enhance: add debug log on collection load

[xiaofan-luan]

issue #45864
added some logs for debugging

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 83.15%. Comparing base (7078f40) to head (c4a2949).
⚠️ Report is 10 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff             @@
##           master   #45863       +/-   ##
===========================================
+ Coverage   76.26%   83.15%    +6.89%     
===========================================
  Files        1878      521     -1357     
  Lines      293457    81515   -211942     
===========================================
- Hits       223802    67784   -156018     
+ Misses      62220    13731    -48489     
+ Partials     7435        0     -7435     

Components	Coverage Δ
Client	∅ <ø> (∅)
Core	83.15% <ø> (ø)
Go	∅ <ø> (∅)
see 1357 files with indirect coverage changes

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