UDP associations' default timeout to be 15 seconds

ref #262
shadowsocks · May 24, 2020 · 98474e2 · 98474e2 · madeye · May 25, 2020
1 parent 1f75f7a
commit 98474e2
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/src/relay/udprelay/mod.rs b/src/relay/udprelay/mod.rs
@@ -71,4 +71,8 @@ mod utils;
 pub const MAXIMUM_UDP_PAYLOAD_SIZE: usize = 65536;
 
 /// Default association expire time
-pub const DEFAULT_TIMEOUT: Duration = Duration::from_secs(5 * 60);
+///
+/// FIXME: It is very hard to decide how long this value should be.
+/// For some usecases, clients may open a socket for sending just one packet,
+/// which will eventually cause too many *useless* associations are kept in the server.
+pub const DEFAULT_TIMEOUT: Duration = Duration::from_secs(15);