How to Fix Magento's Readiness Check

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Introduction

Magneto performs a readiness check before installing or updating extensions. If this check fails, it will not allow you to proceed. There are two common reasons for a readiness check failure&mdashincorrectly configured cron tasks and low PHP-FPM memory limits. The PHP-FPM memory limit needs to be set very high, or Magento becomes unstable and will not display error messages.

One-step Repair Script

This script will address both issues. Save the following script on your server as "magento_patch.sh".

#!/bin/bash

# Move the crontab to the right place
mv -f /var/spool/cron/nginx /var/spool/cron/crontabs/nginx

# Fix PHP memory limit
sed -i -e 's/php_admin_value\[memory_limit\] = 756M/php_admin_value\[memory_limit\] = 2G/' 
/etc/php/7.0/fpm/pool.d/www.conf

# Restart PHP-FPM
systemctl restart php7.0-fpm.service

Run the script.

chmod +x magento_patch.sh; ./magento_patch.sh

After the script completes, wait a minute for the cron script to run and then initiate a new readiness check.

Other Issues

There are several other, less common reasons for a readiness check failure. Please refer to the official documentation, which has the latest information.

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