20 messages in com.mysql.lists.clusterRe: SQL Node Setup Question
FromSent OnAttachments
Burhan Khalid28 Apr 2008 03:45 
ewen fortune28 Apr 2008 04:12 
Burhan Khalid28 Apr 2008 04:59 
ewen fortune28 Apr 2008 05:23 
Burhan Khalid28 Apr 2008 15:07 
ewen fortune29 Apr 2008 00:14 
ewen fortune29 Apr 2008 05:32 
Geert Vanderkelen29 Apr 2008 06:06 
Burhan Khalid29 Apr 2008 06:17 
ewen fortune29 Apr 2008 06:50 
Geert Vanderkelen29 Apr 2008 06:56 
Geert Vanderkelen29 Apr 2008 07:10 
Burhan Khalid29 Apr 2008 07:49 
ewen fortune29 Apr 2008 08:00 
Geert Vanderkelen29 Apr 2008 08:53 
Burhan Khalid30 Apr 2008 01:19 
Jon Stephens30 Apr 2008 03:13 
Burhan Khalid30 Apr 2008 05:13 
ewen fortune30 Apr 2008 05:16 
Burhan Khalid30 Apr 2008 05:52 
Subject:Re: SQL Node Setup Question
From:Geert Vanderkelen (gee@mysql.com)
Date:04/29/2008 08:53:45 AM
List:com.mysql.lists.cluster

On Apr 29, 2008, at 17:00 , ewen fortune wrote:

Hi Burhan, Yes, the data nodes continue to function as a cluster even without the management node running. Indeed the management node is only really needed to start the cluster.

This is true, but know that the management node is used (mostly) as Arbitrator too.

Also, when ndb_mgmd goes down you stop logging cluster activity and you can't monitor it anymore. So, Cluster without ndb_mgmd is possible, but you better keep it up. Usually, there are 2 ndb_mgmd per Cluster (but not more!).. HA you know.

Cheers,

Geert

-- Geert Vanderkelen, Senior Support Engineer MySQL GmbH, Germany, www.mysql.com