[ClusterLabs] pacemaker remote configuration on ubuntu 14.04

Fri Mar 11 05:36:18 UTC 2016

This one is the right log


> On 10 Mar 2016, at 08:17, Сергей Филатов <filatecs at gmail.com> wrote:
> 
> pcs resource show compute-1
> 
>  Resource: compute-1 (class=ocf provider=pacemaker type=remote)
>  Operations: monitor interval=60s (compute-1-monitor-interval-60s)
> 
> Can’t find _start_0 template in pacemaker logs
> I don’t have ipv6 address for remote node, but I guess it should be listening on both
> 
> attached pacemaker.log for cluster node
> <pacemaker.log.tar.gz>
> 
> 
>> On 09 Mar 2016, at 10:23, Ken Gaillot <kgaillot at redhat.com <mailto:kgaillot at redhat.com>> wrote:
>> 
>> On 03/08/2016 11:38 PM, Сергей Филатов wrote:
>>> ssh -p 3121 compute-1
>>> ssh_exchange_identification: read: Connection reset by peer
>>> 
>>> That’s what I get in /var/log/pacemaker.log after restarting pacemaker_remote:
>>> Mar 09 05:30:27 [28031] compute-1.domain.com <http://compute-1.domain.com/>       lrmd:     info: crm_signal_dispatch:  Invoking handler for signal 15: Terminated
>>> Mar 09 05:30:27 [28031] compute-1.domain.com <http://compute-1.domain.com/>       lrmd:     info: lrmd_shutdown:        Terminating with  0 clients
>>> Mar 09 05:30:27 [28031] compute-1.domain.com <http://compute-1.domain.com/>       lrmd:     info: qb_ipcs_us_withdraw:  withdrawing server sockets
>>> Mar 09 05:30:27 [28031] compute-1.domain.com <http://compute-1.domain.com/>       lrmd:     info: crm_xml_cleanup:      Cleaning up memory from libxml2
>>> Mar 09 05:30:27 [28193] compute-1.domain.com <http://compute-1.domain.com/>       lrmd:     info: crm_log_init:         Changed active directory to /var/lib/heartbeat/cores/root
>>> Mar 09 05:30:27 [28193] compute-1.domain.com <http://compute-1.domain.com/>       lrmd:     info: qb_ipcs_us_publish:   server name: lrmd
>>> Mar 09 05:30:27 [28193] compute-1.domain.com <http://compute-1.domain.com/>       lrmd:   notice: lrmd_init_remote_tls_server:  Starting a tls listener on port 3121.
>>> Mar 09 05:30:28 [28193] compute-1.domain.com <http://compute-1.domain.com/>       lrmd:   notice: bind_and_listen:      Listening on address ::
>>> Mar 09 05:30:28 [28193] compute-1.domain.com <http://compute-1.domain.com/>       lrmd:     info: qb_ipcs_us_publish:   server name: cib_ro
>>> Mar 09 05:30:28 [28193] compute-1.domain.com <http://compute-1.domain.com/>       lrmd:     info: qb_ipcs_us_publish:   server name: cib_rw
>>> Mar 09 05:30:28 [28193] compute-1.domain.com <http://compute-1.domain.com/>       lrmd:     info: qb_ipcs_us_publish:   server name: cib_shm
>>> Mar 09 05:30:28 [28193] compute-1.domain.com <http://compute-1.domain.com/>       lrmd:     info: qb_ipcs_us_publish:   server name: attrd
>>> Mar 09 05:30:28 [28193] compute-1.domain.com <http://compute-1.domain.com/>       lrmd:     info: qb_ipcs_us_publish:   server name: stonith-ng
>>> Mar 09 05:30:28 [28193] compute-1.domain.com <http://compute-1.domain.com/>       lrmd:     info: qb_ipcs_us_publish:   server name: crmd
>>> Mar 09 05:30:28 [28193] compute-1.domain.com <http://compute-1.domain.com/>       lrmd:     info: main:         Starting
>> 
>> It looks like the cluster is not even trying to connect to the remote
>> node. pacemaker_remote here is binding only to IPv6, so the cluster will
>> need to contact it on that address.
>> 
>> What is your ocf:pacemaker:remote resource configuration?
