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Script to monitor a process and track status in a file

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# 1  
Old 05-19-2011
Error Script to monitor a process and track status in a file
i have a scenario where i need a script that monitors a process "Monitor" based on process id... there can be any number of instances of this running... i start this across 4 servers in NFS. Now i need a file which has the process ids of the process that are currently in execution at any instant,this script must also remove an entry of a process as an when that process completes.
# 2  
Old 05-19-2011
What are things you want to monitor ? Is it only the status that process running or not or anything else.
# 3  
Old 05-19-2011
status and memory utilization.....
# 4  
Old 05-19-2011
First you need to capture the PID when every the process-to-be-monitored is started. This can be done either using a startup script to start the process and add the PID in to a file or directly from your process to write its own PID.

Once this is captured you can write shell script that periodically checks for the status of the processes and their memory utilization. say every 1 mins or 2 mins. If the PID exists but for a different process then remove the PID.

Note this idea has to refined to your needs.
# 5  
Old 05-19-2011
i could do till adding of process ids....the problem is deletion should happen after monitoring across NFS connected servers where im not able to proceed....
# 6  
Old 05-19-2011
I don't understand the point "NFS connected servers". Is it like NFS clients that are running the processes and you want NFS server to monitor the process status.
# 7  
Old 05-19-2011
just to say that all servers share file system thats it....i tried with ssh but its taking a long time to update...
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