We are currently in the process of upgrading Matomo to the latest version 3.13.5 (currently running 3.13.1)
after the deployment of the new version with nginx and php-fpm, the agents on the monitored sites show a “504 Gateway Timeout” error on the browser.
after inspection I found this error in the nginx error log:
2020/05/25 06:34:59 [error] 13715#0: *480 upstream timed out (110: Connection timed out) while reading response header from upstream, client: xx.xx.xx.xx, server: localhost, request: "GET /piwik.php?action_name=&idsite=xxxx&rec=1&r=379151&h=8&m=33&s=59&url=https%3A%2F%2Fxxx.xxxx.com&urlref=https%3A%2F%2Fxxx.xxxx.com&_id=xxxxx&_idts=1583823949&_idvc=80&_idn=0&_refts=0&_viewts=1590383892&send_image=1&pdf=0&qt=0&realp=0&wma=0&dir=0&fla=1&java=1&gears=0&ag=0&cookie=1&res=1536x864>_ms=184&pv_id=r361RB HTTP/1.1", upstream: "fastcgi://127.0.0.1:9000", host: "piwik.xxxx.com", referrer: "https://xxx.xxxx.com/pdi/path/to/page"
This happened for all the monitored sites.
I tried running fastcgi using a socket instead of a fixed port but the same thing happened.
I also made sure that matomo.php is being executed.
I am using PHP 7.2.24 and nginx/1.16.1
Is this a bug in the new version? can anyone help?