Fix Graphite queries and error handling in availability stats for device groups

[johannaengland]

Closes #2345

[codecov]

Codecov Report

Merging #2434 (56a9cc1) into master (524aac8) will decrease coverage by 0.03%.
The diff coverage is 33.33%.

@@            Coverage Diff             @@
##           master    #2434      +/-   ##
==========================================
- Coverage   52.73%   52.70%   -0.04%     
==========================================
  Files         553      553              
  Lines       40201    40215      +14     
==========================================
- Hits        21202    21196       -6     
- Misses      18999    19019      +20     

Impacted Files	Coverage Δ
python/nav/web/info/room/views.py	30.45% <0.00%> (-0.28%)	⬇️
python/nav/web/info/netboxgroup/views.py	28.81% <14.28%> (-1.38%)	⬇️
python/nav/metrics/data.py	55.65% <62.50%> (+0.60%)	⬆️
python/nav/ipdevpoll/pool.py	84.88% <0.00%> (-5.04%)	⬇️
python/nav/util.py	77.58% <0.00%> (+0.86%)	⬆️

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[github-actions]

Test results

     12 files       12 suites   11m 25s ⏱️
3 088 tests 2 992 ✔️   96 💤 0 ❌
8 739 runs  8 451 ✔️ 288 💤 0 ❌

Results for commit 56a9cc1.

♻️ This comment has been updated with latest results.

[lunkwill42]

The graphite error reporting is beautifully done, but there are some issues we should discuss/research when it comes to the chunking parts.

[sonarqubecloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
0.0% Duplication

[lunkwill42]

👍