Re: connection to backend smtp server is being reset
Roman Gelfand <[email protected]>
| Newsgroups | gmane.linux.keepalived.devel |
|---|---|
| Message-ID | <CAJbW+rkAkYCXQE1pP8y8k+_2K5WiUi_SK5Q=cLnj-YUaGdxCng@mail.gmail.com> |
>Does it work if you 'telnet 192.168.0.249 25' on the real servers themselves? nop. I am getting root@pmx11:~# telnet 192.168.0.249 25 Trying 192.168.0.249... telnet: Unable to connect to remote host: Connection refused >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. Yes, this is not a problem as I didn't start the other real server. On Fri, Nov 22, 2013 at 12:45 AM, Todd Fleisher <[email protected]> wrote: > 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 >>> >>> >>> ------------------------------------------------------------------------------ >>> Shape the Mobile Experience: Free Subscription >>> Software experts and developers: Be at the forefront of tech innovation. >>> Intel(R) Software Adrenaline delivers strategic insight and game-changing >>> conversations that shape the rapidly evolving mobile landscape. 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