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.
Does that mean this message will periodically show up in the log
because of the large topology?
fbl
>
> Signed-off-by: Alex Wang <al...@nicira.com>
> ---
> lib/jsonrpc.c | 6 ++++++
> 1 file changed, 6 insertions(+)
>
> diff --git a/lib/jsonrpc.c b/lib/jsonrpc.c
> index 0841ad8..c0f80bc 100644
> --- a/lib/jsonrpc.c
> +++ b/lib/jsonrpc.c
> @@ -259,6 +259,12 @@ jsonrpc_send(struct jsonrpc *rpc, struct jsonrpc_msg
> *msg)
> list_push_back(&rpc->output, &buf->list_node);
> rpc->backlog += length;
>
> + if (list_size(&rpc->output) >= 50) {
> + VLOG_WARN("excessive sending backlog, jsonrpc: %s, num of msgs: "
> + "%"PRIuSIZE", backlog: %"PRIuSIZE".", rpc->name,
> + list_size(&rpc->output), rpc->backlog);
> + }
> +
> if (rpc->backlog == length) {
> jsonrpc_run(rpc);
> }
> --
> 1.7.9.5
>
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>
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