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Download Logs

You can download the mongot process logs from the Atlas UI. The mongot process logs contain information such as the following:

  • Index creation and index management operations.

  • Queries served by the process.

The mongot log is in JSON format and contains the following fields:

JSON Field
Description
Necessity

t

UTC timestamp of the log in ISO-8601 format. For example, 2025-03-18T23:38:22.018+0000.

Required

s

Logback severity level of the log. The following values are valid:

  • TRACE

  • DEBUG

  • INFO

  • WARN

  • ERROR

Required

svc

Service that emitted the log. Value is MONGOT for the Atlas Search process.

Required

ctx

The context for the log entry, which is the thread that emitted the log. For example, init-lifecycle-0, which indicates that the index is being initialized.

Required

n

Name of the logger that emitted the log, which is set to the Java class name. For example, com.xgen.mongot.index.lucene.InitializedLuceneSearchIndex.

Required

msg

Human-readable description of the log event. Information needed to search or filter logs is in the attr field.

Required

attr

One or more key-value pairs (log attributes) that provide additional details not present in the other fields. Attributes might contain the entire stack trace as a string to ensure that it is fully contained in a single log message for easier ingestion. Omitted if no attributes are present.

Optional

To download the logs, complete the following steps:

1

Warning

Navigation Improvements In Progress

We're currently rolling out a new and improved navigation experience. If the following steps don't match your view in the Atlas UI, see the preview documentation.

  1. If it's not already displayed, select the organization that contains your desired project from the Organizations menu in the navigation bar.

  2. If it's not already displayed, select your desired project from the Projects menu in the navigation bar.

  3. If it's not already displayed, click Clusters in the sidebar.

    The Clusters page displays.

2
  1. Click the ellipsis icon (...) next to the cluster that contains the mongod instance whose logs you want to download.

  2. Select Download Logs.

3

In the Download Logs dialog box, edit the following fields:

Field
Content

Select process

Select the mongot process.

Select server

Select the server in the cluster whose logs you want to retrieve.

Time Period

Select the time frame of log activity to return. If you select Custom Time, specify the inclusive start and end time of log activity to return. The start time must be less than 30 days ago.

IMPORTANT: To ensure that your log data returns within the desired time frame, set the time zone in your Atlas project settings.

4

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