Server maxing out CPU

[milleph]

New install on Windows 7. 5,000 songs, no users, 4 cores at max. How do I figure out what's going on?

[GJ51]

Video?

Open task manager and see what exactly is using the CPU.

If you only have music on your site it shouldn't demand much cpu - video transcoding is usually the problem with maxing out the cpu.

Has the initial library scan completed?

[milleph]

I uninstalled everything (Program Files/subsonic and C:/subsonic), did a clean install of beta 5.0, started the server and it went straight to 100.0% cpu usage. No media, nothing. (process is subsonic-service.exe *32)

[GJ51]

It's been a while since I've used the standard Windows install for Subsonic, but I do have it running on Windows Server on Tomcat using the war version.

I've installed many versions of the Windows install previously and it should behave the same as the war version on Windows.

If you don't have any media folders defined, then Subsonic should not be using any CPU load. You can stop the service from the tray icon to see if it kills the CPU load and you can also do it via the Services MMC. Either way you should get the same result. If restarting the service again maxes out the CPU then there is something strange going on. If I ran into this on one of my systems, I would Uninstall Subsonic through Control Panel, delete C:\Subsonic, then uninstall ALL instances of any Java entries through Control Panel as well.

Reboot the system and then do a clean install of the latest Java version for your system, then do a clean install of Subsonic.

Yours is the first report of this I have seen here in the forums and seems to be a unique issue. I upgraded yesterday from 4.9 to the 5.0 beta 1 without running into any problems. As I mentioned earlier, you normally only stress the CPU under heavy transcoding situations, such as transcoding video. If you do a complete clean reinstall and still have the same issue, you should look at the Subsonic log carefully to see if you can identify what Subsonic is doing that is hitting the CPU so hard.

I'll be out of town for a week or so, but any detailed feedback you can provide might identify the problem for anyone else to give you assistance.

Good Luck,

HTH

[milleph]

Yep, tried everything you suggested. Clean install of Java 1.7 and Subsonic 5.0. Attached a screenshot of the resource monitor with subsonic just started afew minutes ago and nothing much else going on.... clean install, no media.

sub_process2.png

And the log file....

[2014-05-25 12:03:03,715] INFO DaoHelper - Checking database schema.
[2014-05-25 12:03:04,177] INFO DaoHelper - Done checking database schema.
[2014-05-25 12:03:04,621] INFO MediaScannerService - Automatic media library scanning scheduled to run every 1 day(s), starting at Mon May 26 03:00:00 EDT 2014
[2014-05-25 12:03:04,680] INFO UPnPService - Starting UPnP service...
[2014-05-25 12:03:04,748] INFO PodcastService - Automatic Podcast update scheduled to run every 24 hour(s), starting at Sun May 25 12:08:04 EDT 2014
[2014-05-25 12:03:05,748] INFO VersionService - Resolved local Subsonic version to: 5.0.beta1
[2014-05-25 12:03:05,965] INFO UPnPService - Enabling UPnP/DLNA media server
[2014-05-25 12:03:05,966] INFO UPnPService - Starting UPnP service - Done!
[2014-05-25 12:03:14,712] INFO NetworkService - Deleted port mapping for port 80
[2014-05-25 12:08:04,753] INFO PodcastService - Starting scheduled Podcast refresh.
[2014-05-25 12:08:04,755] INFO PodcastService - Completed scheduled Podcast refresh.

[milleph]

Is there a verbose logging mode for the server so I can post that to offer more insight?

[GJ51]

What CPU is this?

[milleph]

Yeah, this is an old PC I want to use as a server. Intel Core 2 Quad Q8300. Should be perfectly adequate to serve up MP3 and FLAC files though.

[milleph]

.... and just like that, with nothing having changed, it's perfectly fine at 0% cpu

[GJ51]

That sounds more like it.

A Q8300 should also be able to handle some video without a problem as long as you don't get into multiple HD streams.

I have servers running Q9550S CPU's that work very well - especially when only doing music. Quite snappy.

Glad to hear it sorted itself out.