Re: [Wrapper-user] Checking if service is alive

[<San...@DM...>]

I have test code below with the default test application and works fine=
.

Then I think there is something wrong in my code.

Now I know that there is possible pinging a service.

Thanks a lot.


Santiago Mart=EDn Pascual

Email: san...@dm....
Tel=E9fono: 91 567 94 00.
Fax: 91 567 94 01.

DMR Consulting.
Paseo de la Castellana, 141
Edificio Cuzco IV, planta 9.
28046 Madrid.
Espa=F1a.

http://www.spain.dmr.com



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                      Leif Mortenson                                   =
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There is nothing specific to the Wrapper that should be causing any
problems with the creation of sockets.  Can you answer a few questions?=


1) What platform / version of java are using?

2) What version of the Wrapper?

3) What is the exception you are getting?  (full stack trace)  Your cod=
e
does not display the stack trace.  I would modify it to look for one or=

more
specific exception rather than any exception as that code will mask
unrelated problems such as NullPointerExceptions etc.  If your p_host
variable was null for example you would get a message: "not responding"=


4) Is the code below running in a JVM controlled by the Wrapper,
or is the remote machine controlled by the JVM?

The only socket related difference between running with and without the=

Wrapper is the socket that is being allocated to communicate between
the JVM and the Wrapper.  It is configured using the wrapper.port
property in the wrapper.conf file.

Cheers,
Leif

San...@DM... wrote:

>I have a service that launch a java app, sometimes this app could cras=
h,
>then the service goes down.
>
>I have another java service that check if some services are alive. Thi=
s
>service runs code below to check services status:
>
>      private boolean ping(String p_host, String p_port)
>      {
>            int count =3D 0;
>            int portInt =3D Integer.parseInt(p_port);
>
>            m_log.log(m_sCabeceraLogs,"Pinging "+ p_port+ " ...");
>
>            while (count < 10) {
>                  try {
>                        Socket s1 =3D new Socket(p_host, portInt);
>                        s1.close();
>                        m_log.log(m_sCabeceraLogs,p_port+ " is running=
!");
>                        break;
>                  } catch (Exception e) {
>                        m_log.log(m_sCabeceraLogs,p_port+ " not respon=
ding
>.. retrying");
>                        count++;
>                  }
>                  try {
>                        Thread.currentThread().sleep(1000);
>                  } catch (Exception e) {};
>            }
>
>            if (count =3D=3D 10) {
>                  return false;
>            }else
>            {
>                  return true;
>            }
>      }
>
>This code works fine this other services, but with services that uses
>wrapper, sentence "Socket s1 =3D new Socket(p_host, portInt);" throws =
a
>exception.
>
>How can I tell wrapper that accepts this calls?
>
>
>
>
>
>
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>




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