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TeamCity 9.x Documentation

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TeamCity stores build history, users, build results and some run time data in an SQL database. See also description of what is stored where on Manual Backup and Restore page.

This page covers external database setup for the first use with TeamCity. If you evaluated TeamCity with the internal database and want to preserve the data while switching to an external database, please refer to Migrating to an External Database.

By default, TeamCity runs using an internal database based on the HSQLDB database engine. The internal database suits evaluation purposes only; it works out of the box and requires no additional setup. However, we strongly recommend using an external database as a back-end TeamCity database in a production environment.
An external database is usually more reliable and provides better performance.

The internal database may crash and lose all your data (e.g. on out of disk space condition). Also, internal database can become extremely slow on large data sets (say, database storage files over 200Mb). Please also note that our support does not cover any performance or database data loss issues if you are using the internal database.

In short, do not EVER use internal HSQLDB database for production TeamCity instances.

The database to be used is configured on the TeamCity start: all you need to do is select the type of the database and specify database connection settings. You may also need to download the JDBC driver for your database. The database connection settings are stored in <TeamCity Data Directory>\config\database.properties file. The file is a Java properties file.

The information below provides instruction on manual configuration of the external database to be used by TeamCity.

This page covers:

Selecting External Database Engine

TeamCity supports MySQL, PostgreSQL, Oracle and MS SQL databases.
As a general rule you should use the database that better suits your environment and that you can maintain/configure better in your organization.

While we strive to make sure TeamCity functions equally well under all of the supported databases, issues can surface in some of them under high TeamCity-generated load.

General Steps

  1. If you already ran TeamCity but do not want to preserve any data, delete TeamCity Data Directory.

    If you delete TeamCity Data Directory, all the data you entered into TeamCity will be lost. To preserve your data, please refer to the migration guide.

  2. Run TeamCity with the default settings to create the <TeamCity Data Directory>.
  3. Shutdown the TeamCity server.
  4. Perform database-specific steps described below.
  5. Start the server.

    Please note that TeamCity actively modifies its own database schema. The user account used by TeamCity should have permissions to create new, modify and delete existing tables in its schema, in addition to usual read/write permissions on all tables.

Database Configuration Properties

The database connection settings are stored in <TeamCity Data Directory>\config\database.properties file.

TeamCity uses Apache DBCP for database connection pooling. Please refer to http://commons.apache.org/dbcp/configuration.html for detailed description of configuration properties. Example configurations for each of supported databases are provided in the sections below.


For all supported databases there are template files with database-specific properties located in the <TeamCity Data Directory>/config directory and have the following name format: database.<database_type>.properties.dist. To use a template, copy it to database.properties and then modify it to specify correct properties for your database connections.

Database Driver Installation

Due to licensing terms, TeamCity does not bundle driver jars for external databases. You will need to download the Java JDBC driver and put the appropriate .jar files (see driver-specific sections below) from it into the <TeamCity Data Directory>/lib/jdbc directory (create it if necessary).
Please note that the .jar files should be compiled for the Java version not greater than the one used to run TeamCity, otherwise you might see "Unsupported major.minor version" errors related to the database driver classes.


Supported versions

On MySQL server side

Recommended database server settings:

The user in MySQL that will be used by TeamCity must be granted all permissions on the TeamCity database.

For this you can execute the following SQL commands from MySQL console:

On TeamCity server side


  1. Download the MySQL JDBC driver from http://dev.mysql.com/downloads/connector/j/. If the MySQL server version is 5.5 or newer, the JDBC driver version should be 5.1.23 or newer.
  2. Place mysql-connector-java-*-bin.jar from the downloaded archive into the <TeamCity Data Directory>/lib/jdbc.
  3. In the <TeamCity Data Directory>/config folder rename database.mysql.properties.dist file to database.properties and specify the required settings in this file:


Supported versions

On PostgreSQL server side
  1. Create an empty database for TeamCity in PostgreSQL.
    • Make sure to set up the database to use UTF8.
    • Grant permissions to modify this database to a user which TeamCity will use to work with this database.
On TeamCity server side

  1. Check you JRE version to determine which JDBC driver is required. If you are using Java 1.6 to run TeamCity server, you need the JDBC4 version. For Java 1.7 (recommended) or 1.8, use the JDBC41 version.
  2. Download the required PostgreSQL JDBC driver and place it into the <TeamCity Data Directory>/lib/jdbc.
  3. In <TeamCity Data Directory>/config rename database.postgresql.properties.dist file to database.properties and specify the required settings in this file:

TeamCity doesn't specify which schema should be used for its tables. By default, PostgreSQL creates tables in the 'public' schema (the 'public' is the name of the schema). TeamCity can also work with other PostgreSQL schemas.
To switch to another schema, do the following:

  1. Create a schema named exactly as the user name: this can be done using the pgAdmin tool or with the following SQL:
    The username has to be specified in the 'database.properties' in TeamCity, and has to be in lower case.
    The schema has to be empty (it should not contain any tables).
  2. Start TeamCity.


