[MINOR] add the "nolinger" option to disable data lingering
The following patch will give the ability to tweak socket linger mode.
You can use this option with "option nolinger" inside fronted or backend
configuration declaration.
This will help in environments where lots of FIN_WAIT sockets are
encountered.
diff --git a/doc/haproxy-en.txt b/doc/haproxy-en.txt
index d18f59a..09d311e 100644
--- a/doc/haproxy-en.txt
+++ b/doc/haproxy-en.txt
@@ -1525,6 +1525,17 @@
option clitcpka # enables keep-alive only on client side
option srvtcpka # enables keep-alive only on server side
+4.1.4) TCP lingering
+--------------------
+It is possible to disable the system's lingering of data unacked by the client
+at the end of a session. This is sometimes required when haproxy is used as a
+front-end with lots of unreliable clients, and you observe thousands of sockets
+in the FIN_WAIT state on the machine. This may be used in a frontend to affect
+the client-side connection, as well as in a backend for the server-side
+connection :
+
+ option nolinger # disables data lingering
+
4.2) Event logging
------------------