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--- litespeed_wiki:php:concurrency [2018/09/19 18:43]
Michael Alegre [PHP Non-suEXEC Max Connections]
+++ litespeed_wiki:php:concurrency [2019/03/29 19:27]
Lisa Clarke Proofreading
@@ Line 10: / Line 10: @@
 This wiki will go over the ways to control concurrency with different PHP LSAPI setups.
-====== PHP suEXEC Max Connections ======
+===== PHP suEXEC Max Connections =====
 LSWS offers three different PHP suEXEC modes: [[https://www.litespeedtech.com/docs/litespeed-sapi/php-lsapi/suexec-worker|Worker]], [[https://www.litespeedtech.com/docs/litespeed-sapi/php-lsapi/suexec-daemon-mode|Daemon]], and [[https://www.litespeedtech.com/docs/litespeed-sapi/php-lsapi/suexec-processgroup|ProcessGroup]].
@@ Line 27: / Line 27: @@
     LSPHP_Workers 100
   </IfModule>
-====== PHP Non-suEXEC Max Connections ======
+===== PHP Non-suEXEC Max Connections =====
 LSWS offers two non-suEXEC PHP modes: Worker and ProcessGroup.
@@ Line 38: / Line 38: @@
   - ProcessGroup: In ProcessGroup, the Instances setting must be set to 1. Control the number of processes instead with the [[https://www.litespeedtech.com/docs/litespeed-sapi/php-lsapi/configuration|PHP_LSAPI_CHILDREN environment variable]].
-====== Which setup am I using? ======
+===== Determining Which PHP Setup is in Use =====
 Some users may be confused about which setup they are using. Follow the steps in the [[litespeed_wiki:php:which_php_setup_am_I_using|Which PHP setup am I using? wiki]] to figure it out.
-====== Reached max children process limit? ======
+===== Reached Max Children Process Limit ======
 You might have already fine-tuned the environment variables such as LSAPI_CHILDREN to 50 but still experienced error message like “Reached max children process limit: 15, extra: 5, current: 20, please increase LSAPI_CHILDREN”. <env>LSAPI_CHILDREN=50</env> has been double-checked in lsphp5 external app and seems no problem. Why doesn't match? What happened? How to fix it?
@@ Line 60: / Line 60: @@
 On the other hand, you should verify if it is normal to have so many PHP processes. You may try to enable cache to avoid such high PHP processes.
+===== New PHP suEXEC Max Conn Being Ignored =====
+After you change **PHP suEXEC Max Conn**, for example, from ''10'' to ''20'', error messages sometime show as mixed old value ''10'' and new setting ''20''. Why?
+  (14715) Reached max children process limit: 10, extra: 3, current: 13, busy: 12, please increase LSAPI_CHILDREN.
+  (28253) Reached max children process limit: 20, extra: 6, current: 26, busy: 26, please increase LSAPI_CHILDREN.
+  (14715) Reached max children process limit: 10, extra: 3, current: 13, busy: 12, please increase LSAPI_CHILDREN.
+  (28253) Reached max children process limit: 20, extra: 6, current: 26, busy: 26, please increase LSAPI_CHILDREN.
+  (14715) Reached max children process limit: 10, extra: 3, current: 13, busy: 12, please increase LSAPI_CHILDREN.
+  (28253) Reached max children process limit: 20, extra: 6, current: 26, busy: 26, please increase LSAPI_CHILDREN.
+  (28253) Reached max children process limit: 20, extra: 6, current: 26, busy: 26, please increase LSAPI_CHILDREN.
+  (14715) Reached max children process limit: 10, extra: 3, current: 13, busy: 12, please increase LSAPI_CHILDREN.
+  (28253) Reached max children process limit: 20, extra: 6, current: 26, busy: 26, please increase LSAPI_CHILDREN.
+  (28253) Reached max children process limit: 20, extra: 6, current: 26, busy: 26, please increase LSAPI_CHILDREN.
+To make the change effective immediately, you will need to restart LiteSpeed Web Server. If LSWS 5.3+ is used, you will also need to restart detached PHPs
+  service lsws restart
+  killall lsphp