[CASSANDRA-4351] Consider storing more informations on peers in system tables

• Type: Improvement
• Status: Resolved
• Priority: Low
• Resolution: Fixed
• Fix Version/s: 1.2.0 beta 2
• Assignee: Sylvain Lebresne
• Reporter: Sylvain Lebresne

Authors

Sylvain Lebresne

Reviewers

Jonathan Ellis

• Created: 18/Jun/12 08:10
• Updated: 16/Apr/19 09:32
• Resolved: 05/Oct/12 17:05

Description

Currently, the only thing we keep in system tables about other peers is their token and IP addresses. We should probably also record the new ring_id, but since CASSANDRA-4018 makes system table easily queriable, may it could be worth adding some more information (basically most of what we gossip could be a candidate (schema UUID, status, C* version, ...)) as a simple way to expose the ring state to users (even if it's just a "view" of the ring state from one specific node I believe it's still nice).

Of course that means storing information that may not be absolutely needed by the server, but I'm not sure there is much harm to that.

Note that doing this cleanly may require changing the schema of current system tables but as long as we do that in the 1.2 timeframe it's ok (since the concerned system table 'local' and 'peers' are news anyway).