【運維-tomcat監控】

背景

Tomcat作為常用的web容器，經常需要對tomcat 的狀态進行監控，為了安全起見，自帶的管理頁面通常在生成環境裡是要被删除掉的，于是用腳本方式定時擷取Tomcat的狀态資訊。

狀态資訊包括：程序号、版本、應用數，日志大小、JVM等資訊。

以下是Tomcat的監控配置步驟

1. Tomcat8配置tomcat-users.xml配置

<role rolename="manager-script"/>
<role rolename="manager-jmx"/>
<role rolename="manager-status"/>
<user username="admin" password="admin" roles="manager-script,manager-jmx,manager-status"/>
           

但是tomcat8.5 更改之後，仍然通路拒絕。

還需步驟如下：

vi /usr/local/tomcat/apache-tomcat/webapps/manager/META-INF/context.xml

2. Tomcat7配置管理

<user username="admin" password="1234" roles="admin,manager,manager-gui,manager-script,manager-jmx"/>

           

3. 腳本

tomcat_monitor

腳本調用方式:

./tomcat_monitor -u admin -p admin -h 127.0.0.1 -P 8080

腳本傳回資料:

{
    "static_tomcat_version":8,
    "tomcat_server_status":1,
    "application0":{
        "status":"running",
        "path":"/app1",
        "active_sessions":0,
        "name":"app1"
    },
    "application1":{
        "status":"running",
        "path":"/app2",
        "active_sessions":0,
        "name":"app2"
    },
    "application2":{
        "status":"running",
        "path":"/app3",
        "active_sessions":0,
        "name":"app3"
    },
    "application3":{
        "status":"running",
        "path":"/app4",
        "active_sessions":0,
        "name":"app4"
    },
    "application4":{
        "status":"running",
        "path":"/app5",
        "active_sessions":0,
        "name":"app5"
    },
    "application5":{
        "status":"running",
        "path":"/app6",
        "active_sessions":0,
        "name":"app6"
    },
    "tomcat_application_count":6,
    "free_memory":2474.21,
    "total_memory":5939.25,
    "max_memory":5939.25,
    "available_memory":2474.21,
    "used_memory":3465.04,
    "percent_used_memory":58.3413337765,
    "usage_CMS_Old_Gen":1906743848,
    "usage_Par_Eden_Space":1549483576,
    "usage_Par_Survivor_Space":177130064,
    "usage_Code_Cache":95788544,
    "usage_Compressed_Class_Space":19645032,
    "usage_Metaspace":165271168,
    "host":"127.0.0.1",
    "port":8080,
    "pid":65678,
    "baseDir":"/usr/local/tomcat",
    "logFileNum":331,
    "logDirSize":594768,
    "logFilesystemTotal":868580864,
    "logFilesystemAvail":793805384,
    "logFilesystemUsed":74775480,
    "logFilesystemUse":9
}

           

4. 監控頁面