elk收集tomcat的日志

logstash收集tomcat的日志

不要修改下tomcat中server.xml的日志格式，否则tomcat无法启动，试过多次，不行，就用自带的日志让logstash去收集

首先给tomcat日志授权，否则logstash无权读取日志文件

[root@bogon bin]# ls -l /usr/local/tomcat/logs/

total

-rw-r-----  root root  Feb  : catalina.--.log

-rw-r-----  root root  Feb  : catalina.out

-rw-r-----  root root       Feb  : host-manager.--.log

-rw-r-----  root root    Feb  : localhost.--.log

-rw-r-----  root root    Feb  : localhost_access_log.--.txt

-rw-r-----  root root       Feb  : manager.--.log

[root@bogon bin]# chmod  /usr/local/tomcat/logs/*

[root@bogon bin]# ls -l /usr/local/tomcat/logs/

total 208

-rwxrwxrwx 1 root root 101390 Feb 12 02:42 catalina.2019-02-12.log

-rwxrwxrwx 1 root root 101500 Feb 12 02:42 catalina.out

-rwxrwxrwx 1 root root      0 Feb 12 01:40 host-manager.2019-02-12.log

-rwxrwxrwx 1 root root   2454 Feb 12 02:42 localhost.2019-02-12.log

-rwxrwxrwx 1 root root   2421 Feb 12 03:07 localhost_access_log.2019-02-12.txt

-rwxrwxrwx 1 root root      0 Feb 12 01:40 manager.2019-02-12.log

现在要收集localhost_access_log.2019-02-12.txt日志内容，步骤如下：

配置logstash的语法规则，来收集tomcat日志：

cat> /home/logstash-6.3.0/config/tomcat_test.conf<<EOF

input {

     file {

        path => ["/usr/local/tomcat/logs/localhost_access_log.2019-02-12.txt"]

        type => "tomcat_log"

        start_position => "beginning"

codec => json

     }

}

filter {

date {

match => [ "timestamp" , "YYYY-MM-dd HH:mm:ss" ]

}

}

output {

elasticsearch {

        hosts => ["192.168.0.91:9200"]

        index => "tomcat-pc-%{+YYYY.MM.dd}"

    }

    stdout {

codec => rubydebug

    }

}

EOF

然后测试下有没有语法错误

/home/logstash-6.3.0/bin/logstash -t -f /home/logstash-6.3.0/config/tomcat_test.conf --config.test_and_exit

开始启动

nohup /home/logstash-6.3.0/bin/logstash -f /home/logstash-6.3.0/config/tomcat_test.conf &

