Check the Cluster status before start the cluster using WLST

[Brahma Kolagani]

Hi,
I am beginner in writing WLST script, I'm using WebLogic 10.3. and trying to write a WLST script that will start my cluster. but before start the cluster, I need to check the status of cluster and based on the result(running or studown on cluster level ) then start the cluster if it is down else say cluster is already running.
So, Does anyone have solution that will check the status before start the cluster?. I appreciate your help.

Thanks
Brahma.

[Pavan BhavaniShekhar]

Hi
1. Connect to your admin URL
2.

    try:
                state(clstrName,"Cluster")
        except Exception, e:
                print 'Error while shutting down cluster ',e
                dumpStack()
 

3. Hope your domain using NodeManager call the start on the cluster

Further any more info revert back

[Brahma Kolagani]

Hi Pavan,

Thank you for your help. I guess, if we run the command- state(clusterName, "httpTransPort") the output should be like

There are 2 server(s) in cluster: httpTransport

States of the servers are
httpTransport2---SHUTDOWN
httpTransport1---RUNNING.


But I am looking the status from cluster level just kind of RUNNING or SHUTDOWN. So, i can use the return value and run the below condition.

statusStopped=`java weblogic.WLST cluster_status.py | grep SHUTDOWN`
DEBUG echo "Status: status=$statusStopped"
#If statusStopped is null then it must be running or partially started

if [ "$statusStopped" = "SHUTDOWN" ]
then
DEBUG echo "Status: Cluster $clusterName is stopped."
DEBUG echo -e "\nStatus: Cluster $clusterName is stopped." >> ${outputLog1}
exit 0
else
statusRunning=`java weblogic.WLST cluster_status.py | grep RUNNING`
if [ "$statusRunning" = "RUNNING" ]
then
DEBUG echo "Success: Cluster $clusterName is running"
DEBUG echo -e "\nSuccess: Cluster $clusterName is running" >> ${outputLog1}
exit 0

else
DEBUG echo "Falure: Error when calling cluster_status.py and please contact Middleware oncall person."
DEBUG echo -e "\nFalure: Error when calling cluster_status.py and please contact Middleware oncall person." >> ${outputLog1}
exit 1

fi

fi


I appreciate your help.

[Pavan BhavaniShekhar]

In Python you can send mail too If you want to send alert message to mobile.
It is almost similar to shell script with more comfort so why you need 2 scripts instead of single python script can do.
All the above mentioned logic you can have in python script too right??