killall of a service process triggers service stop in Centos 7 ?

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bkannadassan
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killall of a service process triggers service stop in Centos 7 ?

Post by bkannadassan » 2018/05/17 13:17:10

Hi All!

We have a service abc which starts a process x. We have a scenario where x process crashes, which we generate via killall. In centos 6 service abc stop was not triggered when x process was killed and we see start triggered. But in Centos 7 with the same monitrc file we see service stop is initiated and then start, which causes issue for us. Any help on the same ?.

rgds
Balaji Kamal Kannadassan

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TrevorH
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Re: killall of a service process triggers service stop in Centos 7 ?

Post by TrevorH » 2018/05/17 13:20:36

Are you sure you even need to use monit with CentOS 7? CentOS 7 uses systemd instead of the old style initscripts and part of systemd can restart failing services automatically.
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bkannadassan
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Joined: 2018/05/17 10:26:35

Re: killall of a service process triggers service stop in Centos 7 ?

Post by bkannadassan » 2018/05/17 13:50:42

TrevorH wrote:Are you sure you even need to use monit with CentOS 7? CentOS 7 uses systemd instead of the old style initscripts and part of systemd can restart failing services automatically.
Thanks for the response, even without monit I see service stop is triggered and then start is triggered..

bkannadassan
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Re: killall of a service process triggers service stop in Centos 7 ?

Post by bkannadassan » 2018/05/17 16:01:12

To add some more observation if I remove ExecStop from the abc.service file. I don't see service getting stopped and started, I see service is only started.

bkannadassan
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Re: killall of a service process triggers service stop in Centos 7 ?

Post by bkannadassan » 2018/05/21 12:45:27

Apparently looks like even service stop is not entertained when stop is removed. Any help on this ?

bkannadassan
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Joined: 2018/05/17 10:26:35

Re: killall of a service process triggers service stop in Centos 7 ?

Post by bkannadassan » 2018/05/21 14:28:14

So in short..

I am killing a process which is the only one associated to this service. I don't want systemd to call stop and instead I want it to detect and just start. I tried below option

remove ExecStop from .service file..

But this causes issue, since I am not able to do service abc stop.

Any help on the same ?..

rgds
Balaji Kamal Kannadassan

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