On Mon, Mar 2, 2015 at 6:43 AM, <sean_r_dur...@homedepot.com> wrote: > Have any of you run a single Cassandra cluster on a mix of OS (Red Hat 5 > and 6, for example), but with the same JVM? Any issues or concerns? If > there are problems, how do you handle OS upgrades? >
If you are running the same version of Cassandra in both cases, you are probably fine. As you point out, one must inevitably upgrade one's OS; I recently went from ubuntu 1004 to 1204 (with associated (1.6/1.7) JVMs) without any problems. But you should of course do any such activity in QA and staging and let it burn in for a while before doing so in prod. =Rob