Nginx PageSpeed Nginx Nginx uses all resources and then crashes when pagespeed is enabled

I have the same situation.
When both are enabled, site doesn't load.

 

Recompile it today.

 

yes XF.

No.

I got:

Code:

ENABLEMOTD='n'

CUSTOMSERVERNAME='y'
CUSTOMSERVERSTRING='nginx'

AUTO_GITUPDATE='y'
DISABLE_IPVSIX='y'

NSD_DISABLED='y'
MEMCACHED_DISABLED='y'
PUREFTPD_DISABLED='y'

NGXDYNAMIC_NGXPAGESPEED='y'

NGINX_UPDATEMAINTENANCE='n'
PHP_UPDATEMAINTENANCE='n'
MARIADB_UPDATEMAINTENANCE='n'

AUTOTUNE_CLIENTMAXBODY='n'
NSD_INSTALL='n'              # Install NSD (DNS Server)
NGXMODULE_ALTORDER='n'       # nginx configure module ordering alternative order
NGINX_DEBUG='n'              # Enable & reinstall Nginx debug log nginx.org/en/docs/debugging_log.html & wiki.nginx.org/Debugging
NGINX_HTTP2='y'              # Nginx http/2 patch https://community.centminmod.com/threads/4127/
NGINX_MODSECURITY=n          # modsecurity module support https://github.com/SpiderLabs/ModSecurity/wiki/Reference-Manual#Installation_for_NGINX
NGINX_REALIP='n'
NGINX_RDNS='n'               # https://github.com/flant/nginx-http-rdns
NGINX_NJS='n'                # nginScript https://www.nginx.com/blog/launching-nginscript-and-looking-ahead/
NGINX_GEOIP='n'              # Nginx GEOIP module install
NGINX_STUBSTATUS='n'         # http://nginx.org/en/docs/http/ngx_http_stub_status_module.html required for nginx statistics
NGINX_SUB='n'                # http://nginx.org/en/docs/http/ngx_http_sub_module.html
NGINX_ADDITION='n'           # http://nginx.org/en/docs/http/ngx_http_addition_module.html
NGINX_IMAGEFILTER='n'        # http://nginx.org/en/docs/http/ngx_http_image_filter_module.html
NGINX_PERL='n'               # http://nginx.org/en/docs/http/ngx_http_perl_module.html
NGINX_XSLT='n'               # http://nginx.org/en/docs/http/ngx_http_xslt_module.html
NGINX_CACHEPURGE='n'         # https://github.com/FRiCKLE/ngx_cache_purge/
NGINX_ACCESSKEY='n'          #
NGINX_HTTPCONCAT='n'         # https://github.com/alibaba/nginx-http-concat
NGINX_THREADS='n'            # https://www.nginx.com/blog/thread-pools-boost-performance-9x/
NGINX_STREAM='n'             # http://nginx.org/en/docs/stream/ngx_stream_core_module.html
NGINX_STREAMGEOIP='n'        # nginx 1.11.3+ option http://hg.nginx.org/nginx/rev/558db057adaa
NGINX_STREAMREALIP='n'       # nginx 1.11.4+ option http://hg.nginx.org/nginx/rev/9cac11efb205
NGINX_STREAMSSLPREREAD='n'   # nginx 1.11.5+ option https://nginx.org/en/docs/stream/ngx_stream_ssl_preread_module.html
NGINX_RTMP='n'               # Nginx RTMP Module support https://github.com/arut/nginx-rtmp-module
NGINX_FLV='n'                # http://nginx.org/en/docs/http/ngx_http_flv_module.html
NGINX_MP4='n'                # Nginx MP4 Module http://nginx.org/en/docs/http/ngx_http_mp4_module.html
NGINX_AUTHREQ='n'            # http://nginx.org/en/docs/http/ngx_http_auth_request_module.html
NGINX_SECURELINK='n'         # http://nginx.org/en/docs/http/ngx_http_secure_link_module.html
NGINX_FANCYINDEX='n'         # http://wiki.nginx.org/NgxFancyIndex
NGINX_VHOSTSTATS='n'         # https://github.com/vozlt/nginx-module-vts
NGINX_LIBBROTLI='y'          # https://github.com/google/ngx_brotli
NGINX_LIBBROTLISTATIC='n'
NGINX_PAGESPEED='y'          # Install ngx_pagespeed
NGINX_PAGESPEEDGITMASTER='n' # Install ngx_pagespeed from official github master instead
NGINX_PASSENGER='n'          # Install Phusion Passenger requires installing addons/passenger.sh before hand
NGINX_WEBDAV='n'             # Nginx WebDAV and nginx-dav-ext-module
NGINX_HTTPREDIS='n'          # Nginx redis http://wiki.nginx.org/HttpRedisModule
ORESTY_HEADERSMORE='n'       # openresty headers more https://github.com/openresty/headers-more-nginx-module
NGINX_STICKY='n'             # nginx sticky module https://bitbucket.org/nginx-goodies/nginx-sticky-module-ng
NGINX_UPSTREAMCHECK='n'      # nginx upstream check https://github.com/yaoweibin/nginx_upstream_check_module
NGINX_OPENRESTY='n'          # Agentzh's openresty Nginx modules
ORESTY_SETMISCGIT='n'        # use git master instead of version specific
ORESTY_ECHOGIT='n'           # use git master instead of version specific

