HOTKEYS

Syntax text Syntax diagram

HOTKEYS

Available since:

Redis Open Source 8.6.0

Time complexity:

Depends on subcommand.

ACL categories:

@slow,

This is a container command for hotkeys tracking commands that provides a method for identifying hotkeys inside a Redis server during a specified tracking time period.

Hotkeys in this context are defined by two metrics:

• Percentage of CPU time spent on the key from the total time during the tracking period.
• Percentage of network bytes (input + output) used for the key from the total network bytes used by Redis during the tracking period.

Usage

The general workflow is for the user to initiate a hotkeys tracking process which should run for some time. The keys' metrics are recorded inside a probabilistic data structure, after which the user is able to fetch the top K metrics.

Available subcommands:

• HOTKEYS START - Starts hotkeys tracking with specified metrics.
• HOTKEYS STOP - Stops hotkeys tracking but preserves data.
• HOTKEYS GET - Returns tracking results and metadata.
• HOTKEYS RESET - Releases resources used for tracking.