rob05c opened a new pull request #5066:
URL: https://github.com/apache/trafficcontrol/pull/5066
Fixes TO to generate monitoring if no snapshot.
This fixes a critical issue of upgrading to 4.x breaking production CDNs
until a Snapshot is done.
Includes tests.
Includes changelog.
No docs, no interface change.
- [x] This PR does part of #5005 but that issue requires the 4.x Backport as
well
## Which Traffic Control components are affected by this PR?
- Traffic Ops
## What is the best way to verify this PR?
Request the /monitoring endpoint on a TO CDN with no CRConfig/Monitoring
Snapshot, verify endpoint returns full monitoring not `""` or `{}`. Verify TO
logs an Error that a snapshot needs to be performed.
## If this is a bug fix, what versions of Traffic Control are affected?
- master
- 4.x
## The following criteria are ALL met by this PR
- [x] This PR includes tests OR I have explained why tests are unnecessary
- [x] This PR includes documentation OR I have explained why documentation
is unnecessary
- [x] This PR includes an update to CHANGELOG.md OR such an update is not
necessary
- [x] This PR includes any and all required license headers
- [x] This PR ensures that database migration sequence is correct OR this PR
does not include a database migration
- [x] This PR **DOES NOT FIX A SERIOUS SECURITY VULNERABILITY** (see [the
Apache Software Foundation's security
guidelines](https://www.apache.org/security/) for details)
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