| commit | 763d964b7428bbc16db7354332b5d43b93bbc9b0 | [log] [tgz] |
|---|---|---|
| author | buchgr <buchgr@google.com> | Tue Sep 12 12:41:31 2017 +0200 |
| committer | Philipp Wollermann <philwo@google.com> | Tue Sep 12 14:08:30 2017 +0200 |
| tree | b9afa77afc46cf433fe8e7419bf1fb70cc3d3a02 | |
| parent | 31089bba3aecc9192220ab91a0149560498f6965 [diff] |
remote: Add new retrier with support for circuit breaking Add a generic retrier implementation (Retrier2) that can be configured by plugging in a backoff strategy, a function to decide on retriable errors and a circuit breaker. A concrete implementation is added via RemoteRetrier that mostly is a copy of the code of the existing Retrier. Retrier2 adds support for circuit breaking [1]. It allows the retrier to reject execution when failure rates are high. The remote execution code will use this to gently switch between local and remote execution/caching if the latter experiences lots of failures. Retrier2 is also useful when not used with gRPC. We need retriers for the HTTP caching interface too. All the code added in this CL is unused, to keep reviews managable. In a follow up CL, I will switch the code to use the new Retrier and delete the old retrier. [1] https://martinfowler.com/bliki/CircuitBreaker.html PiperOrigin-RevId: 168355597
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