Hi community, Wonder if you can help me.
I have a cluster on v3.0.11 I am planning to upgrade this to 3.10. Is rolling back the binaries a viable solution? From reading blogs and such, I’ve read that downgrading is a no-no. Whilst it is possible literally and in theory possible, many of the Cassandra experts say you can only go forward and not back. In our lab environment I have attempted a rollback. The version was on 3.10, I have rolled it back to 3.0.11 and then upgraded back to 3.10 , no sstable restoration, just a straight copy back of the binaries of the old version, and and copy over of the new binaries. A rolling restart and then a repair. Everything went smoothly, no issues. The repair process has been working without issue since, I’ve not noticed any issues with the cluster. Firstly Is there anything I should be aware of, would this have caused an issue? In a production upgrade scenario should I avoid rolling back, unless I restore? I’d like to understand if it’s a viable solution or not. The upgrade we are due to perform is from the tarball files, the bash script that we have engineered work quickly and efficiently, I don’t have any worries of the upgrade, I just need to understand if I should factor rollback as part of this plan. In the event that a failure of the upgrade occurs should I plan to restore the data and reinstall the version? Thanks in advance J ________________________________________________________________________ This e-mail may contain confidential and/or privileged information. If you are not the intended recipient (or have received this e-mail in error) please notify the sender immediately and destroy it. Any unauthorized copying, disclosure or distribution of the material in this e-mail is strictly forbidden. Tradeweb reserves the right to monitor all e-mail communications through its networks. If you do not wish to receive marketing emails about our products / services, please let us know by contacting us, either by email at contac...@tradeweb.com or by writing to us at the registered office of Tradeweb in the UK, which is: Tradeweb Europe Limited (company number 3912826), 1 Fore Street Avenue London EC2Y 9DT. To see our privacy policy, visit our website @ www.tradeweb.com.
