Hello, I found a bug, the stub_status module shows connection and waiting is only increase without decrease. But in fact, system connection haven't such many.
Here is the trend chart
http://m-b.cc/tmp/bugs.png
Maxim Dounin Wrote:
-------------------------------------------------------
> Hello!
>
> On Wed, Aug 24, 2011 at 01:11:43PM -0400,
> magicbear wrote:
>
> > Thanks for your hard work, I have found that if
> using https backend, it
> > won't work, server will direct close the
> connection.
> >
> > curl --head 'http://localhost/track.js'
> > curl: (52) Empty reply from server
>
> Yes, thank you for report.
>
> Keeping https connections will require additional
> support both in
> nginx core and upstream keepalive module. You may
> try the
> attached patches, also available here:
>
> http://mdounin.ru/files/patch-nginx-keepalive-http
> s.txt
> http://mdounin.ru/files/patch-nginx-keepalive-http
> s-module.txt
>
> The first one is for nginx itself, should be
> applied after
> keepalive patch.
>
> The second one (actually, two grouped in one file)
> for upstream
> keepalive module.
>
> Maxim Dounin
> # HG changeset patch
> # User Maxim Dounin <mdounin@mdounin.ru>
> # Date 1314229425 -14400
> # Node ID ac0a7fd4de491e64d42f218691b681f7b3fa931b
> # Parent e865cb2cc06a88c01a439bfdd0d0d7dec54713f0
> Upstream: create separate pool for peer
> connections.
>
> This is required to support persistant https
> connections as various ssl
> structures are allocated from connection's pool.
>
> diff --git a/src/http/ngx_http_upstream.c
> b/src/http/ngx_http_upstream.c
> --- a/src/http/ngx_http_upstream.c
> +++ b/src/http/ngx_http_upstream.c
> @@ -1146,8 +1146,17 @@
> ngx_http_upstream_connect(ngx_http_reque
> c->sendfile &= r->connection->sendfile;
> u->output.sendfile = c->sendfile;
>
> - c->pool = r->pool;
> + if (c->pool == NULL) {
> + c->pool = ngx_create_pool(128,
> r->connection->log);
> + if (c->pool == NULL) {
> + ngx_http_upstream_finalize_request(r,
> u,
> +
> NGX_HTTP_INTERNAL_SERVER_ERROR);
> + return;
> + }
> + }
> +
> c->log = r->connection->log;
> + c->pool->log = c->log;
> c->read->log = c->log;
> c->write->log = c->log;
>
> @@ -2912,6 +2921,7 @@
> ngx_http_upstream_next(ngx_http_request_
> }
> #endif
>
> +
> ngx_destroy_pool(u->peer.connection->pool);
> ngx_close_connection(u->peer.connection);
> }
>
> @@ -3006,6 +3016,7 @@
> ngx_http_upstream_finalize_request(ngx_h
> "close http upstream
> connection: %d",
> u->peer.connection->fd);
>
> +
> ngx_destroy_pool(u->peer.connection->pool);
> ngx_close_connection(u->peer.connection);
> }
>
> # HG changeset patch
> # User Maxim Dounin <mdounin@mdounin.ru>
> # Date 1314229646 -14400
> # Node ID 67b12141506c6be2115b6b0aa151068188b97975
> # Parent f3b50effc1d476b040908700bb772197d31fbd80
> Keepalive: set_session and save_session callbacks.
