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

Hi,

>PHP automatically terminates after 30 seconds. Please
consult your PHP
>documentation for details.

Thank you. You save me much work.

Regards,
Zoran

= = = Original message = = =

Hi,

> repository. As it is slow performance process it
takes a while to
 execute this method (at least
> 1 minute). I have checked many times, this method is
executed to the
 last line of code in Java

PHP automatically terminates after 30 seconds. Please
consult your PHP
 documentation for details.


Regards,
Jost Boekemeier



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hmm.. where is the attachment...

so the patch again:


diff -Nuar php-java-bridge-5.1.2-original/bind.c
php-java-bridge-5.1.2/bind.c
--- php-java-bridge-5.1.2-original/bind.c       2008-02-10
12:22:02.000000000 +0100
+++ php-java-bridge-5.1.2/bind.c        2008-03-13 17:43:05.000000000
+0100
@@ -1225,7 +1225,7 @@
        kill(EXT_GLOBAL(cfg)->cid, sig[i]);
   }

-  if((read(EXT_GLOBAL(cfg)->err, &err, sizeof err))!=sizeof err) err=0;
+  //if((read(EXT_GLOBAL(cfg)->err, &err, sizeof err))!=sizeof err)
err=0;
   //printf("VM terminated with code: %ld\n", err);
   close(EXT_GLOBAL(cfg)->err);
   EXT_GLOBAL(cfg)->err=0;






On Thu, 2008-03-13 at 20:06 +0100, php...@li... wrote:
> hi,
> 
> since a few days i reported a bug to apache httpd.
> https://issues.apache.org/bugzilla/show_bug.cgi?id=43966
> 
> after a backtrace seems this issue to be php-java-bridge related.
> 
> how to repeat:
> install apache >=2.2.6 (i tested with 2.2.8)
> install php 5.2.5 as module
> install php-java-bridge >=4.0.1
> enable php, javabridge
> enable the apache server-status module
> start apache
> 
> make a webserver stress wit ab
> ab -c 100 -n 20000 http://yourserver/some.jpg
> (some.jpg is any non php file)
> 
> open the server-status in your browser and reload it often.
> after 4-5 seconds you will see many connections in
> "C" Closing connetion status... (see apache bugreport)
> 
> The solution:
> Please look at the attached patch.
> i dont know what this line do, but if i remove it, everything works
> fine. no more sticking "C" processes..
> 
> please analyze this patch.
> 
> 
> thanks,
> 
> Attila Soki

hi,

since a few days i reported a bug to apache httpd.
https://issues.apache.org/bugzilla/show_bug.cgi?id=43966

after a backtrace seems this issue to be php-java-bridge related.

how to repeat:
install apache >=2.2.6 (i tested with 2.2.8)
install php 5.2.5 as module
install php-java-bridge >=4.0.1
enable php, javabridge
enable the apache server-status module
start apache

make a webserver stress wit ab
ab -c 100 -n 20000 http://yourserver/some.jpg
(some.jpg is any non php file)

open the server-status in your browser and reload it often.
after 4-5 seconds you will see many connections in
"C" Closing connetion status... (see apache bugreport)

The solution:
Please look at the attached patch.
i dont know what this line do, but if i remove it, everything works
fine. no more sticking "C" processes..

please analyze this patch.


thanks,

Attila Soki

Hi,

> repository. As it is slow performance process it takes a while to execute this method (at least
> 1 minute). I have checked many times, this method is executed to the last line of code in Java

PHP automatically terminates after 30 seconds. Please consult your PHP documentation for details.


Regards,
Jost Boekemeier



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Hi, 
   
  I have the problem when executing the following two lines of code:
   
  $d2rq->mapAllMoodleData();
  redirect("start_here_page.php");
   
  mapAllMoodleData() is Java method that performs mapping of Moodle database to Sesame repository. As it is slow performance process it takes a while to execute this method (at least 1 minute). I have checked many times, this method is executed to the last line of code in Java application and there is no exceptions. However, the second line of code is never executed.
   
  Could you suggest me where should I look for the problem?
   
  Regards
  Zoran

       
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Hi,

what I meant was, that you cannot have both, PHP running within Apache and a forward rule which
forward all requests to the Tomcat back end.

The easiest setup is to remove or to ignore mod_jk and mod_php and to forward all requests to the
back end using a mod_proxy rule, please see the "Load Balancing" and "Cluster" entries from our
FAQ.

The other option: Apache/PHP front-end, Tomcat or J2EE back end is described in the INSTALL.J2EE
document. Again, you can ignore or remove mod_jk and use a mod_proxy rule instead.

Regards,
Jost Boekemeier



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Hi,

> So it seems it is failing because of memory issues, right? Is there a
> way to configure the amount of memory for the JavaBridge?

No. :)

The JavaBridge is a normal J2EE application, which cannot control the amount of memory available
to Java. But the J2EE server or servlet engine can.

For tomcat the option is (example for Linux):

export JAVA_OPTS="-Xmx512M"


Regards,
Jost Boekemeier



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Hi,

I have been doing some stress-testing, sending simultaneously some
large files (2MB) to our Back-End through the JavaBridge, but they are
failing. Some of the errors I get back are:
protocol error: , Invalid document end at col 4. Check the back end
log for details.
or
protocol error: , Invalid document end at col 10. Check the back end
log for details.

