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Managed Service for Greenplum® API, REST: Cluster.StreamLogs

Written by
Updated at October 28, 2024

Same as ListLogs but using server-side streaming. Also allows for tail -f semantics.

HTTP request

GET https://mdb.api.cloud.yandex.net/managed-greenplum/v1/clusters/{clusterId}:stream_logs

Path parameters

Field

Description

clusterId

string

Required field. ID of the Greenplum® cluster.

Query parameters

Field

Description

columnFilter[]

string

Columns from log table to get in the response.
If no columns are specified, entire log records are returned.

serviceType

enum (ServiceType)

Type of the service to request logs about.

  • SERVICE_TYPE_UNSPECIFIED: Type is not specified.
  • GREENPLUM: Greenplum® activity logs.
  • GREENPLUM_POOLER: Greenplum® pooler logs.
  • GREENPLUM_PXF: Greenplum® PXF service logs.

fromTime

string (date-time)

Start timestamp for the logs request.

String in RFC3339 text format. The range of possible values is from
0001-01-01T00:00:00Z to 9999-12-31T23:59:59.999999999Z, i.e. from 0 to 9 digits for fractions of a second.

To work with values in this field, use the APIs described in the
Protocol Buffers reference.
In some languages, built-in datetime utilities do not support nanosecond precision (9 digits).

toTime

string (date-time)

End timestamp for the logs request.

If this field is not set, all existing logs are sent as well as the new ones as they appear.

In essence it has tail -f semantics.

String in RFC3339 text format. The range of possible values is from
0001-01-01T00:00:00Z to 9999-12-31T23:59:59.999999999Z, i.e. from 0 to 9 digits for fractions of a second.

To work with values in this field, use the APIs described in the
Protocol Buffers reference.
In some languages, built-in datetime utilities do not support nanosecond precision (9 digits).

recordToken

string

Record token. Set recordToken to the [StreamLogs.next_record_token] returned by the previous StreamLogs request to start streaming from the next log record.

filter

string

A filter expression that filters resources listed in the response.

The expression must specify:

  1. A field name. Currently filtering can be applied to the [LogRecord.logs.message.hostname], [LogRecord.logs.message.error_severity] (for GREENPLUM service), [LogRecord.logs.message.level] (for POOLER service) fields.

  2. An = operator.

  3. A value in double quotes ("). Must be 1-63 characters long and match the regular expression [a-z0-9.-]{1,61}.

Examples of a filter:

  • message.hostname='node1.db.cloud.yandex.net';
  • message.error_severity IN ("ERROR", "FATAL", "PANIC") AND message.hostname = "node1.db.cloud.yandex.net".

Response

HTTP Code: 200 - OK

{
  "record": {
    "timestamp": "string",
    "message": "string"
  },
  "nextRecordToken": "string"
}

Field

Description

record

LogRecord

One of the requested log records.

nextRecordToken

string

This token allows you to continue streaming logs starting from the exact same record.

To do that, specify value of nextRecordToken as the value for [StreamLogs.record_token] parameter in the next StreamLogs request.

This value is interchangeable with [ListLogs.next_page_token] from ListLogs method.

LogRecord

Field

Description

timestamp

string (date-time)

Time when the log was recorded.

String in RFC3339 text format. The range of possible values is from
0001-01-01T00:00:00Z to 9999-12-31T23:59:59.999999999Z, i.e. from 0 to 9 digits for fractions of a second.

To work with values in this field, use the APIs described in the
Protocol Buffers reference.
In some languages, built-in datetime utilities do not support nanosecond precision (9 digits).

message

string

Contents of the log record.
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