>
> diff --git a/ngx_http_upstream_keepalive_module.c
> b/ngx_http_upstream_keepalive_module.c
> --- a/ngx_http_upstream_keepalive_module.c
> +++ b/ngx_http_upstream_keepalive_module.c
> @@ -32,6 +32,11 @@ typedef struct {
> ngx_event_get_peer_pt
> original_get_peer;
> ngx_event_free_peer_pt
> original_free_peer;
>
> +#if (NGX_HTTP_SSL)
> + ngx_event_set_peer_session_pt
> original_set_session;
> + ngx_event_save_peer_session_pt
> original_save_session;
> +#endif
> +
> ngx_uint_t failed;
> /* unsigned:1 */
>
> } ngx_http_upstream_keepalive_peer_data_t;
> @@ -59,6 +64,13 @@ static void
> ngx_http_upstream_free_keepa
> static void
> ngx_http_upstream_keepalive_dummy_handler(ngx_even
> t_t *ev);
> static void
> ngx_http_upstream_keepalive_close_handler(ngx_even
> t_t *ev);
>
> +#if (NGX_HTTP_SSL)
> +static ngx_int_t
> ngx_http_upstream_keepalive_set_session(
> + ngx_peer_connection_t *pc, void *data);
> +static void
> ngx_http_upstream_keepalive_save_session(ngx_peer_
> connection_t *pc,
> + void *data);
> +#endif
> +
> static void
> *ngx_http_upstream_keepalive_create_conf(ngx_conf_
> t *cf);
> static char
> *ngx_http_upstream_keepalive(ngx_conf_t *cf,
> ngx_command_t *cmd,
> void *conf);
> @@ -182,6 +194,13 @@
> ngx_http_upstream_init_keepalive_peer(ng
> r->upstream->peer.get =
> ngx_http_upstream_get_keepalive_peer;
> r->upstream->peer.free =
> ngx_http_upstream_free_keepalive_peer;
>
> +#if (NGX_HTTP_SSL)
> + kp->original_set_session =
> r->upstream->peer.set_session;
> + kp->original_save_session =
> r->upstream->peer.save_session;
> + r->upstream->peer.set_session =
> ngx_http_upstream_keepalive_set_session;
> + r->upstream->peer.save_session =
> ngx_http_upstream_keepalive_save_session;
> +#endif
> +
> return NGX_OK;
> }
>
> @@ -423,6 +442,29 @@ close:
> }
>
>
> +#if (NGX_HTTP_SSL)
> +
> +static ngx_int_t
> +ngx_http_upstream_keepalive_set_session(ngx_peer_
> connection_t *pc, void *data)
> +{
> + ngx_http_upstream_keepalive_peer_data_t *kp
> = data;
> +
> + return kp->original_set_session(pc,
> kp->data);
> +}
> +
> +
> +static void
> +ngx_http_upstream_keepalive_save_session(ngx_peer
> _connection_t *pc, void *data)
> +{
> + ngx_http_upstream_keepalive_peer_data_t *kp
> = data;
> +
> + kp->original_save_session(pc, kp->data);
> + return;
> +}
> +
> +#endif
> +
> +
> static void *
> ngx_http_upstream_keepalive_create_conf(ngx_conf_
> t *cf)
> {
> # HG changeset patch
> # User Maxim Dounin <mdounin@mdounin.ru>
> # Date 1314229663 -14400
> # Node ID 3affea1af30649ac1934b01ab30d175abd4fb3be
> # Parent 67b12141506c6be2115b6b0aa151068188b97975
> Keepalive: destroy connection pool.
>
> diff --git a/ngx_http_upstream_keepalive_module.c
> b/ngx_http_upstream_keepalive_module.c
> --- a/ngx_http_upstream_keepalive_module.c
> +++ b/ngx_http_upstream_keepalive_module.c
> @@ -353,6 +353,7 @@
> ngx_http_upstream_free_keepalive_peer(ng
> item = ngx_queue_data(q,
> ngx_http_upstream_keepalive_cache_t,
> queue);
>
> +
> ngx_destroy_pool(item->connection->pool);
>
> ngx_close_connection(item->connection);
>
> } else {
> @@ -437,6 +438,7 @@ close:
> conf = item->conf;
>
> ngx_queue_remove(&item->queue);
> + ngx_destroy_pool(item->connection->pool);
> ngx_close_connection(item->connection);
> ngx_queue_insert_head(&conf->free,
> &item->queue);
> }
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