Thanks Rob. On Tue, Dec 30, 2014 at 1:38 PM, Robert Coli <rc...@eventbrite.com> wrote:
> On Tue, Dec 30, 2014 at 9:42 AM, Phil Burress <philtburr...@gmail.com> > wrote: > >> We are having a lot of problems with release 2.1.2. It was suggested here >> we should downgrade to 2.1.1 if possible. >> >> For the experts out there, do you foresee any issues in doing this? >> > > Not sure if advice from the person who suggested the downgrade is what > you're looking for, but... > > The classes of risk are : > > - Incompatible changes to system keyspace values (unlikely, but possible > in a minor version) > - File format changes (very unlikely in a minor version) > - Network protocol changes (very unlikely in a minor version) > - Unexpected exceptions of other classes (monitor in logs) > > Really, read the CHANGES.txt for 2.1.2 and look for the above classes of > risk. If you have any questions about specific tickets, feel free to ask > on-thread? > > It's also worth pointing out that you can just downgrade a single node and > see if it still works. If it does, and doesn't except, you're probably fine? > > =Rob > PS - Pro-forma disclaimer that downgrading is officially unsupported. >
