11:03 p.m.
I've be doing some tests with WF 10.
I've noticed that are some connections being established intra-process to
and from ephemeral ports. This is without having any application deployed.
C:\>netstat -nao | findstr 28692
TCP 127.0.0.1:8280 0.0.0.0:0 LISTENING 28692
TCP 127.0.0.1:10190 0.0.0.0:0 LISTENING 28692
TCP 127.0.0.1:64778 127.0.0.1:64779 ESTABLISHED 28692
TCP 127.0.0.1:64779 127.0.0.1:64778 ESTABLISHED 28692
TCP 127.0.0.1:64780 127.0.0.1:64781 ESTABLISHED 28692
TCP 127.0.0.1:64781 127.0.0.1:64780 ESTABLISHED 28692
TCP 127.0.0.1:64782 127.0.0.1:64783 ESTABLISHED 28692
TCP 127.0.0.1:64783 127.0.0.1:64782 ESTABLISHED 28692
TCP 127.0.0.1:64784 127.0.0.1:64785 ESTABLISHED 28692
TCP 127.0.0.1:64785 127.0.0.1:64784 ESTABLISHED 28692
TCP 127.0.0.1:64786 127.0.0.1:64787 ESTABLISHED 28692
TCP 127.0.0.1:64787 127.0.0.1:64786 ESTABLISHED 28692
TCP 127.0.0.1:64788 127.0.0.1:64789 ESTABLISHED 28692
TCP 127.0.0.1:64789 127.0.0.1:64788 ESTABLISHED 28692
TCP 127.0.0.1:64790 127.0.0.1:64791 ESTABLISHED 28692
TCP 127.0.0.1:64791 127.0.0.1:64790 ESTABLISHED 28692
TCP 127.0.0.1:64792 127.0.0.1:64793 ESTABLISHED 28692
TCP 127.0.0.1:64793 127.0.0.1:64792 ESTABLISHED 28692
*Setup*
Wildfly 10 final (just downloaded / no applications deployed / port
offset:150)
Windows 7 64bits
Java 8u20
Can someone clarify why is this happening? Or provide some troubleshooting
tips?
*Connection pattern*
Using WinCap I was able to identify the communication pattern:
Client Connects [SYN]
Server Ack [SYN, ACK]
Client Ack [ACK]
Client Push [PSH] - It pushes 8 bytes (e.g., in hex, e6202552f2b95f6f)
Optionally the server pushes some data periodically (always the same)
Server Push [PSH] - It pushes 1 bytes (in hex, 1)
I've reported a problem related with this in the user's forum, but I still
don't have a answer.
Link: https://developer.jboss.org/message/953900
Thanks,
Luís M. Costa
11:49 p.m.
On Thu, Apr 7, 2016 at 4:03 PM, Luís M. Costa <luis.m.costa(a)gmail.com>
wrote:
*Setup*
Wildfly 10 final (just downloaded / no applications deployed / port
offset:150)
Windows 7 64bits
Java 8u20
Can someone clarify why is this happening? Or provide some troubleshooting
tips?
Are you starting a domain, or standalone?
I've reported a problem related with this in the user's
forum, but I still
don't have a answer.
Link: https://developer.jboss.org/message/953900
The forum post says you were using WF8.2.1-Final, is this happening with
both 10 and 8?
The first thing I'd try is make sure you're running the process as
administrator and see if the same thing occurs, perhaps it's a permissions
issue.
Ken
7:50 p.m.
Hi Ken,
I'm using standalone.
I've observed the problem both in WF 8.2.1.Final and WF 10.0.0.Final. The
type of connection, and communication pattern, is the same. This is
observable in Windows (I haven't tried any linux flavor) running as
Administrator or Windows Service. I've been using JDK 8u20, but it is also
observable with the latest JDK release.
I find this connections very intriguing, and I'm hopping to understand what
sub-system may be responsible, in order to deal with the problem I
described in the forum.
Thanks,
Luís M. Costa
On Fri, Apr 8, 2016 at 10:49 PM, Ken Wills <ken(a)zaptillion.net> wrote:
On Thu, Apr 7, 2016 at 4:03 PM, Luís M. Costa
<luis.m.costa(a)gmail.com>
wrote:
>
> *Setup*
> Wildfly 10 final (just downloaded / no applications deployed / port
> offset:150)
> Windows 7 64bits
> Java 8u20
>
> Can someone clarify why is this happening? Or provide some
> troubleshooting tips?
>
>
Are you starting a domain, or standalone?
> I've reported a problem related with this in the user's forum, but I
> still don't have a answer.
> Link: https://developer.jboss.org/message/953900
>
>
The forum post says you were using WF8.2.1-Final, is this happening with
both 10 and 8?
