Hi, Anderson Guo, Thanks for your reply.
As you guess, my connection is a long-term connection and I hope it can recover as soon as the computer resumes from a standby mode. In standby mode, I think all programs and connections would go to sleep and also the heart-beat detection mechanism. I want to know if there are some parameters (e.g. mina parameters, java vm parameters, or os parameters), which calculate the time limit of the connection becoming invalid. Regards, Li > Subject: RE: About the time limit of connection keeps valid from standby mode > Date: Thu, 11 Sep 2008 13:50:05 +0800 > From: [EMAIL PROTECTED] > To: [email protected] > > I am not sure if I understand your issue, but I would like to share my > opinion with you about it: > > First of all, Mina is suitable for both long-term and short-term connection > oriented programming. Long-term connections means lifetime of the connection > will last from begin to end, usually the communication protocol should has > operations that responsible for session create, session keepalive, session > close. On the other hand, short-term connections, just like http connections, > created before http request is issued, till received corresponding http > response. (But for the purpose of performance, most programmer choose to open > keep-alive option to maintain the http connection between client and server). > > Second, network related exceptions really exists during the communication > phase, no matter what kind of connection manner you adoptm, so MINA provides > exception listener method to allow programmers to process exception condition > and recovery from it. Limited-retry , forget and continue are most popular > approaches to handle such cases. > > Finally, MINA is java-based network programming framework in nature, there is > no way to know whether computer system is waken up from sleep mode. So I > suggest the method to deal with connection invalid case is just encapsulate > your source code to detect network io exceptions and try to resend your > information again. > > BTW, you mentioned that you connection maybe last for about 10 minutes, > therefore I guess that program written by you is towards long-term > connection, so please also adopt heart-beat detection mechanism inside you > software. > > Best Regards > Anderson Guo > _________________________________________________________________ 【女性版ビリー？】話題の自宅燃焼系！美しく健康的なくびれをゲット！ http://clk.atdmt.com/GBL/go/112813569/direct/01/
