Tomcat manager jmxproxy

• manager に jmxproxy がある。
• jmx を利用して jvm や Catalina の状況を把握できる

環境整備

関連ファイル

• ${CATALINA_HOME}/server/webapps/manager : manager webアプリケーション
• ${CATALINA_HOME}/conf/Catalina/localhost/manager.xml : manager のコンテキスト.xml
• ${CATALINA_HOME}/conf/tomcat-users.xml : 情報取得時に指定するID/PW

セキュリティ

• manager.xml に設定を追加し、接続元のIP制限をかける
• ローカルIPまたはプライベートIPのみを許可

<Context ...>
  <Valve className="org.apache.catalina.valves.RemoteAddrValve" allow="127.0.0.1,192.168.*.*" />
</Context>

利用法

curl コマンドライン

• 全データ取得

curl -s -u {username}:{password} http://localhost:18080/manager/jmxproxy

• 指定

curl -s -u {username}:{password} http://localhost:18080/manager/jmxproxy/'?qry=java.lang:type=Threading'

有用な情報

• java-1.5
• tomcat-5.5

java.lang:type=GarbageCollector,name=Copy

• CollectionCount: 31828
• CollectionTime: 335777

java.lang:type=MemoryPool,name=Survivor Space

• ^Usage: max=12386304, used=1017720

Catalina:type=Manager,path=/webedi,host=localhost

• activeSessions: 131
• sessionCounter: 17887
• maxActive: 192

Catalina:j2eeType=Servlet,name=jsp,WebModule=//localhost/webedi,J2EEApplication=none,J2EEServer=none

• processingTime: 55475750
• requestCount: 142484
• errorCount: 1

java.lang:type=MemoryPool,name=Perm Gen [shared-ro]

• max=8388608, used=5764576

Catalina:type=GlobalRequestProcessor,name=jk-58009

• requestCount: 499749
• bytesSent: 3981849703
• processingTime: 142593924
• errorCount: 656

java.lang:type=MemoryPool,name=Eden Space

• max=99090432, used=10661368

java.lang:type=Runtime

• StartTime: 1200894995657

java.lang:type=MemoryPool,name=Tenured Gen

• max=1486749696, used=99358648

Catalina:type=ThreadPool,name=jk-58009

• currentThreadsBusy: 12
• currentThreadCount: 44
• maxThreads: 200

java.lang:type=MemoryPool,name=Perm Gen [shared-rw]

• max=12582912, used=6073504

java.lang:type=Threading

• DaemonThreadCount: 81
• ThreadCount: 83

java.lang:type=GarbageCollector,name=MarkSweepCompact

• CollectionCount: 1320
• CollectionTime: 1022168

java.lang:type=OperatingSystem

• TotalSwapSpaceSize: 2080366592
• FreeSwapSpaceSize: 2080153600
• OpenFileDescriptorCount: 108
• FreePhysicalMemorySize: 37007360
• CommittedVirtualMemorySize: 1996857344
• MaxFileDescriptorCount: 1024
• TotalPhysicalMemorySize: 2657320960

java.lang:type=Memory

• max=121634816, used=72765224