[fix]: add some log for naming selectInstances

[robynron]

No description provided.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (79bf755) 29.54% compared to head (994714f) 29.69%.

❗ Current head 994714f differs from pull request most recent head c271f94. Consider uploading reports for the commit c271f94 to get more accurate results

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Additional details and impacted files

@@            Coverage Diff             @@
##           master     #681      +/-   ##
==========================================
+ Coverage   29.54%   29.69%   +0.15%     
==========================================
  Files          40       40              
  Lines        3121     3122       +1     
==========================================
+ Hits          922      927       +5     
+ Misses       2131     2128       -3     
+ Partials       68       67       -1     

Files	Coverage Δ
clients/naming_client/naming_client.go	34.65% <100.00%> (+0.32%)	⬆️

... and 1 file with indirect coverage changes

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