MediaLive Stream Bad Performance

Question

Hey,
yesterday i tried to setup an mp4 movie as a live-stream following these instructions: https://aws.amazon.com/blogs/media/metfc-live-stream-pre-recorded-video-using-aws-elemental-medialive/
The input was a 4.4 GB mp4 file and when testing, everything worked fine and i didn't find any issues...
When it came to the stream really starting with about ~400 viewers, nearly all users had problems with the stream not running constantly... always having to reload the page where the video-player was embedded (as explained in the link)...
so the medialive stream input/output was constantly running and there were no errors/alerts on aws side...

i really don't have any idea what could have been wrong here and want to ask what i could have missed? any special settings other than proposed in the link?

Would be very thankful for any hint :)

Kind regards
Simon

Answer

I tested a bit around, and what i found out is, when i use the "Workflow Wizard" which is available in the AWS Elemental MediaLive Service, then the HLS Settings are different in the output group. CDN Settings are set to "HLS webdav". In the instructions i posted above there is mentioned setting this to "HLS media store". If i compare the files available in the mediastore, then with the instructions i only have some ".m3u8" files available there. When using the wizard, then i have these .m3u8 files (one for every resolution) and additionally tons of ".ts" files. 
Does this maybe have any impact related to my issue?

Answer

Hi Simon,

The first thing that comes to mind is to check and confirm that the URL being passed to the player is pointing at the CloudFront distribution rather than directly to the MediaStore container. You can confirm this by noting whether the domain name ends in "mediastore..amazonaws.com" rather than ending in "cloudfront.net"

Regards,

Steve

MediaLive Stream Bad Performance

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