[CASSANDRA-14795] Expose information about stored hints via a nodetool command and a virtual table

• Type: Improvement
• Status: Resolved
• Priority: Low
• Resolution: Fixed
• Fix Version/s: 4.1-alpha1, 4.1
• Component/s: Legacy/Observability

Source Control Link

https://github.com/apache/cassandra/commit/fc27042f61a6d78ec998a0186a5e97def90fd50a

Test and Documentation Plan

Added a dtest for the new nodetool command and the virtual table.

• Assignee: Alex Sorokoumov
• Reporter: Alex Sorokoumov

Authors

Alex Sorokoumov

Reviewers

Aleksei Zotov, Ekaterina Dimitrova, Stefan Miklosovic

• Created: 27/Sep/18 13:12
• Updated: 27/May/22 19:25
• Resolved: 13/Oct/21 03:52

Description

Currently there is no way to determine what kind of hints a node has, apart from looking at the filenames (thus host-ids) on disk. Having a way to access this information would help with debugging hint creation/replay scenarios.
In addition to the JMX method, there is a new nodetool command:

$ bin/nodetool -h 127.0.0.1 -p 7100 listendpointspendinghints
Host ID Address Rack DC Status Total files Newest Oldest
5762b140-3fdf-4057-9ca7-05c070ccc9c3 127.0.0.2 rack1 datacenter1 DOWN 2 2018-09-18 14:05:18,835 2018-09-18 14:05:08,811