hi,
How u do syncronization between different processes ?
I'm thinking of implementing one management script which will launch different scripts depending on some conditions.
The management script can run as daemon or fire-up from time to time..
let me give one example, i call :
mgmt -addUser blah
and it fires :
1. A script which adds a user to DB
2. generate modified dhcpd.conf file
3. copy the file to other computer
4. restart the remote dhcpd server


several problems arise here, I dont want to call this sequence too fast so that it can DoS the dhcp-service. (think of many users calling "mgmt" simultaneously)
On the other hand "mgmt" may run in deamon mode and accept queries for executing many similar sequences, so it would be better if I wait ~5sec or so before restarting the service.
Some of the functions such as adding user can be implemented as part of "mgmt" or as separate process, what I have in mind is that no matter that some part of the process is a part of "monilite" program it still has to syncronize with the others..
I also want to be a little clever say i got for 10 times every 5 sec request for restart, it will be better then to increase this 5sec period to say 15sec..(up to X) and later when things go down fall to 5sec again.
This is simplification of cource there will be a doesen of processes that copy files between machines, alot of services involved etc...
I just need some pointers for further reading ofcource Perl oriented :"), discussion etc..

In reply to process syncronization by bugsbunny

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