Wordpress unable to complete Wordpress install

Need more of the wordpress install log as it's possible Wordpress itself failed to download/install and that excerpt doesn't show enough.

To troubleshoot centmin.sh menu option 22 wordpress installation, you need to check the centmin.sh menu option 22 log located in /root/centminlogs at /root/centminlogs/centminmod_*_wordpress_addvhost.log based log where * is the centminmod version and date timestamp. Edit and mask any actual ftp username/password or wordpress usernames and logins before posting the log contents to Pastebin.com or Gists to share a sanitised version of the contents of the log.

Example list /root/centminlogs files in date ascending order and grep for wordpress_addvhost.log

Code (Text):

ls -lahrt /root/centminlogs | grep wordpress_addvhost.log

example output returns log at /root/centminlogs/centminmod_1.2.3-eva2000.09.001_111016-112321_wordpress_addvhost.log

Code (Text):

ls -lahrt /root/centminlogs | grep wordpress_addvhost.log
-rw-r--r--  1 root root 2.2M Oct 11 01:40 /root/centminlogs/centminmod_1.2.3-eva2000.09.001_111016-112321_wordpress_addvhost.log

in SSH use cat to ouput contents of /root/centminlogs/centminmod_1.2.3-eva2000.09.001_111016-112321_wordpress_addvhost.log. Clear your SSH client window/buffer so only output is the contents of the file

Code (Text):

cat /root/centminlogs/centminmod_1.2.3-eva2000.09.001_111016-112321_wordpress_addvhost.log

Then copy and paste into Pastebin.com or Gists entry. If your SSH window scroll buffer isn't that large to get the whole contents of the install log, you can download file manually and copy and paste contents. But makes sure it's sanitised version of the contents without revealing sensitive info. For example you can replace domain name of the wordpress site with generic dummy entry = domain.com if you want and mask site/server IP revealed in the log with generic dummy entry = 111.222.333.444.

 

looks like you hit some kind of memory limit in PHP/WP-CLI

Code (Text):

Downloading WordPress 5.5.3 (en_US)...
Using cached file '/root/.wp-cli/cache/core/wordpress-5.5.3-en_US.tar.gz'...
PHP Fatal error:  Allowed memory size of 50331648 bytes exhausted (tried to allocate 36864 bytes) in phar:///usr/bin/wp/vendor/wp-cli/wp-cli/php/WP_CLI/Extractor.php on line 101
Error: This does not seem to be a WordPress installation.
Pass --path=`path/to/wordpress` or run `wp core download`.

50331648 bytes is very low limit. How much memory does your system have? output for these commands

Code (Text):

php -i | grep memory_limit

Code (Text):

free -mlt

Code (Text):

cminfo sar-mem

 

Wordpress 5.5 doesn't support PHP 8.0. You need to wait for next Wordpress 5.6 for PHP 8.0 support

 

Instead of editing existing .ini you can create one with filename that overrides any others by ensuring it's name is alphanumerically after other settings files. See example at PHP-FPM - CentminMod.com LEMP Nginx web stack for CentOS

 

Currently 123.09beta01 dynamically sets those specific values based on total memory that is actually free and not total memory that is installed.

Code (Text):