The first thing I'd try is make sure you're running the process as
administrator and see if the same thing occurs, perhaps it's a permissions
issue.
Ken
10:11 p.m.
Hi Luís,
On Sun, Apr 10, 2016 at 12:50 PM, Luís M. Costa <luis.m.costa(a)gmail.com>
wrote:
I'm using standalone.
Quick note, when I looked at the forum on Friday, it wasn't showing me any
responses to your original post, so sorry for the duplicate questions. I
see that there are a few responses prior.
What configuration are you using? standalone.xml? I've had a quick look on
linux and I don't see the same behavior, but perhaps I'm not using the same
config.
I've observed the problem both in WF 8.2.1.Final and WF
10.0.0.Final. The
type of connection, and communication pattern, is the same. This is
observable in Windows (I haven't tried any linux flavor) running as
Administrator or Windows Service. I've been using JDK 8u20, but it is also
observable with the latest JDK release.
I find this connections very intriguing, and I'm hopping to understand
what sub-system may be responsible, in order to deal with the problem I
described in the forum.
On Fri, Apr 8, 2016 at 10:49 PM, Ken Wills <ken(a)zaptillion.net>
wrote:
> On Thu, Apr 7, 2016 at 4:03 PM, Luís M. Costa <luis.m.costa(a)gmail.com>
> wrote:
>
>>
>> *Setup*
>> Wildfly 10 final (just downloaded / no applications deployed / port
>> offset:150)
>> Windows 7 64bits
>> Java 8u20
>>
>> Can someone clarify why is this happening? Or provide some
>> troubleshooting tips?
>>
>>
> Are you starting a domain, or standalone?
>
>
>> I've reported a problem related with this in the user's forum, but I
>> still don't have a answer.
>> Link: https://developer.jboss.org/message/953900
>>
>>
> The forum post says you were using WF8.2.1-Final, is this happening with
> both 10 and 8?
>
> The first thing I'd try is make sure you're running the process as
> administrator and see if the same thing occurs, perhaps it's a permissions
> issue.
>
> Ken
>
12:48 a.m.
Yes, I'm using standalone.xml.
To reproduce the odd behaviour, it's very simple (in windows, at least):
- Download WF 10.0.0.Final
- Execute "stanalone.bat"
Use netstat, and filter for PID, to see the unexpected connections.
If you dig further, like I did, and enable TRACE for XNIO, nothing related
with these connections shows up. Capturing the traffic (I use WinCap for
localhost captures in windows), you'll see the the pattern I referred
earlier.
On Sun, Apr 10, 2016 at 9:11 PM, Ken Wills <ken(a)zaptillion.net> wrote:
Hi Luís,
On Sun, Apr 10, 2016 at 12:50 PM, Luís M. Costa <luis.m.costa(a)gmail.com>
wrote:
>
> I'm using standalone.
>
>
Quick note, when I looked at the forum on Friday, it wasn't showing me any
responses to your original post, so sorry for the duplicate questions. I
see that there are a few responses prior.
What configuration are you using? standalone.xml? I've had a quick look on
linux and I don't see the same behavior, but perhaps I'm not using the same
config.
> I've observed the problem both in WF 8.2.1.Final and WF 10.0.0.Final. The
> type of connection, and communication pattern, is the same. This is
> observable in Windows (I haven't tried any linux flavor) running as
> Administrator or Windows Service. I've been using JDK 8u20, but it is also
> observable with the latest JDK release.
>
> I find this connections very intriguing, and I'm hopping to understand
> what sub-system may be responsible, in order to deal with the problem I
> described in the forum.
>
> On Fri, Apr 8, 2016 at 10:49 PM, Ken Wills <ken(a)zaptillion.net> wrote:
>
>> On Thu, Apr 7, 2016 at 4:03 PM, Luís M. Costa <luis.m.costa(a)gmail.com>
>> wrote:
>>
>>>
>>> *Setup*
>>> Wildfly 10 final (just downloaded / no applications deployed / port
>>> offset:150)
>>> Windows 7 64bits
>>> Java 8u20
>>>
>>> Can someone clarify why is this happening? Or provide some
>>> troubleshooting tips?
>>>
>>>
>> Are you starting a domain, or standalone?
>>
>>
>>> I've reported a problem related with this in the user's forum, but I
>>> still don't have a answer.
>>> Link: https://developer.jboss.org/message/953900
>>>
>>>
>> The forum post says you were using WF8.2.1-Final, is this happening with
>> both 10 and 8?
>>
>> The first thing I'd try is make sure you're running the process as
>> administrator and see if the same thing occurs, perhaps it's a permissions
>> issue.
>>
>> Ken
>>
>
>
2938
days inactive
2941
days old
4 comments
2 participants
participants (2)
-
Ken Wills -
Luís M. Costa