Unable to switch fuel rsyslog to udp

[Dmitriy Stremkovskiy]

Detailed bug description:
By default mos deployed cloud uses tcp for transporting logs from nodes to fuel master.
This may degrade performance of a cloud or even crush it.
Option in fuel ui does not switch it to udp. It switches proto for remote rsyslog server only.

Steps to reproduce:
Deploy MOS9.1 cloud, using remote rsyslog server in udp mode
tcpdump on admin interface on fuel node for messages coming to rsyslog server (usualy 514/tcp).
You should see packets.

Expected:
Another ui option, that switches to udp rsyslog messages from nodes to fuel node.
Logs delivered via udp not tcp.

Actual:
Logs are delivered via tcp not udp.

Workaround:
manual reconfiguration of fuel rsyslog and nodes to use udp transport.

Impact:
Degrade performance of a cloud or even crush it.

LAB:
MOS9.1 any + remote rsyslog server in udp mode

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/414948

[Michael Polenchuk (mpolenchuk)]

Use the following steps to change rsyslog transport once patch get merged:
# fuel --env X deployment default
# vi deployment_X/common.yaml
base_syslog:
  ...
  syslog_transport: udp

# fuel --env X deployment upload

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/newton
Review: https://review.openstack.org/415841

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/414948
Committed: https://git.openstack.org/cgit/openstack/fuel-library/commit/?id=792fb2af2298bc4f2b674aabaf658ef8c740fb87
Submitter: Jenkins
Branch: master

commit 792fb2af2298bc4f2b674aabaf658ef8c740fb87
Author: Michael Polenchuk <email address hidden>
Date: Mon Dec 26 16:08:23 2016 +0400

    Bring in syslog transport option

    Add option to set syslog transport by means of
    deployment facts modification:
      base_syslog:
        syslog_transport: udp | tcp

    DocImpact
    Closes-Bug: #1651437
    Change-Id: I944ca4617b0dc754188cf9835d590e0666d9f2bf

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/415841
Committed: https://git.openstack.org/cgit/openstack/fuel-library/commit/?id=0edcd49c2eaeab550b43db3efec3480d5183a800
Submitter: Jenkins
Branch: stable/newton

commit 0edcd49c2eaeab550b43db3efec3480d5183a800
Author: Michael Polenchuk <email address hidden>
Date: Mon Dec 26 16:08:23 2016 +0400

    Bring in syslog transport option

    Add option to set syslog transport by means of
    deployment facts modification:
      base_syslog:
        syslog_transport: udp | tcp

    DocImpact
    Closes-Bug: #1651437
    Change-Id: I944ca4617b0dc754188cf9835d590e0666d9f2bf

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/fuel-library 11.0.0.0rc1 release candidate.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/mitaka
Review: https://review.openstack.org/447003

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/447003
Committed: https://git.openstack.org/cgit/openstack/fuel-library/commit/?id=a1e3e168962fbfa26bd4187bf9c1447d2d59181c
Submitter: Jenkins
Branch: stable/mitaka

commit a1e3e168962fbfa26bd4187bf9c1447d2d59181c
Author: Michael Polenchuk <email address hidden>
Date: Mon Dec 26 16:08:23 2016 +0400

    Bring in syslog transport option

    Add option to set syslog transport by means of
    deployment facts modification:
      base_syslog:
        syslog_transport: udp | tcp

    DocImpact
    Depends-On: I19c307d795236e588eb99d7f81dcb10d79ff7da7
    Closes-Bug: #1651437
    Change-Id: I944ca4617b0dc754188cf9835d590e0666d9f2bf

[TatyanaGladysheva (tgladysheva)]

Verified on 9.2 + mu2 updates.

Actual results before and after the fix:
http://paste.openstack.org/show/609904/