support whole cluster info for INFO command in cluster section

[soloestoy]

Allow users to more easily get cluster information.

[hpatro]

I'm fine with this.

The only risk I would like to call out is we have been wary of increasing the info and info all command response size to avoid tail latency for other commands.

[enjoy-binbin]

1c708b2

Seems ok to me. Does anyone know the history? why we have this cluster section and have the CLUSTER INFO command.

[ranshid]

I have the same concern as @hpatro, since this would increase the latency when the cluster has a large number of nodes.
However, since info all command already performs horribly and the best practice is to explicitly define the sections of interest to avoid potential degradation I think this is fine

[ranshid]

I have the same concern as @hpatro, since this would increase the latency when the cluster has a large number of nodes.
However, since

1c708b2

Seems ok to me. Does anyone know the history? why we have this cluster section and have the CLUSTER INFO command.

I can only imagine that it was meant to avoid bloating the already extensive info output.
Another thing is that it might be related to security? I mean in some cases it might be harder to prevent exposing cluster internal stats (even though I can hardly imagine how can this be exploited)

[codecov]

Codecov Report

❌ Patch coverage is 75.00000% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 72.45%. Comparing base (da3c43d) to head (959c889).
⚠️ Report is 18 commits behind head on unstable.

Files with missing lines	Patch %	Lines
src/debug.c	0.00%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##           unstable    #2876      +/-   ##
============================================
+ Coverage     72.43%   72.45%   +0.02%     
============================================
  Files           128      128              
  Lines         70439    70439              
============================================
+ Hits          51022    51038      +16     
+ Misses        19417    19401      -16     

Files with missing lines	Coverage Δ
src/cluster.c	90.46% <100.00%> (+0.26%)	⬆️
src/cluster_legacy.c	87.43% <100.00%> (-0.15%)	⬇️
src/server.c	88.55% <100.00%> (+0.14%)	⬆️
src/debug.c	54.63% <0.00%> (ø)

... and 14 files with indirect coverage changes

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