[ovs-dev] [PATCH] ovn-controller: support configurable acl log file rate limit

[Ben Pfaff]

On Tue, Aug 29, 2017 at 03:27:53PM -0700, Han Zhou wrote:
> Add parameters in local Open_vSwitch DB external-ids for rate-
> limiting the log file writing:
>     ovn-acl-log-rl-rate
>     ovn-acl-log-rl-burst
> 
> Note: this has nothing to do with packet-in rate-limiting.
> Signed-off-by: Han Zhou <zhouhan at gmail.com>

Thanks for working on this.

Justin is probably the right person to review this, but here are a few
preliminary comments.

I'd prefer to see a new vlog_rate_limit_set() function, which could do
the actual work of changing the rate limit.  This is partly just to
improve the abstraction, but also partly because vlog_rate_limit
contains a mutex that should be taken whenever its data is accessed.  I
don't think that thread safety is a problem in this particular case, but
I don't know of a downside to being careful here.

The commit message doesn't explain the change to tests/automake.mk.

In acl-log.h, we normally write prototypes without a line break.