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[Xen-users] Testing high availability

To: "General Linux-HA mailing list" <linux-ha@xxxxxxxxxxxxxxxxxx>, drbd-user@xxxxxxxxxxxxxxxx, xen-users@xxxxxxxxxxxxxxxxxxx

From: "Paras pradhan" <pradhanparas@xxxxxxxxx>

Date: Thu, 2 Oct 2008 16:55:03 -0500

Cc:

Delivery-date: Thu, 02 Oct 2008 14:55:45 -0700

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List-id: Xen user discussion <xen-users.lists.xensource.com>

Hey all:

It seems like my question is related to ha, drbd and xen . Hence posting to all of them at once.

I have two nodes setup with xen 3.0.3, drbd82, heartbeat 2 under centos 5.2. As I was testing this cluster for high availibility, I noticed some issues

1) domA is running under node1. when I manually shutdown node 1, sometimes it is migrated automatically to node2 and sometimes it is restarted in node2. Why is this happening?

2) domA is running under node1. when I pull off the network cable, domA is restarted in node 2 with no problem. But when the node1 comes back, domA is not migrated to node1 and if i do 'xm list' under node1, I see "migrating-domain". This is complicating everything.

My ha.cf file looks:

logfacility local0

udpport 694

keepalive 1

deadtime 5

warntime 3

initdead 10

ucast eth0 10.42.40.198

ucast eth0 10.42.40.26

auto_failback on

watchdog /dev/watchdog

debugfile /var/log/ha-debug

node ha1.domain.local

node ha2.domain.local

Help !

Thanks in advance

Paras.

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