TwonkyServer for WHS - Status Update
Posted: Wed Aug 18, 2010 11:05 pm
The have been a lot of misinformation posted online about the problems with high CPU utilization on HP MediaSmart servers, so we thought it might be a good time for a status update on this topic.
There are several different causes of high CPU usage on MediaSmart Servers.
Cause 1: The process of scanning an entire disk for media files, extracting all of the metadata, creating a media database and creating the full navigation tree is a CPU intensive process.
Status: Although we are continually optimizing the scanning process, this is not a bug -- it is expected behavior and CPU usage drops back to normal after the scanning process is complete.
Cause 2: Problems with high CPU usage that doesn’t drop back to normal after file scanning used to occur when one or more problem video files caused the file scanner to go into infinite loops.
Status: Problem fixed. Numerous improvements have been made to the file scanner in TwonkyServer 5.1 and 6.0 that greatly improve this situation. When running TwonkyServer 6.x corrupt media files are now blacklisted and removed from the navigation tree so they no longer cause high CPU usage or other problems. Users running older versions of TwonkyMedia server 5.x add-in will have to remove these files manually (http://www.mediasmartserver.net/2010/03 ... 0-patch-2/) or upgrade to the newest version of TwonkyServer, they will find this problem goes away. In case you’re wondering, the newest version of the TwonkyServer Add-on is 5.1.6. This version is being made available to HP this week. The newest version of the non add-on version of TwonkyServer is 6.0.1 – with 6.0.2 only weeks away.
Cause 3: Some users who have completely removed the TwonkyMedia server add-in are still reporting problems with high CPU usage. Some of these users have traced this problem to the HP Video Convertor app.
Status: Problem not related to TwonkyServer. Since we did not create the "HP Video Convertor" app, it is impossible for us to fix this problem. Although the error message says "RPC server is not available." RPC stands for Remote Procedure Call and the RPC server is part of the operating system, and not related in any way to TwonkyServer.
Of course there are other apps that consume high amounts of CPU as well (anti-virus software).
- Rick
There are several different causes of high CPU usage on MediaSmart Servers.
Cause 1: The process of scanning an entire disk for media files, extracting all of the metadata, creating a media database and creating the full navigation tree is a CPU intensive process.
Status: Although we are continually optimizing the scanning process, this is not a bug -- it is expected behavior and CPU usage drops back to normal after the scanning process is complete.
Cause 2: Problems with high CPU usage that doesn’t drop back to normal after file scanning used to occur when one or more problem video files caused the file scanner to go into infinite loops.
Status: Problem fixed. Numerous improvements have been made to the file scanner in TwonkyServer 5.1 and 6.0 that greatly improve this situation. When running TwonkyServer 6.x corrupt media files are now blacklisted and removed from the navigation tree so they no longer cause high CPU usage or other problems. Users running older versions of TwonkyMedia server 5.x add-in will have to remove these files manually (http://www.mediasmartserver.net/2010/03 ... 0-patch-2/) or upgrade to the newest version of TwonkyServer, they will find this problem goes away. In case you’re wondering, the newest version of the TwonkyServer Add-on is 5.1.6. This version is being made available to HP this week. The newest version of the non add-on version of TwonkyServer is 6.0.1 – with 6.0.2 only weeks away.
Cause 3: Some users who have completely removed the TwonkyMedia server add-in are still reporting problems with high CPU usage. Some of these users have traced this problem to the HP Video Convertor app.
Status: Problem not related to TwonkyServer. Since we did not create the "HP Video Convertor" app, it is impossible for us to fix this problem. Although the error message says "RPC server is not available." RPC stands for Remote Procedure Call and the RPC server is part of the operating system, and not related in any way to TwonkyServer.
Of course there are other apps that consume high amounts of CPU as well (anti-virus software).
- Rick