Bug #79003 [Opn->Ver]: Cannot use `exit` in preloading script
Edit report at https://bugs.php.net/bug.php?id=79003&edit=1
ID: 79003
Updated by: nikic@php.net
Reported by: webdevxp dot com at gmail dot com
Summary: Cannot use exit in preloading script
-Status: Open
+Status: Verified
Type: Bug
Package: opcache
PHP Version: 7.4.1
Block user comment: N
Private report: N
New Comment:
Can confirm that exit causes preloading to fail.
This is likely a "won't fix" for PHP 7.4. "exit" is essentially equivalent
to generating a fatal error and may leave the engine in an inconsistent state. There are plans to
make exit use stack unwinding in PHP 8, in which case we can also allow its use during preloading.
Previous Comments:
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[2019-12-20 12:43:01] bugreports at gmail dot com
drtechno what are you talking about?
you can't do exit() in 'opcache.preload' script, no matter the environment, it's
that easy, period
on the other hand you shouldn't need too, the preload script can be easily written in a way
that everything is wrapped in if/switch statements and is executed or not dpending on the
environment
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[2019-12-20 12:03:07] drtechno at mail dot com
There is a couple of things to look at to debug code 70 (resources expended before exit)
looking at a version's install:
pm = dynamic
pm.max_children = 5
pm.start_servers = 3
pm.min_spare_servers = 2
pm.max_spare_servers = 4
pm.max_requests = 200
pm.max_requests should be 500 to 800, not 200
If you have a decent amount of memory, try pm = static. As the memory management of dynamic mode is
not that great, and I think its still a little too new and buggy.
even though it should be set this way, in the config file:
daemonize = no
Also, it doesn't hurt to pass the switch on the command argument. Some say they have to because
if they don't sometimes its starts in deamon mode. The argument to pass with the command:
--nodaemonize
Just remember, this module eats ram like crazy. Especially on non ascii (and greater than 7bit)
character sets.
Its not a really good idea to run it as a daemon because its very power hungry nature, but if you do
I recommend a machine with no less than 16 core, with 256GB of ram.
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[2019-12-19 21:05:07] webdevxp dot com at gmail dot com
Description:
------------
When use exit to do clean exit (without argument or with 0 or with string), PHP-FPM
will exit with code 70.
Test script:
---------------
<?php
exit;
Expected result:
----------------
PHP-FPM continues normally.
Actual result:
--------------
PHP-FPM exits with code 70.
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Edit this bug report at https://bugs.php.net/bug.php?id=79003&edit=1
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