Restream from CDN, how to synch multiple servers?

Wowza Streaming Engine
1

I have the task of restreaming a RTMP stream that exists on a CDN. We currently pull the stream with streammanager and then make it available as HLS. However, we have multi-server environment and would like to build in some redundancy on the mechanism which pulls and segments.

If we were to use two origins ( which is the normal approach) then each origin produces

  1. differently named .ts files

  2. splits the segments at different keyframes.

W are using the HTTP cache origin feature to remove the ?wowzasessionid so that the resultant segments can be CDN cached in return.

Is there a way of synching and asking for similar names across the origins or another way to build redundancy?

Thanks,

Joe

2

Joe,

There is nothing built-in to Wowza to sync servers in this way. You can configure primary and backup origins using pipe delimited urls in your .stream file, but the failover happens when a client connects, and this is not going to work for HTTPOrigin server because clients playback the CDN cache not from Wowza.

Richard

3

Joe,

You can sync chunks from the same source in two servers using the Application.xml /LiveStreamPacketizer cupertinoCalculateChunkIDBasedOnTimecode Property

		<Property>
		    <Name>cupertinoCalculateChunkIDBasedOnTimecode </Name>
		    <Type>Boolean</Type>
		    <Value>true</Value>
		</Property>

Richard

4

Joe,

You can sync chunks from the same source in two servers using the Application.xml /LiveStreamPacketizer cupertinoCalculateChunkIDBasedOnTimecode Property

		<Property>
		    <Name>cupertinoCalculateChunkIDBasedOnTimecode </Name>
		    <Type>Boolean</Type>
		    <Value>true</Value>
		</Property>

Richard

I’ve been trying to replicate this all day with no joy - I’ve added it into the /conf/livecf/Application.xml file from the new(ish) CloudFront distribution packages and it’s not creating the chunk Id based on timestamp - which is a problem

Any pointers would be wonderful thanks