Insufficient Bandwidth [5,4]

Wowza Streaming Engine
1

Hi guys,

I got “Insufficient Bandwidth [5,4]” WARN msg when I SEEK for a couple times with RTMPS streaming (RTMP is fine).

Any tips for this issue? Thanks in advance.

2

See this thread: https://www.wowza.com/forums/showthread.php?1912-Insufficient-Bandwidth-5-4

3

This is a sticky issue. If a user seeks over and over again and their bandwidth is lower than the bitrate of the video then the connection will get more and more behind. This feature attempts to stop responding to the seek requests so the connectioin does not cause memory runnup server side. We currently do not have a way to flush the pending responses when this occurs. You can control the number of seeks that occur before this feature kicks in using the following Streams/Properties in conf/[application]/Application.xml:

<Property>
	<Name>maxPendingSeekRequests</Name>
	<Value>4</Value>
	<Type>Integer</Type>
</Property>

Setting this value to 0 will turn off the feature but could lead to memory runnup server-side.

Charlie

4

This WARN line in the logs is nothing to be concerned about. There is no feature to shutdown. Ignore it.

Richard

5

That sounds like a bandwidth vs bitrate problem, which is not related to that WARN line. Try lower bitrate.

Richard

6

Do you have a player that shows this?

Richard

7

Does it happen with the Wowza sample.mp4 using the Wowza SimpleVideoStreaming player?

Richard

8

Thanks for your reply.

I saw this thread and there’s not sufficient information. I mean, “when people seek over and over again and their connection to the Wowza Pro is too slow to respond” doesn’t make sence.

Actually, I only seeked 4 times, yes always 4 times, and then got stuck. Also, rtmp & rtmpt both worked well. I don’t think that’s the connection bandwidth issue, unless there’s something to do with SSL.

Can I shut down this feature? Thanks.

9

Thanks Richard.

Actually, my players got stuck, videos kept freezing. No way to ingore it.

10

The previous video bitrate is 800kbps, and I tried a new one with 300kbps. All the same.

What’s interesting is the very begining 4 seek requests always work fine, but after that, I can only get Insufficient Bandwidth [5,4] WARNs and freezing pictures.

Is there any specific/optimized configuration regarding SSL, Richard? I reckon it’s a SSL issue. Thanks.

11

I checked the wowza access log.

I tried sample.mp4 and other files as well. Also, I tried SimpleVideoStreaming player, Strobe Media Player and our player either.

Whichever combination I tried, I got freezing picture and WARN msg after seeking for 4 times.

Please give me a hand. Thank you so much Richard.

12

Thanks Charlie. I’ll test this solution.

Hope you guys can make some further steps forward.