操作系统：centos 7 (x86)
一、问题描述：使用root启动时，一直反馈 SonarQube is not running
问题原因：不能够使用root用户进行启动
解决方案：①创建一个其他用户（如sonar) adduser sonar 设置密码 passwd sonar
②更改sonarqube的安装目录的用户组 chown -R sonar:sonar sonarqube-XXX
③切换用户启动 su sonar xxxx/sonar.sh start
二、启动时可能会遇到一个现象， 服务一会挂掉或者启动不起来，使用sonar.sh console 命令查看后，输出日志如下：
wrapper | --> Wrapper Started as Console wrapper | Launching a JVM... jvm 1 | Wrapper (Version 3.2.3) http://wrapper.tanukisoftware.org jvm 1 | Copyright 1999-2006 Tanuki Software, Inc. All Rights Reserved. jvm 1 | jvm 1 | 2020.09.14 23:51:49 INFO app[][o.s.a.AppFileSystem] Cleaning or creating temp directory /opt/sonarqu jvm 1 | 2020.09.14 23:51:49 INFO app[][o.s.a.es.EsSettings] Elasticsearch listening on /127.0.0.1:9001 jvm 1 | 2020.09.14 23:51:49 ERROR app[][o.s.a.p.ManagedProcessHandler] Fail to launch process [es] jvm 1 | java.lang.IllegalStateException: Cannot write Elasticsearch yml settings file jvm 1 | at org.sonar.application.es.EsYmlSettings.writeToYmlSettingsFile(EsYmlSettings.java:53) jvm 1 | at org.sonar.application.ProcessLauncherImpl.writeConfFiles(ProcessLauncherImpl.java:151) jvm 1 | at org.sonar.application.ProcessLauncherImpl.launch(ProcessLauncherImpl.java:84) jvm 1 | at org.sonar.application.SchedulerImpl.lambda$tryToStartProcess$2(SchedulerImpl.java:196) jvm 1 | at org.sonar.application.process.ManagedProcessHandler.start(ManagedProcessHandler.java:73) jvm 1 | at org.sonar.application.SchedulerImpl.tryToStartProcess(SchedulerImpl.java:194) jvm 1 | at org.sonar.application.SchedulerImpl.tryToStartEs(SchedulerImpl.java:146) jvm 1 | at org.sonar.application.SchedulerImpl.tryToStartAll(SchedulerImpl.java:138) jvm 1 | at org.sonar.application.SchedulerImpl.schedule(SchedulerImpl.java:112) jvm 1 | at org.sonar.application.App.start(App.java:69) jvm 1 | at org.sonar.application.App.main(App.java:98) jvm 1 | at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) jvm 1 | at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) jvm 1 | at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.j jvm 1 | at java.base/java.lang.reflect.Method.invoke(Method.java:566) jvm 1 | at org.tanukisoftware.wrapper.WrapperSimpleApp.run(WrapperSimpleApp.java:240) jvm 1 | at java.base/java.lang.Thread.run(Thread.java:834) jvm 1 | Caused by: java.nio.file.AccessDeniedException: /opt/sonarqube-7.6/temp/conf/es/elasticsearch.yml jvm 1 | at java.base/sun.nio.fs.UnixException.translateToIOException(UnixException.java:90) jvm 1 | at java.base/sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:111)
问题原因： 用root启动过会创建temp目录，该目录为root用户所有，使用自己创建的sonar用户启动时就会报错
解决方案：使用root用户修改该文件夹的用户组（temp)，让它属于sonarqube的启动用户（自己创建的那个），再次启动就ok了 chown -
R sonar:sonar /opt/sonarqube-7.6/temp
原文：https://www.cnblogs.com/afei654138148/p/14856165.html