fgm / drupal_redis_stats

Report on Drupal 10/Drupal 9 cache bins stored in Redis

Drupal Redis Stats

This command provides a summary of the use of a Redis database by the Drupal 10 or Drupal 9 cache provider.

It relies on Redis SCAN operator instead of KEYS, so it won't block your site when used on production.

Installing

Assuming Go 1.21 or later installed:

go get -u github.com/fgm/drupal_redis_stats

Using

Flags

• -h provides help
• -dsn flag allows using a non-default Redis
  • -dsn redis://<host>:<port>/<db> without authentication
  • -dsn redis://<password>@<host>:<port>/<db> for requirepass AUTH mode
  • -dsn redis://<user>:<password>@<host>:<port>/<db> for ACL AUTH mode
• -json provides JSON output instead of the default human-readable format
• -q disables the progress bar used during the database SCAN loop

Sample results

Bin                | Entries |     Size
-------------------+---------+---------
bootstrap          |      10 |     6056
config             |    7992 |  4741812
data               |   10483 |  7717813
default            |     183 |   130061
discovery          |     240 |   164028
dynamic_page_cache |    6104 | 11225548
entity             |     785 |   506817
menu               |      28 |    30646
page               |    6125 |  5222326
render             |   12877 | 19965812
-------------------+---------+---------
Total              |   44832 | 49714857

The Entries column provides the number of entries in a cache bin, while the Size bin provides the size used by keys and data in Redis storage, based on information provided by the MEMORY USAGE command.