Using Cronolog to split the tomcat log Apache log

1. Installing Cronolog

Official website Download: http://cronolog.org/usage.html

./configure

Make;make Install

Default installation Location:

# which Cronolog

/usr/local/sbin/cronolog

2. Configure the split Tomcat log

Edit the catalina.sh file under the Tomcat directory bin

# VI bin/catalina.sh

Find the following line

elif ["$" = "start"]; Then

......

Org.apache.catalina.startup.Bootstrap "[email protected]" start \

>> "$CATALINA _out" 2>&1 &

In this elif statement like this line has 2, the first is Tomcat with the "-security" parameter of the start, the second is the default Tomcat boot mode, that is, else the next part, only modify here. In order to use Cronolog cutting, we both modify.

In addition, the touch "$CATALINA _out" this line commented out.

The complete changes are as follows:

# touch "$CATALINA _out"

If ["$" = "-security"]; Then

If [$have _tty-eq 1]; Then

echo "Using Security Manager"

Fi

Shift

"$_runjava" "$LOGGING _config" $LOGGING _manager $JAVA _opts $CATALINA _opts \

-djava.endorsed.dirs= "$JAVA _endorsed_dirs"-classpath "$CLASSPATH" \

-djava.security.manager \

-djava.security.policy== "$CATALINA _base"/conf/catalina.policy \

-dcatalina.base= "$CATALINA _base" \

-dcatalina.home= "$CATALINA _home" \

-djava.io.tmpdir= "$CATALINA _tmpdir" \

Org.apache.catalina.startup.Bootstrap "[email protected]" Start | /usr/local/sbin/cronolog/usr/local/tomcat/logs/catalina.%y-%m-%d.out >>/dev/null &

# >> "$CATALINA _out" 2>&1 &

Else

"$_runjava" "$LOGGING _config" $LOGGING _manager $JAVA _opts $CATALINA _opts \

-djava.endorsed.dirs= "$JAVA _endorsed_dirs"-classpath "$CLASSPATH" \

-dcatalina.base= "$CATALINA _base" \

-dcatalina.home= "$CATALINA _home" \

-djava.io.tmpdir= "$CATALINA _tmpdir" \

Org.apache.catalina.startup.Bootstrap "[email protected]" Start 2>&1 | /usr/local/sbin/cronolog/usr/local/tomcat/logs/catalina.%y%m%d.out >>/dev/null &

# >> "$CATALINA _out" 2>&1 &

Fi

Save exit

Restart the Tomcat service

[Email protected] tomcat]# bin/shutdown.sh

Using catalina_base:/usr/local/tomcat

Using Catalina_home:/usr/local/tomcat

Using Catalina_tmpdir:/usr/local/tomcat/temp

Using Jre_home:/usr/java/jdk1.6.0_29

Using CLASSPATH:/usr/local/tomcat/bin/bootstrap.jar

[Email protected] tomcat]# bin/startup.sh

Using catalina_base:/usr/local/tomcat

Using Catalina_home:/usr/local/tomcat

Using Catalina_tmpdir:/usr/local/tomcat/temp

Using Jre_home:/usr/java/jdk1.6.0_29

Using CLASSPATH:/usr/local/tomcat/bin/bootstrap.jar

To see if the log directory generates catalina.yymmdd.out log files

-rw-r--r--1 root root 10537 Jul 10:50 catalina.20140730.out

Configuration Cronolog completed, observing whether there is a new catalina.yymmdd.out log file generated every day, periodically deleting older log files.

Note that Cronolog generates a new log file instead of a fixed-point build when the Catalina.out log has new content.

3. Split Apache logs

Edit the Apache default profile httpd.conf, find the Apache log location, and modify it as follows (this example is divided by day):

Errorlog "|/usr/local/sbin/cronolog/var/log/httpd/error_%y-%m-%d.log"

Customlog "|/usr/local/sbin/cronolog/var/log/httpd/access_%y-%m-%d.log" combined

Save

Restart Apache Service

#/etc/init.d/httpd Restart

stopping httpd: [OK]

Starting httpd: [OK]

Note: Apache log directory permissions by default is 700, can only generate Error_xxxxxx.log log, unable to produce access_xxxxxx.log log, we need to give/VAR/LOG/HTTPD directory other user w permission

# chmod O+W/VAR/LOG/HTTPD

You can see that the Access_xxxxxx.log log is generated in the/VAR/LOG/HTTPD directory.

Knowledge Point: Configured with Cronolog, it does not generate a new log as scheduled at the specified time, and it generates a log precondition that new log files will not be created until new content is available in the log, and no new logs will be created without log content updates.

3.1 Testing

If you want to see the effect quickly, you can follow the following configuration, cycle set to 1 minutes, new log file name plus hour minutes

Customlog "|/usr/local/sbin/cronolog--period=1minutes/var/log/httpd/access_%y-%m-%d-%h%m.log" combined

Restart Apache service to make it effective

Then access the HTTP page so that the new log content appears, as long as there is log update, will generate a new Access_xxxxxx.log file per minute, no log updates will not generate new logs.

-rw-r--r--1 root root 17280 2 01:10 access_2014-08-02-0100.log

-rw-r--r--1 root root 28620 2 01:13 access_2014-08-02-0110.log

-rw-r--r--1 root root 2160 2 01:18 access_2014-08-02-0115.log

Appendix

Cronolog Use Syntax:

Customlog "|/path/to/cronolog [OPTIONS] logfile-spec" [format]

Common options

--period= time

The unit must indicate that the available units include seconds, minutes, hours, days, weeks, months.

Common format

SpecifierDescription

Percenta literal%character

%na new-line character

%ta horizontal tab character

Time fields

%HHour (00..23)

%IHour (01..12)

%pThe locale ' s AM or PM indicator

%Mminute (00..59)

%ssecond (00..61, which allows for leap seconds)

%xThe locale ' s time representation (e.g.: "15:12:47")

%Ztime zone (e.g GMT), or nothing if the time zone cannot be determined

Date fields

%aThe locale ' s abbreviated weekday name (e.g.: Sun.. Sat)

%AThe locale ' s full weekday name (e.g.: Sunday. Saturday)

%bThe locale ' s abbreviated month name (e.g.: Jan. DEC)

%BThe locale ' s full month name, (e.g.: January.. December)

%cThe locale ' s date and time (e.g.: "Sun Dec 14:12:47 GMT 1996")

%dDay of month (01.. 31)

%jDay of the Year (001:366)

%mMonth (01:12)

%uWeek of the year with Sunday as first day of week (00..53, where Week 1 is the week containing the first Sunday of the year)

%WWeek of the year with Monday as first day of week (00..53, where Week 1 is the week containing the first Monday of the year)

%wDay of week (0:6, where 0 corresponds to Sunday)

%xlocale ' s date representation (e.g. today in Britain: "15/12/96")

%yYear without the Century (00:99)

%YYear with the Century (1970:2038)

This article is from the "-it commune" blog, please be sure to keep this source http://guangpu.blog.51cto.com/3002132/1566433

Using Cronolog to split the tomcat log Apache log