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Minimum delay for retries when central config cannot be retrieved #667

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github-actions merged 5 commits into from
Sep 21, 2022
Merged

Minimum delay for retries when central config cannot be retrieved #667

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352e047
Update configuration.md
jaggederest Aug 3, 2022
d05c939
Update configuration retry to use a fixed minimum time
jaggederest Aug 9, 2022
4a85600
Update configuration.md
jaggederest Aug 9, 2022
76fb301
Update configuration.md
jaggederest Sep 1, 2022
96e113e
Period.
felixbarny Sep 14, 2022
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2 changes: 2 additions & 0 deletions specs/agents/configuration.md
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Expand Up @@ -127,6 +127,8 @@ Central config failure. Invalid value for transactionSampleRate: 1.2 (out of ran

Failure to process one config attribute should not affect processing of others.

To ensure graceful recovery if the APM Server is offline or there is a network partition, agents should only retry at a maximum every 5 seconds, regardless of Cache-Control headers being less than that value. If the Cache-Control header is zero (or less than zero), it should be treated as missing (i.e. use default retry time).

#### Feature flag

Agents should implement a [configuration option](https://docs.google.com/spreadsheets/d/1JJjZotapacA3FkHc2sv_0wiChILi3uKnkwLTjtBmxwU), (`CENTRAL_CONFIG`) which lets users disable the central configuration polling.
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