Magento 2.3.3 503 Service Unavailable error

[Sheba]

Greetings,

I restored a 2.3.3 backup.  Did php bin/ magento cache:clean and flush.  Still got message:

Service Unavailable

The server is temporarily unable to service your request due to maintenance downtime or capacity problems. Please try again later.

Additionally, a 503 Service Unavailable error was encountered while trying to use an ErrorDocument to handle the request.

How do I fix this?  Thanks for your attention.

[Bhanu Periwal]

Hi @Sheba 

Kindly follow below steps for resolve your issue:

• Go to the Magento root folder to delete the file var/.maintenance.flag
• Refresh Magento 2 cache from php bin/magento cache:flush or via the Admin Panel
• Check the error log if you see a message saying “Exception printing is disabled by default for security reasons.”
• In case of an error like “Please Upgrade your database”, run php bin/magento setup:upgrade from the root directory.

It may help you!
Problem Solved? Please click on 'Kudos' & Accept as Solution!

[Sheba]

Hi Bhanu,

I see no .maintenance.flag in /public_html/var.  I did grep -ri and it is referenced in CHANGELOG.md.

I have cleared cache many times.  503 error still shows.

[Sheba]

I also ran these commands, 503 error still shows

rm -rf var/cache/*  

# php bin/magento setup:upgrade
# php bin/magento setup:di:compile
# php bin/magento setup:static-content:deploy -f 

[Sheba · Accepted solution]

Error log shows 

bin/magento must be run as a CLI application

I changed php from 7.2 to 7.3.  Now site shows.