[kwlug-disc] High Availability

[Jonathan Poole]

From what I remember with heartbeat setups (a long long time ago) it was always a manual failback as to control split brain possibilities. 

Sent from my iPhone

> On Feb 20, 2014, at 3:17 PM, Digimer <lists at alteeve.ca> wrote:
> 
> Ok, so I asked on IRC for you. The person I was thinking of is only familiar with heartbeat v3. He thinks though that older heartbeat doesn't have a "fail-back" mode, it only moves in response to a node failure/withdraw.
> 
> Of course, neither of us are sure on this.
> 
> digimer
> 
>> On 20/02/14 12:02 PM, Digimer wrote:
>> I'm afraid that I last used heartbeat in 2007 or 2008. It's long
>> deprecated and the use base is shrinking fast.
>> 
>> I would suggest you jump on freenode.net, join #linux-ha and ask for
>> help there. Also, you could try #drbd as LinBit, the company behind
>> DRBD, maintains the heartbeat code base. There is one user there I know
>> who is still familiar with heartbeat who might be able to help.
>> 
>> In the meantime, I _strongly_ recommend starting the process of
>> migrating the client to corosync + pacemaker. That's the new stack that
>> everything is moving towards (even Red Hat is going there in RHEL 7 and
>> dropping their own cman + rgmanager).
>> 
>> digimer
>> 
>>> On 20/02/14 11:15 AM, Joe Wennechuk wrote:
>>> Ha resources on the slave is ..
>>> OSCAR-SLAVE 10.240.7.190 tomcat6 smartlabs inadyn
>>> MailTo::support at prylynx.com
>>> 
>>> and on the master is ...
>>> OSCAR-MASTER 10.240.7.190 tomcat6 smartlabs inadyn
>>> MailTo::support at prylynx.com
>>> 
>>> 
>>> ----------------------------------------
>>>> From: youcanreachmehere at hotmail.com
>>>> To: kwlug-disc at kwlug.org
>>>> Subject: RE: [kwlug-disc] High Availability
>>>> Date: Thu, 20 Feb 2014 11:11:57 -0500
>>>> 
>>>> I have just acquired an already set up customer. It appears that it
>>>> is using heartbeat.
>>>> 
>>>> haresources on both machines is ....
>>>> OSCAR-MASTER 10.240.7.190 tomcat6 smartlabs inadyn
>>>> MailTo::support at prylynx.com
>>>> 
>>>> and the ha.cf is ....
>>>> logfile /var/log/ha-log
>>>> logfacility local0
>>>> keepalive 2
>>>> udpport 694
>>>> bcast eth0 # Linux
>>>> auto_failback off
>>>> node OSCAR-MASTER
>>>> node OSCAR-SLAVE
>>>> 
>>>> OSCAR-MASTER IP is 10.240.7.191
>>>> OSCAR-SLAVE IP is 10.240.7.192
>>>> 
>>>> The slave has the ball because if I ifconfig on the slave I get the
>>>> following that shows the slave is now IT.
>>>> 
>>>> eth0 Link encap:Ethernet HWaddr 10:9a:dd:5b:a3:81
>>>> inet addr:10.240.7.192 Bcast:10.240.7.255 Mask:255.255.255.0
>>>> inet6 addr: fe80::129a:ddff:fe5b:a381/64 Scope:Link
>>>> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
>>>> RX packets:25668625 errors:0 dropped:0 overruns:0 frame:0
>>>> TX packets:24503891 errors:0 dropped:0 overruns:0 carrier:0
>>>> collisions:0 txqueuelen:1000
>>>> RX bytes:865187034 (865.1 MB) TX bytes:1338963431 (1.3 GB)
>>>> Interrupt:21
>>>> 
>>>> eth0:0 Link encap:Ethernet HWaddr 10:9a:dd:5b:a3:81
>>>> inet addr:10.240.7.190 Bcast:10.240.7.255 Mask:255.255.255.0
>>>> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
>>>> Interrupt:21
>>>> 
>>>> 
>>>> 
>>>> ----------------------------------------
>>>>> Date: Thu, 20 Feb 2014 10:50:11 -0500
>>>>> From: lists at alteeve.ca
>>>>> To: kwlug-disc at kwlug.org
>>>>> Subject: Re: [kwlug-disc] High Availability
>>>>> 
>>>>>> On 20/02/14 10:32 AM, Joe Wennechuk wrote:
>>>>>> I have a High Availability cluster, and the slave has taken over.
>>>>>> The master is back up, but failback is not on. Is there any command
>>>>>> to force the failback to the master?
>>>>> 
>>>>> What cluster stack? How is it configured? What is the current reported
>>>>> state?
>>>>> 
>>>>> --
>>>>> Digimer
>>>>> Papers and Projects: https://alteeve.ca/w/
>>>>> What if the cure for cancer is trapped in the mind of a person without
>>>>> access to education?
>>>>> 
>>>>> 
>>>>> _______________________________________________
>>>>> kwlug-disc mailing list
>>>>> kwlug-disc at kwlug.org
>>>>> http://kwlug.org/mailman/listinfo/kwlug-disc_kwlug.org
>>> 
>>> _______________________________________________
>>> kwlug-disc mailing list
>>> kwlug-disc at kwlug.org
>>> http://kwlug.org/mailman/listinfo/kwlug-disc_kwlug.org
> 
> 
> -- 
> Digimer
> Papers and Projects: https://alteeve.ca/w/
> What if the cure for cancer is trapped in the mind of a person without access to education?
> 
> 
> _______________________________________________
> kwlug-disc mailing list
> kwlug-disc at kwlug.org
> http://kwlug.org/mailman/listinfo/kwlug-disc_kwlug.org