Supported versions

On Oracle server side
  1. Create an Oracle user account/schema for TeamCity.

    TeamCity uses the primary character set (char, varchar, clob) for storing internal text data and the national character set (nchar, nvarchar, nclob) to store the user input and data from external systems, like VCS, NTLM, etc.

    • Make sure that the national character set of the database instance is UTF or Unicode.
    • Grant the CREATE SESSION, CREATE TABLE, permissions to a user whose account will be used by TeamCity to work with this database.
      TeamCity, on the first connect, creates all necessary tables and indices in the user's schema. (Note: TeamCity never attempts to access other schemas even if they are accessible)

      Make sure TeamCity user has quota for accessing table space.

On TeamCity server side
  1. Get the Oracle JDBC driver.
    Supported driver versions are and higher.
    Place the following files:
    • ojdbc6.jar
    • orai18n.jar (can be omitted if missing in the driver version) into the <TeamCity Data Directory>/lib/jdbc directory.

      The Oracle JDBC driver must be compatible with the Oracle server.

      It is strongly recommended to locate the driver in your Oracle server installation. Contact your DBA for the files if required.
      Alternatively, download the Oracle JDBC driver from the Oracle web site. Make sure the driver version is compatible with your Oracle server.
  2. In the <TeamCity Data Directory>/config folder rename database.oracle.properties.dist file to database.properties and specify the required settings in this file:

Microsoft SQL Server

Supported versions

On MS SQL server side

TeamCity uses the primary character set (char, varchar, text) for storing internal text data and the national character set (nchar, nvarchar, ntext) to store the user input and data from external systems, like VCS, NTLM, etc.

  1. Create a new database. As the primary collation, it is recommended to use the collation corresponding to your locale. We also suggest using the case-sensitive collation (collation name ending with '_CS_AS'), which is mandatory for the certain functionality (like using non-Windows build agents).
  2. Create TeamCity user and ensure that this user is the owner of the database (grant the user dbo rights). This requirement is necessary because the user needs to have ability to modify the database schema.
    If you're going to use SSL connections, ensure that the version of MS SQL server and the version of java (on the TeamCity side) are compatible. We recommend using the latest update of SQL server:
    • SQL Server 2012 - all versions
    • SQL Server 2008R2 - Service Pack 2 or Service Pack 1 cumulative update 6
    • SQL Server 2008 - Service Pack 3 cumulative update 4
    • SQL Server 2005 - only with JDK 6 update 27 or lower on the TeamCity side
      See details on compatibility issues.
  3. Allocate sufficient transaction log space. The requirements vary depending on how intensively the server will be used. It's recommended to setup not less then 1Gb.
On TeamCity server side

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  1. Download the MS sqljdbc package from the Microsoft Download Center and unpack it. Let us assume the directory where you've unpacked the package into is called sqljdbc_home.
  2. Copy the sqljdbc4.jar from the just downloaded package into the TeamCity Data Directory/lib/jdbc directory.
  3. In the <TeamCity Data Directory>/config folder rename database.mssql.properties.dist file to database.properties file and specify the following required settings in this file:

If you use named instance you can specify the instance name in the connection URL, like the following:

If you prefer to use MS SQL integrated security (Windows authentication), follow the additional steps:

  1. Ensure that your Java bitness is the same as Windows bitness (in other words, use 64-bit Java with 64-bit Windows and 32-bit Java with 32-bit Windows).
  2. Copy the sqljdbc_home /enu/auth/x86/sqljdbc_auth.dll (in case of 32-bit system) or sqljdbc_home /enu/auth/x64/sqljdbc_auth.dll (in case of 64-bit system) into your Windows/system32 directory (or another directory denoted in %PATH%). Ensure that there are no other sqljdbc_auth.dll files in your system).
  3. In the <TeamCity data directory>/config folder create file database.properties and specify the connection URL (with no user names or passwords) in this file:

More details about setup integrated security for MS SQL native jdbc driver can be found here (for MS SQL 2005) and here (for MS SQL 2008).

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See also:

Installation and Upgrade: Migrating to an External Database

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