2010/12/25 André Warnier <a...@ice-sa.com> > The logging page which I pointed you to, does not say that Tomcat uses > log4j. > It says that you /can/ configure Tomcat to use log4j, instead of the > default "juli" logging. It even provides instructions to do so. > > The AccessLogValve documentation page does not say either that it uses > log4j. > But what it does say at the very beginning, is that the output file is > changed every day at midnight. So if you only read the files up to last > night at midnight, you will never encounter the problem that something is > still writing to it. > > Also, I do not know what your ultimate purpose is, but there exist already > several open-source programs which read a logfile in the format produced by > the Tomcat AccessLogValve, parse it, and produce nice graphical statistics > out of it (like webalizer or awstats). Maybe you are re-inventing something > which already exists ? >
Unfortunately yes,our boss want our own analyzer system based on java. :( > > Web access statistics are not usually something which needs to be accurate > in real-time. > Having Tomcat writing them directly to a database may have a noticeable > impact on your applications performance. That's why this is something > usually done off-line. > In fact,I just analyzer the logs before yesterday,it is also my boss who require the real-time(almost) analysis .:) Thank you anyway,although having Tomcat writing logs directly to a database may cause performance problem,it is another way. My boss will decide it :) > > > > maven apache wrote: > >> Perhaps I’m not making myself clear,in fact I want to do some processing >> work to the the logs created by the access log >> valve< >> http://tomcat.apache.org/tomcat-6.0-doc/config/valve.html#Access_Log_Valve >> >to >> >> database. >> >> For example:the log: >> >> 10.33.2.45 - - [08/Dec/2010:08:44:43 +0800] "GET /poi.txt HTTP/1.1" >> 200 672 "-" "Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; >> rv:1.9.2.8) Gecko/20100722 Firefox/3.6.8" >> >> will be saved in the db in this format: >> >> ip time method >> uri status bytes browser platform >> >> ------------------------------------------------------------------------------------------------------------------------------------------------------------ >> >> 10.33.2.45 2010-10-08 08:44:43 GET /poi.txt 200 672 >> Firefox/3.6.8 winxp >> >> And now I meet some problems when I read the log file like: >> localhost_access_log.2010-12-20.txt >> >> I read the file line by line,but sometime I can not get a complete line >> since this file may be written in. >> >> So,someone suggest me add a db appender(log4j),which will do the procesing >> work and then export the log to db. >> >> ------- >> >> Now,from the link you give me ,it seems that tomcat does use log4j to >> create >> its access log. >> >> >> 2010/12/25 André Warnier <a...@ice-sa.com> >> >> Hi. >>> >>> It is not very clear what you are asking, specially since you do not >>> specify which version of Tomcat your are using, under which Java version >>> and >>> on which platform. >>> >>> Assuming you are using Tomcat 6.0.x, the on-line documentation for >>> logging >>> is here : >>> >>> http://tomcat.apache.org/tomcat-6.0-doc/logging.html >>> >>> Maybe read it first, and then come back if you have a specific question ? >>> (But then try to specify the question clearly) >>> >>> maven apache wrote: >>> >>> Hi: >>>> I wonder how is the tomcat log generated,I mean the log like this; >>>> >>>> localhost_access_log.2010-12-20.txt >>>> >>>> I want to export the logs to db. Some one suggestion I directly add >>>> one Appender <http://logging.apache.org/log4j/1.2/apidocs/index.html> >>>> >>>> if tomcat also uses log4j to generate the logs and I have access to >>>> the tomcat's log4j config file. >>>> >>>> More details can be found in this post: >>>> >>>> http://stackoverflow.com/questions/4486620/randomaccessfile-probelm >>>> >>>> So I wonder if this is possible? >>>> >>>> >>>> --------------------------------------------------------------------- >>> To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org >>> For additional commands, e-mail: users-h...@tomcat.apache.org >>> >>> >>> >> > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > For additional commands, e-mail: users-h...@tomcat.apache.org > >
