Date: Thu, 10 Jun 2010 13:13:16 +0200 From: Anders Nordby <anders@FreeBSD.org> To: Rick Macklem <rmacklem@uoguelph.ca> Cc: freebsd-fs@FreeBSD.org Subject: Re: Odd network issues on ZFS based NFS server Message-ID: <20100610111316.GB87243@fupp.net> In-Reply-To: <Pine.GSO.4.63.1006091119410.23896@muncher.cs.uoguelph.ca> References: <20100608083649.GA77452@fupp.net> <Pine.GSO.4.63.1006081946040.8742@muncher.cs.uoguelph.ca> <20100609122517.GA16231@fupp.net> <Pine.GSO.4.63.1006091119410.23896@muncher.cs.uoguelph.ca>
next in thread | previous in thread | raw e-mail | index | archive | help
Hi, On Wed, Jun 09, 2010 at 11:28:52AM -0400, Rick Macklem wrote: > When you tried a different NIC, was a different type (ie. different > chipset that uses a different device driver)? I suggested that not > because I thought the hardware was broken but because I thought it > might be related to the network interface's device driver and switching > to a different device driver would isolate that possibility. Nope. I switched from NIC 1 to 2, and switched server to an identical one. They both use bge NICs, a very common interface. I somehow doubt this is related to the NIC or driver, I have many machines with the same bge NIC (HP NC7782) that does not have any problems like this. > Well, it doesn't seem to be mbuf exhaustion (I don't know what > "out of packet secondary zone" means, I'll have to look at that) and > if it doesn't handle pings it seems really hosed. Have you done a > "vmstat 5" + "ps axlH" (or similar) to try and see what it's doing? > ("top" and "netstat" might also help?) root@unixfile:~# vmstat 5 procs memory page disks faults cpu r b w avm fre flt re pi po fr sr da0 da1 in sy cs us sy id 0 0 0 410M 1781M 279 0 0 0 481 0 0 0 1918 12338 6476 0 2 98 0 0 0 410M 1781M 1 0 0 0 0 0 0 0 497 34 2268 0 1 99 0 0 0 410M 1781M 123 0 0 0 116 0 0 0 455 1787 2071 0 0 99 0 0 0 410M 1781M 0 0 0 0 4 0 0 0 292 38 1459 0 1 99 ^C root@unixfile:~# top -b 5 last pid: 86306; load averages: 0.04, 0.13, 0.07 up 0+22:01:28 13:09:31 46 processes: 1 running, 45 sleeping Mem: 25M Active, 147M Inact, 1021M Wired, 112K Cache, 316M Buf, 1780M Free Swap: 6144M Total, 6144M Free PID USERNAME THR PRI NICE SIZE RES STATE C TIME WCPU COMMAND 786 root 4 44 0 5804K 1276K rpcsvc 1 51:04 0.00% nfsd 839 nagios 1 44 0 10880K 3228K select 0 0:04 0.00% nrpe2 847 root 1 44 0 20852K 8356K select 0 0:04 0.00% perl5.10.1 1076 root 1 44 0 11968K 4188K select 0 0:01 0.00% sendmail 81645 root 1 44 0 10220K 2920K wait 2 0:01 0.00% bash The server doesn't have many connections, 16 in ESTABLISHED state. As you can see from top, the server has 1780 MB free memory. Regards, -- Anders.
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20100610111316.GB87243>