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Posted to dev@mina.apache.org by Lenney <ji...@gmail.com> on 2007/10/30 03:50:51 UTC

A Serious Problem

Hi,every body,

Mybe it's the Java NIO's problem.

I deploy a program to a remote server, and run a client program to connect
to it. 

Then I disable my client's network ( remove the line from NIC of my
computer)，but now the server can not receive the session close event, so the
server can't remove the session from a HashMap( I define a HashMap to store
the login information).

Then I enable my client's network( reconnected the line to NIC of my
computer)，and try to login, due to login information are still stored in a
HashMap, so it fail.

How to solve this problem? 

I sorry that my English is not very good.

-- 
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Re: A Serious Problem

Posted by Lenney <ji...@gmail.com>.

Thanks very much for your reply. Now I know how to do.



elihusmails wrote:
> 
> pulling the plug can lead to undesirable results in all systems.
> 
> As for your login problem, my guess is that you will have to add some
> more logic to your login system to account for the fact that a user
> may log in twice from the same remote IP.  What I have done in the
> past is when a user logs in a second time, invalidate the first
> session and related information and use the second login.
> 
> 
> On 10/29/07, Lenney <ji...@gmail.com> wrote:
>>
>> Hi,every body,
>>
>> Mybe it's the Java NIO's problem.
>>
>> I deploy a program to a remote server, and run a client program to
>> connect
>> to it.
>>
>> Then I disable my client's network ( remove the line from NIC of my
>> computer)，but now the server can not receive the session close event, so
>> the
>> server can't remove the session from a HashMap( I define a HashMap to
>> store
>> the login information).
>>
>> Then I enable my client's network( reconnected the line to NIC of my
>> computer)，and try to login, due to login information are still stored in
>> a
>> HashMap, so it fail.
>>
>> How to solve this problem?
>>
>> I sorry that my English is not very good.
>>
>> --
>> View this message in context:
>> http://www.nabble.com/A-Serious-Problem-tf4716123s16868.html#a13481635
>> Sent from the Apache MINA Support Forum mailing list archive at
>> Nabble.com.
>>
>>
> 
> 
> -- 
> --------------------------------
> The adjuration to be "normal" seems shockingly repellent to me; I see
> neither hope nor comfort in sinking to that low level. I think it is
> ignorance that makes people think of abnormality only with horror and
> allows them to remain undismayed at the proximity of "normal" to
> average and mediocre. For surely anyone who achieves anything is,
> essentially, abnormal.
>      Dr. Karl Menninger
> 
> 

-- 
View this message in context: http://www.nabble.com/A-Serious-Problem-tf4716123s16868.html#a13481834
Sent from the Apache MINA Support Forum mailing list archive at Nabble.com.

Re: A Serious Problem

Posted by Mark <el...@gmail.com>.

pulling the plug can lead to undesirable results in all systems.

As for your login problem, my guess is that you will have to add some
more logic to your login system to account for the fact that a user
may log in twice from the same remote IP.  What I have done in the
past is when a user logs in a second time, invalidate the first
session and related information and use the second login.


On 10/29/07, Lenney <ji...@gmail.com> wrote:
>
> Hi,every body,
>
> Mybe it's the Java NIO's problem.
>
> I deploy a program to a remote server, and run a client program to connect
> to it.
>
> Then I disable my client's network ( remove the line from NIC of my
> computer)，but now the server can not receive the session close event, so the
> server can't remove the session from a HashMap( I define a HashMap to store
> the login information).
>
> Then I enable my client's network( reconnected the line to NIC of my
> computer)，and try to login, due to login information are still stored in a
> HashMap, so it fail.
>
> How to solve this problem?
>
> I sorry that my English is not very good.
>
> --
> View this message in context: http://www.nabble.com/A-Serious-Problem-tf4716123s16868.html#a13481635
> Sent from the Apache MINA Support Forum mailing list archive at Nabble.com.
>
>


-- 
--------------------------------
The adjuration to be "normal" seems shockingly repellent to me; I see
neither hope nor comfort in sinking to that low level. I think it is
ignorance that makes people think of abnormality only with horror and
allows them to remain undismayed at the proximity of "normal" to
average and mediocre. For surely anyone who achieves anything is,
essentially, abnormal.
     Dr. Karl Menninger