On Mon, Sep 2, 2013 at 4:21 PM, Renat Gilfanov <gren...@mail.ru> wrote:
> - Group 3 of storages into raid0 array, move data directory to the raid0, > and commit log - to the 4th left storage. > - As far as I understand, separation of commit log and data directory > should make performance better - but what about separation the OS from > those two - is it worth doing? > Nope. Best practice for amazon is ephemeral disks, and RAID0 for data + commit log. > - What are the steps to perform such migration? Will it be possible to > perform it without downtime, restarting node by node with new configuration > applied? > I'm especially worried about IP changes, when we'll uprade the instance > type. What's the recomended way to handle those IP changes? > Just set auto_bootstrap:false in cassandra.yaml to change the IP address of a node to which you have copied all the data its token had before its IP address changed and therefore does not need to be bootstrapped. =Rob
