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Re: [PATCH 21 of 31] Fix cpu hog with all upstream servers marked "down"

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Oded Arbel

August 15, 2011 02:46PM

----- Original Message -----
> Ip hash balancer doesn't support "backup" servers (and it will
> complain loudly if you place "ip_hash" before servers). Could you
> please check if you still see the problem after removing backup
> server?

After removing the backup server, I don't get the 100% cpu behavior again. Thanks for noting that.

> You mean the one from Evan Miller's upstream hash module, as
> available at http://wiki.nginx.org/HttpUpstreamRequestHashModule?

Indeed. It is not enabled in our default configuration and used in the testing environment. I don't expect it to be related to the problem but mentioned it for completeness.

--
Oded <oded@geek.co.il>

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Subject	Author	Views	Posted
[PATCH 00 of 31] generic patch queue for 1.0.4	Maxim Dounin	3866	June 27, 2011 01:10PM
[PATCH 01 of 31] Cache: fix another "stalled cache updating" alert	Maxim Dounin	1021	June 27, 2011 01:10PM
Re: [PATCH 01 of 31] Cache: fix another "stalled cache updating" alert	Kirill A. Korinskiy	995	June 27, 2011 02:06PM
Re: [PATCH 01 of 31] Cache: fix another "stalled cache updating" alert	Kirill A. Korinskiy	1010	June 27, 2011 03:00PM
[PATCH 02 of 31] Fastcgi: fix fastcgi_param with "HTTP_"	Maxim Dounin	1037	June 27, 2011 01:10PM
[PATCH 03 of 31] Bugfix: https wasn't working on systems with 32-bit off_t	Maxim Dounin	1177	June 27, 2011 01:10PM
[PATCH 04 of 31] Upstream: fix request finalization if client timed out	Maxim Dounin	949	June 27, 2011 01:10PM
[PATCH 05 of 31] Upstream: properly allocate memory for tried flags	Maxim Dounin	1045	June 27, 2011 01:10PM
[PATCH 06 of 31] Complain on invalid log levels	Maxim Dounin	1274	June 27, 2011 01:10PM
[PATCH 07 of 31] Fix incorrect 201 replies from dav module	Maxim Dounin	1046	June 27, 2011 01:10PM
[PATCH 08 of 31] Fix double content when return is used in error_page redirection	Maxim Dounin	1118	June 27, 2011 01:10PM
[PATCH 09 of 31] Drop incorrect special case for return 204	Maxim Dounin	1079	June 27, 2011 01:10PM
[PATCH 10 of 31] Clear old Location header (if any) while adding new one	Maxim Dounin	1051	June 27, 2011 01:10PM
[PATCH 11 of 31] Better handle various per-server ssl options with SNI	Maxim Dounin	1197	June 27, 2011 01:10PM
[PATCH 12 of 31] Better handle late upstream creation	Maxim Dounin	964	June 27, 2011 01:12PM
[PATCH 13 of 31] Gzip filter: handle empty flush buffers	Maxim Dounin	1120	June 27, 2011 01:12PM
[PATCH 14 of 31] Fix connection drops with AIO	Maxim Dounin	904	June 27, 2011 01:12PM
[PATCH 15 of 31] Fix socket leak with "aio sendfile" and "limit_rate" directives	Maxim Dounin	1122	June 27, 2011 01:12PM
[PATCH 16 of 31] Correctly handle Content-Encoding set from perl	Maxim Dounin	901	June 27, 2011 01:12PM
[PATCH 17 of 31] Gzip static: "always" parameter in "gzip_static" directive	Maxim Dounin	1087	June 27, 2011 01:12PM
Re: [PATCH 17 of 31] Gzip static: "always" parameter in "gzip_static" directive	Zhu Qun-Ying	958	June 27, 2011 02:02PM
Re: [PATCH 17 of 31] Gzip static: "always" parameter in "gzip_static" directive	Maxim Dounin	1062	June 28, 2011 06:34AM
[PATCH 18 of 31] Memcached: memcached_gzip_flag directive	Maxim Dounin	1014	June 27, 2011 01:12PM
[PATCH 19 of 31] Mail: handle smtp multiline replies	Maxim Dounin	1001	June 27, 2011 01:12PM
[PATCH 20 of 31] Additional headers for proxy_ignore_headers/fastcgi_ignore_headers	Maxim Dounin	1120	June 27, 2011 01:12PM
[PATCH 21 of 31] Fix cpu hog with all upstream servers marked "down"	Maxim Dounin	950	June 27, 2011 01:12PM
Re: [PATCH 21 of 31] Fix cpu hog with all upstream servers marked "down"	Oded Arbel	983	August 15, 2011 11:00AM
Re: [PATCH 21 of 31] Fix cpu hog with all upstream servers marked "down"	Maxim Dounin	983	August 15, 2011 12:00PM
Re: [PATCH 21 of 31] Fix cpu hog with all upstream servers marked "down"	lanshun zhou	928	August 15, 2011 01:52PM
Re: [PATCH 21 of 31] Fix cpu hog with all upstream servers marked "down"	Oded Arbel	1011	August 15, 2011 11:10AM
Re: [PATCH 21 of 31] Fix cpu hog with all upstream servers marked "down"	Oded Arbel	1261	August 15, 2011 02:46PM
[PATCH 22 of 31] Cache: correctly set conf_file while adding paths	Maxim Dounin	1167	June 27, 2011 01:12PM
[PATCH 23 of 31] Upstream: fix proxy_store leaving temporary files for subrequests	Maxim Dounin	1264	June 27, 2011 01:12PM
[PATCH 24 of 31] Cache: fix sending of empty responses	Maxim Dounin	1037	June 27, 2011 01:14PM
[PATCH 25 of 31] Cache: fix sending of stale responses	Maxim Dounin	1162	June 27, 2011 01:14PM
[PATCH 26 of 31] Variables: honor no_cacheable for not_found variables	Maxim Dounin	1132	June 27, 2011 01:14PM
[PATCH 27 of 31] Core: protect from subrequest loops	Maxim Dounin	1053	June 27, 2011 01:14PM
[PATCH 28 of 31] Core: resolve various cycles with named locations and post_action	Maxim Dounin	1092	June 27, 2011 01:14PM
[PATCH 29 of 31] Autoindex: escape '?' in file names	Maxim Dounin	981	June 27, 2011 01:14PM
[PATCH 30 of 31] Autoindex: escape html in file names	Maxim Dounin	868	June 27, 2011 01:14PM
[PATCH 31 of 31] Unbreak build with embedded perl and --with-openssl	Maxim Dounin	904	June 27, 2011 01:14PM
Re: [PATCH 00 of 31] generic patch queue for 1.0.4	António P. P. Almeida	943	June 27, 2011 10:10PM
Re: [PATCH 00 of 31] generic patch queue for 1.0.4	Maxim Dounin	1126	June 28, 2011 10:40AM
Re: [PATCH 00 of 31] generic patch queue for 1.0.4	fanboy	976	June 28, 2011 01:48AM
Re: [PATCH 00 of 31] generic patch queue for 1.0.4	Maxim Dounin	1195	June 28, 2011 11:00AM

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