Applicable to:
- Plesk Onyx for Linux
- Plesk for Linux
Symptoms
-
While accessing Plesk or performing any actions the following error is shown:
CONFIG_TEXT: 502 Bad Gateway
-
The following error message appears in
/var/log/sw-cp-server/error_log:CONFIG_TEXT: recv() failed (104: Connection reset by peer) while reading response header from upstream, client: 203.0.113.2, server: , request: "POST <some url>
OR
CONFIG_TEXT: [error] 17434#0: *4954 upstream sent too big header while reading response header from upstream, client: 203.0.113.2, server: , request: "GET /modules/xovi/index.php/log-analyzer/index/id/2 HTTP/1.1", upstream: "fastcgi://unix:/var/run/sw-engine.sock:", host: "example.com:8443", referrer: "https://example.com:8443/"
Cause
Low FastCGI buffer limits.
Resolution
-
Connect to the server via SSH.
-
Open
/etc/sw-cp-server/configwith a text editor:# vi /etc/sw-cp-server/config
-
Increase FastCGI buffer limits using the editor:
CONFIG_TEXT: fastcgi_buffers 32 32k;
fastcgi_buffer_size 64k; -
Restart sw-cp-server and sw-engine services:
# service sw-cp-server restart && service sw-engine restart
Comments
1 comment
This error occurs when logging out of Plesk on numerous servers after upgrade to 18.0.63 Update #4
And is fixed by the above changes. Perhaps this should be default on all Plesk installs now, no?
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