System Requirements

Composer can be downloaded and installed in different Linux 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 Linux deployments, 64-bit Linux-based OS is required. The following table shows the Linux distributions supported along with the corresponding minimum supported version. 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.

Distribution	Supported Version
CentOS	7
Red Hat	7 & 8
Ubuntu	18, 20
PostgreSQL	12
Java	11.0.5 (or later)
Amazon Linux	2
Windows Server	2012 R2, 2016, 2019

Important CentOS 8 Information

CentOS 8 is no longer supported by Red Hat Linux (RHEL). Use CentOS 7 instead.

Important Ubuntu Information

Ubuntu users who have Composer or Zoomdata versions earlier than 5.8 installed must first remove the legacy repository before upgrading Composer 5.8 or later. Use this command:

sudo rm -f /etc/apt/sources.list.d/saltstack.list

Hardware Requirements

For RPM and Ubuntu installations, 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

Composer uses a packaged PostgreSQL v12 database instance to store its metadata and strongly recommends using this instance due to the specific configuration and version employed. If you would like to use another PostgreSQL instance, contact Technical Support for further guidance.

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 Composer 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.