Hi, I get following error when I try to use "compress" function of zlib in "rotatelogs.c" . I have included "zlib.h" in rotatelogs.c .
/home/paras/httpd-2.0.55/support/rotatelogs.c:294: undefined reference to `compress' collect2: ld returned 1 exit status Is it linking error ? where should I make the changes to eliminate this error? Thank you. -Paras On Thu, Jan 22, 2009 at 3:08 PM, Rainer Jung <rainer.j...@kippdata.de> wrote: > On 22.01.2009 08:38, Paras Fadte wrote: >> >> Can anyone respond to this query of mine? > > I don't have a very nice solution. > > I expect you need to create something on your own, using the fact, that the > pipe syntax in httpd let's you pass the log information to any external > logger you like. > > I expect you would need to create a rotate and compress solution yourself. > > The problem is: if you first pipe through rotatelogs, then the name of the > file changes each time it rotates, so an easy compress solution is a bit > difficult. If you first pipe through compress/gzip, then the data looses > it's text line structure. In both cases, one would have to solve the > buffering issue. > > Most people compress via cron jobs, and not on the fly. Please try the users > list to find more ideas. If you don't find a solution, you might file an > enhancement request in bugzilla. > > Regards, > > Rainer > >> On Wed, Jan 21, 2009 at 8:15 PM, Paras Fadte<plf...@gmail.com> wrote: >>> >>> Thanks for the response. >>> >>> Noticed that graceful apache restart tends to flush the buffer to log >>> when gzip is used . Can you please shed some light on combining/using >>> gzip and rotatelogs utility together ? >>> >>> -Paras >>> >>> On Wed, Jan 21, 2009 at 7:46 PM, Rainer Jung<rainer.j...@kippdata.de> >>> wrote: >>>> >>>> On 21.01.2009 13:01, Paras Fadte wrote: >>>>> >>>>> I tried this and It creates "mydomain.com-access_log.gz" but doesn't >>>>> seem to update it. >>>> >>>> That's the buffering of gzip I mentioned. >>>> >>>> Run /path/to/httpd/bin/ab -n 50000 -c 10 -k http://myserver:myport/ >>>> >>>> and you'll see data arriving. >>>> >>>> Regards, >>>> >>>> Rainer >>>> >>>>> On Wed, Jan 21, 2009 at 4:27 PM, Rainer Jung<rainer.j...@kippdata.de> >>>>> wrote: >>>>>> >>>>>> On 21.01.2009 07:09, Paras Fadte wrote: >>>>>>> >>>>>>> Hi , >>>>>>> >>>>>>> Does something like following work in Apache/2.0.55 ? >>>>>>> >>>>>>> CustomLog "|/bin/gzip -c >>>>>>>>> >>>>>>>>> /home/mydir/apache/logs/mydomain.com-access_log.gz" combined >>>>>>> >>>>>>> In errorlog it says : >>>>>>> >>>>>>> piped log program '/bin/gzip -c >>>>>>>>> >>>>>>>>> /home/mydir/apache/logs/mydomain.com-access_log.gz' failed >>>>>>> >>>>>>> unexpectedly >>>>>>> gzip:>>/home/mydir/apache/logs/mydomain.com-access_log.gz: No such >>>>>>> file or directory >>>>>>> >>>>>>> >>>>>>> What could be the issue here ? >>>>>> >>>>>> It does work for me with Apache 2.2.x. Be sure to add whitespace >>>>>> before >>>>>> and >>>>>> after ">>" (although that wasn't necessary for 2.2.x). >>>>>> >>>>>> If it doesn't work for 2.0, you can use the following workaround, that >>>>>> should do it: create gzip.sh (executable shell script) with the >>>>>> content: >>>>>> >>>>>> #!/bin/sh >>>>>> gzip -c>> $1 >>>>>> >>>>>> and use "|/path/to/gzip.sh mylogfile" in the CustomLog. >>>>>> >>>>>> Caution: it's possible to loose log lines when restarting or stopping >>>>>> the >>>>>> web server, because gzip buffers data and it might be implementation >>>>>> dependent, whether gzip flushes them when signaled to stop. My tests >>>>>> show, >>>>>> that there will be some information lost. >>>>>> >>>>>> I think this discussion belongs to the users list. When proceeding the >>>>>> discussion there, also mention which OS you are using. >>>>>> >>>>>> Regards, >>>>>> >>>>>> Rainer > >
