A WBS (Work Breakdown Structure) is a valuable planning tool which is often overlooked in the rush to create a project schedule. A WBS is a tool defined in the PMBOK. It is a structured decomposition of the entire scope of the project. PRINCE2 also defines a similar planning mechanism…
Running ConfigNOW Asynchronously
I thought I’d share this with you all as you may find this useful.
The question raised by a customer was how can they run multiple instances of ConfigNOW at the same time. The reason for this request is to allow them to run multiple instances of OSB deployer into different environments at the same time.
So I came up with this, which in theory should work but I haven’t had a chance to test against their actual deployments yet.
If deemed as worthwhile this could probably be wrapped up in script and added as a feature to “ConfigNOW”
In the root of the ConfigNow directory
Open up a new terminal session and create a couple of named pipes
$ mkfifo deployment-1 deployment-2 $ ls deployment* prw-r--r-- 1 mmochan staff 0 8 Mar 13:27 deployment-1 prw-r--r-- 1 mmochan staff 0 8 Mar 13:29 deployment-2
Notice the P flag ( Named Pipe )
Fire up another 2 terminal sessions
In each of the sessions change into the ConfigNOW directory and run
while true; do sh -c "$( cat deployment-1)" ; done
the -c flag basically executes the commands coming out of the cat command.
while true; do sh -c "$( cat deployment-2)" ; done
Back in your original terminal session
echo "./ConfigNow.sh help" > deployer-1; echo "./ConfigNow.sh help" > deployer-2
Note: In the code example above substitute &gt; with >
Both ConfigNOW help commands will be run simultaneously and the output will display in both Terminal 1 and Terminal 2.