users@grizzly.java.net

Re: why there is an unknow connection when starting a nio server?

From: Ken--_at_newsgroupstats.hk <dragonken_at_gmail.com>
Date: Thu, 19 Jun 2008 23:51:12 -0700 (PDT)

Hi,

I feel very disappointed that they cannot help me to solve the issue but ask
me to buy a JAVA SE service plan instead. Even up to now, I have no idea
about the root cause.

http://forums.java.net/jive/thread.jspa?threadID=41517&tstart=0

I know there is a way to config tomcat / jetty on top grizzly. any chance to
config standalone jax-ws run on grizzly instead of using their buggy
lightweight http server?

Thanks and Regards,
Ken




Jeanfrancois Arcand-2 wrote:
>
> Salut,
>
> let me ping the NIO lead to see if there is a solution for that. I'm
> travelling right now but will try to have a response before the end of
> the week. Sorry for the delay.
>
> A+
>
> -- Jeanfrancois
>
>
>
> Ken--_at_newsgroupstats.hk wrote:
>> Sorry about that I have to reply this thread again. I have reported this
>> issue in jax-ws forum for a week but no one replied. (It show that
>> Grizlly
>> community is very helpful instead!)
>>
>> JAX-WS is under glassfish and pls suggest any channels that I can get
>> help
>> from for solving the problem.
>>
>> Regards,
>> Ken
>>
>>
>>
>> Oleksiy Stashok wrote:
>>> Hello Ken,
>>>
>>> AFAIK standalone jax-ws uses some JDK bundled lightweight web server,
>>> which is not Grizzly.
>>>
>>> Thanks.
>>>
>>> WBR,
>>> Alexey.
>>>
>>> On May 27, 2008, at 10:50 , Ken--_at_newsgroupstats.hk wrote:
>>>
>>>> I think standalone jax-ws is build from grizzly right? My problem is
>>>> invoking
>>>> an invalid wsdl link will make the server connection leak. I have
>>>> post the
>>>> issue here:
>>>>
>>>> http://forums.java.net/jive/thread.jspa?threadID=41517&tstart=0
>>>>
>>>> Thanks!
>>>>
>>>>
>>>>
>>>>
>>>> Ken--_at_newsgroupstats.hk wrote:
>>>>> Hi,
>>>>>
>>>>> It happen in one of our server with standard alone jax-ws enabled
>>>>> (running
>>>>> jax-ws without servlet container). The number of loopback
>>>>> connections will
>>>>> grow till 5000 connections under windows 2003 server.
>>>>>
>>>>> I have confirmed it today as the problem disappear when web service
>>>>> disabled.
>>>>>
>>>>> Would you pls tell me the detail of the bug?
>>>>>
>>>>> Regards,
>>>>> Ken
>>>>>
>>>>>
>>>>> Jeanfrancois Arcand-2 wrote:
>>>>>> Hi,
>>>>>>
>>>>>>
>>>>>> Ken--_at_newsgroupstats.hk wrote:
>>>>>>> I know this problem may not due to Grizzly but what I want to
>>>>>>> know is..
>>>>>>> whenever I start a nio server by using java.nio package, there
>>>>>>> exist a
>>>>>>> strange connection with no listening port! Please read the attached
>>>>>>> screen
>>>>>>> shot.
>>>>>> For Alan Bateman, NIO leads:
>>>>>>
>>>>>> A Selector on Windows has a loopback connection that is used for the
>>>>>> wakeup mechanism. Hence every Selector created will show what you
>>>>>> just
>>>>>> discovered.
>>>>>>
>>>>>>
>>>>>> It it a problem? The SelectorFactory initialize by default a pool of
>>>>>> Selector. We have fixed that recently. Which version of Grizzly
>>>>>> are you
>>>>>> using?
>>>>>>
>>>>>> Thanks
>>>>>>
>>>>>> -- Jeanfrancois
>>>>>>
>>>>>>> The original problem is, I have my own nio framework (developed
>>>>>>> in 3-4
>>>>>>> years
>>>>>>> ago). My server is running very well on first 3-4th day but after
>>>>>>> certain of
>>>>>>> time, the server will create many unknown connections like this:
>>>>>>>
>>>>>>> TCP 127.0.0.1:2408 127.0.0.1:2409 ESTABLISHED
>>>>>>> TCP 127.0.0.1:2409 127.0.0.1:2408 ESTABLISHED
>>>>>>> TCP 127.0.0.1:2410 127.0.0.1:2411 ESTABLISHED
>>>>>>> TCP 127.0.0.1:2411 127.0.0.1:2410 ESTABLISHED
>>>>>>> TCP 127.0.0.1:2412 127.0.0.1:2413 ESTABLISHED
>>>>>>> TCP 127.0.0.1:2413 127.0.0.1:2412 ESTABLISHED
>>>>>>>
>>>>>>> before the server go down, it around has 5000 pairs of this kind of
>>>>>>> connections(in windows 2003 server). That why I have to switch to
>>>>>>> grizzly.
>>>>>>>
>>>>>>> So, my question is what's those connection for? what are they?
>>>>>>>
>>>>>>> http://www.nabble.com/file/p17424006/2008-05-23_193552.gif
>>>>>>> 2008-05-23_193552.gif
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>>>>>>
>>>>>
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