Re: [Moosefs-users] supervise mfs daemons

[jose m. <let...@us...>]

El Miércoles 28 Abril 2010, Michał Borychowski escribió:
> Option '-f' has never been used to start MooseFS processes without forking.
> 
> Options '-f' and '-s' have been replaced by parameters 'start', 'restart'
> and 'stop'.
> 
> In order to run MooseFS processes in foreground use '-d' option. It is used
> mainly for debugging but it also starts processes without forking. So we
> assume that it would be somehow possible to use 'daemontools' with this
> option of MooseFS.
> 
> But bear in mind that it would work only in chunkservers. If the master
> server crashes you need to run "mfsmetarestore" before starting it again.
> You could think about writing a script which automatically starts
> "mfsmetarestore" and if there are no errors, starts the master server.
> 
> 
> If you need any further assistance please let us know.
> 

* the problem would be detected when the service crashes or not, and not for a 
normal stop, start, restart operation.

* I'm sorry I'm not a programmer.

* I use crontab in all processes and machines, and sysvinit package.
* adapt to the particular needs options in runmaster for mfsmaster and 
mfsmetarestore process.

*/5 * * * * VigilarMFS.sh RunMaster.sh >/dev/null 2>&1

* options on crontab. or commandline
-u user  (other user , default root)
* commandline option
-s (stop process)

/usr/local/sbin/VigilarMFS.sh -u user RunMaster.sh
/usr/local/sbin/VigilarMFS.sh -s RunMaster.sh

* sorry Google Translator ...........