Proxy configuration update without 404

[kyessenov]

@kyessenov commented on Mon Oct 09 2017

Changes to service, ingresses, or CRDs can cause 404 for live traffic due xDS protocol not staging updates between RDS/CDS/EDS.
Proxy should not apply partial xDS configuration update.

Also:

• istioctl replace an existing rule causes a 404 reponse old_pilot_repo#926
• ingress with simple routes periodically 503ing (was 404) #1038
• Envoy returning error while rules are updating old_pilot_repo#1325

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@rshriram commented on Mon Oct 09 2017

isn't this a duplicate of v2 API issue ( #1257 ) ? Because as part of the move, ADS is a natural outcome.

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@kyessenov commented on Mon Oct 09 2017

Yes, it's a dependency, but we need to verify that it solves the issue and add regression tests.

[louiscryan]

There are a lot of 'config push implies 4040/503' that seem like duplicates.

[stale]

This issue has been automatically marked as stale because it has not had activity in the last 30 days. It will be closed in the next 2 weeks unless it is tagged "help wanted" or other activity occurs. Thank you for your contributions.