• There are several server processes that the operating system can monitor and automatically restart when the server processes stop abnormally.
• To set up this function on a Linux^® or supported UNIX^® operating system, you must have root authority to edit the inittab file.
• You can restart the server1 process, with the below example.
• On a Linux or supported UNIX operating system, you must manually create a shell script that automatically starts any of the processes previously mentioned. Each UNIX shell script controls a single process, such as a stand-alone product instance. Multiple stand-alone Application Server processes require multiple UNIX scripts, which you can define.
• For example you want to start the Websphere general server which is server1 to make the Websphere service up.
• We perform this using the following step generally which is ..WebSphere/AppServer/bin#./startServer.sh server1
• But to start this automatically you have to prepare a general script which will be triggered while system starts.
• You can generate the script automatically by running the following command

• ..WebSphere/AppServer/bin#./startServer.sh server1 -script -background

• Now check in the ..WebSphere/AppServer/bin# directory for the newly created file with name start_server1.sh
• Now the next step is to Locate the rc.was example shell script, which is in the app_server_root /bin directory.
  
• Now by following the sample script rc.was create your own rc.s1 like shell scripts under ..WebSphere/AppServer/bin ..itself.
  
• Create a new shell script for each process that the operating system is to monitor and restart. like rc.s1,rc.s2  etc s1: server1, s2:server2 ..
• Edit the inittab file of the operating system, to add an entry for each shell script you have created.
• Comments in the header of the rc.was file include a sample inittab entry line for adding this script to the inittab table.
  
• Each inittab entry causes the operating system to call the specified shell script whenever the system initializes.
  
• As each shell script runs, it monitors and starts the server process you specified.
• For example, if you create the following inittab entry for a process, the rc.was shell script is run whenever the system initializes, and if the process goes down while the system is initializing into a machine that is operating at a runlevel of 2, 3, or 5:
• was:235:respawn:/usr/WebSphere/AppServer/bin/rc.was >/dev/console 2>&1
  
• Ok lets create entry for our server1 in the /etc/inittab  at the end of file like below
  

• s1:2345:once:/opt/IBM/WebSphere/AppServer/bin/rc.s1 >/dev/console 2>&1

• As we have already created rc.s1 and start_server1.sh under /opt/IBM/WebSphere/AppServer/bin when the server1 process goes down or when system rebooted the the Websephere server1 process will be made up automatically.

• How to compare strings in the jython/python script

norm = "6.0.2.35"
if cmp(wsadminVers, norm) == -1:
     print "quote_required"
else:
    print "quote_not_required"
    quote = 0
    print quote

• How to resolve this exceptions or errors

    public void testMain(Object[] args)
        {
            Date dt = new Date();
            System.out.println("Todays Date and time:"+dt);
            Calendar c = Calendar.getInstance();
            System.out.println("Current System timeZone : "+c.getTimeZone());
            System.out.println("current time : "+c.getTime());
            System.out.println("Current time in millis : "+c.getTimeInMillis());
            //Lets change the JVM time zone and see
            TimeZone cst = TimeZone.getTimeZone("CST");
            cst.setDefault(cst);
            System.out.println("new time zone: "+cst);
            Calendar curCal=Calendar.getInstance(cst);
            //System.out.println("New time Zone : "+curCal.getTimeZone());
            System.out.println("New time with : "+curCal.getTime());
            System.out.println("New Time in millis: " +curCal.getTimeInMillis());
            //Some other time operations      
            Timestamp timeNow = new Timestamp(curCal.getTimeInMillis());
            System.out.println("Time stamp type of timeNow= " + timeNow);
            sleep(10);
            //After some time
            c = Calendar.getInstance();
            System.out.println("Current timeZone : "+c.getTimeZone());
            System.out.println("current time : "+c.getTime());
            System.out.println("current time in millis : "+c.getTimeInMillis());
            //To pass the current local time format and display like that
            SimpleDateFormat DF = new SimpleDateFormat();
            System.out.println("Current sys time format : "+ DF.format(c.getTime()));
            SimpleDateFormat DF1 = new SimpleDateFormat("yyyy-MM-dd HH.mm.ss");
            System.out.println("Change the Current sys time format : "+ DF1.format(c.getTime()));
        }

    Todays Date and time:Thu Mar 11 12:21:59 IST 2010
    Current System timeZone : sun.util.calendar.ZoneInfo[id="Asia/Calcutta",offset=19800000,dstSavings=0,useDaylight=false,transitions=6,lastRule=null]
    current time : Wed Mar 03 15:47:38 IST 2010
    Current time in millis : 1267611458390
    new time zone: sun.util.calendar.ZoneInfo[id="CST",offset=-21600000,dstSavings=3600000,useDaylight=true,transitions=235,lastRule=java.util.SimpleTimeZone[id=CST,offset=-21600000,dstSavings=3600000,useDaylight=true,startYear=0,startMode=3,startMonth=2,startDay=8,startDayOfWeek=1,startTime=7200000,startTimeMode=0,endMode=3,endMonth=10,endDay=1,endDayOfWeek=1,endTime=7200000,endTimeMode=0]]
    New time with : Wed Mar 03 04:17:38 CST 2010
    New Time in millis: 1267611458406
    Time stamp type of timeNow= {SysUpTime = 146714 days 6:56:24} {Timestamp = Wed Mar 03 04:17:38 CST 2010}
    Current timeZone : sun.util.calendar.ZoneInfo[id="CST",offset=-21600000,dstSavings=3600000,useDaylight=true,transitions=235,lastRule=java.util.SimpleTimeZone[id=CST,offset=-21600000,dstSavings=3600000,useDaylight=true,startYear=0,startMode=3,startMonth=2,startDay=8,startDayOfWeek=1,startTime=7200000,startTimeMode=0,endMode=3,endMonth=10,endDay=1,endDayOfWeek=1,endTime=7200000,endTimeMode=0]]
    current time : Wed Mar 03 04:17:48 CST 2010
    current time in millis : 1267611468406
    Current sys time format : 3/3/10 4:17 AM
    Change the Current sys time format : 2010-03-03 04.17.48