[Linux-ha-dev] [Patch]long delay for DC node election

[Dejan Muhamedagic]

Hi,

On Thu, Oct 25, 2007 at 10:06:11AM +0900, DAIKI MATSUDA wrote:
> Dear Heartbeat Developer All.
> 
> I researched the long delay for DC node election. In bugzilla #1138,
> its problem is fixed and I confirmed it on 3 nodes cluster, i.e. DC
> node is killed and 2 nodes are alive. But in other situation that is
> at the first the cluster consists of 2 nodes and DC node is killed, it
> takes long delay to elect new DC node. Because by fixing for bugzilla
> #1138, it encountered the other timeout (CCM_TMOUT_GET_IFF()) in
> ccm_state_sent_memlistreq(). When alive node is 1, last one waits for
> long because there is no nodes to send message. So, I made the path
> not to wait at the CCM_TYPE_REQ_MEMLIST message type on
> ccm_state_sent_memlistreq() and attach the patch. Could you check it?

It is good. Just applied it to the development branch.

Sorry for the belated respond and many thanks for the patch.

Dejan

> Best Regards
> MATSUDA, Daiki

> --- heartbeat-2.1.2/memebership/ccm/ccm_statemachine.c.orig	2007-10-10 11:04:31.000000000 +0900
> +++ heartbeat-2.1.2/memebership/ccm/ccm_statemachine.c	2007-10-10 11:05:34.000000000 +0900
> @@ -2110,6 +2110,12 @@ switchstatement:
>  			/* if this is my own message just forget it */
>  			if(strncmp(orig, llm_get_mynodename(&info->llm),
>  				   NODEIDSIZE) == 0){
> +				if(llm_get_live_nodecount(&info->llm) == 1){
> +					ccm_log(LOG_INFO, "%s: directly call"
> +						"ccm_compute_and_send_final_memlist()",
> +						__FUNCTION__);
> +					ccm_compute_and_send_final_memlist(hb, info);
> +				}
>  				break;
>  			}
>  

> _______________________________________________________
> Linux-HA-Dev: Linux-HA-Dev at lists.linux-ha.org
> http://lists.linux-ha.org/mailman/listinfo/linux-ha-dev
> Home Page: http://linux-ha.org/