ngx_http_upstream_keepalive_set_session 68 src/http/modules/ngx_http_upstream_keepalive_module.c static ngx_int_t ngx_http_upstream_keepalive_set_session( ngx_http_upstream_keepalive_set_session 200 src/http/modules/ngx_http_upstream_keepalive_module.c r->upstream->peer.set_session = ngx_http_upstream_keepalive_set_session;