Support » Plugin: LiteSpeed Cache » 503 error when Litespeed Cache is activated

Viewing 15 replies - 1 through 15 (of 17 total)
  • Plugin Support qtwrk

    (@qtwrk)

    Hi,

    which page you get the 503 error ?

    Best regards,

    Thread Starter Carsten Lund

    (@carsten-lund)

    Hi there, it’s not on any specific page, also on the front page.

    Regards
    Carsten

    Plugin Support qtwrk

    (@qtwrk)

    Hi,

    Could you please check /usr/local/lsws/logs/stderr.log , see if there is anhing inside of it ?

    Best regards,

    Thread Starter Carsten Lund

    (@carsten-lund)

    Hi there, where do I find this log?

    Regards

    Plugin Support qtwrk

    (@qtwrk)

    Hi,

    /usr/local/lsws/logs/stderr.log

    Best regards,

    Thread Starter Carsten Lund

    (@carsten-lund)

    I don’t know the right command to show this log

    Thread Starter Carsten Lund

    (@carsten-lund)

    Plugin Support qtwrk

    (@qtwrk)

    Hi,

    no , it’s text file , you can not execute it , you need to view it

    Best regards,

    Thread Starter Carsten Lund

    (@carsten-lund)

    I this what you are looking for?

    2020-11-29 12:40:00.399 [STDERR] [106177] Reached max children process limit: 10, extra: 0, current: 10, busy: 10, please increase LSAPI_CHILDREN.
    [106177] Reached max children process limit: 10, extra: 0, current: 10, busy: 10, please increase LSAPI_CHILDREN.
    [106177] Reached max children process limit: 10, extra: 0, current: 10, busy: 10, please increase LSAPI_CHILDREN.
    [106177] Reached max children process limit: 10, extra: 0, current: 10, busy: 10, please increase LSAPI_CHILDREN.
    2020-11-29 12:40:00.448 [STDERR] [106177] Reached max children process limit: 10, extra: 0, current: 10, busy: 10, please increase LSAPI_CHILDREN.
    2020-11-29 12:40:00.548 [STDERR] [106177] Reached max children process limit: 10, extra: 0, current: 10, busy: 10, please increase LSAPI_CHILDREN.
    2020-11-29 12:40:00.648 [STDERR] [106177] Reached max children process limit: 10, extra: 0, current: 10, busy: 10, please increase LSAPI_CHILDREN.
    2020-11-29 12:40:00.748 [STDERR] [106177] Reached max children process limit: 10, extra: 0, current: 10, busy: 10, please increase LSAPI_CHILDREN.
    2020-11-29 12:40:00.848 [STDERR] [106177] Reached max children process limit: 10, extra: 0, current: 10, busy: 10, please increase LSAPI_CHILDREN.
    2020-11-29 12:40:00.949 [STDERR] [106177] Reached max children process limit: 10, extra: 0, current: 10, busy: 10, please increase LSAPI_CHILDREN.
    2020-11-29 12:40:01.149 [STDERR] [106177] Reached max children process limit: 10, extra: 0, current: 10, busy: 10, please increase LSAPI_CHILDREN.
    2020-11-29 12:40:01.249 [STDERR] [106177] Reached max children process limit: 10, extra: 0, current: 10, busy: 10, please increase LSAPI_CHILDREN.
    2020-11-29 12:40:01.349 [STDERR] [106177] Reached max children process limit: 10, extra: 0, current: 10, busy: 10, please increase LSAPI_CHILDREN.
    2020-11-29 12:40:01.449 [STDERR] [106177] Reached max children process limit: 10, extra: 0, current: 10, busy: 10, please increase LSAPI_CHILDREN.
    2020-11-29 12:40:01.550 [STDERR] [106177] Reached max children process limit: 10, extra: 0, current: 10, busy: 10, please increase LSAPI_CHILDREN.
    2020-11-29 12:40:01.652 [STDERR] [106177] Reached max children process limit: 10, extra: 0, current: 10, busy: 10, please increase LSAPI_CHILDREN.
    2020-11-29 12:40:01.752 [STDERR] [106177] Reached max children process limit: 10, extra: 0, current: 10, busy: 10, please increase LSAPI_CHILDREN.
    2020-11-29 12:40:01.852 [STDERR] [106177] Reached max children process limit: 10, extra: 0, current: 10, busy: 10, please increase LSAPI_CHILDREN.
    2020-11-29 12:40:01.952 [STDERR] [106177] Reached max children process limit: 10, extra: 0, current: 10, busy: 10, please increase LSAPI_CHILDREN.
    2020-11-29 12:40:02.052 [STDERR] [106177] Reached max children process limit: 10, extra: 0, current: 10, busy: 10, please increase LSAPI_CHILDREN.
    2020-11-29 12:40:02.153 [STDERR] [106177] Reached max children process limit: 10, extra: 0, current: 10, busy: 10, please increase LSAPI_CHILDREN.
    @@@
    “/usr/local/lsws/logs/stderr.log” [readonly] 41168L, 6156757C 1,1 Top

    Plugin Support qtwrk

    (@qtwrk)

    Hi,

    yeah

    Reached max children process limit: 10, extra: 0, current: 10, busy: 10, please increase LSAPI_CHILDREN.

    this seems interesting

    the max PHP processes allowed is 10 , when it requires more PHP to start up , it will either be hold-in-line , or returns as 503 error

    raise the limit from 10 to 15 or 20

    run

    grep -riF "LSAPI_CHILDREN" /usr/local/lsws/conf

    it should returns you 2 or 3 files , edit them , you will see 2 lines as

      maxConns                10
      env                     PHP_LSAPI_CHILDREN=10

    change them to 10 or 15 , then restart OLS by systemctl restart lsws

    Best regards,

    Thread Starter Carsten Lund

    (@carsten-lund)

    This is what it returns:

     sudo grep -riF "LSAPI_CHILDREN" /usr/local/lsws/conf
    /usr/local/lsws/conf/httpd_config.conf0:    env                             PHP_LSAPI_CHILDREN=10
    /usr/local/lsws/conf/httpd_config.conf:    env                             PHP_LSAPI_CHILDREN=10
    /usr/local/lsws/conf/httpd_config.conf0,v:    env                             PHP_LSAPI_CHILDREN=10
    /usr/local/lsws/conf/httpd_config.conf.dpkg:    env                             PHP_LSAPI_CHILDREN=10
    Plugin Support qtwrk

    (@qtwrk)

    edit this file

    /usr/local/lsws/conf/httpd_config.conf

    find these 2 lines

      maxConns                10
      env                     PHP_LSAPI_CHILDREN=10

    change it from 10 to higher number , don’t go too high , gradually raise , as 15 or 20 and monitoring your RAM

    too many PHP process could easily overwhelm RAM.

    Thread Starter Carsten Lund

    (@carsten-lund)

    Linux is new to me, could you guide me how to edit these files?

    First I’m not sure if I should use sudo to open /usr/local/lsws/conf/httpd_config.conf?

    Plugin Support qtwrk

    (@qtwrk)

    Thread Starter Carsten Lund

    (@carsten-lund)

    Thanks, I will look into this tutorial

    Regards

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