Hi Branton, two cents from me - I didnt look through the script, but for the rsyncs I do pretty much the same when moving them. Since they are immutable I do a first sync while everything is up and running to the new location which runs really long. Meanwhile new ones are created and I sync them again online, much less files to copy now. After that I shutdown the node and my last rsync now has to copy only a few files which is quite fast and so the downtime for that node is within minutes.
Jan Von meinem iPhone gesendet > Am 18.02.2016 um 22:12 schrieb Branton Davis <branton.da...@spanning.com>: > > Alain, thanks for sharing! I'm confused why you do so many repetitive > rsyncs. Just being cautious or is there another reason? Also, why do you > have --delete-before when you're copying data to a temp (assumed empty) > directory? > >> On Thu, Feb 18, 2016 at 4:12 AM, Alain RODRIGUEZ <arodr...@gmail.com> wrote: >> I did the process a few weeks ago and ended up writing a runbook and a >> script. I have anonymised and share it fwiw. >> >> https://github.com/arodrime/cassandra-tools/tree/master/remove_disk >> >> It is basic bash. I tried to have the shortest down time possible, making >> this a bit more complex, but it allows you to do a lot in parallel and just >> do a fast operation sequentially, reducing overall operation time. >> >> This worked fine for me, yet I might have make some errors while making it >> configurable though variables. Be sure to be around if you decide to run >> this. Also I automated this more by using knife (Chef), I hate to repeat >> ops, this is something you might want to consider. >> >> Hope this is useful, >> >> C*heers, >> ----------------- >> Alain Rodriguez >> France >> >> The Last Pickle >> http://www.thelastpickle.com >> >> 2016-02-18 8:28 GMT+01:00 Anishek Agarwal <anis...@gmail.com>: >>> Hey Branton, >>> >>> Please do let us know if you face any problems doing this. >>> >>> Thanks >>> anishek >>> >>>> On Thu, Feb 18, 2016 at 3:33 AM, Branton Davis >>>> <branton.da...@spanning.com> wrote: >>>> We're about to do the same thing. It shouldn't be necessary to shut down >>>> the entire cluster, right? >>>> >>>>> On Wed, Feb 17, 2016 at 12:45 PM, Robert Coli <rc...@eventbrite.com> >>>>> wrote: >>>>> >>>>> >>>>>> On Tue, Feb 16, 2016 at 11:29 PM, Anishek Agarwal <anis...@gmail.com> >>>>>> wrote: >>>>>> To accomplish this can I just copy the data from disk1 to disk2 with in >>>>>> the relevant cassandra home location folders, change the cassanda.yaml >>>>>> configuration and restart the node. before starting i will shutdown the >>>>>> cluster. >>>>> >>>>> Yes. >>>>> >>>>> =Rob >
