Cassandra World Party CFP Closes 6/19; Reminder to Register

Hello! A friendly reminder that the *Cassandra World Party CFP is closing this Sunday, June 19. * We are excited to see the talks submitted so far, and hope you’ll consider submitting one if you haven’t already. Topics can range from anyth

Cassandra 3.0 upgrade

Hi, I am running Cassandra version 3.0.14 at scale on thousands of nodes. I am planning to do a minor version upgrade from 3.0.14 to 3.0.26 in a safe manner. My eventual goal is to upgrade from 3.0.26 to a major release 4.0. As you know, there are multiple minor releases between 3.0.14 and 3.0.26

Re: Cassandra 3.0 upgrade

The versions with caveats should all be enumerated in https://github.com/apache/cassandra/blob/cassandra-3.0/NEWS.txt The biggest caveat was 3.0.14 (which had the fix for cassandra-13004), which you're already on. Personally, I'd qualify exactly one upgrade, and rather than doing 3 different upgr

Re: Cassandra 3.0 upgrade

Thank you for reaching out, and for planning the upgrade! Upgrading from 3.0.14 to 3.0.27 would be best, followed by upgrading to 4.0.4. 3.0.14 contains a number of serious bugs that are resolved in more recent 3.0.x releases (3.0.19+ are generally good/safe). Upgrading to 3.0.27 will put you on

Re: Cassandra 3.0 upgrade

Thanks Jeff and Scott for valuable feedback! One more question, do we have to upgrade the dTest repo if we go to 3.0.27, or the one we have currently already working with 3.0.14 should continue to work fine? Jaydeep On Mon, Jun 13, 2022 at 10:25 PM C. Scott Andreas wrote: > Thank you for reachi

Re: Cassandra 3.0 upgrade

If you have a fork of Cassandra with custom patches and build/execute the dtest suite as part of qualification, you’d want to upgrade that as well. Note that in more recent 3.0.x releases, the project also introduced in-JVM dtests. This is a new suite that serves a similar purpose to the Python

Re: Cassandra 3.0 upgrade

Yeah, we have a fork of Cassandra with custom patches, and a fork of dtest with some additional custom tests, so we will have to upgrade dtest as well. Is there any specific tag of dtest we should use or the latest trunk is fine to test against 3.0.27? Jaydeep On Mon, Jun 13, 2022 at 10:51 PM C.