Viewing MongoDB cluster logs
Managed Service for MongoDB allows you to get a cluster log snippet for the selected period and view logs in real time.
Note
Cluster logs are kept for 30 days.
Getting a cluster log
- Go to the folder page and select Managed Service for MongoDB.
- Click the name of the cluster you need and select the
Logs tab. - Specify the time period you want the log info for: enter it manually or select in the calendar using the date input field.
- Specify the hosts and logging level in the line with the date input field if needed.
A list of log entries for the selected time period will be displayed. To view detailed information about an event, click the respective entry in the list.
If there are too many records and not all of them are displayed, click Load more at the end of the list.
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.
-
View the description of the CLI command to view cluster logs:
yc managed-mongodb cluster list-logs --help
-
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 <entry_number_limit> \ --service-type <service_type> \ --columns <list_of_columns_for_data_output> \ --filter <entry_filtration_settings> \ --since <time_range_left_boundary> \ --until <time_range_right_boundary>
Where:
-
--limit
: limits on the number of entries to output. -
--service-type
: Type of the service for which you want to output records (mongod
,mongos
,mongocfg
, oraudit
). -
--columns
: List of columns for data output:component
: Type of component to log. e.g.,CONTROL
.context
: Name of the module to execute, such assignalProcessingThread
.hostname
: Host name.message
: Message output by the component.severity
: Logging level, e.g.,I
orW
(Info
andWarning
, 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.
Getting a cluster log stream
This method allows you to get cluster logs in real time.
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.
To view cluster logs as they become available, run this command:
yc managed-mongodb cluster list-logs <cluster_name_or_ID> --follow
You can request the cluster name and ID with a list of clusters in the folder.
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.