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>Should i leave a space between APC shm_size and memory limit, such as shm_size 7GB and memory limit 8GB? yes php run suExec mode or nob-suExec mode or suExec Daemon mode ?

have you tried eAccelerator ? save opcode cache on disk instead of shared memory. but the disk storage at /dev/shm, so actually still in memory. it looks eAccelerator can't set 0 shared memory size, 1M is minimal per my past experience. APC / Xcacche / Zend OPcache all have their own SHM...

yes, it's the next release, not formally announce yet, should be soon.

exclude lsphp-5.3.27 from lfd or add lsphp-5.3.27 to whitelist of lfd it's normal that a lsphp-5.3.27 process use 366M memory.

I can reproduce this issue on lab. what's your license type ? 2-CPU or VPS or 8-CPU ... ?

great! thanks for update. particularly which binaries ?

most likely "PHP coding error" / code change about mis-config server, check if you added extension="apc.so" extension = "ffmpeg.so" extension = "memcache.so" .. etc recently

so php crashed many times. the main problem should be at php code side. with so many crash, why you still want to enable APC ? 1st priority is to reduce the crashes. will disable APC to stop or reduce crash ? "Oct 6 04:37:43 myusenamehere kernel: lsphp5[8873]: segfault at ffffffffffffffff...

>zend_extension="/usr/local/IonCube/ioncube_loader_lin_5.2.so" what's your php version ? php 5.2.x ?

the php extensions, I meant those not build in to lsphp5 please locate the current php.ini, then #grep extension /path/to/php.ini to see how many .so are loaded.

from the pstree output, php run in SuEXEC daemon mode as expected. >APC is still restarted because of webserver restart which because of >Max retries has been reached, 503! >oops! 503 Service Unavailable now should trouble-shoot the 503 error issue. when it's resolved, APC issue will...

the lsphp5 config is normal and ok. use cloudlinux or not ? please paste the "pstree -p" output under litespeed root process

cache function is available in 2-CPU and above license. you can upgrade/downgrade between 1 CPU and 2-CPU anytime: http://www.litespeedtech.com/support/wiki/doku.php?id=litespeed_wiki:license:upgrade_downgrade_license to see which license is better for your server. have you recorded...

maybe the server in your country has no good network connection with the location perform the test. http://tools.pingdom.com/fpt/ have 3 locations only at the time being to perform the tests, while http://www.webpagetest.org/ have much more test locations. however, no one in same...

gotroot ruleset. please refer https://www.litespeedtech.com/support/wiki/doku.php/litespeed_wiki:config:mod_security-compatibility

the default value has been optimized, usually you needn't change anything unless you've done enough tests on your particular server and pretty sure. please memo down what you've changed over the default value, it'll help you much to trouble shoot new issues. I took a quick look at lsws admin...

can you summary the changes you made since I tuned your server last time?

please check the lsapi version, open a phpinfo() page, check the value of "Server API". if it's still 5.5, need rebuild lsphp with latest 6.3

please refer http://www.litespeedtech.com/support/wiki/doku.php?id=litespeed_wiki:license:what_license_to_choose

is the server for shared hosting, run cPanel or dedicated server ? what php extension used ? you can enable core dump of lsphp so can debug it further. following is lsapi environment document: Configuration There are a few environment variables that can be tweaked to control the behavior of...