[JIRA] [core] (JENKINS-34079) Python pexpect process wrapped within a python script always timeout on lengthly process when running it via Jenkins (under "Execute Shell")

tlian@us.ibm.com (JIRA)

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Apr 6, 2016, 11:14:01 PM4/6/16

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Thawngzapum Lian created an issue

JENKINS-34079

Python pexpect process wrapped within a python script always timeout on lengthly process when running it via Jenkins (under "Execute Shell")

Issue Type:	Bug
Assignee:	Unassigned
Components:	core
Created:	2016/Apr/07 3:13 AM
Environment:	Red Hat Enterprise Linux Server release 7.2 (Maipo) Jenkins Version 1.653 The aforementioned issue was not found in Version 1.579
Priority:	Major
Reporter:	Thawngzapum Lian

Python pexpect process wrapped in a python script always timeout on lengthy process when running it via Jenkins (under "Execute Shell").
The same script successfully ran when directly running it on console terminal.
Can Jenkins shell can be run under pseudo terminal slave (pts/N)?

Python script as run as below
python python-script.py --param1=<value> --param2=<value>

Python pexpect process was instantiated in python-script.py

Monitoring the process (Manual run vs. Jenkins run)
Jenkins run (Script did NOT run OK)
UID PID PPID C STIME TTY TIME CMD
root 11909 31184 0 21:52 ? 00:00:00 /bin/sh -xe /tmp/hudson2869108017601047728.sh

Manual Run (Script ran OK)
root 2356 18925 0 21:00 pts/0 00:00:01 /bin/sh -xe /tmp/hudson2869108017601047728.sh

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tlian@us.ibm.com (JIRA)

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Apr 6, 2016, 11:17:01 PM4/6/16

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Thawngzapum Lian updated an issue

Jenkins /

JENKINS-34079

Python pexpect process wrapped within a python script always timeout on lengthly process when running it via Jenkins (under "Execute Shell")

Change By:	Thawngzapum Lian

Please note that the aforementioned issue was not found in Version 1.579.
The issue surfaced after upgrade to Version 1.653

Python pexpect process wrapped in a python script always timeout on lengthy process when running it via Jenkins (under "Execute Shell").
The same script successfully ran when directly running it on console terminal.
Can Jenkins shell can be run under pseudo terminal slave (pts/N)?

Python script as run as below
python python-script.py --param1=<value> --param2=<value>

Python pexpect process was instantiated in python-script.py

Monitoring the process (Manual run vs. Jenkins run)
Jenkins run (Script did NOT run OK)
UID      PID      PPID   C   STIME  TTY     TIME       CMD
root     11909   31184  0   21:52     ?         00:00:00  /bin/sh -xe /tmp/hudson2869108017601047728.sh

Manual Run (Script ran OK)
root      2356 18925  0  21:00  pts/0    00:00:01  /bin/sh -xe /tmp/hudson2869108017601047728.sh