APC not storing cache IIS and PHP 5.1.2
August 9, 2006 - 05:48
APC not storing cache IIS and PHP 5.1.2
Hi all,
This seems to be the only place that I can find with a similar topics so I hope you can help.
I have installed APC on my Dev PC (Windows XP Pro - IIS 5) with the intention of installing on live server (windows server 2003 - IIS 6).
APC is installed now ok and running (PHPInfo output below) However if I use apc.php to view what has been cached it reports nothing except apc.php is cached, and apc.php is recached each time I access it... Basically its not storing the cached data.
I have checked my C:\WINDOWS\Temp\ folder and there are 3 files..
apc.lock.0 (0 bytes)
apc.lock.1 (0 bytes)
apc.lock.2 (0 bytes)
What am I doing wrong?
Thanks in advance
PHPInfo Output:
apc
APC Support enabled
Version 3.0.11-dev
MMAP Support Disabled
Revision $Revision: 3.90 $
Build Date May 4 2006 00:20:07
Directive Local Value Master Value
apc.cache_by_default On On
apc.enable_cli On On
apc.enabled On On
apc.file_update_protection 2 2
apc.filters no value no value
apc.gc_ttl 3600 3600
apc.max_file_size 1M 1M
apc.num_files_hint 1000 1000
apc.optimization Off Off
apc.shm_segments 1 1
apc.shm_size 128 128
apc.slam_defense Off Off
apc.stat On On
apc.ttl 3600 3600
apc.user_entries_hint 100 100
apc.user_ttl 3600 3600
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technoratiAugust 9, 2006 - 18:28
Hi Tim,
Not sure what the problem is, so here are some questions about the main steps. Maybe
someone with specific knowledge here could jump in.
1) I assume you have PHP working just fine?
2) You have PHP working using the DLL not the EXE (php.exe) ?
3) You are loading the APC extension in your php.ini ?
For details see:
APC install
4) You are using the appropriate version of APC for your version of PHP ?
The official versions of APC are:
1 php_apc.dll php-4.3.11 (4_3) 100 498 Compile 2006-05-04 16:05:00
2 php_apc.dll php-4.4.0 (4_4) 96 411 Compile 2005-10-10 21:10:25
3 php_apc.dll php-4.4.1 (4_4) 100 348 Compile 2006-05-04 16:05:04
4 php_apc.dll php-5.1.0 (5_1) 56 585 Compile 2005-11-08 15:11:47
5 php_apc.dll php-5.1.1 (5_1) 56 511 Compile 2006-01-23 11:01:24
6 php_apc.dll php-5.1.2 (5_1) 60 1,203 Compile 2006-05-03 22:05:20
<---(you should be using this one)
5) You are using the correct version of apc.php ?
If you are using PHP with the php.exe try using the the DLL method within IIS.
August 11, 2006 - 03:46
1) yes
2) using php.exe but just tried the dll (see below)
3) yes
4) yes
5) yes
When I use the dll APC disables it self even though i have enable = 1 in the ini file
phpinfo output with dll:
[apc]
APC Support disabled
Version 3.0.11-dev
MMAP Support Disabled
Revision $Revision: 3.90 $
Build Date May 4 2006 00:20:07
Also as I understand it, the DLL is less stable than the exe ?
Thanks for the help
August 11, 2006 - 05:40
Tim,
I think the instable reputation of PHP with the DLL is an "old thing". I've been using PHP with DLL and IIS since years with no particular issue. I do remember the warning about the DLL dating years back. In fact my most stable configuration has been IIS 5, PHP 4 with eAccelerator 0.9.3 (zero crash).
DLL is a lot faster. With the .exe you end up loading the full "PHP env" with each request...
Potential issues:
1) apc.shm_size 128
That value seems a little high try something like 24 to start.
On this server (the one running sitebuddy) a dual Xeon with 2GB Ram, the control panel behaves strangely if I try to pass the 64.
2) apc.enable_cli
Disable this for your testing with the DLL.
3) Check you permissions using FileMon:
How to use
FileMon under Windows
Joined: 2006-08-09