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I'm having some trouble figuring out how the services work on CentOS. Right now I have the following service file:

[Unit]

Description=SomeDescription

After=network.target



[Service]

Type=simple

ExecStart=/usr/bin/script



[Install]

WantedBy=multi-user.target

This will launch a script that calls an executable that will never return:

#!/bin/bash

export LD_LIBRARY_PATH=SOMEPATH && cd SOMEOTHERPATH && ./EXECUTABLE

The executable never returns. When I launch the service, it runs for a while but then exits due to timeout:

Job for selftester.service failed because a timeout was exceeded. See "systemctl status selftester.service" and "journalctl -xe" for details.

I noticed that if I change explicitly the script to run the executable in the background it works:

#!/bin/bash

export LD_LIBRARY_PATH=SOMEPATH && cd SOMEOTHERPATH && ./EXECUTABLE &

Is that the correct implementation?
Thanks in advance

centos systemd

share|improve this question

asked yesterday

Ricardo AlvesRicardo Alves

10111 bronze badge

New contributor

Ricardo Alves is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  The environment variable and the working directory can both be set in the service directly, so why are they set separately in a script?
  
  – muru
  yesterday
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @muru I didn't know I could do that. I followed your suggestions and I could get it to work. Thanks!
  
  – Ricardo Alves
  yesterday
  

  
  
  
  

add a comment | 

0

I'm having some trouble figuring out how the services work on CentOS. Right now I have the following service file:

[Unit]

Description=SomeDescription

After=network.target



[Service]

Type=simple

ExecStart=/usr/bin/script



[Install]

WantedBy=multi-user.target

This will launch a script that calls an executable that will never return:

#!/bin/bash

export LD_LIBRARY_PATH=SOMEPATH && cd SOMEOTHERPATH && ./EXECUTABLE

The executable never returns. When I launch the service, it runs for a while but then exits due to timeout:

Job for selftester.service failed because a timeout was exceeded. See "systemctl status selftester.service" and "journalctl -xe" for details.

I noticed that if I change explicitly the script to run the executable in the background it works:

#!/bin/bash

export LD_LIBRARY_PATH=SOMEPATH && cd SOMEOTHERPATH && ./EXECUTABLE &

Is that the correct implementation?
Thanks in advance

centos systemd

share|improve this question

asked yesterday

Ricardo AlvesRicardo Alves

10111 bronze badge

New contributor

Ricardo Alves is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  The environment variable and the working directory can both be set in the service directly, so why are they set separately in a script?
  
  – muru
  yesterday
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @muru I didn't know I could do that. I followed your suggestions and I could get it to work. Thanks!
  
  – Ricardo Alves
  yesterday
  

  
  
  
  

add a comment | 

I'm having some trouble figuring out how the services work on CentOS. Right now I have the following service file:

[Unit]

Description=SomeDescription

After=network.target



[Service]

Type=simple

ExecStart=/usr/bin/script



[Install]

WantedBy=multi-user.target

This will launch a script that calls an executable that will never return:

#!/bin/bash

export LD_LIBRARY_PATH=SOMEPATH && cd SOMEOTHERPATH && ./EXECUTABLE

The executable never returns. When I launch the service, it runs for a while but then exits due to timeout:

Job for selftester.service failed because a timeout was exceeded. See "systemctl status selftester.service" and "journalctl -xe" for details.

I noticed that if I change explicitly the script to run the executable in the background it works:

#!/bin/bash

export LD_LIBRARY_PATH=SOMEPATH && cd SOMEOTHERPATH && ./EXECUTABLE &

Is that the correct implementation?
Thanks in advance

centos systemd

share|improve this question

asked yesterday

Ricardo AlvesRicardo Alves

10111 bronze badge

New contributor

Ricardo Alves is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

[Unit]

Description=SomeDescription

After=network.target



[Service]

Type=simple

ExecStart=/usr/bin/script



[Install]

WantedBy=multi-user.target

#!/bin/bash

export LD_LIBRARY_PATH=SOMEPATH && cd SOMEOTHERPATH && ./EXECUTABLE

Job for selftester.service failed because a timeout was exceeded. See "systemctl status selftester.service" and "journalctl -xe" for details.

#!/bin/bash

export LD_LIBRARY_PATH=SOMEPATH && cd SOMEOTHERPATH && ./EXECUTABLE &

share|improve this question

asked yesterday

Ricardo AlvesRicardo Alves

10111 bronze badge

New contributor

Ricardo Alves is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

share|improve this question

asked yesterday

Ricardo AlvesRicardo Alves

10111 bronze badge

New contributor

Ricardo Alves is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

asked yesterday

Ricardo AlvesRicardo Alves

10111 bronze badge

New contributor

Ricardo Alves is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

asked yesterday

Ricardo AlvesRicardo Alves

10111 bronze badge