>> 
>> Check your cluster node logs for the start action -- if your resource is
>> named R, the start action will be R_start_0. There will be two nodes of
>> interest: the node assigned the remote node resource, and the DC.
>> 
>>> I got only pacemaker-remote resource-agents pcs installed, so no /etc/default/pacemaker file on remote node
>>> selinux is disabled and I specifically opened firewall on 2224, 3121 and 21064 tcp and 5405 udp
>>> 
>>>> On 08 Mar 2016, at 08:51, Ken Gaillot <kgaillot at redhat.com <mailto:kgaillot at redhat.com>> wrote:
>>>> 
>>>> On 03/07/2016 09:10 PM, Сергей Филатов wrote:
>>>>> Thanks for an answer. Turned out the problem was not in ipv6.
>>>>> Remote node is listening on 3121 port and it’s name is resolving fine.
>>>>> Got authkey file at /etc/pacemaker on both remote and cluster nodes.
>>>>> What can I check in addition? Is there any walkthrough for ubuntu?
>>>> 
>>>> Nothing specific to ubuntu, but there's not much distro-specific to it.
>>>> 
>>>> If you "ssh -p 3121" to the remote node from a cluster node, what do you
>>>> get?
>>>> 
>>>> pacemaker_remote will use the usual log settings for pacemaker (probably
>>>> /var/log/pacemaker.log, probably configured in /etc/default/pacemaker on
>>>> ubuntu). You should see "New remote connection" in the remote node's log
>>>> when the cluster tries to connect, and "LRMD client connection
>>>> established" if it's successful.
>>>> 
>>>> As always, check for firewall and SELinux issues.
>>>> 
>>>>> 
>>>>>> On 07 Mar 2016, at 09:40, Ken Gaillot <kgaillot at redhat.com <mailto:kgaillot at redhat.com>> wrote:
>>>>>> 
>>>>>> On 03/06/2016 07:43 PM, Сергей Филатов wrote:
>>>>>>> Hi,
>>>>>>> I’m trying to set up pacemaker_remote resource on ubuntu 14.04
>>>>>>> I followed "remote node walkthrough” guide (http://clusterlabs.org/doc/en-US/Pacemaker/1.1/html-single/Pacemaker_Remote/#idm140473081667280 <http://clusterlabs.org/doc/en-US/Pacemaker/1.1/html-single/Pacemaker_Remote/#idm140473081667280> <http://clusterlabs.org/doc/en-US/Pacemaker/1.1/html-single/Pacemaker_Remote/#idm140473081667280 <http://clusterlabs.org/doc/en-US/Pacemaker/1.1/html-single/Pacemaker_Remote/#idm140473081667280>>)
>>>>>>> After creating ocf:pacemaker:remote resource on cluster node, remote node doesn’t show up as online.
>>>>>>> I guess I need to configure remote agent to listen on ipv4, where can I configure it?
>>>>>>> Or is there any other steps to set up remote node besides the ones mentioned in guide?
>>>>>>> tcp6       0      0 :::3121                 :::*                    LISTEN      21620/pacemaker_rem off (0.00/0/0)
>>>>>>> 
>>>>>>> pacemaker and pacemaker_remote are 1.12 version
>>>>>> 
>>>>>> 
>>>>>> pacemaker_remote will try to bind to IPv6 addresses first, and only if
>>>>>> that fails, will it bind to IPv4. There is no way to configure this
>>>>>> behavior currently, though it obviously would be nice to have.
>>>>>> 
>>>>>> The only workarounds I can think of are to make IPv6 connections work
>>>>>> between the cluster and the remote node, or disable IPv6 on the remote
>>>>>> node. Using IPv6, there could be an issue if your name resolution
>>>>>> returns both IPv4 and IPv6 addresses for the remote host; you could
>>>>>> potentially work around that by adding an IPv6-only name for it, and
>>>>>> using that as the server option to the remote resource.
> 

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