APC and shm_size above 250MB throws error

[Sindre]

Hello,

I am having a problem with APC in LiteSpeed. If I set apc.shm_size to anything above 251M, the page will not load and core dumps are generated in /usr/local/lsws/fcgi-bin

Also, a lot of these entries show up in the error_log:

[27-Aug-2013 20:41:22 UTC] PHP Fatal error: PHP Startup: apc_mmap: mmap failed: in Unknown on line 0

Seems like some sys limit is kicking in, but can't figure out where to find it. I am running CloudLinux with CageFS and LiteSpeed with suEXEC.

Any help will be appreciated.

 

[mistwang]

http://www.litespeedtech.com/docs/webserver/config/extapps/#memSoftLimit

 

[Sindre]

Thanks, but I don't think that is the problem. Memory soft limit is already set to 450M.

 

[mistwang]

there is a memory limit in php.ini as well.

 

[Sindre]

PHP memory_limit is set to 1024M

 

[NiteWave]

see if following directive helps:
apc.mmap_file_mask = /tmp/apc.XXXXXX
(add to php.ini)

Memory soft limit is already set to 450M.

please try to raise the soft/hard limit anyway, see if any difference.

 

[NiteWave]

also, please check LVE limit, if it's big enough.

 

[Sindre]

see if following directive helps:
apc.mmap_file_mask = /tmp/apc.XXXXXX
(add to php.ini)


please try to raise the soft/hard limit anyway, see if any difference.

Thanks. I removed the soft/hard limit completely (will be limited by LVE anyway), and guess what; it worked Strange...

 

[mistwang]

So, you removed soft/hard memory limit for lsphp5 extapp ?

 

[Sindre]

Correct. Even though it was already set much higher than 256MB.