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[OpenStack Infra <1820870@xxxxxxxxxxxxxxxxxx>]

Reviewed:  https://review.openstack.org/647605
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=cf13b2f0cc18fdb1d512ecfe9f2c65ad4bb284dd
Submitter: Zuul
Branch:    master

commit cf13b2f0cc18fdb1d512ecfe9f2c65ad4bb284dd
Author: Slawek Kaplonski <skaplons@xxxxxxxxxx>
Date:   Mon Mar 25 21:54:52 2019 +0100

    Check if process' cmdline is "space separarated"
    
    According to proc man page process arguments in /proc/{pid}/cmdline
    should be separated with '\0' char and that char was used in
    neutron.agent.linux.utils.get_cmdline_from_pid function.
    
    Recently in fullstack tests it was noticed that sometimes it may
    happend that those arguments are separated with space char and this
    caused failed test because async_process.AsyncProcess() was not able
    to check that process is really active.
    
    This patch adds attempt to split cmdline arguments with space in case
    when split with '\0' returns only 1 element.
    
    Change-Id: I35d4c0e2cf56fc3ff15cf307aaf11a8ad8489e1f
    Closes-Bug: #1820870


** Changed in: neutron
       Status: In Progress => Fix Released

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https://bugs.launchpad.net/bugs/1820870

Title:
  Fullstack tests are failing because async_process is not started
  properly

Status in neutron:
  Fix Released

Bug description:
  Various fullstack tests are failing because of some issues with
  connection to rabbitmq.

  Example of such failure: http://logs.openstack.org/86/643486/8/check
  /neutron-fullstack/9fe648e/logs/testr_results.html.gz and log from
  agents: http://logs.openstack.org/86/643486/8/check/neutron-
  fullstack/9fe648e/logs/dsvm-fullstack-
  logs/TestDscpMarkingQoSLinuxbridge.test_dscp_marking_clean_port_removed
  /neutron-linuxbridge-agent--2019-03-19--
  12-12-33-931856.txt.gz?level=ERROR

  All agents in such case can't connect to rabbitmq, errors in logs are
  like:

  AMQP server on 240.44.122.1:5672 is unreachable: [Errno 101]
  ENETUNREACH. Trying again in 4 seconds.: OSError: [Errno 101]
  ENETUNREACH

  Logstash query:
  http://logstash.openstack.org/#dashboard/file/logstash.json?query=message%3A%5C%22ENETUNREACH%5C%22%20AND%20build_name%3A%5C
  %22neutron-fullstack%5C%22

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