16901
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Ran 17 Jan 2020 11:01PM UTC

Jobs 1

Files 271

Run time 19s

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Build # 16901

Build Type

push

travis-ci

Committed by

web-flow

Commit Message

xds: incorporate initial fetch timeout as resource not found for xDS protocol (#6570)

Use timeout to conclude resource not exist in xDS protocol.

RDS and EDS protocols are quasi-incremental, each response may not include all the requested resources that present on server side. The way to conclude a requested resource not exist is to use a timeout. In Envoy, this timeout is defined as initial fetch timeout, which is set up at the time client starts subscribing to some resource and disarmed at the time client receives update for that resource. In gRPC's implementation, we set this timeout to be constant 15 seconds, instead of getting its value from ConfigSource proto message.

Initial fetch timeout was initially considered to be not required for LDS and CDS. But gRPC is trying to avoid the temporary inconsistency in the case of racing request/response.

After resource fetch timers are fired, some resources are known to be absent for sure. XdsClient manages its knowledge for resources that are known to be present or absent with caches.

Run Details

16122 of 18426 relevant lines covered (87.5%)

0.87 hits per line

Jobs

ID	Job ID	Ran	Files	Coverage
1	16901.1	17 Jan 2020 11:01PM UTC	0	87.5	Travis Job 16901.1

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