Date: Fri, 12 Mar 1999 08:59:59 +0000 (GMT) From: Bob Bridgham <bob@netacc.net> To: freebsd-questions@freebsd.org Subject: MBUFS Message-ID: <Pine.BSF.4.05.9903120843240.11722-100000@net3.netacc.net>
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Question, I just had a server go un-responsive, and when I log'd into it, I tried to ping other local servers, and got an out of buffer cache. So I then tried killing the mail daemon on that server (200 procs total down to 70) and I still got nothing. I tried un-plugging the network for a while. I did an netstat -an to see if there were lots of syn connections for a syn attack and that was not the case. I also did a netstat -m to see mem usage and I was using about 1300 mbufs in use, and i have set : options "NMBCLUSTERS=2048" in my kernel. Is there any way to more thoroughly detect someone eating up the server, and is there any way to free up the buffer cache? Maybe reduce a tcp timeout or something like that? Bob Bridgham Systems Administration Manager NetAccess Inc. Phone : (716) 756-5500 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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