第 10 章 使用 JBoss EAP 进行日志记录

流程

1. 在文件查看器中打开 server.log 文件。
2. 导航到文件末尾。
3. 向后搜索 WFLYSRV0049 消息标识符，这表示最新启动序列的开头。

4. 在该点中搜索 ERROR 实例的日志。每个实例都将包含错误的描述，并列出涉及的模块。

   以下是 server.log 日志文件中的错误描述示例：

   2016-03-16 14:32:01,627 ERROR [org.jboss.msc.service.fail] (MSC service thread 1-7) MSC000001: Failed to start service jboss.undertow.listener.default: org.jboss.msc.service.StartException in service jboss.undertow.listener.default: Could not start http listener
           at org.wildfly.extension.undertow.ListenerService.start(ListenerService.java:142)
           at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1948)
           at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1881)
           at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
           at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
           at java.lang.Thread.run(Thread.java:745)
   Caused by: java.net.BindException: Address already in use
           ...

   Copy to Clipboard Toggle word wrap

流程

1. 启动管理 CLI。

   $ <EAP_HOME>/bin/jboss-cli.sh

   Copy to Clipboard Toggle word wrap

2. 运行以下管理 CLI 命令：

   /core-service=management:read-boot-errors

   Copy to Clipboard Toggle word wrap

3. 查看输出以查看引导过程中出现的任何错误列表。

   输出示例

   {
       "outcome" => "success",
       "result" => [
           {
               "failed-operation" => {
                   "operation" => "add",
                   "address" => [
                       ("subsystem" => "undertow"),
                       ("server" => "default-server"),
                       ("http-listener" => "default")
                   ]
               },
               "failure-description" => "{\"WFLYCTL0080: Failed services\" => {\"jboss.undertow.listener.default\" => \"org.jboss.msc.service.StartException in service jboss.undertow.listener.default: Could not start http listener
       Caused by: java.net.BindException: Address already in use\"}}",
               "failed-services" => {"jboss.undertow.listener.default" => "org.jboss.msc.service.StartException in service jboss.undertow.listener.default: Could not start http listener
       Caused by: java.net.BindException: Address already in use"}
           }
           ...
       ]
   }

   Copy to Clipboard Toggle word wrap