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Aleksey Yeschenko updated CASSANDRA-6038: ----------------------------------------- Assignee: (was: Aleksey Yeschenko) > Support schema changes in mixed version clusters > ------------------------------------------------ > > Key: CASSANDRA-6038 > URL: https://issues.apache.org/jira/browse/CASSANDRA-6038 > Project: Cassandra > Issue Type: Sub-task > Reporter: Aleksey Yeschenko > Labels: client-impacting > Fix For: 3.x > > > CASSANDRA-5845 made it so that schema changes in a major-mixed cluster are > not propagated to the minorer-major nodes. This lets us perform > backwards-incompatible schema changes in major releases safely - like adding > the schema_triggers table, moving all the aliases to schema_columns, getting > rid of the deprecated schema columns, etc. > Even this limitation might be too strict, however, and should be avoided if > possible (starting with at least versioning schema separately from messaging > service versioning, and resorting to major->minor schema block only when > truly necessary and not for every x->y pair). -- This message was sent by Atlassian JIRA (v6.3.4#6332)