[CASSANDRA-15719] DOC - Primary range repair should be run on every datacenter

• Type: Bug
• Status: Resolved
• Priority: Normal
• Resolution: Fixed
• Fix Version/s: NA
• Component/s: Documentation/Blog
• Bug Category: Documentation
• Severity: Normal
• Complexity: Normal
• Discovered By: User Report
• Platform: All
• Since Version: NA

Source Control Link

https://github.com/apache/cassandra/commit/2aa2b59d37899fbe114bdd75e09c10699729c32a

Test and Documentation Plan

review

• Assignee: Annette Dennis
• Reporter: Jane Deng

Authors

Annette Dennis

Reviewers

Stefan Miklosovic

• Created: 13/Apr/20 17:28
• Updated: 16/Feb/24 12:43
• Resolved: 16/Feb/24 12:43

Description

In the Cassandra document page: http://cassandra.apache.org/doc/latest/operating/repair.html, there is an explanation which makes confusion on users' side:

The -pr flag will only repair the “primary” ranges on a node, so you can repair your entire cluster by running nodetool repair -pr on each node in a single datacenter.

This made confusion that "running nodetool repair -pr on each node in a single DC" was sufficient to do a full repair on a multi-DC cluster.

The correct way to use the primary range repair should be

if you are using “nodetool repair -pr” you must run it on EVERY node in EVERY data center, no skipping allowed.

Please make a doc fix. Thanks.