Tomcat

Tomcat7 掛起部署應用程序

  • January 11, 2018

我在 Ubuntu 14.04 上的 Tomcat 7 中有一些非常奇怪的行為。

我創建了一個新的 VPS，安裝了 default-jdk 和其他簡單的東西。下載並解壓 Tomcat 7。檢查它是否在 上執行[myIP]:8080，並查看 Tomcat 的索引頁面。

重新啟動 VPS 後，我再次啟動了 Tomcat，並且… 沒有任何響應[myIP]:8080。甚至沒有錯誤。當我檢查日誌時，我看到 Tomcat 只是在第一個 webapp 上處於部署狀態。

我的日誌：

Dec 31, 2014 9:06:04 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: Server version:        Apache Tomcat/7.0.57
Dec 31, 2014 9:06:04 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: Server built:          Nov 3 2014 08:39:16 UTC
Dec 31, 2014 9:06:04 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: Server number:         7.0.57.0
Dec 31, 2014 9:06:04 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: OS Name:               Linux
Dec 31, 2014 9:06:04 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: OS Version:            3.13.0-37-generic
Dec 31, 2014 9:06:04 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: Architecture:          amd64
Dec 31, 2014 9:06:04 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: JAVA_HOME:             /usr/lib/jvm/java-7-openjdk-amd64/jre
Dec 31, 2014 9:06:04 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: JVM Version:           1.7.0_65-b32
Dec 31, 2014 9:06:04 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: JVM Vendor:            Oracle Corporation
Dec 31, 2014 9:06:04 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: CATALINA_BASE:         /opt/tomcat
Dec 31, 2014 9:06:04 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: CATALINA_HOME:         /opt/tomcat
Dec 31, 2014 9:06:04 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: -Djava.util.logging.config.file=/opt/tomcat/conf/logging.properties
Dec 31, 2014 9:06:04 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager
Dec 31, 2014 9:06:04 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: -Djava.endorsed.dirs=/opt/tomcat/endorsed
Dec 31, 2014 9:06:04 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: -Dcatalina.base=/opt/tomcat
Dec 31, 2014 9:06:04 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: -Dcatalina.home=/opt/tomcat
Dec 31, 2014 9:06:04 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: -Djava.io.tmpdir=/opt/tomcat/temp
Dec 31, 2014 9:06:04 AM org.apache.catalina.core.AprLifecycleListener lifecycleEvent
INFO: 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/lib/x86_64-linux-gnu/jni:/lib/x86_64-linux-gnu:/usr/lib/x86_64-linux-gnu:/usr/lib/jni:/lib:/usr/lib
Dec 31, 2014 9:06:04 AM org.apache.coyote.AbstractProtocol init
INFO: Initializing ProtocolHandler ["http-bio-8080"]
Dec 31, 2014 9:06:04 AM org.apache.coyote.AbstractProtocol init
INFO: Initializing ProtocolHandler ["ajp-bio-8009"]
Dec 31, 2014 9:06:04 AM org.apache.catalina.startup.Catalina load
INFO: Initialization processed in 2327 ms
Dec 31, 2014 9:06:04 AM org.apache.catalina.core.StandardService startInternal
INFO: Starting service Catalina
Dec 31, 2014 9:06:04 AM org.apache.catalina.core.StandardEngine startInternal
INFO: Starting Servlet Engine: Apache Tomcat/7.0.57
Dec 31, 2014 9:06:04 AM org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deploying web application directory /opt/tomcat/webapps/host-manager
Dec 31, 2014 9:11:09 AM org.apache.catalina.util.SessionIdGenerator createSecureRandom
INFO: Creation of SecureRandom instance for session ID generation using [SHA1PRNG] took [303,104] milliseconds.
Dec 31, 2014 9:11:09 AM org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deployment of web application directory /opt/tomcat/webapps/host-manager has finished in 304,682 ms
Dec 31, 2014 9:11:09 AM org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deploying web application directory /opt/tomcat/webapps/manager
Dec 31, 2014 9:11:09 AM org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deployment of web application directory /opt/tomcat/webapps/manager has finished in 271 ms
Dec 31, 2014 9:11:09 AM org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deploying web application directory /opt/tomcat/webapps/docs
