Forum: CFEngine Help
Subject: Re: Why it's necessary to restart defined service one time.
Author: juriskrumins
Link to topic: https://cfengine.com/forum/read.php?3,27210,27219#msg-27219
neilhwatson Wrote:
-------------------------------------------------------
> This is a regex that goes to the processes
> promise: .*/sshd. I"ll bet that no such process
> exists.
sshd process exists when we've executeed this policy. I've tested this regex
one more time. This what I got:
# service sshd status
openssh-daemon (pid 1440) is running...
# ps -ef | grep ".*/sshd"
root 1440 1 0 21:33 ? 00:00:00 /usr/sbin/sshd
root 2722 2083 0 21:36 ? 00:00:00 /usr/sbin/sshd
root 3000 2063 0 21:38 pts/0 00:00:00 grep .*/sshd
# ps -ef | grep ".*/sshd"
root 1440 1 0 21:33 ? 00:00:00 /usr/sbin/sshd
root 2722 2083 0 21:36 ? 00:00:00 /usr/sbin/sshd
root 3079 2063 0 21:40 pts/0 00:00:00 grep .*/sshd
# service sshd status
openssh-daemon (pid 1440) is running...
cf3> * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
cf3> BUNDLE generic_services(
{'$(this.promiser)','$(this.service_policy)','.*/sshd','1'} )
cf3> * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
cf3>
cf3> Initiate variable convergence...
cf3> ? Augment scope generic_services with service (s)
cf3> ? Augment scope generic_services with state (s)
cf3> ? Augment scope generic_services with proc_name (s)
cf3> ? Augment scope generic_services with proc_ppid (s)
cf3>
cf3> =========================================================
cf3> vars in bundle generic_services (1)
cf3> =========================================================
cf3>
cf3>
cf3> =========================================================
cf3> classes in bundle generic_services (1)
cf3> =========================================================
cf3>
cf3> ?> defining explicit local bundle class start
cf3> Initiate variable convergence...
cf3>
cf3> + Private classes augmented:
cf3> + start
cf3>
cf3> - Private classes diminished:
cf3>
cf3>
cf3>
cf3> =========================================================
cf3> processes in bundle generic_services (1)
cf3> =========================================================
cf3>
cf3> Observe process table with /bin/ps -eo
user,pid,ppid,pgid,pcpu,pmem,vsz,pri,rss,nlwp,stime,time,args
cf3>
cf3> .........................................................
cf3> Promise's handle:
cf3> Promise made by: ".*/sshd"
cf3>
cf3> Comment: Verify that the service appears in the process table
cf3> .........................................................
cf3>
cf3> !! Matched: root 1440 1 1440 0.0 0.1 64072 19 1088
1 21:33 00:00:00 /usr/sbin/sshd
cf3> -> Found matching pid 1440
(root 1440 1 1440 0.0 0.1 64072 19 1088 1 21:33
00:00:00 /usr/sbin/sshd)
cf3> -> No signals to send for .*/sshd
cf3> -> No restart promised for .*/sshd
cf3>
cf3> . . . . . . . . . . . . . . . . . . . . . . . . . . . .
cf3> Skipping whole next promise (.*/sshd), as context stop is not relevant
cf3> . . . . . . . . . . . . . . . . . . . . . . . . . . . .
cf3>
cf3> =========================================================
cf3> commands in bundle generic_services (1)
cf3> =========================================================
cf3>
cf3>
cf3> . . . . . . . . . . . . . . . . . . . . . . . . . . . .
cf3> Skipping whole next promise (/sbin/service sshd start), as var-context
start_sshd is not relevant
cf3> . . . . . . . . . . . . . . . . . . . . . . . . . . . .
cf3>
Maybe this issue is more about process cache and since I tend to run cf-agent
with -KI options (at least while testing policies), then maybe cache was not
updated that moment.
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