linux - Can't run Sonar Server caused by Elasticsearch cannot running as root

Question

I'm trying to install SonarQube : i ve followed those steps :

Setting up SOnarQube Tuto : here

To summarize it :

• Downloading Sonar and moving it to /opt/sonar

• adding those coonfig steps to /opt/sonar/conf/sonar.properties :

  sonar.jdbc.username=sonar sonar.jdbc.password=sonar

sonar.jdbc.url=jdbc:mysql://localhost:3306/sonar?useUnicode=true&characterEncoding=utf8&rewriteBatchedStatements=true&useConfigs=maxPerformance

and

sonar.web.host=127.0.0.1
sonar.web.context=/sonar
sonar.web.port=9000

• implementing sonar as a service:

sudo cp /opt/sonar/bin/linux-x86-64/sonar.sh /etc/init.d/sonar

sudo gedit /etc/init.d/sonar

Insert two new lines:

SONAR_HOME=/opt/sonar
PLATFORM=linux-x86-64
Modify the following lines:

WRAPPER_CMD="${SONAR_HOME}/bin/${PLATFORM}/wrapper"
WRAPPER_CONF="${SONAR_HOME}/conf/wrapper.conf"

...

PIDDIR="/var/run"
Register as a Linux service:

sudo update-rc.d -f sonar remove
sudo chmod 755 /etc/init.d/sonar
sudo update-rc.d sonar defaults

After those steps : i ve tried to run Sonar from : localhost:9000/sonar and after executing : sudo /etc/init.d/sonar start ` Strangely , it didsn't run .

SO when i run `sudo /etc/init.d/sonar status , i discover that it goes steps after few seconds , and it throws some error in it log file , like the following :

es.log:

2017.12.09 18:05:14 ERROR es[][o.e.b.Bootstrap] Exception
java.lang.RuntimeException: can not run elasticsearch as root
    at org.elasticsearch.bootstrap.Bootstrap.initializeNatives(Bootstrap.java:106) ~[elasticsearch-5.6.3.jar:5.6.3]
    at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:195) ~[elasticsearch-5.6.3.jar:5.6.3]
    at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:342) [elasticsearch-5.6.3.jar:5.6.3]
    at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:132) [elasticsearch-5.6.3.jar:5.6.3]
    at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:123) [elasticsearch-5.6.3.jar:5.6.3]
    at org.elasticsearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:70) [elasticsearch-5.6.3.jar:5.6.3]
    at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:134) [elasticsearch-5.6.3.jar:5.6.3]
    at org.elasticsearch.cli.Command.main(Command.java:90) [elasticsearch-5.6.3.jar:5.6.3]
    at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:91) [elasticsearch-5.6.3.jar:5.6.3]
    at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:84) [elasticsearch-5.6.3.jar:5.6.3]
2017.12.09 18:05:14 WARN  es[][o.e.b.ElasticsearchUncaughtExceptionHandler] uncaught exception in thread [main]
org.elasticsearch.bootstrap.StartupException: java.lang.RuntimeException: can not run elasticsearch as root
    at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:136) ~[elasticsearch-5.6.3.jar:5.6.3]
    at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:123) ~[elasticsearch-5.6.3.jar:5.6.3]
    at org.elasticsearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:70) ~[elasticsearch-5.6.3.jar:5.6.3]
    at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:134) ~[elasticsearch-5.6.3.jar:5.6.3]
    at org.elasticsearch.cli.Command.main(Command.java:90) ~[elasticsearch-5.6.3.jar:5.6.3]
    at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:91) ~[elasticsearch-5.6.3.jar:5.6.3]
    at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:84) ~[elasticsearch-5.6.3.jar:5.6.3]
Caused by: java.lang.RuntimeException: can not run elasticsearch as root
    at org.elasticsearch.bootstrap.Bootstrap.initializeNatives(Bootstrap.java:106) ~[elasticsearch-5.6.3.jar:5.6.3]
    at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:195) ~[elasticsearch-5.6.3.jar:5.6.3]
    at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:342) ~[elasticsearch-5.6.3.jar:5.6.3]
    at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:132) ~[elasticsearch-5.6.3.jar:5.6.3]
    ... 6 more

Any suggestions ??

Answer 1

SonarSource has upgraded the Elasticsearch tool used as a part of the latest SonarQube LTS version. As a result SonarQube cannot be run as a root. See this blog and the SonarQube 6.6 upgrade notes and this SO question.