(v24) System Requirements

System Requirements

Composer can be downloaded and installed in different Linux and Windows distributions. You can also deploy Composer in the cloud. To try Composer for free, check out our Free Trials page.

The client application is accessed using web browsers that support WebSocket technology. See caniuse.com to check whether your web browser supports WebSocket technology. The following requirements are needed in order to successfully deploy and access the Composer Server in your operating environment.

• Operating System and Software Requirements

• Hardware Requirements

• Metadata Repository

• Network Requirements

See also Installation Prerequisites.

Operating System and Software Requirements

For all deployments, a 64-bit OS is required. The Composer server also uses Java and PostgreSQL. Ensure that the appropriate version of these tools are used in the deployment of Composer in your operating environment.

The following table shows the operating systems supported, along with the corresponding minimum supported version.

Distribution	Supported Version
CentOS	9
Red Hat	7 & 8
Ubuntu	18, 20, 22
Amazon Linux	2
Windows Server	2012 R2, 2016, 2019

Note: CentOS Stream 9 is supported for new instances of Composer 24.3 and higher. Contact Support for upgrade assistance from earlier versions.

Support services required versions:

Service	Required Version
PostgreSQL	12
Java	11 for Composer version 23.1, 17 for Composer 23.2 and later

Hardware Requirements

The following server specifications are recommended:

• 64 GB RAM (minimum is 16 GB)

• 500 GB disk space

• 16 cores

See also Server Size Guidelines.

Metadata Repository

Important: Composer uses a packaged PostgreSQL database instance to store its metadata. Use the provided instance due to the specific configuration and version combination:

• Composer v24.2 and earlier: PostgreSQL 12

• Composer v24.3 and later: PostgreSQL 16

If you would like to use another PostgreSQL instance, contact Technical Support for further guidance.

Note: New installations of Composer (v24.3 and later) use PostgreSQL 16. If you are upgrading your environment to v24.3 or later, you can retain your existing PostgreSQL version.

Network Requirements

Ports

The following table lists the ports you must consider when installing or upgrading Composer.

Composer Feature	Microservice	Default Port	Required?	Notes
Composer server	zoomdata	8080	P
Composer server	zoomdata	8443, 443	O	Required only if you use HTTPS
Consul	zoomdata-consul	8500	P
Query Engine	zoomdata-query-engine	5580	P
Appropriate Composer connectors	zoomdata-edc-<connector>	varies	P	Only the ports for the Composer connectors to the data stores you will use are required. For a complete list, see Data Connector Reference.
Data Writer	zoomdata-data-writer	8081	O	Required only if you use flat file or Upload API sources.
Screenshot Service	zoomdata-screenshot-service	8083	O	Required only if you schedule dashboard reports.
PostgreSQL metadata repository	zoomdata-postgres	5432	P

Time Synchronization

Composer recommends installing the Network Time Protocol daemon (NTPD) to allow for time synchronization of networked servers to Coordinated Universal Time (UTC), if not already available in your network. See Using the Network Time Protocol to Synchronize Time for guidance.