[SAC] xblade14-2: Service Temporarily Unavailable (Apache) - gdal, grass, qgis, rso, mapbuilder

[Daniel Morissette]

Markus,

Could this be related to the connection throttling setup in 
http://trac.osgeo.org/osgeo/ticket/216 kicking in because the page 
generates too many connections?

Daniel


Markus Neteler wrote:
> Hi SAC,
> 
> I have the problem that this page (which contains a series of screenshot
> thumbnails) doesn't load completely - happens frequently to me on
> that page:
> http://grass.osgeo.org/screenshots/gui.php
> 
> Reloading it a few times lead to 503
> 
> Service Temporarily Unavailable
> 
> The server is temporarily unable to service your request due to
> maintenance downtime or capacity problems. Please try again later.
> Apache/2.0.54 (Fedora) Server at grass.osgeo.org Port 80
> 
> [root at xblade14-2 httpd]# tail grass_error_log
> [Mon Sep 15 01:24:19 2008] [error] [client 87.5.230.95] Rejecting
> client at 87.5.230.95, referer:
> http://grass.osgeo.org/screenshots/gui.php
> [Mon Sep 15 01:24:19 2008] [error] [client 87.5.230.95] Rejecting
> client at 87.5.230.95, referer:
> http://grass.osgeo.org/screenshots/gui.php
> [Mon Sep 15 01:24:19 2008] [error] [client 87.5.230.95] Rejecting
> client at 87.5.230.95, referer:
> http://grass.osgeo.org/screenshots/gui.php
> [Mon Sep 15 01:24:19 2008] [error] [client 87.5.230.95] Rejecting
> client at 87.5.230.95, referer:
> http://grass.osgeo.org/screenshots/gui.php
> [Mon Sep 15 01:24:19 2008] [error] [client 87.5.230.95] Rejecting
> client at 87.5.230.95, referer:
> http://grass.osgeo.org/screenshots/gui.php
> [Mon Sep 15 01:24:19 2008] [error] [client 87.5.230.95] Rejecting
> client at 87.5.230.95, referer:
> http://grass.osgeo.org/screenshots/gui.php
> [Mon Sep 15 01:24:19 2008] [error] [client 87.5.230.95] Rejecting
> client at 87.5.230.95, referer:
> http://grass.osgeo.org/screenshots/gui.php
> [Mon Sep 15 01:24:41 2008] [error] [client 87.5.230.95] Rejecting
> client at 87.5.230.95, referer:
> http://grass.osgeo.org/screenshots/index.php
> [Mon Sep 15 01:25:12 2008] [error] [client 141.223.191.205] Rejecting
> client at 141.223.191.205, referer:
> http://grass.osgeo.org/wiki/Main_Page
> [Mon Sep 15 01:25:12 2008] [error] [client 141.223.191.205] Rejecting
> client at 141.223.191.205, referer:
> http://grass.osgeo.org/wiki/Main_Page
> [root at xblade14-2 httpd]# host 87.5.230.95
> 95.230.5.87.in-addr.arpa domain name pointer
> host95-230-dynamic.5-87-r.retail.telecomitalia.it.
> 
> It seems that Apache is severly suffering.
> But the CPU(s) aren't doing much:
> 
> [neteler at xblade14-2 ~]$ w
>  01:24:49 up 47 days,  2:10,  1 user,  load average: 0.33, 0.45, 0.61
> USER     TTY      FROM              LOGIN@   IDLE   JCPU   PCPU WHAT
> neteler  pts/0    host95-230-dynam 01:21    1.00s  0.05s  0.02s w
> 
> [neteler at xblade14-2 ~]$ top
> top - 01:24:51 up 47 days,  2:10,  1 user,  load average: 0.30, 0.45, 0.61
> Tasks: 119 total,   1 running, 118 sleeping,   0 stopped,   0 zombie
> Cpu(s): 21.2% us,  2.4% sy,  0.3% ni, 68.9% id,  7.0% wa,  0.2% hi,  0.0% si
> Mem:   1034320k total,  1006748k used,    27572k free,    29760k buffers
> Swap:  2096472k total,   136612k used,  1959860k free,   396052k cached
> 
>   PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
>   850 neteler   15   0  4752 1520 1128 R  1.9  0.1   0:00.02 top
>     1 root      16   0  1744  512  488 S  0.0  0.0   0:03.69 init
>     2 root      34  19     0    0    0 S  0.0  0.0   0:02.16 ksoftirqd/0
> ...
> 
> [root at xblade14-2 httpd]# grep 'Rejecting client' grass_error_log | wc -l
> 4869
> 
> Any clue? Apache seems to be messed up:
> 
> [root at xblade14-2 httpd]# grep -l 'Rejecting client' *_error_log
> gdal_error_log
> grass_error_log
> mapbuilder_error_log
> qgis_error_log
> rso_error_log
> 
> It affects all of us who are hosted there.
> 
> Markus
> _______________________________________________
> Sac mailing list
> Sac at lists.osgeo.org
> http://lists.osgeo.org/mailman/listinfo/sac


-- 
Daniel Morissette
http://www.mapgears.com/