Thread: [Php-java-bridge-users] using local unix sockets

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Hello,

I've got troubles getting the bridge running over a local unix socket
connection. I've installed the Debian package php-java-bridge_4.0.8a on
my Ubunto PC and configured the module in many ways already - including
autom. startup of a bridge-jvm with apache and also the standalone using
 the JavaBridge.jar.

My question:
* where do I set the classpath? When running the JavaBridge.jar? Or in
the java.ini, or in both?
* how can I enable local socket-only connections?

Thanks!

- --------------
Using the standalone JavaBridge.jar started with:

java -Dphp.java.bridge.threads=10
- -Dphp.java.bridge.base=/usr/lib/php5/20060613+lfs/
- -Djava.classpath=[my-classpath] -jar JavaBridge.jar
LOCAL:/tmp/php_java_sock 3 /var/log/php-java-bridge.log

and my java.ini:

extension = java.so
[java]
java.hosts     = 127.0.0.1:9267   ;;does not work without this actually
unused setting! - I only want to use the local socket!
java.socketname = /tmp/php_java_sock

the bridge doesn't use the socket.

I also have troubles with the classpath. I tried to add the classpath in
the java.ini with "java.classpath" and I tried to use -Djava.class.path
instead of -Djava.classpath... when running the jvm. If I specify the
classpath in the ini, phpinfo() shows it, but nevertheless I'm getting:
java.lang.ClassNotFoundException: Could not find
net.immofirst.maut.realestates.RealEstatesTest in java_require() path -
I'm sure that the standalone JavaBridge.jar also requires the CP but has
troubles getting it...

Thanks.

I would appreciate if you could help. Additionally I would interested in
your setup concerning performance. I think sockets should be many times
faster. How does persistent connections work? The initialisation is very
slow - I measured ~300ms/request, 95% goes into connection init - the
first java object instantiation is slow, a 2nd one is much faster...

Cheers,
Andy

- --
- ----------------------------------------------------------------------
Dipl.-Ing.(FH) Andreas Langegger
Institute for Applied Knowledge Processing
Johannes Kepler University Linz
A-4040 Linz, Altenberger Straße 69
> http://www.faw.at
> http://www.langegger.at
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Hi,


> I've got troubles getting the bridge running over a
> local unix socket

this was default until version 4.1.8. In version 4.1.8
we have temporarily switched it off, since 4.1.8 is
only a thin wrapper around the pure PHP PHP/Java
Bridge implementation "Java.inc".


> php-java-bridge_4.0.8a on
> my Ubunto PC and configured the module in many ways

Do you have the libnatcJavaBridge.so? This is the
library which implements unix domain socket
communication.  It depends on whether your Java 
supports JNI and whether or not your JVM can (and is
allowed to) load a native library.

If not, the bridge reverts to local TCP sockets or
named pipes. 

IMHO unix domain socket communication is obsolete on
modern operating systems. The only exception is
FreeBSD, due to a bug in FreeBSD's local TCP socket
implementation (Nagle's algorithm switched on per
default and PHP doesn't have a way to switch it off).


Regards,
Jost Boekemeier



      __________________________________  Die etwas anderen Infos rund um das Thema Reisen. BE A BETTER WELTENBUMMLER!  www.yahoo.de/clever

Hi,

thanks for the support. Will there be debian packages for the new 4.1.* 
versions also and is there support for 64-bit OS? I tried it on a 
Dual-Opteron with Ubuntu 64-bit and get this error when starting 
apache/php module:

PHP Warning:  PHP Startup: Unable to load dynamic library 
'/usr/lib/php5/20060613/java.so' - /usr/lib/php5/20060613/java.so: wrong 
ELF class: ELFCLASS32 in Unknown on line 0

Thanks & best regards,
Andy


php...@li... wrote:
> Hi,
> 
> 
>> I've got troubles getting the bridge running over a
>> local unix socket
> 
> this was default until version 4.1.8. In version 4.1.8
> we have temporarily switched it off, since 4.1.8 is
> only a thin wrapper around the pure PHP PHP/Java
> Bridge implementation "Java.inc".
> 
> 
>> php-java-bridge_4.0.8a on
>> my Ubunto PC and configured the module in many ways
> 
> Do you have the libnatcJavaBridge.so? This is the
> library which implements unix domain socket
> communication.  It depends on whether your Java 
> supports JNI and whether or not your JVM can (and is
> allowed to) load a native library.
> 
> If not, the bridge reverts to local TCP sockets or
> named pipes. 
> 
> IMHO unix domain socket communication is obsolete on
> modern operating systems. The only exception is
> FreeBSD, due to a bug in FreeBSD's local TCP socket
> implementation (Nagle's algorithm switched on per
> default and PHP doesn't have a way to switch it off).
> 
> 
> Regards,
> Jost Boekemeier
> 
> 
> 
>       __________________________________  Die etwas anderen Infos rund um das Thema Reisen. BE A BETTER WELTENBUMMLER!  www.yahoo.de/clever
> 
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-- 
----------------------------------------------------------------------
Dipl.-Ing.(FH) Andreas Langegger
Institute for Applied Knowledge Processing
Johannes Kepler University Linz
A-4040 Linz, Altenberger Straße 69
 > http://www.faw.at
 > http://www.langegger.at

Hi,

> PHP Warning:  PHP Startup: Unable to load dynamic library 
> '/usr/lib/php5/20060613/java.so' - /usr/lib/php5/20060613/java.so: wrong 
> ELF class: ELFCLASS32 in Unknown on line 0

I'd prefer to remove the C code entirely.

The PHP code is currently between 2 to 50 times slower than the old C code. 
But this will change with 4.2.0, which adds a client-side cache to Java.inc. 
With this cache the PHP code suddenly becomes 1.2 to 2 times faster than the C code.


Regards,
Jost Boekemeier



      __________________________________ Wissenswertes zum Thema PC, Zubehör oder Programme. BE A BETTER INTERNET-GURU!  www.yahoo.de/clever