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Hi list,
I've been using IVPS 1.0.x for years now and I never had any problem.
I recently built a new cluster, running Fedora Core 2 and IPVS 1.2.0.
Since then, I'm having big problems. Eventhough the servers are not
loaded, the director periodically crashed.
No more network, no more interactive console access ... the only thing
left is Alt-SysRq ! No single char logged (to disk or to the console)
that could help :(
Alt-SysRq-p has recently shown that something related to ipvs tcp
defense was found in the stack trace. Unfornunately, I wasn't able to
read enough infos as they scroll way too fast.
Right now, I don't know what I can try and test ? I've changed the NIC
driver, I've stopped the backup director, I've just stopped the sync
daemon ... and still hoping it won't crash again. If it crashes again,
I'll run without ipvs for a few days to see if it's really the cause.
Has anybody already faced such a situation ? Any help appreciated.
Kind regards.
[root@frioul root]# uname -a
Linux frioul 2.6.5-1.358smp #1 SMP Sat May 8 09:25:36 EDT 2004 i686 i686
i386 GNU/Linux
[root@hawai root]# ipvsadm -ln
IP Virtual Server version 1.2.0 (size=4096)
Prot LocalAddress:Port Scheduler Flags
-> RemoteAddress:Port Forward Weight ActiveConn InActConn
TCP a.b.c.78:80 wrr
-> a.b.c.104:80 Local 981 0 0
TCP a.b.c.79:80 wrr
-> a.b.c.104:80 Local 981 0 0
TCP a.b.c.74:80 wrr
-> a.b.c.104:80 Local 1000 0 0
TCP a.b.c.78:443 wrr
-> a.b.c.104:443 Local 1000 0 0
TCP a.b.c.79:443 wrr
-> a.b.c.104:443 Local 1000 0 0
TCP a.b.c.74:443 wrr
-> a.b.c.104:443 Local 1000 0 70
Setup : 2 servers with one NIC each, both acting as director and
realserver, forwarding method is Direct Routing, MAC pb solved using
net.ipv4.conf.{lo,all}.arp_{ignore,announce}
The above ipvsadm output shows the current situation with only one
active server as I investigate on the other one.
--
Sébastien BONNET -- Ingénieur système
Tel: 04.42.25.15.40 GSM: 06.64.44.58.98
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