exit-status: -1 when kill process through jenkins-CodePudding

I have used Jenkins for build and deploy my artifacts to server. After deploying files I stopped service by using kill command kill -9 'pgrep -f service name'

note that the service killed but jenkins job fail with status code -1 although this command works fine when I use it at shell of linux server without jenkins

Please help me why I get -1 exit status? and how I can kill process at linux server through jenkins job without failure ?

Edit : the below logs which appears after adding /bin/bash -x to my script:


 #/bin/bash -x
pid=$(pgrep -f service-name); echo "killing $pid"; kill -9 $pid;

[SSH] executing...
killing 13664
16924
16932

[SSH] completed
[SSH] exit-status: -1

Build step 'Execute shell script on remote host using ssh' marked build as failure
Email was triggered for: Failure - Any

Edit : the output of command ps -ef | grep service-name is :


ps -ef | grep service-name

[SSH] executing...
channel stopped
user     11786 11782  0 15:28 ?        00:00:00 bash -c  ps -ef | grep service-name
user     11799 11786  0 15:28 ?        00:00:00 grep service-name
root     19981 11991  0 Aug15 pts/1    00:02:53 java -jar /root/service-name /spring.config.location=/root/service-name/application.properties

[SSH] completed

--- the output of trial script :


#/bin/bash -x
ps -ef | grep service-name

pgrep -f "java -jar /root/service-name --spring.config.location=/root/service-name/application.properties" | while read pid; do
   ps -ef | grep $pid  
   kill -9 $pid
   echo "kill command returns $?"
done

[SSH] executing...
channel stopped
root     56980 11991 37 11:03 pts/1    00:00:33 java -jar /root/service-name --spring.config.location=/root/service-name/application.properties
root     57070 57062  0 11:05 ?        00:00:00 bash -c  #/bin/bash -x ps -ef | grep service-name  pgrep -f "java -jar /root/service-name --spring.config.location=/root/service-name/application.properties" | while read pid; do    ps -ef | grep $pid      kill -9 $pid    echo "kill command returns $?" done
root     57079 57070  0 11:05 ?        00:00:00 grep service-name
root     56980 11991 37 11:03 pts/1    00:00:33 java -jar /root/service-name --spring.config.location=/root/service-name/application.properties
root     57083 57081  0 11:05 ?        00:00:00 grep 56980
kill command returns 0
root     57070 57062  0 11:05 ?        00:00:00 bash -c  #/bin/bash -x ps -ef | grep service-name  pgrep -f "java -jar /root/service-name --spring.config.location=/root/service-name/application.properties" | while read pid; do    ps -ef | grep $pid      kill -9 $pid    echo "kill command returns $?" done
root     57081 57070  0 11:05 ?        00:00:00 bash -c  #/bin/bash -x ps -ef | grep service-name  pgrep -f "java -jar /root/service-name --spring.config.location=/root/service-name/application.properties" | while read pid; do    ps -ef | grep $pid      kill -9 $pid    echo "kill command returns $?" done
root     57085 57081  0 11:05 ?        00:00:00 grep 57070
kill command returns 0
root     57081     1  0 11:05 ?        00:00:00 bash -c  #/bin/bash -x ps -ef | grep service-name  pgrep -f "java -jar /root/service-name --spring.config.location=/root/service-name/application.properties" | while read pid; do    ps -ef | grep $pid      kill -9 $pid    echo "kill command returns $?" done
root     57086 57081  0 11:05 ?        00:00:00 ps -ef
root     57087 57081  0 11:05 ?        00:00:00 grep 57081

[SSH] completed
[SSH] exit-status: -1 ```

CodePudding user response：

If you want to kill any process whose full command line match service-name you should change your script:

#/bin/bash
pgrep -f service-name | while read pid; do
   ps -ef | grep $pid   # so you can see what you are going to kill
   kill -9 $pid
done

Command pgrep returns a list of process one per line.

In order to get pid list separated by a space and call kill command once:

#/bin/bash
kill -9 $(pgrep -f service-name -d " ")

In order to view which process are selected by pgrep use:

pgrep -a -f sevice-name

ps -ef | grep service-name

use man pgrep to see all options

In your case, job is killed because pgrep match the job script, so you should use a more specific pattern with the -x parameters:

#/bin/bash 
pgrep -xf "java -jar /root/service-name --spring.config.location=/root/service-name/application.properties" | while read pid; do
   kill -9 $pid
done