[ https://issues.apache.org/jira/browse/CASSANDRA-10146?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Michael Shuler updated CASSANDRA-10146: --------------------------------------- Fix Version/s: (was: 2.2.x) 2.1.10 2.2.2 > Deprecate v1 and v2 protocol in 2.2, drop support in 3.0 > -------------------------------------------------------- > > Key: CASSANDRA-10146 > URL: https://issues.apache.org/jira/browse/CASSANDRA-10146 > Project: Cassandra > Issue Type: Task > Components: Legacy/CQL > Reporter: Tyler Hobbs > Assignee: Benjamin Lerer > Priority: Normal > Labels: client-impacting, doc-impacting > Fix For: 2.1.10, 2.2.2, 3.0.0 rc1 > > > In 3.0, we would like to use frozen collections in the system keyspaces, and > it seems likely that we will eventually want to use tuples or nested > collections as well. Drivers that only support protocol versions 1 and 2 > will not be able to read these system keyspaces because they cannot decode > those types. > I think this is a good time to start deprecating and dropping support for old > protocol versions. The v3 protocol was introduced in 2.1, so if we remove > support for v1 and v2 in 3.0, that gives users two major versions to upgrade > their drivers. Fortunately, upgrading drivers to a version that supports the > v3 protocol is generally straightforward. > The benefits of doing this are: > * We can use new types in the system keyspaces > * We can eliminate protocol-version-specific encoding and decoding of > collections within Cassandra > * Driver maintainers can eventually drop support for old protocol versions > once all C* versions that support them are EOL > To avoid a hard drop of v1 and v2 support in 3.0, I propose that we also > officially deprecate these in 2.2. Unfortunately, we don't have > protocol-level warnings until v4, so we can't use that to notify users of the > deprecation, but the combination of a NEWS.txt entry, warning logs, and > (potentially) driver-level warnings should suffice. -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@cassandra.apache.org For additional commands, e-mail: commits-h...@cassandra.apache.org