From: Andrew Yourtchenko <ayourtch@gmail.com>
Date: Mon, 5 Feb 2018 16:27:57 +0000 (+0100)
Subject: acl-plugin: an elog-based tracing implementation for troubleshooting the conn cleaner... 
X-Git-Tag: v18.04-rc1~357
X-Git-Url: https://gerrit.fd.io/r/gitweb?a=commitdiff_plain;h=1c6e5cf6905b2bd951982da9b712b13e2cb21295;hp=1c6e5cf6905b2bd951982da9b712b13e2cb21295;p=vpp.git

acl-plugin: an elog-based tracing implementation for troubleshooting the conn cleaner threads interactions

This replaces some of the early-stage commented-out printf()s with
an elog-based debug collector.

It is aimed to be "better than nothing" initial implementation to be available
in the field. It will be refined/updated based on use. This initial code
is focused on the main/worker threads interactions, hence uses just
the worker tracks.

This code adds a developer debug CLI "set acl-plugin session table event-trace 1",
which allows to gather the events pertaining to connection cleaning.
The CLI is deliberately not part of the online help, as the express
declaration that the semantics/trace levels, etc. are subject to change
without notice.

Change-Id: I3536309f737b73e50639cd5780822dcde667fc2c
Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com>
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