Not all interfaces come up

[Adrian van Vuuren]

Hmmm, wouldn't be the first problem we've had with the card. It didn't handle fragmentation well and (after much investigation) found we needed to disable gro with ethtool. 
----- Original Message -----

From: "Carlos Infantes" <infantes_car at gva.es> 
To: piranha-list at redhat.com 
Cc: adrianvv at synaq.com 
Sent: Wednesday, 21 December, 2011 1:24:08 PM 
Subject: Re: Not all interfaces come up 

We had the same issue here, and after a lot of work we think that the 
problem is with the LAN driver. Pulse try to get up the interfaces more 
fast than the driver can handle and some IPs dont get up. 

Our "solution" was install RedHat but over XenServer, the hypervisor 
handles the interfaces without problems. 

On 21/12/11 12:00, Adrian van Vuuren wrote: 
> 
> Hi, 
> 
> We have a direct lvs setup with 15 or so virtual balancers over 5 IPs with a master and backup pulse (heartbeat). 
> ipvsadm-1.25-9.el6.x86_64 
> piranha-0.8.5-7.el6.x86_64 
> 
> What we're finding happens is that one or two (it varies) of the alias interfaces don't come up, seemingly randomly. This happens on a start, a restart, relocating to the backup pulse box, relocating back to the master pulse, etc. Following which the alias interfaces that don't come up need to be brought up manually before those balancers work. 
> 
> Has anyone seen something like this before? 
> Logs don't show any failures or warnings, just making sockets available and creating monitors. 
> 
> Our balancers all follow a similar configuration template for example: 
> 
> virtual balancer-http { 
> active = 1 
> address = XX:XX:XX:01 eth0:5 
> vip_nmask = 255.255.255.192 
> port = 80 
> use_regex = 0 
> load_monitor = none 
> scheduler = wlc 
> protocol = tcp 
> timeout = 120 
> reentry = 30 
> quiesce_server = 0 
> server cluster-box1 { 
> address = XX:XX:XX:02 
> active = 1 
> weight = 1 
> } 
> server cluster-box2 { 
> address = XX:XX:XX:03 
> active = 1 
> weight = 1 
> } 
> server cluster-box3 { 
> address = XX:XX:XX:04 
> active = 0 
> weight = 1 
> } 
> } 
> 
> 
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> 
> 


-- 
Carlos Infantes Oanes 
Unitat d'Actuació en Salut Pública 
Direcció General de Salut Pública 
Conselleria de Sanitat - GVA 
Tel.: 961 925 850

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