Re: [Wrapper-user] FW: Advice on configuring the Java Service Wrapper for I/O heavy application

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Hello again,

I tried your solution about removing the line, and instead I got this error,

STATUS | wrapper  | 2012/04/19 09:41:19 | Launching a JVM...
INFO   | jvm 5    | 2012/04/19 09:41:19 | java.lang.NoClassDefFoundError: org/tanukisoftware/wrapper/test/WrapperSimpleApp
INFO   | jvm 5    | 2012/04/19 09:41:19 | Caused by: java.lang.ClassNotFoundException: org.tanukisoftware.wrapper.test.WrapperSimpleApp
INFO   | jvm 5    | 2012/04/19 09:41:19 |  at java.net.URLClassLoader$1.run(Unknown Source)
INFO   | jvm 5    | 2012/04/19 09:41:19 |  at java.security.AccessController.doPrivileged(Native Method)
INFO   | jvm 5    | 2012/04/19 09:41:19 |  at java.net.URLClassLoader.findClass(Unknown Source)
INFO   | jvm 5    | 2012/04/19 09:41:19 |  at java.lang.ClassLoader.loadClass(Unknown Source)
INFO   | jvm 5    | 2012/04/19 09:41:19 |  at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
INFO   | jvm 5    | 2012/04/19 09:41:19 |  at java.lang.ClassLoader.loadClass(Unknown Source)
INFO   | jvm 5    | 2012/04/19 09:41:19 | Could not find the main class: org.tanukisoftware.wrapper.test.WrapperSimpleApp.  Program will exit.
ERROR  | wrapper  | 2012/04/19 09:41:19 | JVM exited while loading the application.
FATAL  | wrapper  | 2012/04/19 09:41:19 | There were 5 failed launches in a row, each lasting less than 300 seconds.  Giving up.
FATAL  | wrapper  | 2012/04/19 09:41:19 |   There may be a configuration problem: please check the logs.
STATUS | wrapper  | 2012/04/19 09:41:19 | <-- Wrapper Stopped
Now it seems like the program is not recognizing my program at all. My program is stored in an executable JAR file, so wouldn't I need this line wrapper.java.additional.2= -jar "./CenturaDataCollectionProgram.jar" to execute my program?

Sincerely,

Trever Hickey

________________________________
From: Christian Mueller [mailto:chr...@ta...]
Sent: Thursday, April 12, 2012 1:42 AM
To: wra...@li...
Subject: Re: [Wrapper-user] FW: Advice on configuring the Java Service Wrapper for I/O heavy application

Hello Trever,

thank you for your mail.

The reason, your JVM stops after 30 seconds is basically because of a small misconfiguration.

Please get rid of the following line in your conf file:
wrapper.java.additional.2= -jar "./CenturaDataCollectionProgram.jar"

Actually, with this line you kind of intercept the logic of how the JVM will interpret the command line....

Hope this helps you out.

Best Regards,
Christian

On Thu, Apr 12, 2012 at 4:27 AM, Hickey, Trever (INTERN) <Tre...@si...<mailto:Tre...@si...>> wrote:
Hi,

This is my first time trying to post here, so here it goes.

I am trying to turn my Java Application into a Windows service using Simple Server App class.

I am using

Java Service Wrapper Community Edition 32-bit 3.5.14
  Copyright (C) 1999-2011 Tanuki Software, Ltd. All Rights Reserved.
    http://wrapper.tanukisoftware.com

on Windows XP SP 3.

I have also included my log file and conf file.

The errors I think it most likely relates to are
ERROR  | wrapper  | 2012/04/11 11:37:40 | Startup failed: Timed out waiting for a signal from the JVM.
ADVICE | wrapper  | 2012/04/11 11:37:40 |
ADVICE | wrapper  | 2012/04/11 11:37:40 | ------------------------------------------------------------------------
ADVICE | wrapper  | 2012/04/11 11:37:40 | Advice:
ADVICE | wrapper  | 2012/04/11 11:37:40 | The Wrapper consists of a native component as well as a set of classes
ADVICE | wrapper  | 2012/04/11 11:37:40 | which run within the JVM that it launches.  The Java component of the
ADVICE | wrapper  | 2012/04/11 11:37:40 | Wrapper must be initialized promptly after the JVM is launched or the
ADVICE | wrapper  | 2012/04/11 11:37:40 | Wrapper will timeout, as just happened.  Most likely the main class
ADVICE | wrapper  | 2012/04/11 11:37:40 | specified in the Wrapper configuration file is not correctly initializing
ADVICE | wrapper  | 2012/04/11 11:37:40 | the Wrapper classes:
ADVICE | wrapper  | 2012/04/11 11:37:40 |     org.tanukisoftware.wrapper.test.WrapperSimpleApp
ADVICE | wrapper  | 2012/04/11 11:37:40 | While it is possible to do so manually, the Wrapper ships with helper
ADVICE | wrapper  | 2012/04/11 11:37:40 | classes to make this initialization processes automatic.
ADVICE | wrapper  | 2012/04/11 11:37:40 | Please review the integration section of the Wrapper's documentation
ADVICE | wrapper  | 2012/04/11 11:37:40 | for the various methods which can be employed to launch an application
ADVICE | wrapper  | 2012/04/11 11:37:40 | within the Wrapper:
ADVICE | wrapper  | 2012/04/11 11:37:40 |     http://wrapper.tanukisoftware.com/doc/english/integrate.html
ADVICE | wrapper  | 2012/04/11 11:37:40 | ------------------------------------------------------------------------
ADVICE | wrapper  | 2012/04/11 11:37:40 |

So far it looks like my application starts correctly, but terminates after about 30 seconds when it then opens a new JVM and repeats for 4 more times.

I believe this might be one of two issues. One my application stays constantly within my main method and doesn't exit out. I think there are a couple of parameters that can be set to handle this, but I haven't had much luck.

Second idea is my application is very I/O heavy. My program is constantly collecting data from a tool [using a special communication protocol] and writing it to a log file. Could the JVM be timing out because of the heavy I/O and if so, is their a way around this so my program can still be a Windows Service?

If anyone has any advice for handling this type of error I would appreciate it.

Thank you,

Trever

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If you have received this communication in error, please notify us at once so that we may take the appropriate action and avoid troubling you further.

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