This httpd has been modified but we haven't touched core httpd or the logging at all. Almost all of our changes are isolated into a custom module and mod_proxy. I'll try and get it under a tracer/debugger and report back. Thanks again. 2011/12/7 Jeff Trawick <trawick@xxxxxxxxx>: > On Wed, Dec 7, 2011 at 9:15 AM, Rob Landrito <rlandrito@xxxxxxxxx> wrote: >> Thanks for your suggestions. httpd starts cleanly with nouser and >> nogroup fine as long as I'm not trying to pipe logs. If I only try to >> pipe access_log and not error_log, httpd starts but no access logs are >> created (I'm sending requests to the servers). The only difference I >> see in error_log are the following two lines: >> >> piped log program '/opt/httpd/bin/rotatelogs -fl >> /opt/httpd/logs/access_log.%d-%b 86400' failed unexpectedly > > Run strace/truss/whatever against a running rotatelogs process before > it has to handle an access log entry, see what is happening at syscall > level. > >> [Wed Dec 07 06:08:13 2011] [error] (22)Invalid argument: setting of group failed > > Weird. That's from apr_proc_create(), which might be called for a > piped logger. The implication seems to be that > apr_procattr_user_set() or apr_procattr_group_set() has been called, > but I don't see that in 2.2.x. > > Perhaps this httpd has some custom/vendor patches? Perhaps I didn't > look carefully enough at one bit of code or another? > >> >> They pop up a number of times throughout the error_log, presumably >> every time it's trying to write to access_log. I should note that I >> can run rotatelogs just fine from the command line as nouser or root. >> >> >> 2011/12/6 Jeff Trawick <trawick@xxxxxxxxx>: >>> On Tue, Dec 6, 2011 at 1:47 PM, Rob Landrito <rlandrito@xxxxxxxxx> wrote: >>>> Greetings, >>>> >>>> I'm trying to used piped logs as described here: >>>> http://httpd.apache.org/docs/2.2/logs.html#piped. The environment is >>>> httpd 2.2.11 on sco 6.0.0 (SCO_SV system 5 6.0.0 i386). I'm using >>>> User nouser >>>> Group nogroup >>>> >>>> Apache is unable to start, printing the following to stderr on startup: >>>> [Tue Dec 06 13:09:59 2011] [error] (22)Invalid argument: setting of >>>> group failedBroken Pipe >>> >>> That's the concatenation of two different error messages. >>> >>> Switch your error log temporarily to a file instead of to a piped >>> logger, and make sure everything starts up cleanly. (It looks like >>> you'll have to modify the Group directive.) >>> >>> Then try using a piped logger for the access log, again with a simpler >>> logging mechanism for the error log. >>> >>> >>>> >>>> It doesn't seem to matter what program I use on the other end of the >>>> pipe. I'm actually trying to use rotatelogs but echo seems to have >>>> the same problem. I've tried various setuid tricks just to see if I >>>> could pinpoint the issue. I suid'd the rotatelogs binary to root as >>>> well as nouser and neither seemed to help. I suspect that this >>>> problem is isolated to SCO. Any ideas would be appreciated. >>>> >>>> --------------------------------------------------------------------- >>>> The official User-To-User support forum of the Apache HTTP Server Project. >>>> See <URL:http://httpd.apache.org/userslist.html> for more info. >>>> To unsubscribe, e-mail: users-unsubscribe@xxxxxxxxxxxxxxxx >>>> " from the digest: users-digest-unsubscribe@xxxxxxxxxxxxxxxx >>>> For additional commands, e-mail: users-help@xxxxxxxxxxxxxxxx >>>> >>> >>> >>> >>> -- >>> Born in Roswell... married an alien... >>> >>> --------------------------------------------------------------------- >>> The official User-To-User support forum of the Apache HTTP Server Project. >>> See <URL:http://httpd.apache.org/userslist.html> for more info. >>> To unsubscribe, e-mail: users-unsubscribe@xxxxxxxxxxxxxxxx >>> " from the digest: users-digest-unsubscribe@xxxxxxxxxxxxxxxx >>> For additional commands, e-mail: users-help@xxxxxxxxxxxxxxxx >>> >> >> >> >> -- >> :wq! >> >> --------------------------------------------------------------------- >> The official User-To-User support forum of the Apache HTTP Server Project. >> See <URL:http://httpd.apache.org/userslist.html> for more info. >> To unsubscribe, e-mail: users-unsubscribe@xxxxxxxxxxxxxxxx >> " from the digest: users-digest-unsubscribe@xxxxxxxxxxxxxxxx >> For additional commands, e-mail: users-help@xxxxxxxxxxxxxxxx >> > > > > -- > Born in Roswell... married an alien... > > --------------------------------------------------------------------- > The official User-To-User support forum of the Apache HTTP Server Project. > See <URL:http://httpd.apache.org/userslist.html> for more info. > To unsubscribe, e-mail: users-unsubscribe@xxxxxxxxxxxxxxxx > " from the digest: users-digest-unsubscribe@xxxxxxxxxxxxxxxx > For additional commands, e-mail: users-help@xxxxxxxxxxxxxxxx > -- :wq! --------------------------------------------------------------------- The official User-To-User support forum of the Apache HTTP Server Project. 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