On 9/27/06, Albert Poon <albert@xxxxxxxxxxxxxx> wrote:
I am sure PHP4 was compiled threadsafe, because I had to recompile it when I switched from prefork to worker. I recompiled the PHP4 together with all extensions too. I have to use worker mpm because the server has limited RAM...
It's not simply a question of compiling php4 as threadsafe. All the supporting libraries that are used by php must also be threadsafe. Here's what the php developers have to say on the subject: http://www.php.net/manual/en/faq.installation.php#faq.installation.apache2 That is not to say it is impossible to run php with worker, but if you haven't looked carefully at the thread-safety issue, then I certainly wouldn't recommend it. Stuck processes (especially when they are stuck in pthread mutexes) can most certainly be a symptom of thread-unsafe libraries. Joshua.
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