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Palvelin Postmaster via nginx

December 13, 2018 04:18AM

Hi,

I run nginx/1.14.0 (Ubuntu 18.04) and PHP-FPM 7.2. I get such occasional (daily) errors about too long cache file headers:

2018/12/13 10:39:49 [crit] 1537#1537: *760972 cache file "/var/lib/nginx/fastcgi/mydomain-fi/d/be/7a11ac32c28dc9f8c3d7da12fe3d6bed" has too long header, client: XXX.XXX.XXX.XXX, server: mydomain.fi, request: "GET /kotitreeni/ HTTP/1.1", host: ”mydomain.fi"

Can someone offer any insight as to why this is happening, what I could do to prevent it or how I could further analyze the cause?

Here are a couple examples of headers from such cache files _after_ the error log entry (possibly redundant, but anyhow):

Â(\√\’\¶áx≥""a652b989092efd137f04e13cad4af4b3"Accept-Encoding˜, ñ#Õ∫3`˝„u»˝Zt
KEY: httpsGETmydomain.fi/kotitreeni/
3Content-Type: text/html; charset=UTF-8
Last-Modified: Thu, 13 Dec 2018 08:39:31 GMT
Expires: Thu, 13 Dec 2018 09:39:31 GMT
Pragma: public
Cache-Control: max-age=3582, public
ETag: "a652b989092efd137f04e13cad4af4b3"
X-Powered-By: W3 Total Cache/0.9.7
Content-Encoding: gzip
Vary: Accept-Encoding

{\˚\k\\‘†ÖsÆ""4fca3f56d337d2057ce73a6dd5712d80"Accept-EncodingûíL∏±ÀÕ·p ÙÎ(,f
KEY: httpsGETmydomain.fi/ruoka/
3Content-Type: text/html; charset=UTF-8
Last-Modified: Thu, 13 Dec 2018 07:02:19 GMT
Expires: Thu, 13 Dec 2018 08:02:19 GMT
Pragma: public
Cache-Control: max-age=1696, public
ETag: "4fca3f56d337d2057ce73a6dd5712d80"
X-Powered-By: W3 Total Cache/0.9.7
Content-Encoding: gzip
Vary: Accept-Encoding

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Subject	Author	Posted
FastCGI cache file has too long header	Palvelin Postmaster via nginx	December 13, 2018 04:18AM
Re: FastCGI cache file has too long header	Maxim Dounin	December 13, 2018 09:32AM
Re: FastCGI cache file has too long header	Palvelin Postmaster via nginx	December 13, 2018 10:46AM
Re: FastCGI cache file has too long header	Maxim Dounin	December 14, 2018 09:02AM

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