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BUG/MEDIUM: http: don't enable auto-close on the response side

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There is a bug where "option http-keep-alive" doesn't force a response
to stay in keep-alive if the server sends the FIN along with the response
on the second or subsequent response. The reason is that the auto-close
was forced enabled when recycling the HTTP transaction and it's never
disabled along the response processing chain before the SHUTR gets a
chance to be forwarded to the client side. The MSG_DONE state of the
HTTP response properly disables it but too late.

There's no more reason for enabling auto-close here, because either it
doesn't matter in non-keep-alive modes because the connection is closed,
or it is automatically enabled by process_stream() when it sees there's
no analyser on the stream.

This bug also affects 1.5 so a backport is desired.
This commit is contained in:
Willy Tarreau 2015-11-25 20:11:11 +01:00
parent 9579d12f2e
commit 714ea78c9a
1 changed files with 4 additions and 2 deletions
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6
src/proto_http.c
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@ -5272,11 +5272,13 @@ void http_end_txn_clean_session(struct stream *s)
s->res.flags |= CF_EXPECT_MORE;
}
/* we're removing the analysers, we MUST re-enable events detection */
/* we're removing the analysers, we MUST re-enable events detection.
* We don't enable close on the response channel since it's either
* already closed, or in keep-alive with an idle connection handler.
*/
channel_auto_read(&s->req);
channel_auto_close(&s->req);
channel_auto_read(&s->res);
channel_auto_close(&s->res);
/* we're in keep-alive with an idle connection, monitor it if not already done */
if (srv_conn && LIST_ISEMPTY(&srv_conn->list)) {