Install the Server

Installing the Database

Several database engines are supported. Be sure to follow the requirements listed for your database, they are real requirements not recommendations.

Create an empty schema and a sonarqube user. Grant this sonarqube user permissions to create, update, and delete objects for this schema.

Microsoft SQL Server

Collation MUST be case-sensitive (CS) and accent-sensitive (AS).

READ_COMMITED_SNAPSHOT MUST be set on the SonarQube database.

MS SQL database's shared lock strategy may impact SonarQube runtime. Making sure that is_read_committed_snapshot_on is set to true to prevent SonarQube from facing potential deadlocks under heavy loads.

Example of query to check is_read_committed_snapshot_on:

SELECT is_read_committed_snapshot_on FROM sys.databases WHERE name='YourSonarQubeDatabase';

Example of query to update is_read_committed_snapshot_on:


If you want to use integrated security, you have to download the Microsoft SQL JDBC Driver 6.2 package from and copy sqljdbc_auth.dll to any folder in your path. You should match the 32-bit or 64-bit version of the dll to the architecture of your server machine. If you are running the SonarQube as a windows service and want to use Integrated security, please make sure the Windows account under which the service is running has permission to connect your SQL Server. The account should have db_owner database role membership. Otherwise, if you are running the SonarQube server from a command prompt and want to use Integrated security, the user under which the command prompt is running should have db_owner database role membership. Also ensure that sonar.jdbc.username or sonar.jdbc.password properties are commented out, otherwise SonarQube will use SQL Authentication.


If you want to use SQL Authentication, use the following connection string. Also ensure that sonar.jdbc.username and sonar.jdbc.password are set appropriately.



If there are two SonarQube schemas on the same Oracle instance, especially if they are for two different versions, SonarQube gets confused and picks the first it finds. To avoid this issue:

  • Either privileges associated to the SonarQube Oracle user should be decreased
  • Or a trigger should be defined on the Oracle side to automatically alter the SonarQube Oracle user session when establishing a new connection:

Oracle JDBC driver versions and have major bugs, and are not recommended for use with the SonarQube (see more details).


If you want to use a custom schema and not the default "public" one, the PostgreSQL search_path property must be set:

ALTER USER mySonarUser SET search_path to mySonarQubeSchema

MySQL (not recommended)

MySQL is not supported for Data Center Edition.

There are two well-known engines that can be used in MySQL: MyISAM and InnoDB. MyISAM is the oldest of the two engines and is being progressively replaced by InnoDB. InnoDB is clearly faster and scales better with SonarQube as the number of projects under quality control increases. If you were an early adopter of SonarQube, you probably have a series of tables that are still using MyISAM. To improve performance, you should change the engine for all tables to InnoDB.

Once all SonarQube tables are using the InnoDB engine, the first thing to do is allocate a maximum amount of RAM to your MySQL instance with the innodb_buffer_pool_size parameter and give at least 15Mb to the query_cache_size parameter. Read this article about InnoDB Performance Optimization Basics for more information.

Installing the Web Server

First, check the requirements.

Then download and unzip the distribution (do not unzip into a directory starting with a digit).

$SONARQUBE-HOME (below) refers to the path to the directory where the SonarQube distribution has been unzipped.

Setting the Access to the Database

Edit $SONARQUBE-HOME/conf/ to configure the database settings. Templates are available for every supported database. Just uncomment and configure the template you need and comment out the lines dedicated to H2:

Example for PostgreSQL

Adding the JDBC Driver

Drivers for the supported databases (except Oracle) are already provided. Do not replace the provided drivers; they are the only ones supported.

For Oracle, copy the JDBC driver into $SONARQUBE-HOME/extensions/jdbc-driver/oracle.

Configuring the Elasticsearch storage path

By default, Elasticsearch data is stored in $SONARQUBE-HOME/data, but this is not recommended for production instances. Instead, you should store this data elsewhere, ideally in a dedicated volume with fast I/O. Beyond maintaining acceptable performance, doing so will also ease the upgrade of SonarQube.

Edit $SONARQUBE-HOME/conf/ to configure the following settings:

The user used to launch SonarQube must have read and write access to those directories.

Starting the Web Server

The default port is "9000" and the context path is "/". These values can be changed in $SONARQUBE-HOME/conf/

Execute the following script to start the server:

  • On Linux/Mac OS: bin// start
  • On Windows: bin/windows-x86-XX/StartSonar.bat

You can now browse SonarQube at http://localhost:9000 (the default System administrator credentials are admin/admin).

Tuning the Web Server

By default, SonarQube is configured to run on any computer with a simple Java JRE.

For better performance, the first thing to do when installing a production instance is to use a Java JDK and activate the server mode by uncommenting/setting the following line in $SONARQUBE-HOME/conf/


To change the Java JVM used by SonarQube, simply edit $SONARQUBE-HOME/conf/wrapper.conf and update the following line:

Advanced Installation Features

Next Steps

Once your server is installed and running, you may also want to Install Plugins. Then you're ready to begin Analyzing Source Code.


Grant more memory to the web server / compute engine / elastic search

To grant more memory to a server-side process, uncomment and edit the relevant javaOpts property in $SONARQUBE_HOME/conf/, specifically:

  • sonar.web.javaOpts (minimum values: -server -Xmx768m)
  • sonar.ce.javaOpts

Cannot connect to MySQL database

By default, remote access to MySQL database server is disabled for security reasons. If you want to remotely access the database server, you need to follow this quick guide.

Failed to start on Windows Vista

SonarQube seems unable to start when installed under the Program Files directory on Windows Vista. It should therefore not be installed there.

Failed to start SonarQube with Oracle due to bad USERS table structure

When other USERS tables exist in the Oracle DB, if the sonarqube user has read access on this other USERS table, the SonarQube web server can't start and an exception like the following one is thrown:

ActiveRecord::ActiveRecordError: ORA-00904: "TOTO": invalid identifier
: INSERT INTO users (login, name, email, crypted_password, salt, 
created_at, updated_at, remember_token, remember_token_expires_at, toto, id)
VALUES('admin', 'Administrator', '', 'bba4c8a0f808f9798cf8b1c153a4bb4f9178cf59', '2519754f77ea67e5d7211cd1414698f465aacebb',
TIMESTAMP'2011-06-24 22:09:14', TIMESTAMP'2011-06-24 22:09:14', null, null, null, ?)
ActiveRecord::ActiveRecordError: ORA-00904: "TOTO": invalid identifier
: INSERT INTO users (login, name, email, crypted_password, salt, 
created_at, updated_at, remember_token, remember_token_expires_at, toto, id)
VALUES('admin', 'Administrator', '', 'bba4c8a0f808f9798cf8b1c153a4bb4f9178cf59', 
'2519754f77ea67e5d7211cd1414698f465aacebb', TIMESTAMP'2011-06-24 22:09:14', TIMESTAMP'2011-06-24 22:09:14', null, null, null, ?)

To fix this issue, the rights of the sonarqube Oracle user must be decreased to remove read access on the other USERS table(s).

Failed to connect to the Marketplace via proxy

Double check that settings for proxy are correctly set in $SONARQUBE_HOME/conf/ Note that if your proxy username contains "" (backslash), then it should be escaped - for example username "domain\user" in file should look like:


For some proxies, the exception " Server redirected too many times" might mean an incorrect username or password has been configured.