private async Task <StartRevalidationStatus?> CanStartRevalidationAsync()
{
if (!await _singletonService.IsSingletonAsync())
{
_logger.LogCritical("Detected another instance of the revalidate job, cancelling revalidations!");
return(StartRevalidationStatus.UnrecoverableError);
}
if (await _jobState.IsKillswitchActiveAsync())
{
_logger.LogWarning("Revalidation killswitch has been activated, retry later...");
return(StartRevalidationStatus.RetryLater);
}
if (await _throttler.IsThrottledAsync())
{
_logger.LogInformation("Revalidations have reached the desired event rate, retry later...");
return(StartRevalidationStatus.RetryLater);
}
if (!await _healthService.IsHealthyAsync())
{
_logger.LogWarning("Service appears to be unhealthy, resetting the desired package event rate. Retry later...");
await _jobState.ResetDesiredPackageEventRateAsync();
return(StartRevalidationStatus.RetryLater);
}
if (await _jobState.IsKillswitchActiveAsync())
{
_logger.LogWarning("Revalidation killswitch has been activated after the throttle and health check, retry later...");
return(StartRevalidationStatus.RetryLater);
}
return(null);
}