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RE: [Linux-cluster] Question about controlling the start of services with RIND



Hello Abraham and All,

 

Thank you for your answer.

 

RIND is event scripting for rgmanager as described here http://sources.redhat.com/cluster/wiki/EventScripting

 

How would the startup sequence under runlevel affect the startup of a clustered service, since this is controlled by rgmanager? I do not see the link.

 

After all, should we not do chkconfig –del <service> before configuring a service as clustered service?

 

Thank you All for your time,

 

Theophanis Kontogiannis

 

 

From: linux-cluster-bounces redhat com [mailto:linux-cluster-bounces redhat com] On Behalf Of Abraham Alawi
Sent: Thursday, April 30, 2009 4:09 AM
To: linux clustering
Subject: Re: [Linux-cluster] Question about controlling the start of services with RIND

 

I don't know what RIND is but is there any reason for not changing the sequence of startup services in the runlevel? (i.e. S30gfs, S40httpd)

 

On 29/04/2009, at 3:49 AM, Theophanis Kontogiannis wrote:



Hello All,

 

From you experience (cause my experience on the issue is none) could I use RIND for the following?

 

I have DRBD à CLVMD à GFS2 (that eventually gets mounted) and it is configured as a parent – child hierarchy service (with that sequence) on a two nodes cluster (RHEL5.3).

 

Each node starts the service for itself.

 

Services like Apache, that have all the files under the file system to be mounted, also try to start at the same time.

 

They do not find their files (since the service filesystem takes some time to start) and fail.

 

Could I use RIND somehow to make the rest of the clustered services to start only if the filesystem service has started?

 

Thank you All for your time,

 

Theophanis Kontogiannis

 

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''''''''''''''''''''''''''''''''''''''''''''''''''''''
Abraham Alawi

Unix/Linux Systems Administrator
Science IT
University of Auckland
e: a alawi auckland ac nz
p: +64-9-373 7599, ext#: 87572

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