[magento] Service Temporarily Unavailable Magento?

My application was working fine yesterday. I started my PC today. When I tried to start Magento I got this error message.

Service Temporarily Unavailable

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

I am not even able to open the admin page or see any sort of errors on the page. If I visit any URL of my Magento site I am getting the above output. How do I resolve this?

You need to follow these steps:

1. Go to magento root directory via cPanel/FTP
2. In case of Magento1, you will find maintenance.flag and delete it
3. In case of Magento2, delete var/maintenance.flag

Now in new version magento2 on Generate error Service Temporarily Unavailable.

Remove maintenance.flag

From this path which is changed magento2/var/maintenance.flag.

Also

$ rm maintenance.flag

To fix Service Temporarily Unavailable Magento 2, you should:

• Delete a file called var/.maintenance.flag in Magento root folder
• Remove Magento cache if any: php bin/magento cache:flush

If you run into this problem (like I did) and NO maintenance.flag file exists anywhere, it's the Redis cache that's causing the problem; clear it.

I had to clear the Redis cache by contacting my hosting company and let them do it because I don't have access to that cache.

I figured this out using this answer: https://magento.stackexchange.com/a/55814/77803

go to your website via FTP/Cpanel, find maintenance.flag and remove

In Magento 2 You have to remove file located in /var/.maintenance.flag - just realized that after some searching, so i shall share.

I happen all the time when you install a new plugin. You just have to delete maintenance.flag file in your root directory

Check the root folder of your Magento installation directory .You will find maintenance.flag file, delete it and refresh the site .it will work fine.

If removing the flag shows service temporary unavailable. Go to "http://localhost.com/downloader" and unisntall slider banner,BusinessDecision_Interaktingslider,lightbox2 and anotherone that I dont remember.

I had the same issue but have not found the maintenance.flag file in my Magento root. I simply deleted cache and sessions files and all worked again.

You can do this thing:

Go to http://localhost/magento/downloader url. Here I am running the magento store on my localhost. Now you can login to magento connect manager and uninstall the extension which you installed previously.

Hope this works !!!!!

Thanks.

Simply delete the maintenance.flag file in root folder and then delete the files of cache folder and session folder inside var/ folder.