Resolved After "autoupdate" Plesk PHP Engine on example.com is down

[jumpstart]

Hello,
my server is running since May, 2020 without any problem on Ubuntu 18.04.5 LTS / Plesk Onyx latest version. This morning i got e-mail that autoupdate was successful:

Hallo Administrator, diese Benachrichtigung ist eine Zusammenfassung der Systemupdates für Ihren Server
Die folgenden Pakete wurden erfolgreich aktualisiert:
- accountsservice 0.6.45-1ubuntu1.3 vom Repository Ubuntu for bionic-updates by Ubuntu (vorherige Version: 0.6.45-1ubuntu1 vom Repository Ubuntu for bionic by Ubuntu)
- libaccountsservice0 0.6.45-1ubuntu1.3 vom Repository Ubuntu for bionic-updates by Ubuntu (vorherige Version: 0.6.45-1ubuntu1 vom Repository Ubuntu for bionic by Ubuntu)
- libc-bin 2.27-3ubuntu1.3 vom Repository Ubuntu for bionic-updates by Ubuntu (vorherige Version: 2.27-3ubuntu1.2 vom Repository Ubuntu for bionic-security by Ubuntu)
- libc-dev-bin 2.27-3ubuntu1.3 vom Repository Ubuntu for bionic-updates by Ubuntu (vorherige Version: 2.27-3ubuntu1.2 vom Repository Ubuntu for bionic-security by Ubuntu)
- libc6 2.27-3ubuntu1.3 vom Repository Ubuntu for bionic-updates by Ubuntu (vorherige Version: 2.27-3ubuntu1.2 vom Repository Ubuntu for bionic-security by Ubuntu)
- libc6-dev 2.27-3ubuntu1.3 vom Repository Ubuntu for bionic-updates by Ubuntu (vorherige Version: 2.27-3ubuntu1.2 vom Repository Ubuntu for bionic-security by Ubuntu)
- libc6-i386 2.27-3ubuntu1.3 vom Repository Ubuntu for bionic-updates by Ubuntu (vorherige Version: 2.27-3ubuntu1.2 vom Repository Ubuntu for bionic-security by Ubuntu)
- locales 2.27-3ubuntu1.3 vom Repository Ubuntu for bionic-updates by Ubuntu (vorherige Version: 2.27-3ubuntu1.2 vom Repository Ubuntu for bionic-security by Ubuntu)
- multiarch-support 2.27-3ubuntu1.3 vom Repository Ubuntu for bionic-updates by Ubuntu (vorherige Version: 2.27-3ubuntu1.2 vom Repository Ubuntu for bionic-security by Ubuntu)
- python3-cryptography 2.1.4-1ubuntu1.4 vom Repository Ubuntu for bionic-updates by Ubuntu (vorherige Version: 2.1.4-1ubuntu1.3 vom Repository now)

few minutes after the update got eMail from Watchdog:
The Plesk PHP Engine service on host example.com is down.

some more few minutes later:
The Plesk PHP Engine service on host example.com has been started on Nov 4, 2020 07:27 AM.

Those two eMails run in repeated some few minutes. again and again.

I was able to enter plesk admin web interface. I stopped watchdog. I restartet server.
My application on server ist still running pretty good.
But now i'm not able to enter plesk admin web interface anymore.

Now, what to do? Wait until the next "autoupdate" fixes the problem?
Thanks for any advice. Sorry. I'm not that expert.
Thank you for any Help.

Andreas

 

[IgorG]

But now i'm not able to enter plesk admin web interface anymore.

Could you please be more specific? What kind of error message do you have there? Or what is a problem with login? Wrong password or what?
Have you tried to find a reason in log files /var/log/sw-cp-server/error_log and /var/log/sw-cp-server/sw-engine.log ?

 

[jumpstart]

I get the page "502 Bad Gateway" / Web server received an invalid response while acting as a gateway or proxy server.
You may be able to resolve the issue automatically using the Repair Kit.
If you are the server's administrator, you can try resolving the issue using the Repair Kit, our troubleshooting tool.

This is the timeline of eMail i received from watchdog when error first occurs:
4.11. 6:28 update success
4.11. 6:42 The Plesk PHP Engine service on host example.com is down. The problem was discovered on Nov 4, 2020 06:42 AM.
6:47 The Plesk PHP Engine service on host example.com has been started on Nov 4, 2020 06:47 AM.
6:52 The Plesk PHP Engine service on host example.com is down. The problem was discovered on Nov 4, 2020 06:52 AM.
6:57 The Plesk PHP Engine service on host example.com has been started on Nov 4, 2020 06:57 AM.

i'm not sure whether i should start repair kit. i'm affraid to destroy more than rapair anything.

 

[jumpstart]

When running repair kit. It tells me that sw-engine should be restartet. Restart ok. But after aprox. 5 minutes it stops again.
Maybe i should reinstall last updates. But dont know how to manage.

 

[IgorG]

Maybe i should reinstall last updates. But dont know how to manage.

Try to use command:

# plesk installer --select-release-current --reinstall-patch --upgrade-installed-components

 

[jumpstart]

Solution:

Resolved - sw-engine.service gets killed after 1-2 minutes

Hello Plesk community I am running Plesk Onyx 17.8.11 Update #91 , last updated at Nov 6, 2020 01:20 AM on ‪Ubuntu 18.04.5 LTS‬ Recently I started having the following error when accessing the plesk control panel: Server Error 502 Bad Gateway When opening the Repair Kit I see that the...

talk.plesk.com