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I am using a Linux CENTOS 6 server with Plesk 10.4.4 Apache and Wowza Media Server 3. The server is a quad core and has 12GB RAM.


I was having a problem with some Wordpress websites that utilize lots of CPU when running custom CRON jobs, so I looked for ways to make the server faster.

I first installed eAccelerator, and that caused alot of my MYSQL tables to crash and some other problems arose. I uninstalled it and everything went back to normal.

Next, I found people were getting some good results with APC and Memcache, so I installed them after a yum update.


All RTMP streamed videos are buffering after playing only a few seconds, but the server load is practically nothing. This was not happening before all those changes.

load average: 0.01, 0.04, 0.06

Here's an example (please see the video in the header section, they rotate each page load): http://activemd.net/index.php


I disabled APC and removed memcache.

I am still having the same problem of every video I try to stream. They all buffer after only a few seconds.

Another observation I'll make is that APC and memcache seemed to make my PHP pages load slower. After disabling those modules, they now load faster.


  1. What can I do to stop my videos from buffering?
  2. Could one of the changes I made have affected the way my videos are streaming?
  3. What are some troubleshooting steps I can take to isolate the problem of my videos always buffering?

Any help is much appreciated, Rick

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Did you tune your Wowza server based on your hardware ? If no, follow this link http://www.wowza.com/forums/content.php?46

There is not a server side buffering in the wowza media server.

If you are trying to stream video to n number of devices. I recommends you use a standalone Wowza media server.

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