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[BUG] http: don't count req errors on client resets or t/o during keep-alive

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We must set the error flags when detecting that a client has reset
a connection or timed out while waiting for a new request on a keep-alive
connection, otherwise process_session() sets it itself and counts one
request error.

That explains why some sites were showing an increase in request errors
with the keep-alive.
This commit is contained in:
Willy Tarreau 2010-01-16 10:26:19 +01:00
parent 7340ca5a54
commit d3c343f8aa
1 changed files with 14 additions and 8 deletions
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22
src/proto_http.c
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@ -2209,8 +2209,11 @@ int http_wait_for_request(struct session *s, struct buffer *req, int an_bit)
* If not so, we check the FD and buffer states before leaving.
* A full request is indicated by the fact that we have seen
* the double LF/CRLF, so the state is >= HTTP_MSG_BODY. Invalid
* requests are checked first.
*
* requests are checked first. When waiting for a second request
* on a keep-alive session, if we encounter and error, close, t/o,
* we note the error in the session flags but don't set any state.
* Since the error will be noted there, it will not be counted by
* process_session() as a frontend error.
*/
if (unlikely(msg->msg_state < HTTP_MSG_BODY)) {
@ -2234,6 +2237,9 @@ int http_wait_for_request(struct session *s, struct buffer *req, int an_bit)
/* 2: have we encountered a read error ? */
else if (req->flags & BF_READ_ERROR) {
if (!(s->flags & SN_ERR_MASK))
s->flags |= SN_ERR_CLICL;
if (txn->flags & TX_WAIT_NEXT_RQ)
goto failed_keep_alive;
@ -2247,8 +2253,6 @@ int http_wait_for_request(struct session *s, struct buffer *req, int an_bit)
if (s->listener->counters)
s->listener->counters->failed_req++;
if (!(s->flags & SN_ERR_MASK))
s->flags |= SN_ERR_CLICL;
if (!(s->flags & SN_FINST_MASK))
s->flags |= SN_FINST_R;
return 0;
@ -2256,6 +2260,9 @@ int http_wait_for_request(struct session *s, struct buffer *req, int an_bit)
/* 3: has the read timeout expired ? */
else if (req->flags & BF_READ_TIMEOUT || tick_is_expired(req->analyse_exp, now_ms)) {
if (!(s->flags & SN_ERR_MASK))
s->flags |= SN_ERR_CLITO;
if (txn->flags & TX_WAIT_NEXT_RQ)
goto failed_keep_alive;
@ -2271,8 +2278,6 @@ int http_wait_for_request(struct session *s, struct buffer *req, int an_bit)
if (s->listener->counters)
s->listener->counters->failed_req++;
if (!(s->flags & SN_ERR_MASK))
s->flags |= SN_ERR_CLITO;
if (!(s->flags & SN_FINST_MASK))
s->flags |= SN_FINST_R;
return 0;
@ -2280,6 +2285,9 @@ int http_wait_for_request(struct session *s, struct buffer *req, int an_bit)
/* 4: have we encountered a close ? */
else if (req->flags & BF_SHUTR) {
if (!(s->flags & SN_ERR_MASK))
s->flags |= SN_ERR_CLICL;
if (txn->flags & TX_WAIT_NEXT_RQ)
goto failed_keep_alive;
@ -2294,8 +2302,6 @@ int http_wait_for_request(struct session *s, struct buffer *req, int an_bit)
if (s->listener->counters)
s->listener->counters->failed_req++;
if (!(s->flags & SN_ERR_MASK))
s->flags |= SN_ERR_CLICL;
if (!(s->flags & SN_FINST_MASK))
s->flags |= SN_FINST_R;
return 0;