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Upstream: fixed u->conf->preserve_output (ticket #1519).

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Previously, ngx_http_upstream_process_header() might be called after
we've finished reading response headers and switched to a different read
event handler, leading to errors with gRPC proxying.  Additionally,
the u->conf->read_timeout timer might be re-armed during reading response
headers (while this is expected to be a single timeout on reading
the whole response header).
This commit is contained in:
Maxim Dounin 2018-04-05 16:56:12 +03:00
parent 923c9d5f3b
commit f9e43a3154
1 changed files with 12 additions and 6 deletions
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18
src/http/ngx_http_upstream.c
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@ -2013,8 +2013,6 @@ ngx_http_upstream_send_request(ngx_http_request_t *r, ngx_http_upstream_t *u,
/* rc == NGX_OK */
u->request_body_sent = 1;
if (c->write->timer_set) {
ngx_del_timer(c->write);
}
@ -2041,11 +2039,19 @@ ngx_http_upstream_send_request(ngx_http_request_t *r, ngx_http_upstream_t *u,
return;
}
ngx_add_timer(c->read, u->conf->read_timeout);
if (!u->request_body_sent) {
u->request_body_sent = 1;
if (c->read->ready) {
ngx_http_upstream_process_header(r, u);
return;
if (u->header_sent) {
return;
}
ngx_add_timer(c->read, u->conf->read_timeout);
if (c->read->ready) {
ngx_http_upstream_process_header(r, u);
return;
}
}
}