[FEATURE] Add configurable LogLevel for cache operations

[ZephireNZ]

Problem

FusionCache has "noisy" Information logs which cannot be changed.

Unless we change minimum log level to Warning (and potentially lose out on some other helpful logs), we are sending over 400 million logs a day to our log index with debug information like:

FUSION [N="FusionCache" I="0HNIIUAFGVRGU"] (O="0HNIIUAFH0SVJ" K="<snip>"): GetOrSetAsync<T> call "FEO[DUR=1m LKTO=/ SKMR=N SKMW=N SKDR=N SKDW=N SKDRWS=N MDUR=/ DDUR=/ JIT=2s PR=N SZ=/ FS=Y FSMAX=01:00:00 DFSMAX=/ FSTHR=10s FSTO=1s FHTO=/ TOFC=N DSTO=1s DHTO=/ ABDO=Y SBN=N ABBO=Y AC=N]"
FUSION [N="FusionCache" I="0HNIIUAFGVRGU"] (O="0HNIIUAFH0SVG" K="<snip>"): GetOrSetAsync<T> return "FE(M)[T=2026-01-13T22:29:33.810441, LEXP=2026-01-13T22:30:33.810441][S=N, EEXP=/, LM=/, ET=/, S=/, P=Normal]"

Solution

Similar to other logging in the library, add a configurable LogLevel for these logs.

Alternatives

Using built in minimum LogLevel but this is not particularly granular.

Additional context

This was changed somewhat recently from Debug to Information level:
371e627

[jodydonetti]

Hi @ZephireNZ

thanks for using FusionCache and for yout input.
First thing to know is that I'm about to revamp the logging part, for which I'm planning to do multiple things to make it even better.
One of these things is to allow the level of configuration you are talking about for each part of FusionCache like L1, L2, backplane, etc.

The idea is that you can enable logging for just some of these parts, so if you are interested in investigating only the L2 behavior you can avoid the extra info.
Same thing about the top-level method calls.

I'll share more info about my plans soon in a dedicated issue to discuss the details and keep things tracked.

FusionCache has "noisy" Information logs which cannot be changed.

Unless we change minimum log level to Warning (and potentially lose out on some other helpful logs), we are sending over 400 million logs a day to our log index with debug information like:
[...]

Alternatives

Using built in minimum LogLevel but this is not particularly granular.

Question: have you thought about changing the minimum level only for FusionCache?
I mean by namespace prefix, as is usual in .NET, so you don't lose some other helpful logs.
Or you mean that even that is not granular enough?

Additional context

This was changed somewhat recently from Debug to Information level

Almost a year ago in v2.2.0, but yes it was a change from the past.