[转]tomcat 日志详解

转， 原文： https://www.cnblogs.com/operationhome/p/9680040.html

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1 tomcat  日志详解

1.1  tomcat 日志配置文件

　　tomcat 对应日志的配置文件：tomcat目录下的/conf/logging.properties。

　　tomcat 的日志等级有：日志输出级别：SEVERE (最高级别) > WARNING > INFO > CONFIG > FINE > FINER(精心) > FINEST (所有内容,最低级别)

　　tomcat  有五类日志 ：catalina、localhost、manager、admin、host-manager

　　/conf/logging.properties 配置文件：

 

1.2  tomcat 日志文件详解

　tomcat  有五类日志 ：catalina、localhost、manager、admin、host-manager

　1.2.1 catalina.out ：

catalina.out即标准输出和标准出错，所有输出到这两个位置的都会进入catalina.out，这里包含tomcat运行自己输出的日志以及应用里向console输出的日志。默认这个日志文件是不会进行自动切割的，我们需要借助其他工具进行切割（注意：catalina.out文件如果过大会影响）

#截取部分日志
19-Sep-2018 09:53:28.358 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Server version:        Apache Tomcat/8.0.53
19-Sep-2018 09:53:28.361 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Server built:          Jun 29 2018 14:42:45 UTC
19-Sep-2018 09:53:28.361 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Server number:         8.0.53.0
19-Sep-2018 09:53:28.361 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log OS Name:               Linux
19-Sep-2018 09:53:28.361 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log OS Version:            3.10.0-862.el7.x86_64
19-Sep-2018 09:53:28.361 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Architecture:          amd64
19-Sep-2018 09:53:28.361 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Java Home:             /usr/java/jdk1.8.0_131/jre
19-Sep-2018 09:53:28.361 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log JVM Version:           1.8.0_131-b11
19-Sep-2018 09:53:28.361 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log JVM Vendor:            Oracle Corporation
19-Sep-2018 09:53:28.361 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log CATALINA_BASE:         /opt/tomcat
19-Sep-2018 09:53:28.361 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log CATALINA_HOME:         /opt/tomcat
19-Sep-2018 09:53:28.361 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.util.logging.config.file=/opt/tomcat/conf/logging.properties
19-Sep-2018 09:53:28.362 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager
19-Sep-2018 09:53:28.362 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djdk.tls.ephemeralDHKeySize=2048
19-Sep-2018 09:53:28.362 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.protocol.handler.pkgs=org.apache.catalina.webresources
19-Sep-2018 09:53:28.362 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dignore.endorsed.dirs=
19-Sep-2018 09:53:28.362 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dcatalina.base=/opt/tomcat
19-Sep-2018 09:53:28.362 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dcatalina.home=/opt/tomcat
19-Sep-2018 09:53:28.362 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.io.tmpdir=/opt/tomcat/temp
19-Sep-2018 09:53:28.362 INFO [main] org.apache.catalina.core.AprLifecycleListener.lifecycleEvent The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: /usr/java/packages/lib/amd64:/usr/lib64:/lib64:/lib:/usr/lib
19-Sep-2018 09:53:28.676 INFO [main] org.apache.coyote.AbstractProtocol.init Initializing ProtocolHandler ["http-nio-8080"]
19-Sep-2018 09:53:28.716 INFO [main] org.apache.tomcat.util.net.NioSelectorPool.getSharedSelector Using a shared selector for servlet write/read
19-Sep-2018 09:53:28.731 INFO [main] org.apache.coyote.AbstractProtocol.init Initializing ProtocolHandler ["ajp-nio-8009"]
19-Sep-2018 09:53:28.732 INFO [main] org.apache.tomcat.util.net.NioSelectorPool.getSharedSelector Using a shared selector for servlet write/read
19-Sep-2018 09:53:28.746 INFO [main] org.apache.catalina.startup.Catalina.load Initialization processed in 1083 ms
19-Sep-2018 09:53:28.794 INFO [main] org.apache.catalina.core.StandardService.startInternal Starting service Catalina
19-Sep-2018 09:53:28.794 INFO [main] org.apache.catalina.core.StandardEngine.startInternal Starting Servlet Engine: Apache Tomcat/8.0.53
19-Sep-2018 09:53:28.829 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory /opt/tomcat/webapps/ROOT
19-Sep-2018 09:53:29.524 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory /opt/tomcat/webapps/ROOT has finished in 694 ms
19-Sep-2018 09:53:29.524 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory /opt/tomcat/webapps/docs
19-Sep-2018 09:53:29.552 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory /opt/tomcat/webapps/docs has finished in 28 ms
19-Sep-2018 09:53:29.552 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory /opt/tomcat/webapps/examples
19-Sep-2018 09:53:29.987 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory /opt/tomcat/webapps/examples has finished in 434 ms
19-Sep-2018 09:53:29.987 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory /opt/tomcat/webapps/host-manager
19-Sep-2018 09:53:30.033 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory /opt/tomcat/webapps/host-manager has finished in 46 ms
19-Sep-2018 09:53:30.034 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory /opt/tomcat/webapps/manager
19-Sep-2018 09:53:30.064 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory /opt/tomcat/webapps/manager has finished in 29 ms
19-Sep-2018 09:53:30.082 INFO [main] org.apache.coyote.AbstractProtocol.start Starting ProtocolHandler ["http-nio-8080"]
19-Sep-2018 09:53:30.099 INFO [main] org.apache.coyote.AbstractProtocol.start Starting ProtocolHandler ["ajp-nio-8009"]
19-Sep-2018 09:53:30.106 INFO [main] org.apache.catalina.startup.Catalina.start Server startup in 1360 ms
2018-09-19 16:52:10
 [] [] [INFO]-[Thread: DefaultQuartzScheduler_Worker-7] 开始检查系统

