What would happen if two people ran rsync on the same set of source files to the same destination machine? Do we need some sort of queuing or interlock mechanism to prevent simultaneous rsyncs?
We have a script that uses rsync to distribute files from our AFS space here to the local disks of about twenty-five machines around the US and Europe. There are about ten or fifteen people here who update the source directory and run the distribution script.
So, someone might update the source directory while someone else is already doing a distribution. That's actually not so bad, since when the first person then does a distribution, things will again be in sync.
More problematical is when two or more distributions overlap. What would happen in that case?
It takes about twenty or thirty minutes to distribute the files to all the machines on our list. So, it's possible that the two rsyncs would be working on the same destination machine at the same time.
If we don't need some sort of queue or interlock, then do we need to run a third rsync after the overlapping pair have finished to make sure that everything's OK?
Thanks,
Marc -- Spitzer Space Telescope Downlink Systems Engineer +1 818 393-7786 (voice) +1 818 393-6236 (fax) Mail Stop: 264-767 mailto:[EMAIL PROTECTED]
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