[Yandex Cloud documentation](../../index.md) > [Monium](../index.md) > Logs > Getting started with application logs

# Getting started with application logs

Monium Logs is a distributed and highly available system for storing, searching, visualizing, and analyzing logs. The system forms part of the Monium platform and uses its basic components, such as access management, data model, and unified interface.

This section provides general information about transferring logs from your app to Monium and viewing them.

For Yandex Cloud resources, see [Getting started with Yandex Cloud resource logs](quickstart-resources.md).

## Log delivery {#data-send}

If you are new to Yandex Cloud or have no application to test sending logs from, visit [Getting started with Monium](../quickstart.md). The section describes the basic environment setup and sending telemetry data with the help of Otel Collector.

In Monium, log delivery is configured similarly to other types of telemetry. Data is received in OpenTelemetry format; therefore, you can send logs either using an agent or collector that supports it or send directly from the application.

If your cloud and application are already configured and you have prior experience with telemetry, configure log delivery as detailed below.

### Monium.Logs parameters {#main-parameters}

* Monium accepts data in [OpenTelemetry (OTLP)](https://opentelemetry.io/docs/) format.

* Address for writing logs: `ingest.monium.yandex.cloud:443`.

* Authentication:
  * [Service account](../../iam/operations/sa/create.md) with the `monium.logs.writer` role or common `monium.telemetry.writer` role.
  * [API key](../../iam/operations/iam-token/create-for-sa.md) with the `yc.monium.logs.write` or `yc.monium.telemetry.write` scope.

* In header: `x-monium-project=<project_ID>` parameter.

    This may be a cloud (`cloud__<cloud_ID>`) project, folder (`folder__<folder_ID>`) project, or another [project](../collector/project.md#project-create).

* In `OTEL_RESOURCE_ATTRIBUTES`: `cluster` or `deployment.name` and `service` or `service.name`.

    If no cluster is specified, the default option is `cluster = default`.


## Viewing logs {#view-logs}

{% list tabs group=instructions %}

- Monium UI {#console}

  1. On the [Monium](https://monium.yandex.cloud) home page, select **Logs** on the left.
  1. At the top, set the data search period on the timeline.
  1. In the search bar, enter a query to search for application logs:
     
     * `project = <project_ID>`: Select the project specified in `x-monium-project` of the application's telemetry transmission configuration.
     
         This may be a cloud (`cloud__<cloud_ID>`) or folder (`folder__<folder_ID>`) project, or another [project](../collector/project.md#project-create).
     * `cluster = <cluster_name>`: Select the name of the installation that runs your application. If no cluster is specified, `cluster = default` is used.
     * `service = <service_name>`: Name of your application or service. You can use the `OTEL_SERVICE_NAME` environment variable to provide it.
     
       If you do not see the required labels in the suggestions, you can enter them manually. However, the system most likely has not received data with these labels. See [Data delivery troubleshooting](../collector/troubleshooting.md) for possible solutions.

  1. Click **Execute query**.
  1. To view logs for a specific entry, expand it.

{% endlist %}

For more on logs, see [Log search and analysis](logs-explorer.md).

## Service dashboard for logs {#logs-service-dashboard}

The system automatically collects [incoming log metrics](logs-metrics.md): data volume, delivery delays, number of errors by level, etc.

Incoming log charts are available on the service dashboard.

#### See also {#see-also}

* [Monium Traces](../traces/index.md)
* [Getting started with Yandex Cloud resource metrics](../metrics/quickstart.md)