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Re: [lvs-users] Connection Synchronisation for HA

To: "LinuxVirtualServer.org users mailing list." <lvs-users@xxxxxxxxxxxxxxxxxxxxxx>
Subject: Re: [lvs-users] Connection Synchronisation for HA
From: "M.Rajender" <rajender@xxxxxxxxxxx>
Date: Tue, 09 Dec 2014 18:03:54 +0530
Thanks for the information.

What you mean to say is that, we can synchronise the connections between 
*virtual/firewall* servers only and not between *application* servers. 
i.e, servers which acts as intermediate between two machines (client & 
internet) and which just forwards the request from one to another server.

Please correct me if i am wrong.


On 12/09/2014 03:31 AM, Jonathan Petersson wrote:
> I presume you're looking for something like this:
> http://backreference.org/2013/04/03/firewall-ha-with-conntrackd-and-keepalived/
>
> Although they're using keepalived in this example but you still want to get
> conntrackd going
>
> On Mon, Dec 8, 2014 at 11:09 AM, M.Rajender <rajender@xxxxxxxxxxx> wrote:
>
>> Hello All,
>>
>> I have two Linux servers configured for High availability using
>> Heartbeat and everything is working fine.
>> But few of our applications use RPC calls for communication, which is a
>> state-ful connection. So when the fail-over happens we need to
>> re-connect the application since the connection gets terminated.
>>
>> While checking the internet, I found that *ipvsadm* does Connection
>> Synchronisation between the servers.
>> This feature is wonderful; When a stand-by server becomes the active, it
>> will have all the information about the currently active connections and
>> will be able to continue to process the requests.
>>
>> My goal is not achieving Linux Virtual Server and want to achieve HA for
>> state-full connection.
>> Please let me know whether the above will be possible using the LVS and
>> if possible, then can you provide me some tutorial (or) configuration
>> steps to achieve the same.
>>
>> Thanks in advance.
>>
>> --
>> Regards,
>> Rajender.M
>>
>> _______________________________________________
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>> http://www.linuxvirtualserver.org/
>>
>> LinuxVirtualServer.org mailing list - lvs-users@xxxxxxxxxxxxxxxxxxxxxx
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>>
>
>


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