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List:       centos
Subject:    Re: [CentOS] Issue with "ExecStartPost" attribute in systemd daemon fail
From:       Gestió Servidors <sysadmin.caos () uab ! cat>
Date:       2019-11-22 12:06:58
Message-ID: 4fe4c224-149e-5666-6523-6a720f71ff34 () uab ! cat
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Hi,

it seems there is no difference in "systemctl status crond"

> (

El 22/11/2019 a las 13:00, \
centos-request@centos.org<mailto:centos-request@centos.org> escribió:

Message: 3
Date: Thu, 21 Nov 2019 14:41:25 +0100
From: Leon Fauster <leonfauster@googlemail.com><mailto:leonfauster@googlemail.com>
To: centos@centos.org<mailto:centos@centos.org>
Subject: Re: [CentOS] Issue with "ExecStartPost" attribute in systemd
        daemon faile
Message-ID: <b58a12c2-5e5c-f7ce-d69d-d464538f1972@gmail.com><mailto:b58a12c2-5e5c-f7ce-d69d-d464538f1972@gmail.com>
                
Content-Type: text/plain; charset=utf-8; format=flowed

Am 21.11.19 um 14:28 schrieb Gesti? Servidors:


Hello,

I'm trying to configure a daemon (I'm doing tests with "crond" daemon) to send me an \
email after daemon restart. My "crond.service" file is: # \
/etc/systemd/system/crond.service [Unit]
Description=Command Scheduler
After=auditd.service systemd-user-sessions.service time-sync.target
#OnFailure=crond-notify-email@%i.service

[Service]
EnvironmentFile=/etc/sysconfig/crond
ExecStart=/usr/sbin/crond -n $CRONDARGS
ExecReload=/bin/kill -HUP $MAINPID
KillMode=process
Restart=on-failure
RestartSec=10s
ExecStartPost=/bin/sh -c "/etc/systemd/system/test.sh"

[Install]
WantedBy=multi-user.target
My "test.sh" is very simple:
#!/bin/sh
echo "CROND is restarting" | /usr/bin/mailx -s "crond failure notification" \
myemailaddress@mydomain

As you can see, I have added lines "Restart=on-failure", "RestartSec=10s" and " \
ExecStartPost=/bin/sh -c "/etc/systemd/system/test.sh"" to the original crond.service \
daemon file. Then, I run "systemctl daemon-reconfigure" and, from one console, I run \
"kill -9 `pidof cron`" for restarting crond daemon. After it, I receive an email... \
But now, if I run again ""kill -9 `pidof cron`", I don't receive any mail... I have \
notice that if I run "systemctl daemon-reload" and then kill crond process, mail is \
sent perfectly... but if I don't run "systemctl daemon-reload", mail is sent ONLY \
first time...

Why?


What is "status" showing (systemctl status crond)? For both cases
(first/second kill)? Any  differences?

--
Leon

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