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Full Discussion: Find the remote server status.
Top Forums Shell Programming and Scripting Find the remote server status. Post 302884449 by blackrageous on Monday 20th of January 2014 11:45:37 AM
Old 01-20-2014
Simple...ping by IP address. Let the cluster worry about the actual node you attach to in the case of B. Unless you can ping the unique IP addresses of the nodes that comprise the cluster (this of course depends on how the ip address is "shared" on the cluster nodes; i.e. round-robin) .

You can test the success/failure of the ping or the sftp (the ping is probably faster to give results since you can control it with a -c Count and -w timeout options). I would also trust ping more so than sftp for returning status of failure or success.

So you can do something like...

Code:
if ping -q -c3 -w 3 A
then
  sftp .... to A
else if ping -q -c3 -3 5 B
then
 sftp to B
else
 echo "Failed to sftp to either A or cluster B"
fi

or suppose you can ping the unique addresses of cluster B, say B1 and B2 (make sure you can, because cluster nodes unique ip addresses could be on a different segment depending on the cluster)...not really different...

Code:
if ping -q -c3 -w3 A
then
  sftp .... to A
else if ping -q -c3 -w3 B1
then
 sftp... to B1
else if else if ping -q -c3 -w3 B2 
 sftp... to B2
else
 echo "Failed to sftp to either A or B1 or B2"
fi

I did not test this but you should be able to get the idea.
 

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LEARN ABOUT SUNOS

asadmin-stop-instance

asadmin-stop-instance(1AS)					   User Commands					asadmin-stop-instance(1AS)

NAME

       asadmin-stop-instance, stop-instance - stops the specified server instance and all the services associated with it

SYNOPSIS

       stop-instance  [--user  admin_user]  [--password  admin_password]  [--host local_host] [--port 4848] [--local=false] [--domain domain_name]
       [--secure|-s]instance_name

       Use the stop-instance to stop the instance with the instance name specified. The stop-instance can be run both locally and  remotely.   The
       named instance must already exist within the given domain; and the instance must be running.

OPTIONS

       --user		       administrative user associated for the instance.

       --password	       administrative password corresponding to the administrative user.

       --host		       host name of the machine hosting the administrative instance.

       --port		       administrative port number associated with the administrative host.

       --local		       determines if the command should delegate the request to administrative instance or run locally.

       --domain 	       name of the domain.

       --passwordfile	       file containing passwords appropriate for the command (e.g., administrative instance).

       --secure 	       if true, uses SSL/TLS to communicate with the administrative instance.

OPERANDS

       instance_name	       name of the instance to be stopped.

       Example 1: Using stop-instance in local mode

       asadmin> stop-instance --local --domain domain1 server1
       Instance server1 stopped

       Where: the server1 instance associated with the domain1 domain is stopped locally.

       Example 2: Using stop-instance in remote mode

       asadmin> stop-instance --user admin --password bluestar --host localhost --port 4848 server1
       Instance server1 stopped

       Where: the server1 instance associated with the named user, password, host and port is deleted from the remote machine.

EXIT STATUS

       0		       command executed successfully

       1		       error in executing the command

INTERFACE EQUIVALENT

       Server Instance page

       asadmin-delete-instance(1AS),   asadmin-start-instance(1AS),  asadmin-create-instance(1AS),  asadmin-restart-instance(1AS),  asadmin-start-
       appserv(1AS), asadmin-stop-appserv(1AS), asadmin-start-domain(1AS), asadmin-stop-domain(1AS)

J2EE 1.4 SDK							    March 2004						asadmin-stop-instance(1AS)
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