启动非常慢，需要几分钟

查看logstash进程

[root@bogon tomcat]# ps -ef |grep logstash

root      22853   5194 99 03:03 pts/1    00:02:02 /bin/java -Xms1g -Xmx1g -XX:+UseParNewGC -XX:+UseConcMarkSweepGC -XX:CMSInitiatingOccupancyFraction=75 -XX:+UseCMSInitiatingOccupancyOnly -Djava.awt.headless=true -Dfile.encoding=UTF-8 -Djruby.compile.invokedynamic=true -Djruby.jit.threshold=0 -XX:+HeapDumpOnOutOfMemoryError -Djava.security.egd=file:/dev/urandom -cp /home/logstash-6.3.0/logstash-core/lib/jars/commons-compiler-3.0.8.jar:/home/logstash-6.3.0/logstash-core/lib/jars/google-java-format-1.1.jar:/home/logstash-6.3.0/logstash-core/lib/jars/guava-19.0.jar:/home/logstash-6.3.0/logstash-core/lib/jars/jackson-annotations-2.9.5.jar:/home/logstash-6.3.0/logstash-core/lib/jars/jackson-core-2.9.5.jar:/home/logstash-6.3.0/logstash-core/lib/jars/jackson-databind-2.9.5.jar:/home/logstash-6.3.0/logstash-core/lib/jars/jackson-dataformat-cbor-2.9.5.jar:/home/logstash-6.3.0/logstash-core/lib/jars/janino-3.0.8.jar:/home/logstash-6.3.0/logstash-core/lib/jars/jruby-complete-9.1.13.0.jar:/home/logstash-6.3.0/logstash-core/lib/jars/log4j-api-2.9.1.jar:/home/logstash-6.3.0/logstash-core/lib/jars/log4j-core-2.9.1.jar:/home/logstash-6.3.0/logstash-core/lib/jars/log4j-slf4j-impl-2.9.1.jar:/home/logstash-6.3.0/logstash-core/lib/jars/logstash-core.jar:/home/logstash-6.3.0/logstash-core/lib/jars/org.eclipse.core.commands-3.6.0.jar:/home/logstash-6.3.0/logstash-core/lib/jars/org.eclipse.core.contenttype-3.4.100.jar:/home/logstash-6.3.0/logstash-core/lib/jars/org.eclipse.core.expressions-3.4.300.jar:/home/logstash-6.3.0/logstash-core/lib/jars/org.eclipse.core.filesystem-1.3.100.jar:/home/logstash-6.3.0/logstash-core/lib/jars/org.eclipse.core.jobs-3.5.100.jar:/home/logstash-6.3.0/logstash-core/lib/jars/org.eclipse.core.resources-3.7.100.jar:/home/logstash-6.3.0/logstash-core/lib/jars/org.eclipse.core.runtime-3.7.0.jar:/home/logstash-6.3.0/logstash-core/lib/jars/org.eclipse.equinox.app-1.3.100.jar:/home/logstash-6.3.0/logstash-core/lib/jars/org.eclipse.equinox.common-3.6.0.jar:/home/logstash-6.3.0/logstash-core/lib/jars/org.eclipse.equinox.preferences-3.4.1.jar:/home/logstash-6.3.0/logstash-core/lib/jars/org.eclipse.equinox.registry-3.5.101.jar:/home/logstash-6.3.0/logstash-core/lib/jars/org.eclipse.jdt.core-3.10.0.jar:/home/logstash-6.3.0/logstash-core/lib/jars/org.eclipse.osgi-3.7.1.jar:/home/logstash-6.3.0/logstash-core/lib/jars/org.eclipse.text-3.5.101.jar:/home/logstash-6.3.0/logstash-core/lib/jars/slf4j-api-1.7.25.jar org.logstash.Logstash -t -f /home/logstash-6.3.0/config/tomcat_test.conf --config.test_and_exit

root      22916  18873  0 03:04 pts/3    00:00:00 grep logstash

查看elk端口

[root@bogon tomcat]# netstat -tnlp

Active Internet connections (only servers)

Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name

tcp        0      0 192.168.0.91:5601       0.0.0.0:*               LISTEN      15053/node

tcp        0      0 192.168.0.91:9100       0.0.0.0:*               LISTEN      14232/grunt

tcp        0      0 0.0.0.0:22              0.0.0.0:*               LISTEN      943/sshd

tcp        0      0 127.0.0.1:25            0.0.0.0:*               LISTEN      1173/master

tcp6       0      0 127.0.0.1:9600          :::*                    LISTEN      23343/java

tcp6       0      0 127.0.0.1:8005          :::*                    LISTEN      21582/java

tcp6       0      0 :::8009                 :::*                    LISTEN      21582/java

tcp6       0      0 :::8080                 :::*                    LISTEN      21582/java

tcp6       0      0 192.168.0.91:9200       :::*                    LISTEN      14105/java

tcp6       0      0 192.168.0.91:9300       :::*                    LISTEN      14105/java

tcp6       0      0 :::22                   :::*                    LISTEN      943/sshd

tcp6       0      0 ::1:25                  :::*                    LISTEN      1173/master  

可以看到logstash启动后随机生成了一个9600端口

elasticsearch的head插件查看

先查看概览：



再查看数据浏览：



配置kibana查看日志

首先查看索引：

cat /home/logstash-6.3.0/config/tomcat_test.conf
input {
file {
path => ["/usr/local/tomcat/logs/localhost_access_log.2019-02-12.txt"]
type => "tomcat_log"
start_position => "beginning"
codec => json
}
}
filter {
date {
match => [ "timestamp" , "YYYY-MM-dd HH:mm:ss" ]
}
}
output {
elasticsearch {
hosts => ["192.168.0.91:9200"]
index => "tomcat-pc-%{+YYYY.MM.dd}"
}
stdout {
codec => rubydebug
}
}

里面的index => "tomcat-pc-%{+YYYY.MM.dd}" 就是索引，这个索引一会配置kibana时候需要用到。

配置Kibana获得日志
















参照文档：

https://www.cnblogs.com/cjsblog/p/9476813.html

https://blog.csdn.net/ZHANG_H_A/article/details/53129565

http://blog.51cto.com/jinlong/2055379

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