Dec 31, 2014 9:11:09 AM org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deployment of web application directory /opt/tomcat/webapps/docs has finished in 205 ms
Dec 31, 2014 9:11:09 AM org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deploying web application directory /opt/tomcat/webapps/examples
Dec 31, 2014 9:11:11 AM org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deployment of web application directory /opt/tomcat/webapps/examples has finished in 1,422 ms
Dec 31, 2014 9:11:11 AM org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deploying web application directory /opt/tomcat/webapps/ROOT
Dec 31, 2014 9:11:11 AM org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deployment of web application directory /opt/tomcat/webapps/ROOT has finished in 177 ms
Dec 31, 2014 9:11:11 AM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["http-bio-8080"]
Dec 31, 2014 9:11:11 AM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["ajp-bio-8009"]
Dec 31, 2014 9:11:11 AM org.apache.catalina.startup.Catalina start
INFO: Server startup in 306957 ms
Dec 31, 2014 9:17:35 AM org.apache.coyote.AbstractProtocol pause
INFO: Pausing ProtocolHandler ["http-bio-8080"]
Dec 31, 2014 9:17:35 AM org.apache.coyote.AbstractProtocol pause
INFO: Pausing ProtocolHandler ["ajp-bio-8009"]
Dec 31, 2014 9:17:35 AM org.apache.catalina.core.StandardService stopInternal
INFO: Stopping service Catalina
Dec 31, 2014 9:17:36 AM org.apache.coyote.AbstractProtocol stop
INFO: Stopping ProtocolHandler ["http-bio-8080"]
Dec 31, 2014 9:17:36 AM org.apache.coyote.AbstractProtocol stop
INFO: Stopping ProtocolHandler ["ajp-bio-8009"]
Dec 31, 2014 9:17:36 AM org.apache.coyote.AbstractProtocol destroy
INFO: Destroying ProtocolHandler ["http-bio-8080"]
Dec 31, 2014 9:17:36 AM org.apache.coyote.AbstractProtocol destroy
INFO: Destroying ProtocolHandler ["ajp-bio-8009"]
Dec 31, 2014 9:20:01 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: Server version:        Apache Tomcat/7.0.57
Dec 31, 2014 9:20:01 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: Server built:          Nov 3 2014 08:39:16 UTC
Dec 31, 2014 9:20:01 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: Server number:         7.0.57.0
Dec 31, 2014 9:20:01 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: OS Name:               Linux
Dec 31, 2014 9:20:01 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: OS Version:            3.13.0-37-generic
Dec 31, 2014 9:20:01 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: Architecture:          amd64
Dec 31, 2014 9:20:01 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: JAVA_HOME:             /usr/lib/jvm/java-7-openjdk-amd64/jre
Dec 31, 2014 9:20:01 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: JVM Version:           1.7.0_65-b32
Dec 31, 2014 9:20:01 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: JVM Vendor:            Oracle Corporation
Dec 31, 2014 9:20:01 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: CATALINA_BASE:         /opt/tomcat
Dec 31, 2014 9:20:01 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: CATALINA_HOME:         /opt/tomcat
Dec 31, 2014 9:20:01 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: -Djava.util.logging.config.file=/opt/tomcat/conf/logging.properties
Dec 31, 2014 9:20:01 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager
Dec 31, 2014 9:20:01 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: -Djava.endorsed.dirs=/opt/tomcat/endorsed
Dec 31, 2014 9:20:01 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: -Dcatalina.base=/opt/tomcat
Dec 31, 2014 9:20:01 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: -Dcatalina.home=/opt/tomcat
Dec 31, 2014 9:20:01 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: -Djava.io.tmpdir=/opt/tomcat/temp
Dec 31, 2014 9:20:01 AM org.apache.catalina.core.AprLifecycleListener lifecycleEvent
INFO: 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/lib/x86_64-linux-gnu/jni:/lib/x86_64-linux-gnu:/usr/lib/x86_64-linux-gnu:/usr/lib/jni:/lib:/usr/lib
Dec 31, 2014 9:20:01 AM org.apache.coyote.AbstractProtocol init
INFO: Initializing ProtocolHandler ["http-bio-8080"]
