Problem Server Disabled Due to Excessive Handles

[Laike]

I was recently contacted by my server host about our servers being disabled due to excessive handles. He sent us this picture
http://i.imgur.com/Gt9OG.png

Our server is the one with over 9000 handles (I wish this was a joke). This is frankly the first time I've ever heard about these Handles so I'm pretty clueless on what is going on. I'm trying to track down the problem so I can fix it and get my server back up ASAP. Can anyone give me a hand?

What has changed in the past two days:
Since we have an extremely small 2GB RAM server for only 5 people (only 2 or 3 on at a time). We are currently hosted with plugpayplay.com, but I assume they are running a Windows based server. We are running the FTB Beta A server pack at the moment with ExtraBiomesXL disabled.
We have a few quarries and world anchors set up (2 quarries, 3 anchors, specifically). Also, in the past two days we've been experimenting with Mystcraft Ages on a small scale. Instabilities were disabled and unused mystcraft books and ages (via the FTP) were purged after the ages were created.
I'm not sure if this may cause our huge problems with the amount of handles, but it may be a clue.
Thanks for the help.

 

[TheLoneWolfling]

Handles, in this sense, are references to resources such as files. Assuming this is a Windows server from the screenshot, ask the server host to run Process Explorer (free download from Windows SysInternals) and open the handle view for the server Java process. They may have to enable unnamed handles (under view -> Show Unnamed Handles and Mappings). This might help track down the bug.

Alternatively, if that is not an option, run the server locally on the same world and see if there's the same problem. If there is, post (or PM) the world download.

That being said, the Windows handle limit is >16 million. As such I don't see why this is actually a problem.

 

[Laike]

I will try to get this done with the server host and report back, thanks for your help