Hello Debraj, Vendor specific questions should be addressed via their mailing lists or community sites. For CDH specific questions you should visit: http://community.cloudera.com
Thanks, Esteban. -- Cloudera, Inc. On Fri, Dec 8, 2017 at 9:00 AM, Debraj Manna <[email protected]> wrote: > Hi > > This is my first post in this mailing list. I am not sure if this is the > right place to ask this question > > I don't have any enterprise license. > > I am having a cluster like below > > > 1. 3 Hbase Master (1 Active & 2 standby) > 2. 4 Region Servers > 3. 4 Data Nodes > 4. 1 Primary & 1 Secondary Name Node > 5. 3 Journal Node > 6. 4 Nodemanager > 7. 3 Resource Manager (1 Active & 2 standby) > > The underlying versions of hadoop & hbase components have not changed in > 5.7 & 5.13. So can I just upgrade the services in any random order? For > example let's say I have upgraded the Secondary Name Node and some data > node to the latest 5.13. Will the updated node will be able to talk with > the old 5.7 ? Is the latest 5.13 fully backward compatible with 5.7? > Cluster downtime is not an issue but eventually when all the node is > updated will the cluster be fine. > > The above question may sound little weird but in short I am asking this > because the legacy set-up in which I am working right now does not have any > centralized mechanism to control upgrade like secondary NN first then > primary & so on. >
