On 21.06.2013 09:49, Vlad Khorsun wrote: >> We are experiencing problems with unreceived db events. >> After some investigation found out that the connection to the event >> (aux) port from the client to the server is lost and the client never >> understands about that. >> Many routers and firewalls automatically close idle connections after a >> certain period of time and we suspect this is the reason which makes >> event connection to be lost sometimes. >> >> Is there a way to detect the lost connection or better prevent it from >> being closed. >> For the db connection we are successfully using DummyPacketInterval but >> it does not affect the event connection. >> >> The server is on Linux. >> /proc/sys/net/ipv4/tcp_keepalive_time is 7200 >> /proc/sys/net/ipv4/tcp_keepalive_intvl is 75 >> /proc/sys/net/ipv4/tcp_keepalive_probes is 9 >> RemoteAuxPort is set to permanent value. > It is always a good idea to tell exact build number of both client and > server. > And server architecture, of course. server LI-V6.3.2.26510 Firebird 2.5 client windows 2.5.2
I will change /proc/sys/net/ipv4/tcp_keepalive_time to 120 but understanding when a connection is dropped will be most reliable. Regards. Veselin Pavlov ------------------------------------------------------------------------------ This SF.net email is sponsored by Windows: Build for Windows Store. http://p.sf.net/sfu/windows-dev2dev Firebird-Devel mailing list, web interface at https://lists.sourceforge.net/lists/listinfo/firebird-devel
