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Re: LVS/Apache cluster freezes from time to time

To: "LinuxVirtualServer.org users mailing list." <lvs-users@xxxxxxxxxxxxxxxxxxxxxx>
Subject: Re: LVS/Apache cluster freezes from time to time
From: Jan Abraham <jan_abraham@xxxxxxx>
Date: Fri, 31 Oct 2003 16:41:52 +0100
By the way, I've done one thing different to the LVS installation
guide... I don't believe that it has something to do with the
phenomenon, but you know... noone knows ;)

LVS guides suggest to bind the VIPs on the realservers to loopback
device (resp. aliases of lo). I've bound the VIPs to aliases of eth0.
Up to my understanding, the interface is not relevant since long as
rp_filter = 0 for the incoming interface (eth1 here).



ifconfig output
===============

eth0      Link encap:Ethernet  HWaddr xx:xx:xx:xx:xx:xx
          inet addr:x.x.x.14  Bcast:x.x.x.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:164118 errors:0 dropped:0 overruns:0 frame:0
          TX packets:105733425 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:100
          RX bytes:7657460 (7.3 MiB)  TX bytes:3136510553 (2.9 GiB)
          Interrupt:11 Base address:0xc400 Memory:e6041000-e6041038
 
eth0:30   Link encap:Ethernet  HWaddr xx:xx:xx:xx:xx:xx
          inet addr:x.x.x.30  Bcast:x.255.255.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          Interrupt:11 Base address:0xc400 Memory:e6041000-e6041038
 
eth0:31   Link encap:Ethernet  HWaddr xx:xx:xx:xx:xx:xx
          inet addr:x.x.x.31  Bcast:x.255.255.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          Interrupt:11 Base address:0xc400 Memory:e6041000-e6041038
 
eth1      Link encap:Ethernet  HWaddr yy:yy:yy:yy:yy:yy
          inet addr:10.10.10.14  Bcast:10.10.10.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:142810660 errors:0 dropped:0 overruns:0 frame:0
          TX packets:49450085 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:100
          RX bytes:3966344231 (3.6 GiB)  TX bytes:1095015779 (1.0 GiB)
          Interrupt:10 Base address:0xc800 Memory:e6000000-e6020000
 
lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:29 errors:0 dropped:0 overruns:0 frame:0
          TX packets:29 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:9246 (9.0 KiB)  TX bytes:9246 (9.0 KiB)


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