Comment 3 for bug 1711399

Reviewed: https://review.openstack.org/494634
Committed: https://git.openstack.org/cgit/openstack/kolla/commit/?id=83baad304d359e17a5be3ad1e92f7cd31dc129e0
Submitter: Jenkins
Branch: master

commit 83baad304d359e17a5be3ad1e92f7cd31dc129e0
Author: Bertrand Lallau <email address hidden>
Date: Thu Aug 17 18:20:04 2017 +0200

    Fluentd: add fluent-plugin-concat:1.0.0 gem

    Actual Fluentd config doesn't manage multiline log pattern like:

    2017-08-16 21:41:03.097 7 WARNING oslo_config.cfg [req-34ea3f23-f780-4059-b911-2788ea4af7b2 - - - - -] Option "firewall_driver" from group "DEFAULT" is deprecated for removal (
    nova-network is deprecated, as are any related configuration options.
    ). Its value may be silently ignored in the future.

    This log will generate 1 Fluentd records for each line (3 records),
    this is really a wrong behaviour, and made Kibana interface unusable.

    This patch add fluent-plugin-concat in order to concatenate multiline
    log separated in multiple events.

    Change-Id: I83e583605b49b7c421109d662de1291f38bd5c07
    Closes-Bug: #1711399