    1.2.2 catalina.YYYY-MM-DD.log

　catalina.{yyyy-MM-dd}.log是tomcat自己运行的一些日志，这些日志还会输出到catalina.out，但是应用向console输出的日志不会输出到catalina.{yyyy-MM-dd}.log,它是tomcat的启动和暂停时的运行日志，注意，它和catalina.out是里面的内容是不一样的。

 

　1.2.3 localhost.YYYY-MM-DD.log

　localhost.{yyyy-MM-dd}.log主要是应用初始化(listener, filter, servlet)未处理的异常最后被tomcat捕获而输出的日志,它也是包含tomcat的启动和暂停时的运行日志,但它没有catalina.2018-09-19.log 日志全。它只是记录了部分日志。

 

　1.2.4 localhost_access_log.YYYY-MM-DD.txt

　localhost_access_log.2018-09-19.txt：这个是访问tomcat的日志，请求时间和资源，状态码都有记录。

192.168.1.220 - - [19/Sep/2018:03:57:42 -0400] "GET / HTTP/1.1" 200 11286
192.168.1.220 - - [19/Sep/2018:03:57:42 -0400] "GET /tomcat.css HTTP/1.1" 200 5581
192.168.1.220 - - [19/Sep/2018:03:57:42 -0400] "GET /tomcat.png HTTP/1.1" 200 5103
192.168.1.220 - - [19/Sep/2018:03:57:42 -0400] "GET /bg-button.png HTTP/1.1" 200 713
192.168.1.220 - - [19/Sep/2018:03:57:42 -0400] "GET /bg-nav.png HTTP/1.1" 200 1401
192.168.1.220 - - [19/Sep/2018:03:57:42 -0400] "GET /asf-logo-wide.svg HTTP/1.1" 200 27235
192.168.1.220 - - [19/Sep/2018:03:57:42 -0400] "GET /bg-middle.png HTTP/1.1" 200 1918
192.168.1.220 - - [19/Sep/2018:03:57:42 -0400] "GET /bg-upper.png HTTP/1.1" 200 3103
192.168.1.220 - - [19/Sep/2018:03:58:14 -0400] "GET / HTTP/1.1" 200 11286
192.168.1.220 - - [19/Sep/2018:03:58:14 -0400] "GET /favicon.ico HTTP/1.1" 200 21630
192.168.1.220 - - [19/Sep/2018:03:58:16 -0400] "GET / HTTP/1.1" 200 11286
192.168.1.220 - - [19/Sep/2018:03:58:16 -0400] "GET /favicon.ico HTTP/1.1" 200 21630
192.168.1.220 - - [19/Sep/2018:03:58:21 -0400] "GET / HTTP/1.1" 200 11286
192.168.1.220 - - [19/Sep/2018:03:58:21 -0400] "GET /favicon.ico HTTP/1.1" 200 21630
192.168.1.220 - - [19/Sep/2018:03:58:28 -0400] "GET /docs/setup.html HTTP/1.1" 200 14470
192.168.1.220 - - [19/Sep/2018:03:58:28 -0400] "GET /docs/images/docs-stylesheet.css HTTP/1.1" 200 5780
192.168.1.220 - - [19/Sep/2018:03:58:28 -0400] "GET /docs/images/tomcat.png HTTP/1.1" 200 5103
192.168.1.220 - - [19/Sep/2018:03:58:28 -0400] "GET /docs/images/asf-logo.svg HTTP/1.1" 200 20486
192.168.1.220 - - [19/Sep/2018:03:58:28 -0400] "GET /docs/images/fonts/fonts.css HTTP/1.1" 200 1943
192.168.1.220 - - [19/Sep/2018:03:58:29 -0400] "GET /docs/images/fonts/OpenSans400.woff HTTP/1.1" 200 21956
192.168.1.220 - - [19/Sep/2018:03:58:29 -0400] "GET /docs/images/fonts/OpenSans700.woff HTTP/1.1" 200 22748
192.168.1.220 - - [19/Sep/2018:03:58:29 -0400] "GET /docs/images/fonts/OpenSans600.woff HTTP/1.1" 200 22604

　1.2.5 host-manager.YYYY-MM-DD.log

    host-manager.2018-09-19.log：这个估计是放tomcat的自带的manager项目的日志信息的，未看到有什么重要的日志信息。

　 1.2.6 manager.YYYY-MM-DD.log

　  manager.2018-09-19.log  ：　这个是tomcat manager项目专有的日志文件.

1.3 tomcat  日志文件切割

　　tomcat  的  catalina.out  文件tomcat 是不会进行日志切割的，当这个文件大于2G  时，会影响tomcat的运行。那么我们需要对这个文件进行日志切割，切割的方法有很多种：

　　第一种：

　　通过系统自带的切割工具：logrotate来进行切割。

　　第二种:

　　使用logj4进行切割日志。

　　第三种：

　　使用用cronolog分割tomcat的catalina.out文件 

　　以上三种方法见：https://www.cnblogs.com/happy-king/p/9193401.html