In this section:

Introduction

DTP can be installed with or without an embedded database server (Windows and Linux only). If you prefer to install the database server separately, make sure it meets the following requirements:

• MySQL Versions 5.5.x - 5.7. Version 5.6.25 or newer is highly recommended to ensure optimal performance.
• Beginning with MySQL 5.6, the default binlog_format is STATEMENT, which may cause issues when integrating with external bug tracking systems (BTS), such as Bugzilla or JIRA. To ensure that the BPEL process starts and that the ’Update BTS’ function is available, set binlog_format to ROW or MIXED.
• A known issue in versions of MySQL prior to 5.6.25 may result in problems when databases hosting large amounts of data are queried (see https://bugs.mysql.com/bug.php?id=76996). This issue can cause DTP to wait indefinitely for a query result because no error will be thrown.
• If you are unable to upgrade to or install MySQL 5.6.25, see the workaround documented in Database Driver Requirements.
• Oracle 11g or Oracle 12c. The Oracle database should not be installed on the same machine as DTP.

See Installing and Configuring the Database for instructions on installing a MySQL database.

DTP Enterprise Pack Database

DTP Enterprise Pack, which includes Extension Designer and Policy Center, ships with it's own embedded MongoDB. If you are installing DTP Enterprise Pack, we recommend using an XFS file system in Linux per the MongoDB documentation.

Asynchronous I/O Library

The libaio package, which is included in some Linux distributions, is required if you are using the DTP distribution for Linux that ships with an embedded database server. If the library is not already on your Linux system, install it using the appropriate package manager for your distribution. The following instructions are provided to help you install libaio on several common Linux distributions:

Red Hat and CentOS

sudo yum install libaio

Ubuntu

sudo apt-get install libaio1

Fedora

Install the RPM for the libaio package from the Fedora website at http://fedoraproject.org/.

Minimum Number of Database Connections

The database server should provide at least 150 concurrent connections for DTP. If the database server does not provide sufficient connections, DTP may not be able to create a new connection to the database prior to reaching the maximum number of connections.

JDBC Drivers

The standard DTP distribution installation does not ship with the MySQL and Oracle JDBC drivers necessary to set up a database connection. You will need to download following drivers:

• MySQL Java Connector, version 5.1.32 or later.
• Oracle Database JDBC Drivers - Minimum version is 11g Release 2 - Java 1.6 (ojdbc6.jar).

When the installation is complete, place the drivers in the [DTP_HOME]/lib/thirdparty directory.

You do not need to download and install the JDBC drivers if you are installing the DTP distribution that includes an embedded database server. The drivers are packaged with the database server so that you can begin using the database immediately.

MySQL Charset and Collation Settings

The MySQL creation scripts for the DTP and GRS databases use the character set utf8 and collation utf8_general_ci so that UTF-8 characters (e.g., Japanese or Chinese) can be stored in the database. DTP does not support UTF-8 4 byte character encoding ("utf8mb4")

The MySQL server character set and collation must also be set to UTF-8 to save UTF-8 characters in the database. We highly recommend that the MySQL server changes are made prior to creating the DTP and GRS databases:

1. Locate the my.ini (Windows) or my.cnf (Linux) and open it in an editor
2. In the section under [mysqld], add/edit the following properties:

character-set-server = utf8

collation-server = utf8_general_ci

See the MySQL documentation for more information about server character set configuration: https://dev.mysql.com/doc/refman/5.6/en/charset-server.html.

Oracle Charset and Collation Settings

Oracle recommends setting the target character set to AL32UTF8. See the Oracle Database Migration Assistant for Unicode documentation for instructions: https://docs.oracle.com/database/121/DUMAG/ch2migrasteps.htm#DUMAG136.

MySQL Databases

DTP may make many simultaneous requests to the server, which may cause the MySQL server to open many files at the same time to process the requests. As a result, the limit on open file descriptors set by MySQL may be exceeded. Please refer to the MySQL documentation for more information on this issue, including possible resolutions: http://dev.mysql.com/doc/refman/5.6/en/table-cache.html.