Thank you all for the suggestions. I am not trying to scale up the cluster for capacity but for the upgrade process instead of in place upgrade I am planning to add nodes with 3.11.6 and then decommission the nodes with 3.11.3.
On Wednesday, June 24, 2020, Durity, Sean R <sean_r_dur...@homedepot.com> wrote: > Streaming operations (repair/bootstrap) with different file versions is > usually a problem. Running a mixed version cluster is fine – for the time > you are doing the upgrade. I would not stay on mixed versions for any > longer than that. It takes more time, but I separate out the admin tasks so > that I can reason what should happen. I would either scale up or upgrade > (depending on which is more urgent), then do the other. > > > > > > Sean Durity > > > > *From:* manish khandelwal <manishkhandelwa...@gmail.com> > *Sent:* Wednesday, June 24, 2020 5:52 AM > *To:* user@cassandra.apache.org > *Subject:* [EXTERNAL] Re: Cassandra upgrade from 3.11.3 -> 3.11.6 > > > > Rightly said by Surbhi, it is not good to scale with mixed versions as > debugging issues will be very difficult. > > Better to upgrade first and then scale. > > > > Regards > > > > On Wed, Jun 24, 2020 at 11:20 AM Surbhi Gupta <surbhi.gupt...@gmail.com> > wrote: > > In case of any issue, it gets very difficult to debug when we have > multiple versions. > > > > On Tue, 23 Jun 2020 at 22:23, Jürgen Albersdorfer <jalbersdor...@gmail.com> > wrote: > > Hi, I would say „It depends“ - as it always does. I have had a 21 Node > Cluster running in Production in one DC with versions ranging from 3.11.1 > to 3.11.6 without having had any single issue for over a year. I just > upgraded all nodes to 3.11.6 for the sake of consistency. > > Von meinem iPhone gesendet > > > > Am 24.06.2020 um 02:56 schrieb Surbhi Gupta <surbhi.gupt...@gmail.com>: > > > > > > Hi , > > > > We have recently upgraded from 3.11.0 to 3.11.5 . There is a sstable > format change from 3.11.4 . > > We also had to expand the cluster and we also discussed about expansion > first and than upgrade. But finally we upgraded and than expanded. > > As per our experience what I could tell you is, it is not advisable to add > new nodes on higher version. > > There are many bugs which got fixed from 3.11.3 to 3.11.6. > > > > Thanks > > Surbhi > > > > On Tue, Jun 23, 2020 at 5:04 PM Jai Bheemsen Rao Dhanwada < > jaibheem...@gmail.com> wrote: > > Hello, > > > > I am trying to upgrade from 3.11.3 to 3.11.6. > > Can I add new nodes with the 3.11.6 version to the cluster running with > 3.11.3? > > Also, I see the SSTable format changed from mc-* to md-*, does this cause > any issues? > > > > > ------------------------------ > > The information in this Internet Email is confidential and may be legally > privileged. It is intended solely for the addressee. Access to this Email > by anyone else is unauthorized. If you are not the intended recipient, any > disclosure, copying, distribution or any action taken or omitted to be > taken in reliance on it, is prohibited and may be unlawful. When addressed > to our clients any opinions or advice contained in this Email are subject > to the terms and conditions expressed in any applicable governing The Home > Depot terms of business or client engagement letter. The Home Depot > disclaims all responsibility and liability for the accuracy and content of > this attachment and for any damages or losses arising from any > inaccuracies, errors, viruses, e.g., worms, trojan horses, etc., or other > items of a destructive nature, which may be contained in this attachment > and shall not be liable for direct, indirect, consequential or special > damages in connection with this e-mail message or its attachment. >