In other cases it shows various errors like:
---------
Notice: fwrite() [function.fwrite]: send of 8192 bytes failed with
errno=10053 An established connection was aborted by the software in
your host machine. in Java.inc on line 815
protocol error: , Invalid document end at col 4. Check the back end
log for details.
Notice: fwrite() [function.fwrite]: send of 11 bytes failed with
errno=10053 An established connection was aborted by the software in
your host machine. in Java.inc on line 815
---------

Looking at the JavaBridge log file, it shows:
--------
Mar 13 15:54:37 VMBridge FATAL: An error occured:
java.lang.OutOfMemoryError: Java heap space
java.lang.OutOfMemoryError: Java heap space
	at java.lang.StringCoding$StringEncoder.encode(Unknown Source)
	at java.lang.StringCoding.encode(Unknown Source)
	at java.lang.String.getBytes(Unknown Source)
	at php.java.bridge.FileLogger.log(FileLogger.java:70)
	at php.java.bridge.FileLogger.log(FileLogger.java:109)
	at php.java.bridge.Util.println(Util.java:358)
	at php.java.bridge.JavaBridge.logDebug(JavaBridge.java:360)
	at php.java.bridge.Parser.CALL_BEGIN(Parser.java:132)
	at php.java.bridge.Parser.parse(Parser.java:195)
	at php.java.bridge.Request.handleRequest(Request.java:377)
	at php.java.bridge.Request.handleRequests(Request.java:485)
	at php.java.bridge.http.ContextRunner.run(ContextRunner.java:140)
	at php.java.bridge.ThreadPool$Delegate.run(ThreadPool.java:60)
--------

So it seems it is failing because of memory issues, right? Is there a
way to configure the amount of memory for the JavaBridge?

Thanks!


Antonio

How do I find out if I have mode_php or not?  In my apache's httpd.conf file I found only the following reference about PHP:
   
  AddType application/x-httpd-php .php
AddType application/x-httpd-php-source .phps
   
  My hosting provider's control mentioned following applications installed:
   
          jre  Java(TM) 2 Runtime Environment for CentOs 4 (for AMD64/Intel EM64T) EZ Template    jsdk  Java 2 SDK for CentOs 4 (for AMD64/Intel EM64T) EZ Template    mod_perl  Mod_perl for CentOs 4 (for AMD64/Intel EM64T) EZ Template    mod_ssl  Mod_ssl for CentOs 4 (for AMD64/Intel EM64T) template    php  PHP for CentOs 4 (for AMD64/Intel EM64T) EZ Template    plesk8  plesk8 for centos-4-x86_64 Virtuozzo template    plesk8-api  plesk8-api for centos-4-x86_64 Virtuozzo template    plesk8-backup  plesk8-backup for centos-4-x86_64 Virtuozzo template    plesk8-battlefield  plesk8-battlefield for centos-4-x86_64 Virtuozzo template    plesk8-bf2  plesk8-bf2 for centos-4-x86_64 Virtuozzo template    plesk8-cs-gs  plesk8-cs-gs for centos-4-x86_64 Virtuozzo template    plesk8-de-DE-locale  plesk8-de-DE-locale for centos-4-x86_64 Virtuozzo template    plesk8-fcgid  plesk8-fcgid for centos-4-x86_64 Virtuozzo template    plesk8-ja-JP-locale  plesk8-ja-JP-locale for centos-4-x86_64
 Virtuozzo template    plesk8-mailman  plesk8-mailman for centos-4-x86_64 Virtuozzo template    plesk8-miva  plesk8-miva for centos-4-x86_64 Virtuozzo template    plesk8-modules  plesk8-modules for centos-4-x86_64 Virtuozzo template    plesk8-ppwse  plesk8-ppwse for centos-4-x86_64 Virtuozzo template    plesk8-psa-fileserver  plesk8-psa-fileserver for centos-4-x86_64 Virtuozzo template    plesk8-psa-firewall  plesk8-psa-firewall for centos-4-x86_64 Virtuozzo template    plesk8-psa-vpn  plesk8-psa-vpn for centos-4-x86_64 Virtuozzo template    plesk8-spamassassin  plesk8-spamassassin for centos-4-x86_64 Virtuozzo template    plesk8-vault  plesk8-vault for centos-4-x86_64 Virtuozzo template    yum  YUM for CentOS template
   
  Do I have mod_php?
   
  Nimesh
  

php...@li... wrote:
  Hi,

> I have apache HTTPD sever that serve static HTML and PHP.
> I have Tomcat that serve Servlet Request (Java Application).

=> INSTALL.J2EE


> Apache talks to Tomcat through JK Connector.

Either remove mod_php or remove mod_jk. You cannot have both.


Regards,
Jost Boekemeier



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Hi Jost,

I set
public $__cancelProxyCreationTag = 0;
on line 1824; but it did not fix the error. I still see:
--------------
Strict Standards: Creating default object from empty value in
lib\Java.inc on line 1943
--------------

I think the problem is $result. Shouldn't line
1943: $result->__cancelProxyCreationTag = ++$client->cancelProxyCreationTag;
rather be:
1943: $this->__cancelProxyCreationTag = ++$client->cancelProxyCreationTag;
?

Regards,


Antonio



On Wed, Mar 12, 2008 at 11:37 AM,
<php...@li...> wrote:
> Hi,
>
>  thank you very much for your suggestions. In the next release we'll initialize
>
>   $__cancelProxyCreationTag
>
>  to 0.
>
>  Regards,
>  Jost Boekemeier
>
>
>
>
>       Lesen Sie Ihre E-Mails jetzt einfach von unterwegs.
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>
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>  php...@li...
>  https://lists.sourceforge.net/lists/listinfo/php-java-bridge-users
>

Hi,

> $d2rqF=$session->get("d2rq");
> if(!$d2rqF)

the !$varName works only for PHP values. Please see your PHP documentation for details.
According to the PHP documentation you should use is_null().

Note that is_null() cannot test whether or not the containing object is the Java NULL object or
not. You must convert the Java object into a PHP value first, for example with java_values() or
with a (string) cast.


Regards,
Jost Boekemeier



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