Viewing PostgreSQL cluster logs
Managed Service for PostgreSQL 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 PostgreSQL.
- Click the name of the desired cluster and select the Logs tab.
- Specify the time period for which you want to display logs: enter it manually or select it in the calendar by clicking on the date field.
- If required, request the
POOLER
log, select the hosts and logging level in the drop-down lists next to the date input field.
A list of log entries for the selected time period will be displayed. To view detailed information about an event, click on the respective entry in the list.
If there are too many records and only some of them are displayed, click the Load more link at the end of the list.
If you don't have the Nebius AI 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 a description of the CLI command to view cluster logs:
ncp managed-postgresql cluster list-logs --help
-
Run the following command to get cluster logs (our example does not contain a complete list of available parameters):
ncp managed-postgresql cluster list-logs <cluster name or ID> \ --limit <record number limit> \ --format <output format> \ --columns <list of columns to display information> \ --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. -
--format
: Format for log entries (text
,yaml
,json
, orjson-rest
). -
--service-type
: Type of service to output records for (postgresql
orpooler
). -
--columns
: List of columns to display information:hostname
: Name of the host.db
: Database name.level
: Logging level, such asinfo
.pid
: ID of the current session's server process.text
: Message output by the component.
Note
The example only contains the main columns. A list of columns to output depends on the selected
--service-type
.To output separate columns, provide the
--format
key and specify the output format (yaml
,json
, orjson-rest
). Columns are not supported fortext
output format that is set by default. -
--filter
: record filter settings, for example,message.hostname='node1.mdb.nemax.nebius.cloud'
. -
--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 a cluster name and ID with a list of clusters in the folder.
Getting a cluster log stream
This method allows you to get cluster logs in real time.
If you don't have the Nebius AI 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:
ncp managed-postgresql cluster list-logs <cluster name or ID> --follow
You can request a cluster name and ID with a list of clusters in the folder.