We're running Wowza Streaming Engine 4.2.0 on Linux. We've got 4 RTSP live streams from 4 AXIS cameras, and we are recording one of those streams.
Last week, we noticed that 3 of the cameras starting dropping frames. Every so often (perhaps every 2 hours?), the video freezes for ~ 1/4 second, then resumes for 1/2 sec, then freezes, etc. After a varying number of minutes, the freezing stops and the video looks perfect.
Two of the streams are 720p; the other two are 1080p.
Each of the stream URIs is very straightforward, i.e., rtsp://nameofcamera.wellesley.edu/axis-media/media.amp
We're using Flowplayer 6.0.3 (HTML5) to play the HLS streaming playlist.m3u8
There are usually ~35 connections to the server. CPU usage is ~ 20%. Wowza Heap is ~45%. Total Memory is about 95% (3.6 GB) Total Disk is ~ 20%. Bits out on the Network maxes out at ~ 80Mbps.
Any ideas on how we should troubleshoot? Any data points about our server or setup I forgot to include?