Bug 1096286

Summary:	"docker top all" doesn't show processes when --tty=false
Product:	Red Hat Enterprise Linux 7	Reporter:	Lukáš Doktor <ldoktor>
Component:	docker	Assignee:	Lokesh Mandvekar <lsm5>
Status:	CLOSED CURRENTRELEASE	QA Contact:	Virtualization Bugs <virt-bugs>
Severity:	medium	Docs Contact:
Priority:	unspecified
Version:	7.0	CC:	admiller, cevich, dwalsh, golang-updates, jkeck, lsm5, mattdm, mgoldman, skottler, vbatts
Target Milestone:	rc
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:	1088259	Environment:
Last Closed:	2014-06-03 15:04:13 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1088259
Bug Blocks:

Description Lukáš Doktor 2014-05-09 15:11:25 UTC

+++ This bug was initially created as a clone of Bug #1088259 +++
After using the same magic required for the upstream docker 0.10 this behaves the same on RHEL docker-0.10.0-8.el7.x86_64

Description of problem:
Hi guys, when I run docker with --tty=false, the `docker top $NAME all` doesn't show any processes (just headers). When using only `docker top $NAME` it shows them...

Also the `ps` command inside container works, but `ps all` does not.

Version-Release number of selected component (if applicable):
docker-0.10.0-8.el7.x86_64
docker-io-0.9.0-3.fc20.x86_64


How reproducible:
always

Steps to Reproduce:
1. docker run -i --tty=false fedora bash
2. docker logs $NAME

Actual results:
F                   UID                 PID                 PPID                PRI                 NI                  VSZ                 RSS                 WCHAN               STAT                TTY                 TIME                COMMAND

Expected results:
F                   UID                 PID                 PPID                PRI                 NI                  VSZ                 RSS                 WCHAN               STAT                TTY                 TIME                COMMAND
1                   0                   24006               23954               20                  0                   11732               540                 -                   R                   pts/14              0:00                bash

--- Additional comment from Lukas Doktor on 2014-05-05 03:41:35 EDT ---

Can't reproduce with the upstream Docker version 0.10.0, build dc9c28f/0.10.0 top doesn't work at all (due of https://bugzilla.redhat.com/show_bug.cgi?id=1088125 )

--- Additional comment from Lukas Doktor on 2014-05-05 03:46:07 EDT ---

OK I moved it to the old cgroup location and the results are the same. So booth, fedora docker-io-0.9.0-3.fc20.x86_64 and upstream dc9c28f/0.10.0 are unable to list processes using `all` argument in non-tty mode.

Comment 2 Lukáš Doktor 2014-05-29 11:18:41 UTC

I'm sorry there is a typo in reproducer:

Steps to Reproduce:
1. docker run -i --tty=false fedora bash
2. docker top $NAME all

Comment 3 Daniel Walsh 2014-05-29 13:04:50 UTC

I got other parameters to show with the ps command

-x
and 
-Z

Worked fine.

Comment 4 Lukáš Doktor 2014-06-03 15:04:13 UTC

Hi Daniel, this issue seems to be fixed in docker-0.11.1-10.el7.x86_64. Thank you.