Feature #17694

[Keep][keep-web] improve observability of buffer cache

Added by Ward Vandewege 4 months ago. Updated 4 months ago.

Status:
New
Priority:
Normal
Assigned To:
-
Category:
-
Target version:
-
Start date:
Due date:
% Done:

0%

Estimated time:
Story points:
-

Description

The keep-web buffer cache can cause a major performance bottleneck when it is not configured appropriately for the traffic load. This problem is more or less invisible from prometheus because we lack metrics

Add metrics for:

  • number of blocks in use in the WebDAVCache
  • block churn - can we expose # of blocks that were evicted from the cache while in use? If that's not possible, maybe just the # of cache evictions.
  • CollectionBytes in use in the WebDAVCache

History

#2 Updated by Ward Vandewege 4 months ago

  • Description updated (diff)

Also available in: Atom PDF