Viewing MongoDB cluster logs

If you do not have the Yandex Cloud command line interface yet, install and initialize it.

The folder specified in the CLI profile is used by default. You can specify a different folder using the --folder-name or --folder-id parameter.

1. View a description of the CLI command to view cluster logs:

   yc managed-mongodb cluster list-logs --help
   

2. Run the following command to get cluster logs (our example does not contain a complete list of available parameters):

   yc managed-mongodb cluster list-logs <cluster_name_or_ID> \
      --limit <record_number_limit> \
      --service-type <service_type> \
      --columns <list_of_columns_with_output_data> \
      --filter <record_filter_settings> \
      --since <left_boundary_of_time_range> \
      --until <right_boundary_of_time_range>
   

   Where:

   • --limit: limits on the number of entries to output.

   • --service-type: Service type to display records for (mongod, mongos, mongocfg, or audit).

   • --columns: List of columns with output data:

     • component: Type of component to be logged. For example, CONTROL.
     • context: Name of the module being executed, such as signalProcessingThread.
     • hostname: Host name.
     • message: Message output by the component.
     • severity: Logging level, such as I or W (Info or Warning, respectively).

     Note

     A list of columns to output depends on the selected --service-type.

   • --filter: record filter settings, for example, message.hostname='node1.mdb.yandexcloud.net'.

   • --since: Left boundary of a time range in RFC-3339, HH:MM:SS format or a time interval relative to the current time. Examples: 2006-01-02T15:04:05Z, 15:04:05, 2h, 3h30m ago.

   • --until: right boundary of a time range, the format is similar to that of --since.

You can request the cluster name and ID with a list of clusters in the folder.

To get a cluster log, use the listLogs REST API method for the Cluster resource or the ClusterService/ListLogs gRPC API call, and provide in the request:

• Cluster ID in the clusterId parameter.

  To find out the cluster ID, get a list of clusters in the folder.

• Log type, in the serviceType parameter:

  • MONGOD: MongoDB operations log.
  • AUDIT: Audit log.

To get a cluster log stream, use the streamLogs REST API method for the Cluster resource or the ClusterService/StreamLogs gRPC API call, and provide in the request:

• Cluster ID in the clusterId parameter.

  To find out the cluster ID, get a list of clusters in the folder.

• Log type, in the serviceType parameter:

  • MONGOD: MongoDB operations log.
  • AUDIT: Audit log.