LUAJIT_GITINSTALL='n'        # opt to install luajit 2.1 from dev branch http://repo.or.cz/w/luajit-2.0.git/shortlog/refs/heads/v2.1

ORESTY_LUANGINX='n'             # enable or disable or ORESTY_LUA* nginx modules below
NGX_LUAUPSTREAM='n'                # disable https://github.com/openresty/lua-upstream-nginx-module
NGX_LUAUPSTREAMCACHE='n'           # disable https://github.com/cloudflare/lua-upstream-cache-nginx-module

PHPGEOIP_ALWAYS='n'          # GeoIP php extension is always reinstalled on php recompiles
PHPDEBUGMODE='n'             # --enable-debug PHP compile flag
PHPFINFO='n'                 # Disable or Enable PHP File Info extension
PHPPCNTL='n'                 # Disable or Enable PHP Process Control extension
PHPINTL='n'                  # Disable or Enable PHP intl extension
PHPRECODE=n                  # Disable or Enable PHP Recode extension
PHPSNMP='n'                  # Disable or Enable PHP SNMP extension
PHPIMAGICK='y'               # Disable or Enable PHP ImagicK extension
PHPMAILPARSE='n'             # Disable or Enable PHP mailparse extension
PHPIONCUBE='n'               # Disable or Enable Ioncube Loader via addons/ioncube.sh
POSTGRESQL='n'               # set to =y to install PostgreSQL 9.4 server, devel packages and pdo-pgsql PHP extension

NGINX_VHOSTSSL='n'           # enable centmin.sh menu 2 prompt to create self signed SSL vhost 2nd vhost conf
NGINXBACKUP='n'

### Nginx SSL options
OPENSSL_VERSION='1.0.2n'
LIBRESSL_SWITCH='n'

MEMCACHED_INSTALL='n'         # Install Memcached
PHPREDIS='y'                # redis PHP extension install
PHPMONGODB='n'              # MongoDB PHP extension install
PHP_FTPEXT='n'              # ftp PHP extension
PHP_MEMCACHE='n'            # memcache PHP extension
PHP_MEMCACHED='n'           # memcached PHP extension
PHP_VERSION='7.1.12'        # Use this version of PHP
ZOPCACHEDFT='y'
PHP_EXTRAOPTS=""

 

Debugged a little deeper and can confirm @Volodymyr Lupu 's catch of the combination of brotli, let's encrypt and pagespeed causes a huge loading delay which sometimes leads to a site crash.
Adding..

Code:

pagespeed HttpCacheCompressionLevel 0;

...to pagespeed.conf didn’t help.

Debugging:
I have a https site, three more http and phpmyadmin open. Switching in between and reloading them causes at some point the server to go down. Log file show signal 11 and a few signal 9s. And trying to display..

Code:

_DOMAIN_/pagespeed_global_admin/message_history

shows the error:

Code:

Writing to mod_pagespeed_message failed. Verify that MessageBufferSize is not set to 0 in pagespeed.conf.

But there is no such setting in the configuration.

And yes, i can also confirm that when brotli and pagespeed are both enabled and only http sites are loaded then everything seems fine. But the moment the https site comes to the game with a fresh reload the problems start.
While debugging i saw that pagespeed handles PMA as well. Mentioned that in another thread already though without getting a response.

Shouldn't PMA be by default excluded from pagespeed?

I have commented this issue on ngx_pagespeed Github where a user catched the same "Worker process exited on signal 11"-error like i did on /usr/local/nginx/logs/error.log

Btw. adding

Code:

pagespeed HttpCacheCompressionLevel 0;

to pagespeed.conf didn't help.


pagespeed off; vs. pagespeed unplugged; issue

My pagespeed version is X-Page-Speed: 1.12.34.3-0 and when i turn pagespeed off with

Code:

pscontrol off

then

Code:

pagespeed unplugged;

is added to pagespeedadmin.conf.
Now the https sites load normal but PMA still crashes. But when changing pagespeed unplugged; to

Code:

pagespeed off;

in the pagespespeedadmin.conf (or adding directly to phpmyadmin_ssl.conf) then PMA and all sites load normal. Doesn't that confirm the idea of a by default pagespeed excluded PMA in centmin?

Beware that if pagespeedadmin.conf is manually changed to

Code:

pagespeed off;

then pscontrol on has no effect on the file anymore.

One of the ngx_developer adviced to create a new issue on Github:

Nginx, brotli, ssl combination crashes nginx · Issue #1518 · pagespeed/ngx_pagespeed · GitHub

 

A few days ago you responded to my question on how to downgrade pagespeed back to the stable version that "123.09beta01 had an update to update pscontrol for 1.13.35.1 changes and to support downgrading back to previous version of ngx_pagespeed.".

Am i understanding you right that changing back to the stable version will lead to crashes and is also the purpose of my above described issues?

 

I can confirm that i update centmin, yum, etc. on a daily basis and i don't post an issue if centmin.sh isn't uptodate nor before searching this forum and/or on google for a solution.

Edit 2:
Yes, updating to v.1.13.35.1-0 fixes the issue BUT isn't "pagespeed unplugged;" compatible since v.1.12.34.1 ?

 

Could you please also tell me if there is anything speaking against that?