[KARAF-6141] Client hangs sporadic, if started without an tty

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Cannot Reproduce
• Affects Version/s: 4.2.2
• Component/s: karaf

Environment

SuSe Linux

• Assignee: Jean-Baptiste Onofré
• Reporter: M Gerstädt
• Created: 07/Feb/19 09:44
• Updated: 16/Dec/19 07:17
• Resolved: 16/Dec/19 07:17

Description

Hello,

since Version 4.2.2 the bin/client process hangs sporadic, if it has been started as a process, which is not attached to a tty (for example with cronjob). Before Version 4.2.2 the client works fine.

Below is a simple example to reproduce this issue:

 

while true; do
  setsid sh -c 'echo $$ ; ${KARAF_DIR}/bin/client -a ${SSH_PORT} "exit"' < /dev/null
  sleep 2
done

After some iterations, you should find some hanging "org.apache.karaf.client.Main -a 8101 exit" processes with ps -ef.

 

Issue Links

• is related to: KARAF-5995 ensure there is a way to quit bin/client "cmd"