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Limit the connection retry delay to no longer than the healthcheck timeout #4775

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Merged
mpawliszyn merged 1 commit into from
Apr 3, 2019
Merged

Limit the connection retry delay to no longer than the healthcheck timeout #4775

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4 changes: 4 additions & 0 deletions go/vt/discovery/healthcheck.go
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Original file line number Diff line number Diff line change
Expand Up @@ -576,6 +576,10 @@ func (hc *HealthCheckImpl) checkConn(hcc *healthCheckConn, name string) {
case <-time.After(retryDelay):
// Exponentially back-off to prevent tight-loop.
retryDelay *= 2
// Limit the retry delay backoff to the health check timeout
if retryDelay > hc.healthCheckTimeout {
retryDelay = hc.healthCheckTimeout
}
}
}
}
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