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Embedding Informix®
When you embed HCL Informix®, you can use enterprise-class high-availability and high performance with embeddability features such as easy programmability, a small disk and memory footprint, and silent deployment.
Embedding HCL Informix®
The Informix® Embeddability Guide describes how to embed HCL Informix in your applications.
Manage memory in embedded environments
You can manage memory in embedded environments by enabling the database server to automatically rotate and delete online message log files, configuring the actions that the server takes to continue processing when memory is critically low, and enabling the server to reserve a specific amount of memory for use when critical rollback activities are needed and the server has limited free memory.
Maintain a targeted amount of memory in embedded applications
You can configure the database server to continue processing when memory is critically low, instead of returning an out of memory error.

Embedding Informix®
When you embed HCL Informix®, you can use enterprise-class high-availability and high performance with embeddability features such as easy programmability, a small disk and memory footprint, and silent deployment.
- Embedding HCL Informix®
  The Informix® Embeddability Guide describes how to embed HCL Informix in your applications.
  - Overview of embedding Informix® products
    You can embed Informix® products in your applications by taking advantage of customizable deployment options and configurable administration features. You can use the embeddability features in combination with other product features for installation footprint reduction and high-availability clustering to achieve a quicker and easier end-to-end deployment solution.
  - Deploying Informix® software
    The product supports embeddability tools that enable lightweight, faster deployment of the database server and related client programs.
  - Informix® embeddability deployment tutorial
    The purpose of this tutorial is to provide steps and scripts needed for silent end-to-end deployment of HCL Informix® on Linux™ and Windows™ using the deployment assistant and the deployment utility.
  - Manage memory in embedded environments
    You can manage memory in embedded environments by enabling the database server to automatically rotate and delete online message log files, configuring the actions that the server takes to continue processing when memory is critically low, and enabling the server to reserve a specific amount of memory for use when critical rollback activities are needed and the server has limited free memory.
    - Optimize storage
      You can optimize storage by compressing data, configuring the server to add more storage space automatically, and defragmenting partitions. Compressing data reduces the amount of disk space needed for your applications.
    - Manage message logs in an embedded environment
      You can enable the database server to automatically rotate and delete online message log files, and you can specify the maximum number of online, ON-Bar activity, or ON-Bar debug message log files to rotate. The Scheduler tasks that rotate and delete these message log files are useful for embedded applications, because they reduce DBA or system administrator requirements for managing the logs.
    - Reserve memory for critical activities in embedded environments
      You can reserve a specific amount of memory for use when critical activities (such as rollback activities) are needed and the database server has limited free memory. When you reserve memory, critical activities, such as rollback activities, can complete even when you receive out-of-memory errors.
    - Maintain a targeted amount of memory in embedded applications
      You can configure the database server to continue processing when memory is critically low, instead of returning an out of memory error.

Maintain a targeted amount of memory in embedded applications

You can configure the database server to continue processing when memory is critically low, instead of returning an out of memory error.

You specify the criteria for terminating sessions based on idle time, memory usage, and other factors so that the targeted application can continue to process. Configuring the low memory response is useful for embedded applications that have memory limitations.

To configure a targeted amount of memory in embedded applications:

Set the LOW_MEMORY_MGR configuration parameter to 1, which enables the automatic low memory management when the server starts.
Set the threshold parameters for the amount of memory to maintain by using an SQL administration API command with the scheduler lmm enable argument.

To disable automatic low memory management, run an SQL administration API command with the scheduler lmm disable argument.