Issue 502 Gateway to Plesk Login after update

[Joe90k]

Ran an update to plesk this afternoon on a cloud server I have, it seemed to complete successfully however it gave and error that another instance of the installer was running and said the server may be non-responsive.

All sites are fine, however the Plesk panel is inaccessible now. 502 Bad Gateway when accessing xxx.xxx.xxx.xxx:8443

Running /etc/init.d/sw-engine restart is OK - starting and stopping sw-engine is fine but has no effect on the login screen still 502, the last line of /var/log/sw-cp-server/error_log shows:-

2018/08/20 16:28:55 [error] 33289#0: *9001 recv() failed (104: Connection reset by peer) while reading response header from upstream, client: xxx.xxx.xxx.xxx, server: , request: "GET / HTTP/1.1", upstream: "fastcgi://unix:/var/run/sw-engine.sock:", host: "xxx.xxx.xxx.xxx:8443", referrer: "https://panel-url.xxx"

I think possibly the update failed, my Linux and Plesk Knowledge is limited so any help is appreciated! I also notice that /run is 100% used. I'm not sure if this is an issue or not!

ps aux | grep sw-
psaadm    7031  0.0  0.0 325716   540 ?        S    Jan04   0:08 sw-engine-kv
root     22906  0.0  3.3 511496 33400 ?        Ss   16:18   0:00 sw-engine-fpm: master process (/etc/sw-engine/sw-engine-fpm.conf)
root     23891  0.0  0.0 112704   972 pts/0    R+   16:33   0:00 grep --color=auto sw-
root     33287  0.0  0.0  52432     4 ?        Ss   Jul24   0:00 sw-cp-server: master process /usr/sbin/sw-cp-serverd -c /etc/sw-cp-server/config
sw-cp-s+ 33289  0.0  0.3  54484  3456 ?        S    Jul24   0:11 sw-cp-server: worker process

 

[Joe90k]

Also, plesk repair all -y -v returns 'signal: bus error'

 

[Brujo]

which OS do you have ?

did you try the usual comands? Try to run:
# plesk installer --select-release-current --reinstall-patch --upgrade-installed-components
# plesk repair installation

Another way would be -> contact Plesk Support Team if it not help, they will fix your Plesk directly on your server.

 

[Joe90k]

which OS do you have ?

did you try the usual comands? Try to run:
# plesk installer --select-release-current --reinstall-patch --upgrade-installed-components
# plesk repair installation

Another way would be -> contact Plesk Support Team if it not help, they will fix your Plesk directly on your server.

The first command looked hopeful the second returned signal: bus error - I will contact Plesk! Thanks

 

[Joe90k]

I tried to work out how to contact Plesk directly without too much luck! What's the best method please?

 

[Martin Dias]

I tried to work out how to contact Plesk directly without too much luck! What's the best method please?

There you go Submit a request – Plesk Help Center