[
https://issues.apache.org/jira/browse/MESOS-4279?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15146036#comment-15146036
]
Qian Zhang commented on MESOS-4279:
-----------------------------------
Hi [~bydga], I have tried that Vagrantfile, but can not reproduce the issue.
{code}
vagrant@mesosdocker:~$ sudo docker ps
CONTAINER ID IMAGE COMMAND CREATED
STATUS PORTS NAMES
a19d5835e2a0 bydga/marathon-test-api "./script.py" About a
minute ago Up About a minute
mesos-698041ea-d80d-4ee6-9208-33890289ef8e-S0.9a394067-b15b-433d-bec5-b7f2159ee23e
vagrant@mesosdocker:~$ sudo docker logs -f a19d5835e2a0
Hello
15:39:09.185186
Iteration #1
15:39:10.186680
Iteration #2
15:39:11.188118
Iteration #3
...
15:40:43.374853
Iteration #95
15:40:44.375835
Iteration #96
15:40:45.377367
Iteration #97
got 15
15:40:45.603347
15:40:47.605719
ending
Goodbye
{code}
As you can see, when I restarted the app in Marathon GUI, it can be gracefully
shutdown.
> Graceful restart of docker task
> -------------------------------
>
> Key: MESOS-4279
> URL: https://issues.apache.org/jira/browse/MESOS-4279
> Project: Mesos
> Issue Type: Bug
> Components: containerization, docker
> Affects Versions: 0.25.0
> Reporter: Martin Bydzovsky
> Assignee: Qian Zhang
>
> I'm implementing a graceful restarts of our mesos-marathon-docker setup and I
> came to a following issue:
> (it was already discussed on
> https://github.com/mesosphere/marathon/issues/2876 and guys form mesosphere
> got to a point that its probably a docker containerizer problem...)
> To sum it up:
> When i deploy simple python script to all mesos-slaves:
> {code}
> #!/usr/bin/python
> from time import sleep
> import signal
> import sys
> import datetime
> def sigterm_handler(_signo, _stack_frame):
> print "got %i" % _signo
> print datetime.datetime.now().time()
> sys.stdout.flush()
> sleep(2)
> print datetime.datetime.now().time()
> print "ending"
> sys.stdout.flush()
> sys.exit(0)
> signal.signal(signal.SIGTERM, sigterm_handler)
> signal.signal(signal.SIGINT, sigterm_handler)
> try:
> print "Hello"
> i = 0
> while True:
> i += 1
> print datetime.datetime.now().time()
> print "Iteration #%i" % i
> sys.stdout.flush()
> sleep(1)
> finally:
> print "Goodbye"
> {code}
> and I run it through Marathon like
> {code:javascript}
> data = {
> args: ["/tmp/script.py"],
> instances: 1,
> cpus: 0.1,
> mem: 256,
> id: "marathon-test-api"
> }
> {code}
> During the app restart I get expected result - the task receives sigterm and
> dies peacefully (during my script-specified 2 seconds period)
> But when i wrap this python script in a docker:
> {code}
> FROM node:4.2
> RUN mkdir /app
> ADD . /app
> WORKDIR /app
> ENTRYPOINT []
> {code}
> and run appropriate application by Marathon:
> {code:javascript}
> data = {
> args: ["./script.py"],
> container: {
> type: "DOCKER",
> docker: {
> image: "bydga/marathon-test-api"
> },
> forcePullImage: yes
> },
> cpus: 0.1,
> mem: 256,
> instances: 1,
> id: "marathon-test-api"
> }
> {code}
> The task during restart (issued from marathon) dies immediately without
> having a chance to do any cleanup.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
