php-java-bridge-users Mailing List for PHP/Java Bridge

Hoy en la tarde, php...@li... dijo:
> Ayer en la tarde, php...@li... dijo:
>> Hi,
>>
>> do you use the dynamic loader to load the classes?
>>
>> We've had two tickets with similar problems (class
>> cast exception because the proxies were assignment
>> incompatible to each other). Both of them were closed
>> because the users provided no feedback. -- One user
>> reported that the suggested workaround (to move the
>> libraries to the global classpath) worked, after that
>> he was unable to reproduce the original problem.

[...]

> I'll try with the workaround and report back.

No crahes after one hour of requests (w/ 1-minute delays). Seems pretty
rock solid to me :)

I'll go that route for now. Thanks!

-- 
Guti
Real Programmers don't comment their code.  If it was hard to write, it 
should be hard to understand and even harder to modify.

Hi Jonathan,

> with Java.  After some time passes, with zero
> activity on the server,
> javaw's CPU usage holds steady at a consistent 50%+.

do you run javaw as a sub process of apache?

If so, can you please change the php.ini entry

java.java=javaw

to 

java.java=java

and then open the services dialog and allow the apache
service to open a console window. The procedure is
described here:

http://www.adobe.com/cfusion/knowledgebase/index.cfm?id=tn_18120

When you restart the apache service, a console window
appears. When the CPU usage jumps to 50% please type
Ctrl+Break simultaneously. It will create the thread
dump in a file called {server-name}-out.log or
{server-name}-err.log file, depending on the version
of JDK/JRE you are using.

The thread dump will show the thread name which causes
the trouble. My guess is that the thread is some Java
manager thread which tries to respond to some
unexpected events. -- Apache sometime has the habit to
send out a signal to all of its children. 

If that's the case starting Java outside of the Apache
domain should solve the problem.

Anyway, when you have the thread dump please open a
ticket (please use
http://sourceforge.net/tracker/?func=add&group_id=117793&atid=679233)
and attach the dump to this ticket.

Thank you very much for reporting this problem!


Regards,
Jost Boekemeier




		
___________________________________________________________ 
Telefonate ohne weitere Kosten vom PC zum PC: http://messenger.yahoo.de

Ayer en la tarde, php...@li... dijo:
> Hi,
>
> do you use the dynamic loader to load the classes?
>
> We've had two tickets with similar problems (class
> cast exception because the proxies were assignment
> incompatible to each other). Both of them were closed
> because the users provided no feedback. -- One user
> reported that the suggested workaround (to move the
> libraries to the global classpath) worked, after that
> he was unable to reproduce the original problem.
>
> However, I am quite sure there's still a bug in our
> dynamic loader when dynamic proxies are used. 

Yes, as a matter of fact I load jar files on demand; this is the
relevant part of the code (removed for brevity on previous post):

,----
| $cwd = dirname(__FILE__);
| 
| $jars = array(
|               "$cwd/SpringDemo/",
|               "$cwd/jars/spring-aop.jar",
|               "$cwd/jars/spring-beans.jar",
|               "$cwd/jars/spring-context.jar",
|               "$cwd/jars/spring-core.jar",
|               "$cwd/jars/spring-dao.jar",
|               "$cwd/jars/spring.jar",
|               "$cwd/jars/spring-jdbc.jar",
|               "$cwd/jars/spring-remoting.jar",
|               "$cwd/jars/spring-web.jar",
|               "/home/staff/crgutier/jars/lib/j2ee/servlet-api.jar",
|               "$cwd/jars/lib/jakarta-commons/commons-logging.jar",
|               "$cwd/jars/lib/jakarta-commons/commons-httpclient.jar",
|               "$cwd/jars/lib/log4j/log4j-1.2.9.jar",
|               );
| 
| 
| java_require(join(";", $jars));
`----

I'll try with the workaround and report back.

> Can you please run the server with:
>
> -Dphp.java.bridge.default_log_file=/tmp/javabridge.log
> -Dphp.java.bridge.default_log_level=6
>
> open a ticket (please use
> http://sourceforge.net/tracker/?func=add&group_id=117793&atid=679233)
> and attach the full log at the end of the ticket?
>
> The log file will be large, but it should contain
> information why our dynamic loader has dropped the
> proxy even though spring still keeps a reference to
> it.

Just did. Thanks for your help.

-- 
Guti
cat /dev/coffee | /dev/cup | /dev/mouth | /dev/nose > /dev/keyboard

I've noticed some strange performance issues on my development machine
while using the JavaBridge... specs:

Windows XP Professional
Apache 2.0.55
PHP 5.1.2
PHP-Java Bridge 3.0.7a
Java JDK 1.5.0_01

When I start Apache up fresh, the javaw process that's spawned stays at
~0% CPU usage, spiking momentarily whenever my PHP code does something
with Java.  After some time passes, with zero activity on the server,
javaw's CPU usage holds steady at a consistent 50%+.  I haven't the
foggiest idea where to begin looking for answers, so any help is
appreciated.  (I'm happy to provide additional detail if needed!)

Best,
Jonathan


=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
Jonathan Abbett
Children's Hospital Informatics Program
1 Autumn Street, Fifth Floor
Boston, MA 02215
617-355-8334
jon...@ch...
http://www.chip.org