Preface
If you use Tomcat, you will definitely encounter this problem: the file is too large.
It is the log file generated by Tomcat by default. It will gradually grow and continue to grow over time, even reaching a size of several G or dozens of G. Because the files are too large, not only occupy the system's storage, we will not be able to use regular editing tools to view them, which seriously affects the system's maintenance work.
In this regard, the following solutions to solve the problem of excessive files have emerged.
Violent
Unless logs are not required,
1. Manual version
Each time the hard disk space of tomcat is monitored to decrease and reaches the threshold, manually log in to the server, switch to tomcat logs, and manually clear it
echo " " >
2. Script version
Write scripts, put them in scheduled tasks, and clear them regularly
crontab -e 0 24 * * * sh /root/qin_catalina. vim qin_catalina. #!/usr/bin/bash echo " " >
Technical
1. Log Cutting Tool Edition 0.1
Use the cronolog log segmentation tool to split Tomcat's log files
<1>Download cronolog and install
wget /download/cronolog-1.6. (Chinese servers may not be downloaded or downloaded slowly，You can download it to the overseas server first) tar zxvf cronolog-1.6. ./cronolog-1.6.2/configure make make install (Installed by default in/usr/local/sbinDown)
<2>.Configuration
in tomcat/bin/
"$@" start \ >> "$CATALINA_BASE"/logs/ 2&1 & Change to: "$@" start \ |/usr/local/sbin/cronolog "$CATALINA_BASE"/logs/catalina.%Y-%m-% >> /dev/null 2>&1 & or "$@" start 2>&1 \ | /usr/local/sbin/cronolog "$CATALINA_BASE"/logs/catalina.%Y-%m-% >> /dev/null & And comment touch "$CATALINA_OUT"
<3>Restart Tomcat
Tomcat output log file is successfully divided, and the output log file format becomes: catalina.
1. Log Cutting Tool Edition 0.2
The logrotate program after CentOS6.5 can solve the problem of log rotation
<1> Create a new tomcat file in the /etc// directory
cat >/etc//tomcat
/usr/local/tomcat/logs/{ Files to be rotated
copytruncate Create a new copy，Truncate the source file
daily Daily document rotation
rotate 7 Retain at most7A copy
missingok Files are missing，No errors in rotation
compress Using compression
size 500M When the file is larger than16MB，Just turn
}Other parameters:
compress �
nocompress
copytruncate
nocopytruncate
create mode owner group �
nocreate
delaycompress
nodelaycompress Overwrite the delaycompress option and dump it while compressing.
Missingok
errors address
ifempty
notifempty �
mail address
nomail
olddir directory �
noolddir �
sharedscripts If this is not configured, the script will be executed once after each log rotation
prerotate �
postrotate � Must be independent
daily
weekly
monthly
rotate count
dateext
dateformat .%s
size (or minsize) log-size dumped when the log file reaches the specified size. log-size can specify bytes (default) and KB (sizek) or
<2> When the above operations are performed automatically, it can also be manually cut
logrotate /etc/
If you only rotate the tomcat configuration file, you need to specify the file
logrotate --force /etc//tomcat
<3>Delete the log to be cleaned
Manually search for log files that need to be cleaned
cd /usr/local/tomcat/logs rm -rf .
2. Log cutting script version
Use cron to regularly backup the current one every day and then clear his content;
<1>crontab -e
01 0 * * * sh /root/qie_catalina.
<2>cat qie_catalina. Reference script
#!/bin/bash DATE=`date "+%Y-%m-%d"` cp /etc/tomcat/logs/ /etc/tomcat/logs/`.$DATE` wait echo " " >
3. Modify log level version
Log Level:
SEVERE (highest value) > WARNING > INFO > CONFIG > FINE > FINER > FINEST (lowest value)
<1>Modify the conf/log configuration file and set the level level to WARNING to reduce the log output. It can also be set to OFF and directly disabled.
= WARNING
= ${}/logs
= catalina.This is the end of this article about Tomcat solving the problem of excessive file size. For more related Tomcat files, please search for my previous articles or continue browsing the related articles below. I hope everyone will support me in the future!