1 Transaction Manager for Microservices Images for OCI

Learn about the Oracle Transaction Manager for Microservices (MicroTx) image for Oracle Cloud Infrastructure (OCI) and how to use this image to create MicroTx instances in (OCI).

Topics:

• About Transaction Manager for Microservices Images for OCI
  Utilizing the Transaction Manager for Microservices (MicroTx) image for OCI, you can create Transaction Manager for Microservices domain nodes in the Oracle Cloud Infrastructure compute instances, with the entitlement to use MicroTx software.
• Minimum System Requirements
  To create a Transaction Manager for Microservices instance in OCI and run sample applications, you must meet the minimum system requirements.
• Software Requirements
  MicroTx coordinator is a containerized application and can run on any container-based platforms, such as Docker and Kubernetes.

1.1 About Transaction Manager for Microservices Images for OCI

Utilizing the Transaction Manager for Microservices (MicroTx) image for OCI, you can create Transaction Manager for Microservices domain nodes in the Oracle Cloud Infrastructure compute instances, with the entitlement to use MicroTx software.

Transaction Manager for Microservices image for OCI is preinstalled with the Oracle Transaction Manager for Microservices Free 23.4.1. It contains the following directories:

• $HOME/OTMM/otmm-23.4.1 contains the MicroTx distribution package.
• $HOME/OTMM/otmm-23.4.1/samples/xa/java/bankapp contains the source code and other files for the Bank and Stock-Trading application.
• $HOME/OTMM/otmm-23.4.1/samples/xa/java/bankapp/Helmcharts contains the Helm Chart with details to deploy the Bank and Stock-Trading application.

Shapes for Oracle Transaction Manager for Microservices image for OCI Marketplace

You can use any of the following compute shapes to create a Transaction Manager for Microservices instance in OCI.

Standard

VM.Standard1.4, VM.Standard1.8, VM.Standard1.16, VM.Standard.B1.4, VM.Standard.B1.8, VM.Standard.B1.16, VM.Standard2.4, VM.Standard2.8, VM.Standard2.16, VM.Standard2.24, VM.Standard.E2.4, VM.Standard.E2.8

Flexible

VM.Standard.E3.Flex (OCPU constraint: 4-64, Memory constraint: 24-1024 GB); VM.Standard.E4.Flex (OCPU constraint: 4-64, Memory constraint: 24-1024 GB); VM.Standard3.Flex (OCPU constraint: 4-32, Memory constraint: 24-512 GB)

Optimized

VM.Optimized3.Flex (OCPU constraint: 4-18, Memory constraint: 24-256 GB)

Dense

VM.DenseIO1.4, VM.DenseIO1.8, VM.DenseIO1.16, VM.DenseIO2.8, VM.DenseIO2.16, VM.DenseIO2.24

1.2 Minimum System Requirements

To create a Transaction Manager for Microservices instance in OCI and run sample applications, you must meet the minimum system requirements.

Ensure that at least 4 OCPUs, 24 GB memory, and 128 GB of bootable storage volume is available in your Oracle Cloud Infrastructure tenancy.

1.3 Software Requirements

MicroTx coordinator is a containerized application and can run on any container-based platforms, such as Docker and Kubernetes.

Table 1-1 Software Requirements for MicroTx

Component	Requirement
Java 2 JRE for the Java run-time environment	Tested with JRE 17.0.4 and OpenJDK 17
Java 2 Software Development Kit (SDK) for the Java development environment	Tested with JRE 17.0.4 and OpenJDK 17

For more additional information, see Oracle Transaction Manager for Microservices Developer Guide.