1 - System requirements and prerequisites

Setups and prerequisites are listed for informational purposes only.

System Requirements

Some functionnalities (and especially data import or data export) may require that 500 Mo are kept free and available for the database server.

Prerequisites

• Operating system :

• Virtual Machine: JVM 1.8 (it is IMPERATIVE to use Java 8 or Java 11 with Squash 1.21.0+)

• Application Server: none (Squash TM embeds its own application server: Tomcat in Squash TM 1.13+)

• Database: none or Mariabd 10.5+, PostGres 9.4+.

Please note that Squash-TM comes with an embedded H2 database for testing purpose only. H2 should not be used as production database.

• Recommended components :

  • Debian Buster,

  • Mariadb 10.5

  • From Squash TM 1.21, MySQL is no longer supported. For the previous Squash versions, the MySQL supported versions are of between 5.7.17 to 5.7.x. The prior and following versions are not supported anymore.

  • Whatever the version, the @@sql_mode must NOT contain the tag ONLY_FULL_GROUP_BY.

  • For MySQL versions 5.7 and over, the @@sql_mode variable must contain the tags:

NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES

This variable has to be set in the configuration file my.ini, in the section [mysqld].

• • Mantis 2.x+ or Jira 8+

  • Apache (web front end)

• Regarding MariaDB: We recommend strongly 10.2+. MariaDB 10.1 is not compatible with Squash TM.

• @@sql_mode should NOT contain the tag ONLY_FULL_GROUP_BY.

• @@sql_mode variable must contain the tags:

NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES

This varaible has to be set in the configuration file my.ini, in the section [mysqld].

• Regarding MySQL : We recommend you to migrate from MySQL to MariaDB. To do so, please refer to MariaDB documentation.

• Regarding PostgreSQL: Squash TM uses functions from the extensions plpgsql and, for versions 1.20+, uuid-ossp. Make sure this extensions are available in your instance of PostgreSQL. The following query :

SELECT * FROM pg_available_extensions;

will help you to know if these extensions are available on your PostgreSQL instance. If not, you first have to make it available before installing Squash-TM.

• In Unix configurations, the ulimit for maximum open files has to bet set high enough (60 000). Squash will otherwise not be able to work properly, and the log file will specify "Too many files opened".