Re: is there a reason for starting zookeeper.service in background?

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> "Type=forking" implies that depending services are started *after* the forking and the service is *really* read (it needs depending on the signatures a longer time for initalization)

but I guess it needs a PID file path to work properly which is not the case.

I'm not really sure about the readyness thingy in case of zookeeper but I guess both simple and forking do not know when exactly the when port is opened (I guess only notify does that)



On Mon, Jan 11, 2016 at 3:18 PM, Reindl Harald <h.reindl@xxxxxxxxxxxxx> wrote:


Am 11.01.2016 um 14:06 schrieb Muayyad AlSadi:
hi,

in fedora's zookeeper service < /usr/lib/systemd/system/zookeeper.service
we have the following line

ExecStart=/usr/bin/zkServer.sh start zoo.cfg

why not

ExecStart=/usr/bin/zkServer.sh start-foreground zoo.cfg

of type simple

specially that file does not contain "PIDFile=" directive

type simple don't come without drawbacks
depending service shave *no idea* if it is ready

the "clamd" service as example comes with "Type = simple" which means when you are using clamav-milter you get at boot a ton of warnings while "Type=forking" implies that depending services are started *after* the forking and the service is *really* read (it needs depending on the signatures a longer time for initalization)


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