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Upstream: abbreviated SSL handshake may interact badly with Nagle.

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This commit is contained in:
Ruslan Ermilov 2015-04-07 00:07:04 +03:00
parent 3f72e18908
commit 8c82b75127
1 changed files with 25 additions and 1 deletions
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26
src/http/ngx_http_upstream.c
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@ -1448,7 +1448,9 @@ static void
ngx_http_upstream_ssl_init_connection(ngx_http_request_t *r,
ngx_http_upstream_t *u, ngx_connection_t *c)
{
ngx_int_t rc;
int tcp_nodelay;
ngx_int_t rc;
ngx_http_core_loc_conf_t *clcf;
if (ngx_http_upstream_test_connect(c) != NGX_OK) {
ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR);
@ -1481,6 +1483,28 @@ ngx_http_upstream_ssl_init_connection(ngx_http_request_t *r,
NGX_HTTP_INTERNAL_SERVER_ERROR);
return;
}
/* abbreviated SSL handshake may interact badly with Nagle */
clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
if (clcf->tcp_nodelay && c->tcp_nodelay == NGX_TCP_NODELAY_UNSET) {
ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "tcp_nodelay");
tcp_nodelay = 1;
if (setsockopt(c->fd, IPPROTO_TCP, TCP_NODELAY,
(const void *) &tcp_nodelay, sizeof(int)) == -1)
{
ngx_connection_error(c, ngx_socket_errno,
"setsockopt(TCP_NODELAY) failed");
ngx_http_upstream_finalize_request(r, u,
NGX_HTTP_INTERNAL_SERVER_ERROR);
return;
}
c->tcp_nodelay = NGX_TCP_NODELAY_SET;
}
}
r->connection->log->action = "SSL handshaking to upstream";