Symptoms
-
Plesk version is 18.0.50 and debug log with option
show.sql_query = onis activated. -
Plesk panel is showing error 502:
PHP Fatal error: Couldn't execute method Zend_Log::__destruct in Unknown on line 0
-
Errors like the following example can be found at
/var/log/sw-cp-server/error_log:[error] 22640#0: *747 recv() failed (104: Connection reset by peer) while reading response header from upstream, client: 127.0.0.1, server: , request: "GET / HTTP/1.0", upstream: "fastcgi://unix:/var/run/sw-engine.sock:", host: "ip address of the host"
Cause
Product issue:
-
#PPPM-13885 "Enabling debug logging in Plesk no longer makes the Plesk GUI inaccessible with the âHTTP 502 Bad Gatewayâ error."
Fixed in:- Plesk Obsidian 18.0.51 14 March 2023 (Linux)
- Plesk Obsidian 18.0.50 Update 1 08 February 2023 (Linux)
Resolution
Workaround
If update is not possible for some reason you may try the following
workaround
Until the fix becomes available as workaround:
-
Edit Plesk panel.ini file to add the following line under the
[log]section:[log]
firebug = 1