
The original question was OS (and / or JDK) upgrades, and for those "do it
in QA first", bounce non-replicas and let them come up before proceeding.
If you're doing Cassandra itself, it's a REALLY REALLY REALLY good idea to
try the upgrade on a backup of your production cluster first. While it's
u
Another thing I'll add, since I don't think any of the other responders brought
it up.
This all assumes that you already believe that the update is safe. If you have
any kind of test cluster, I'd evaluate the change there first.
While I haven't hit it with C* specifically, I have seen databa
Erik is right ... the folks at DataStax would be happy to help you and probably
don’t feel comfortable posting here :)
With that said, I used to work there but I don’t anymore so I feel comfortable
sending a bit of information your way.
Here is a very high level overview slide deck of what Da
