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php-developer-list | 2000111

[PHP-DEV] PHP 4.0 Bug #6122 Updated: JVM starts only on 3 requests per httpd From: sniper <email protected>
Date: 11/08/00

ID: 6122
Updated by: sniper
Reported By: torben <email protected>
Status: Feedback
Bug Type: *General Issues
Assigned To:
Comments:

What's the status with this bug? Still valid?

--Jani

Previous Comments:
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[2000-08-13 20:34:19] rubys <email protected>
Three does seem like an abnormally low number... I will take a look into it.

The design of ext/java is *not* to create a new JVM per request, but to create a single JVM per thread (which in Apache's case is per process).

For scalability and robustness, I recommend sapi/servlet. I use Tomcat, which can be connected to Apache. In such a configuration, there will only every be a single JVM, with multiple requests being handled on separate threads.

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[2000-08-12 07:41:17] torben <email protected>
./configure --with-java --with-mysql --with-gd --with-apache=../apache_1.3.11 --enable-track-vars --enable-sysvshm --enable-bcmath --disable-debug --with-xml

Using Blackdown JDK 1.2.2

>From php.ini:
[java]
java.class.path=/usr/local/lib/php_java.jar
extension_dir=/usr/local/lib/php/extensions/no-debug-non-zts-20000809
extension=libphp_java.so
java.library.path=/usr/local/jdk1.2.2/jre/lib/i386:/usr/local/jdk1.2.2/jre/lib/i386/native_threads:/usr/local/jdk1.2.2/jre/lib/i386/classic:/usr/local/lib/php/extensions/no-debug-non-zts-20000809

Test script:
<?php
$system = new Java("java.lang.System");
print "Java version=".$system->getProperty("java.version")." n";
print "Java vendor=".$system->getProperty("java.vendor")." <p>nn";
print "OS=".$system->getProperty("os.name")." ".
$system->getProperty("os.version")." on ".
$system->getProperty("os.arch")." n";

$formatter = new Java("java.text.SimpleDateFormat",
                      "EEEE, MMMM dd, yyyy 'at' h:mm:ss a zzzz");

print $formatter->format(new Java("java.util.Date"))."n";
?>

The first 3 runs of the above work as expected. The fourth run gives the
error: Fatal error: Unable to create Java Virtual Machine in /home/torben/public_html/php3test/tj.html on line 2.

Setting MaxRequestsPerChild to < 3 in httpd.conf makes the problem go away, but this is obviously a suboptimal solution. :)

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Full Bug description available at: http://bugs.php.net/?id=6122 

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