Custom HA agent - Red Hat Linux Cluster Post: 302455258

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Operating Systems Linux Red Hat Custom HA agent - Red Hat Linux Cluster Post 302455258 by pshaikh on Tuesday 21st of September 2010 07:30:54 AM

09-21-2010

Registered User

Custom HA agent - Red Hat Linux Cluster

Hi experts, I have some custom application which I need to make Highly Available using red hat cluster service. How do I do it? i know in /usr/share/cluster i shall find HA agents for well known services like Apache or Sybase but I want to write HA agent for my own. I tried looking up on internet, and red hat documentation but couldn't find any systematic resource for the same. In system-config-cluster; I see a resource named script. Do I have to use this script resource for my custom application? If yes, I already did that. I wrote a script using apache.sh (found in /usr/share/cluster) and provided path of that script in resource config ( custom script is wrapper to start httpd daemon which bind to loop back address,stop this daemon and check its status). But i am unable to start it through cluster, i have added some ocf_log messages in script(for debugging) and they are not coming in /var/log/messages either. Any help, links, pointers would be greatly appreciated

pshaikh

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ocf_heartbeat_evmsscc

OCF_HEARTBEAT_EVMSSC(7) 					OCF resource agents					   OCF_HEARTBEAT_EVMSSC(7)

NAME

       ocf_heartbeat_EvmsSCC - Manages EVMS Shared Cluster Containers (SCCs) (deprecated)

SYNOPSIS

       EvmsSCC [start | stop | status | monitor | meta-data]

DESCRIPTION

       Deprecation warning: EVMS is no longer actively maintained and should not be used. This agent is deprecated and may be removed from a
       future release. -- Resource script for EVMS shared cluster container. It runs evms_activate on one node in the cluster.

SUPPORTED PARAMETERS

       ignore_deprecation
	   If set to true, suppresses the deprecation warning for this agent.  (optional, boolean, default false)

SUPPORTED ACTIONS

       This resource agent supports the following actions (operations):

       start
	   Starts the resource. Suggested minimum timeout: 60.

       stop
	   Stops the resource. Suggested minimum timeout: 60.

       notify
	   Suggested minimum timeout: 60.

       status
	   Performs a status check. Suggested minimum timeout: 10. Suggested interval: 10.

       monitor
	   Performs a detailed status check. Suggested minimum timeout: 10. Suggested interval: 10.

       meta-data
	   Retrieves resource agent metadata (internal use only). Suggested minimum timeout: 5.

EXAMPLE

       The following is an example configuration for a EvmsSCC resource using the crm(8) shell:

	   primitive p_EvmsSCC ocf:heartbeat:EvmsSCC 
	     op monitor depth="0" timeout="10" interval="10"

SEE ALSO

       http://www.linux-ha.org/wiki/EvmsSCC_(resource_agent)

AUTHOR

       Linux-HA contributors (see the resource agent source for information about individual authors)

resource-agents UNKNOWN 					    03/09/2014						   OCF_HEARTBEAT_EVMSSC(7)