OK - got tired of messing with this. Even with 768MB installed, when I would try to add the 14th netflow device it would freak out. The web page would say something like "Unable to create device" and the log would say malloc error. I'd go back to configure the netflow plugin and it would say I must activate it first - although netstat -an showed all configured netflow devices listening and memory util was high enough that I'm sure the plugin WAS active. After many many failed restarts I finally had to edit the prefsCache using the GUI and remove a couple ntop devices so the [EMAIL PROTECTED] thing would start! The weird thing is it looks like it would only grab bunches of memory on initialization. Once running 13 devices were using around 400-450MB of RAM - I still had 250+MB available
I ended up having to create (2) instances. The first one has (4) netflow devices and is using about 305MB and the other has (8) and is using 320MB. Both instances seem to be running OK so I guess we'll see... I have a feeling once I start sending flows I'm gonna run out of memory pretty quick. Gary -----Original Message----- From: Gary Gatten Sent: Monday, October 08, 2007 1:20 PM To: '[email protected]' Subject: Interfaces - Memory Allocation / requirements - netflow memory Would it be possible to change the memory required / allocated for interfaces - or other nTop structures? I'm using netflow and for reasons I won't go into in this thread I have about 16 netflow devices (interfaces) configured - at least that's what I'm trying to do. I started out with 384MB of RAM and now have 640MB. When I activate the netflow plugin it starts allocating memory until it runs out and blows up with malloc erros. Sometimes nTop dies and other times it seems OK, but the netflow plugin never works right. Why is this using so much RAM? Even with each interface using 16MB of RAM that's only 256MB total plus whatever the other structures need. The machine I'm using is an old PIII-750 that uses PC100 DIMMS. Unfortunately it only has (3) banks and I only have 256MB DIMMS laying around. I'll load them all and hopefully 768MB will be enough - just seems like it should need this much memory Gary BTW: This is 3.2.something on FreeBSD 6.1.something. =========================================================================== "This email is intended to be reviewed by only the intended recipient and may contain information that is privileged and/or confidential. If you are not the intended recipient, you are hereby notified that any review, use, dissemination, disclosure or copying of this email and its attachments, if any, is strictly prohibited. If you have received this email in error, please immediately notify the sender by return email and delete this email from your system." _______________________________________________ Ntop mailing list [email protected] http://listgateway.unipi.it/mailman/listinfo/ntop
