У меня очень странное поведение в Tomcat 7 на Ubuntu 14.04.
Я создал новый VPS, установил default-jdk и другие простые вещи. Скачал и распаковал Tomcat 7. Проверил, работает ли он на [myIP]:8080, и увидел индексную страницу Tomcat.
Как только я перезагрузил VPS, я снова запустил Tomcat, и ... нет ответа на [myIP]:8080. Даже не ошибка. Когда я проверил журналы, я увидел, что Tomcat просто зависает в состоянии развертывания на первом веб-приложении.
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
До строки 74 это обычный запуск сервера. Были развернуты все стандартные веб-приложения (строки 48-68), но после этого просто зависает. Итак, я остановил сервер и перезагрузил свою систему. Снова запустил кота, и начинается чудо. Следующий сеанс находится в строках 89-136, и вы можете видеть, что там нет записи для Server startup in xxxx ms.
Он просто зависает при развертывании, и эта ситуация повторяется все время. Что может быть причиной этого? Я часами боролся с этой проблемой, схожу с ума и никуда не денусь.
Возможная проблема - Tomcat ждет накопления энтропии. Сделайте дамп нескольких потоков с jstack чтобы увидеть, кто чего ждет.
Tomcat 7+ в значительной степени полагается на SecureRandom class, чтобы предоставить случайные значения для идентификаторов сеансов и другие вещи. В зависимости от вашей JRE это может вызвать задержки во время запуска, если источник энтропии, который используется для инициализации SecureRandom не хватает энтропии.
Если проблема связана с энтропией, есть способ настроить JRE для использования неблокирующего источника энтропии, установив следующее системное свойство:
-Djava.security.egd=file:/dev/./urandom
См. Это связанное обсуждение для более подробной информации..
Может быть полезно для кого-то:
Убедитесь, что в вашем pom.xml НЕТ таких зависимостей:
<dependency>
<groupId>org.apache.tomcat.maven</groupId>
<artifactId>tomcat7-maven-plugin</artifactId>
<version>2.2</version>
</dependency>
<dependency>
<groupId>org.apache.tomcat</groupId>
<artifactId>tomcat-catalina</artifactId>
<version>8.0.23</version>
</dependency>
Возможная причина проблемы: ошибка ввода в пути к файлу хранилища ключей:
keystoreFile="conf/cert/certificate.ks"