Re: connection to backend smtp server is being reset

And you are testing the VIP from somewhere on the same subnet (not the keepalived nodes themselves) since you are using LVS-DR?

Does it work if you 'telnet 192.168.0.249 25' on the real servers themselves?

It looks like one of your real servers failed it's TCP_CHECK and was removed. As long as the other real server shows up in 'ipvsadm -L -n' it should be able to service requests for the VIP.

Now that you have IPVS support, you should try and tcpdump all along the path and figure out where things are getting hung up.

-T

On Nov 21, 2013, at 7:36 PM, Roman Gelfand wrote:

> I fixed can't initalize ipvs.  Still no go.
> 
> Nov 21 22:21:37 lb1 Keepalived[2608]: Starting Keepalived v1.2.9 (11/20,2013)
> Nov 21 22:21:37 lb1 Keepalived[2609]: Starting Healthcheck child
> process, pid=2610
> Nov 21 22:21:37 lb1 Keepalived[2609]: Starting VRRP child process, pid=2611
> Nov 21 22:21:37 lb1 Keepalived_vrrp[2611]: Registering Kernel netlink reflector
> Nov 21 22:21:37 lb1 Keepalived_vrrp[2611]: Registering Kernel netlink
> command channel
> Nov 21 22:21:37 lb1 Keepalived_vrrp[2611]: Registering gratuitous ARP
> shared channel
> Nov 21 22:21:37 lb1 Keepalived_vrrp[2611]: Initializing ipvs 2.6
> Nov 21 22:21:37 lb1 Keepalived_vrrp[2611]: Opening file
> '/etc/keepalived/keepalived.conf'.
> Nov 21 22:21:37 lb1 Keepalived_healthcheckers[2610]: Initializing ipvs 2.6
> Nov 21 22:21:37 lb1 Keepalived_healthcheckers[2610]: Registering
> Kernel netlink reflector
> Nov 21 22:21:37 lb1 Keepalived_healthcheckers[2610]: Registering
> Kernel netlink command channel
> Nov 21 22:21:37 lb1 Keepalived_healthcheckers[2610]: Opening file
> '/etc/keepalived/keepalived.conf'.
> Nov 21 22:21:37 lb1 Keepalived_vrrp[2611]: Configuration is using : 61690 Bytes
> Nov 21 22:21:37 lb1 Keepalived_vrrp[2611]: Using LinkWatch kernel
> netlink reflector...
> Nov 21 22:21:37 lb1 Keepalived_healthcheckers[2610]: Configuration is
> using : 12661 Bytes
> Nov 21 22:21:37 lb1 Keepalived_healthcheckers[2610]: Using LinkWatch
> kernel netlink reflector...
> Nov 21 22:21:37 lb1 Keepalived_healthcheckers[2610]: Activating
> healthchecker for service [192.168.0.245]:25
> Nov 21 22:21:37 lb1 Keepalived_healthcheckers[2610]: Activating
> healthchecker for service [192.168.0.244]:25
> Nov 21 22:21:37 lb1 kernel: [    5.661834] IPVS: [rr] scheduler registered.
> Nov 21 22:21:37 lb1 mpt-statusd: detected non-optimal RAID status
> Nov 21 22:21:38 lb1 Keepalived_vrrp[2611]: VRRP_Instance(VI_1)
> Transition to MASTER STATE
> Nov 21 22:21:38 lb1 Keepalived_healthcheckers[2610]: TCP connection to
> [192.168.0.245]:25 failed !!!
> Nov 21 22:21:38 lb1 Keepalived_healthcheckers[2610]: Removing service
> [192.168.0.245]:25 from VS [192.168.0.249]:25
> Nov 21 22:21:39 lb1 Keepalived_vrrp[2611]: VRRP_Instance(VI_1)
> Entering MASTER STATE
> 
> On Thu, Nov 21, 2013 at 8:46 PM, Todd Fleisher <[email protected]> wrote:
>> On Nov 21, 2013, at 4:22 PM, Roman Gelfand wrote:
>> 
>>> There is, also, this in the log IPVS: Can't initialize ipvs: Protocol
>>> not available
>> 
>> This is your problem. You don't have IPVS support in your kernel. Fix that and it should work.
>> 
>>> From the google:
>> https://www.linuxquestions.org/questions/red-hat-31/can't-initialize-ipvs-protocol-not-available-351241/
>> 
>> -T
>> 
>> 
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