David Rosenstrauch a écrit :
On 01/11/2010 06:32 PM, Emmanuel Lecharny wrote:
David Rosenstrauch a écrit :
May be checking for the socket idleness every X minutes could help
to close the orphan sockets ?
I'm not clear on what you mean by this. How would I do a check like
that in MINA? Are you suggesting adding some sort of ping/pong
logic? If not, then perhaps you could point me to some sample code
that illustrates what you mean?
You can a SessionIdle event that can be used for that purpose. A
session is considered Idle if nothing happened for it during one
second, and the event is generated. I guess you can count the number
of idle event you received up to a point you consider the session
dead. Also you can consider that if all the sessions has received a
Idle state, then something is probably going wrong.
You can set the expected maximum idle time for a session using
SessionConfig.setIdleTime( IdleStatus, long) (IdleStatus is used for
READ, WRITE or BOTH)
Btw, some interesting reading :
http://mindprod.com/jgloss/socket.html#DISCONNECT
Helpful pointers. Thanks Emmanuel.
I also noticed MINA's KeepAliveFilter. Perhaps that might be some
help here too.
yes, probably, as if you try to write to a dead client, you'll get an
exception.
