public async Task SynchronizeSplits(long targetChangeNumber)
{
try
{
if (targetChangeNumber <= _splitCache.GetChangeNumber())
{
return;
}
var fetchOptions = new FetchOptions {
CacheControlHeaders = true
};
var result = await AttempSplitsSync(targetChangeNumber, fetchOptions, _onDemandFetchMaxRetries, _onDemandFetchRetryDelayMs, false);
if (result.Success)
{
await _segmentFetcher.FetchSegmentsIfNotExists(result.SegmentNames);
_log.Debug($"Refresh completed in {_onDemandFetchMaxRetries - result.RemainingAttempts} attempts.");
return;
}
fetchOptions.Till = targetChangeNumber;
var withCDNBypassed = await AttempSplitsSync(targetChangeNumber, fetchOptions, OnDemandFetchBackoffMaxRetries, null, true);
if (withCDNBypassed.Success)
{
await _segmentFetcher.FetchSegmentsIfNotExists(withCDNBypassed.SegmentNames);
_log.Debug($"Refresh completed bypassing the CDN in {OnDemandFetchBackoffMaxRetries - withCDNBypassed.RemainingAttempts} attempts.");
}
else
{
_log.Debug($"No changes fetched after {OnDemandFetchBackoffMaxRetries - withCDNBypassed.RemainingAttempts} attempts with CDN bypassed.");
}
}
catch (Exception ex)
{
_log.Error($"Exception caught executing SynchronizeSplits. {targetChangeNumber}", ex);
}
}
