MOLT Replicator Installation

This page explains the prerequisites for using and then describes how to install it.

Supported databases

MOLT Replicator supports the following source and target databases:

• PostgreSQL 11-16
• MySQL 5.7-8.4
• Oracle Database 19c (Enterprise Edition) and 21c (Express Edition)
• CockroachDB (all currently )

Installation

To install MOLT, download the binary that matches your architecture and source database:

Operating System	Architecture	PostgreSQL/MySQL	Oracle
Windows	AMD 64-bit	Download	N/A
	ARM 64-bit	Download	N/A
Linux	AMD 64-bit	Download	Download
	ARM 64-bit	Download	N/A
Mac	AMD 64-bit	Download	Download
	ARM 64-bit	Download	Download

The download package includes the following:

• molt binary.
• replicator binary.
• Grafana dashboard JSON files for MOLT Fetch (grafana_dashboard.json) and Replicator (replicator_grafana_dashboard.json) metrics. Each bundled dashboard is compatible with its corresponding binary version.
  • Oracle downloads also include the Oracle-specific Replicator dashboard (replicator_oracle_grafana_dashboard.json).

For ease of use, keep both molt and replicator in your current working directory.

To display the current version of each binary, run molt --version and replicator --version.

molt is bundled with the latest replicator version available at the time of the MOLT release. This means that the MOLT download always contains the latest released version of . To verify that the molt and replicator versions match, run molt --version and replicator --version.

For previous binaries, refer to the MOLT version manifest. For release details, refer to the .

Docker images

MOLT Fetch

Docker multi-platform images containing both the AMD and ARM molt and replicator binaries are available. To pull the latest image for PostgreSQL and MySQL:

docker pull cockroachdb/molt

To pull a specific version (for example, 1.1.3):

docker pull cockroachdb/molt:1.1.3

To pull the latest image for Oracle (note that only linux/amd64 is supported):

docker pull cockroachdb/molt:oracle-latest

MOLT Replicator

Docker images for MOLT Replicator are also available as a standalone binary:

docker pull cockroachdb/replicator

To pull a specific version (for example, v1.1.1):

docker pull cockroachdb/replicator:v1.1.1

See also