# Orchestrator Read-only Replica

> Orchestrator maintains a read-only replica of its read-write operational database, with the main purpose of improving performance. Some read-only workloads are directed towards the read-only replica, so as to optimize write-replica consumption. This allows data to be read and loaded faster, which, in turn, ensures the performance of your system.

Orchestrator maintains a read-only replica of its read-write operational database, with the main purpose of improving performance. Some read-only workloads are directed towards the read-only replica, so as to optimize write-replica consumption. This allows data to be read and loaded faster, which, in turn, ensures the performance of your system.

As a result of this implementation, a slight delay between the write and read actions might occur. This is to be expected, and has no impact on data becoming available.

An example of this scenario is retrieving a queue item as soon as it was added: when performed from the interface, the new queue items might not be displayed instantly, as there is a slight asynchronicity between the operational database (where the item is written) and the replica (which is called for reading the item). You can, however, avoid this by using the [Get transaction item](https://docs.uipath.com/activities/docs/get-queue-item) activity instead of [Get queue items](https://docs.uipath.com/activities/docs/get-queue-items), since the former includes the queue item in its response.

## Retrieving queue items

Queue items data can be retrieved from the read-only replica.

You can enable this through the `Features.Queues.QueryUseReadOnlyReplica` parameter in the `UiPath.Orchestrator.dll.config` file. [Details...](https://docs.uipath.com/orchestrator/standalone/2023.10/installation-guide/uipath-orchestrator-dll-config#orchestrator-read-only-replica)

## Orchestrator monitoring

Data used to display your monitoring views can be retrieved from the read-only replica.

You can enable this through the `Monitoring.UseReadOnlyReplica` parameter in the `UiPath.Orchestrator.dll.config` file. [Details...](https://docs.uipath.com/orchestrator/standalone/2023.10/installation-guide/uipath-orchestrator-dll-config#orchestrator-read-only-replica)