Dec 31, 2014 9:20:01 AM org.apache.coyote.AbstractProtocol init
INFO: Initializing ProtocolHandler ["ajp-bio-8009"]
Dec 31, 2014 9:20:01 AM org.apache.catalina.startup.Catalina load
INFO: Initialization processed in 1536 ms
Dec 31, 2014 9:20:02 AM org.apache.catalina.core.StandardService startInternal
INFO: Starting service Catalina
Dec 31, 2014 9:20:02 AM org.apache.catalina.core.StandardEngine startInternal
INFO: Starting Servlet Engine: Apache Tomcat/7.0.57
Dec 31, 2014 9:20:02 AM org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deploying web application directory /opt/tomcat/webapps/host-manager
Dec 31, 2014 9:33:38 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: Server version:        Apache Tomcat/7.0.57
Dec 31, 2014 9:33:38 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: Server built:          Nov 3 2014 08:39:16 UTC
Dec 31, 2014 9:33:38 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: Server number:         7.0.57.0
Dec 31, 2014 9:33:38 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: OS Name:               Linux
Dec 31, 2014 9:33:38 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: OS Version:            3.13.0-37-generic
Dec 31, 2014 9:33:38 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: Architecture:          amd64
Dec 31, 2014 9:33:38 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: JAVA_HOME:             /usr/lib/jvm/java-7-openjdk-amd64/jre
Dec 31, 2014 9:33:38 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: JVM Version:           1.7.0_65-b32
Dec 31, 2014 9:33:38 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: JVM Vendor:            Oracle Corporation
Dec 31, 2014 9:33:38 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: CATALINA_BASE:         /opt/tomcat
Dec 31, 2014 9:33:38 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: CATALINA_HOME:         /opt/tomcat
Dec 31, 2014 9:33:38 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: -Djava.util.logging.config.file=/opt/tomcat/conf/logging.properties
Dec 31, 2014 9:33:38 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager
Dec 31, 2014 9:33:38 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: -Djava.endorsed.dirs=/opt/tomcat/endorsed
Dec 31, 2014 9:33:38 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: -Dcatalina.base=/opt/tomcat
Dec 31, 2014 9:33:38 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: -Dcatalina.home=/opt/tomcat
Dec 31, 2014 9:33:38 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: -Djava.io.tmpdir=/opt/tomcat/temp
Dec 31, 2014 9:33:38 AM org.apache.catalina.core.AprLifecycleListener lifecycleEvent
INFO: 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/lib/x86_64-linux-gnu/jni:/lib/x86_64-linux-gnu:/usr/lib/x86_64-linux-gnu:/usr/lib/jni:/lib:/usr/lib
Dec 31, 2014 9:33:38 AM org.apache.coyote.AbstractProtocol init
INFO: Initializing ProtocolHandler ["http-bio-8080"]
Dec 31, 2014 9:33:38 AM org.apache.coyote.AbstractProtocol init
INFO: Initializing ProtocolHandler ["ajp-bio-8009"]
Dec 31, 2014 9:33:38 AM org.apache.catalina.startup.Catalina load
INFO: Initialization processed in 2495 ms
Dec 31, 2014 9:33:39 AM org.apache.catalina.core.StandardService startInternal
INFO: Starting service Catalina
Dec 31, 2014 9:33:39 AM org.apache.catalina.core.StandardEngine startInternal
INFO: Starting Servlet Engine: Apache Tomcat/7.0.57
Dec 31, 2014 9:33:39 AM org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deploying web application directory /opt/tomcat/webapps/host-manager

直到第 74 行，這是一個正常的伺服器啟動。部署了所有標準 webapp（第 48-68 行），但之後它就掛起。所以，我停止了伺服器並重新啟動了我的系統。再次啟動tomcat，奇蹟開始了。下一個會話在第 89-136 行，您可以看到沒有Server startup in xxxx ms.

它只是掛在部署中，這種情況一直在重複。這可能是什麼原因造成的？我花了好幾個小時來解決這個問題，我快瘋了，無處可去。

一個可能的問題是 Tomcat 等待熵增加。用幾個執行緒轉儲jstack看看誰在等待什麼。

Tomcat 7+ 嚴重依賴SecureRandom類來為其會話 ID 和其他內容提供隨機值。根據您的 JRE，如果用於初始化的熵源SecureRandom缺少熵，則可能會導致啟動期間出現延遲。

如果問題是熵，可以通過設置以下系統屬性將 JRE 配置為使用非阻塞熵源：

-Djava.security.egd=file:/dev/./urandom

有關更多詳細資訊，請參閱此相關討論。

引用自：https://serverfault.com/questions/655616

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