Usage and Tracking of Cache Layer Feature

[srinath-chandra]

We have recently enabled the Layer Caching feature and tested some large pulls, but I don't see any improvements in the performance or in time and even I don't see any spike on our Azure Redis Cache usage and even anything in Harbor logs!

cache:
  # default is not enabled.
  enabled: true
  # default keep cache for one day.
  expireHours: 24

Is there any other configuration, I'm missing and how could we track the layer caching operation?

Can someone please advise.

[wy65701436]

Hi @srinath-chandra, based on the information provided in this wiki, enabling the CDN to cache blob files is necessary to achieve improvements in large-scale pulling scenarios.

Once the cache layer is enabled, you should see a marked improvement in overall performance. For more details, please refer to the improvements listed in the wiki.

cc @chlins

[srinath-chandra]

Thanks for the Response @wy65701436
Currently, This feature seems to use Redis for the manifest caching and should be able to see the improvements when we hit the high concurrent pull request rates.