    # dynamic PHP memory_limit calculation
    if [[ "$TOTALMEM_PHP" -le '262144' ]]; then
        ZOLIMIT='32'
        PHP_MEMORYLIMIT='48M'
        PHP_UPLOADLIMIT='48M'
        PHP_REALPATHLIMIT='512k'
        PHP_REALPATHTTL='14400'
    elif [[ "$TOTALMEM_PHP" -gt '262144' && "$TOTALMEM_PHP" -le '393216' ]]; then
        ZOLIMIT='80'
        PHP_MEMORYLIMIT='96M'
        PHP_UPLOADLIMIT='96M'
        PHP_REALPATHLIMIT='640k'
        PHP_REALPATHTTL='21600'
    elif [[ "$TOTALMEM_PHP" -gt '393216' && "$TOTALMEM_PHP" -le '524288' ]]; then
        ZOLIMIT='112'
        PHP_MEMORYLIMIT='128M'
        PHP_UPLOADLIMIT='128M'
        PHP_REALPATHLIMIT='768k'
        PHP_REALPATHTTL='28800'
    elif [[ "$TOTALMEM_PHP" -gt '524288' && "$TOTALMEM_PHP" -le '1049576' ]]; then
        ZOLIMIT='144'
        PHP_MEMORYLIMIT='160M'
        PHP_UPLOADLIMIT='160M'
        PHP_REALPATHLIMIT='768k'
        PHP_REALPATHTTL='28800'
    elif [[ "$TOTALMEM_PHP" -gt '1049576' && "$TOTALMEM_PHP" -le '2097152' ]]; then
        ZOLIMIT='160'
        PHP_MEMORYLIMIT='320M'
        PHP_UPLOADLIMIT='320M'
        PHP_REALPATHLIMIT='1536k'
        PHP_REALPATHTTL='28800'
    elif [[ "$TOTALMEM_PHP" -gt '2097152' && "$TOTALMEM_PHP" -le '3145728' ]]; then
        ZOLIMIT='192'
        PHP_MEMORYLIMIT='384M'
        PHP_UPLOADLIMIT='384M'
        PHP_REALPATHLIMIT='2048k'
        PHP_REALPATHTTL='43200'
    elif [[ "$TOTALMEM_PHP" -gt '3145728' && "$TOTALMEM_PHP" -le '4194304' ]]; then
        ZOLIMIT='224'
        PHP_MEMORYLIMIT='512M'
        PHP_UPLOADLIMIT='512M'
        PHP_REALPATHLIMIT='3072k'
        PHP_REALPATHTTL='43200'
    elif [[ "$TOTALMEM_PHP" -gt '4194304' && "$TOTALMEM_PHP" -le '8180000' ]]; then
        ZOLIMIT='288'
        PHP_MEMORYLIMIT='640M'
        PHP_UPLOADLIMIT='640M'
        PHP_REALPATHLIMIT='4096k'
        PHP_REALPATHTTL='43200'
    elif [[ "$TOTALMEM_PHP" -gt '8180000' && "$TOTALMEM_PHP" -le '16360000' ]]; then
        ZOLIMIT='320'
        PHP_MEMORYLIMIT='800M'
        PHP_UPLOADLIMIT='800M'
        PHP_REALPATHLIMIT='4096k'
        PHP_REALPATHTTL='43200'
    elif [[ "$TOTALMEM_PHP" -gt '16360000' && "$TOTALMEM_PHP" -le '32400000' ]]; then
        ZOLIMIT='480'
        PHP_MEMORYLIMIT='1024M'
        PHP_UPLOADLIMIT='1024M'
        PHP_REALPATHLIMIT='4096k'
        PHP_REALPATHTTL='43200'
    elif [[ "$TOTALMEM_PHP" -gt '32400000' && "$TOTALMEM_PHP" -le '64800000' ]]; then
        ZOLIMIT='600'
        PHP_MEMORYLIMIT='1280M'
        PHP_UPLOADLIMIT='1280M'
        PHP_REALPATHLIMIT='4096k'
        PHP_REALPATHTTL='43200'
    elif [[ "$TOTALMEM_PHP" -gt '64800000' ]]; then
        ZOLIMIT='800'
        PHP_MEMORYLIMIT='2048M'
        PHP_UPLOADLIMIT='2048M'
        PHP_REALPATHLIMIT='8192k'
        PHP_REALPATHTTL='86400'
    fi

Where total memory (TOTALMEM_PHP) is actually calculated on free available memory and not installed memory to be more accurate. Basing it on total installed memory would be bad as some of that installed memory is already being used most of the time!

For CentOS 7 non-OpenVZ that free memory calculation is using this formula which takes into account multiple CPU socket numa based memory allocations.

Code (Text):

        # account for multiple cpu socket numa based memory
        # https://community.centminmod.com/posts/48189/
        GETCPUNODE_COUNT=$(numactl --hardware | awk '/available: / {print $2}')
        if [[ "$GETCPUNODE_COUNT" -ge '2' ]]; then
          FREEMEM_NUMANODE=$(($(numactl --hardware | awk '/free:/ {print $4}' | sort -r | head -n1)*1024))
          FREEMEMCACHED=$(egrep '^Buffers|^Cached' /proc/meminfo | awk '{summ+=$2} END {print summ}' | head -n1)
          FREEMEM=$(($FREEMEM_NUMANODE+$FREEMEMCACHED))
        else
          FREEMEM=$(cat /proc/meminfo | grep MemAvailable | awk '{print $2}')
        fi

TOTALMEM_PHP=$FREEMEM