[ovs-dev] [PATCH] jsonrpc: Warn about excessive sending backlog.

[Ben Pfaff]

On Thu, Sep 18, 2014 at 11:37:08AM -0700, Alex Wang wrote:
> When ovs is running with large topology (e.g. large number of
> interfaces), the stats and status update to ovsdb become huge and
> normally require multiple run of ovsdb jsonrpc message processing
> loop to consume.  Also, this could cause jsonrpc messages backlogged
> in ovs.
> 
> This commit adds a warning message to warn the excessive backlog
> for jsonrpc.
> 
> Signed-off-by: Alex Wang <alexw at nicira.com>

Is this the correct way to do it?  I would have thought that as long as
there are any backlogged stats messages, ovs-vswitchd should defer
sending any further stats updates until the backlog clears.