Help Center/ GaussDB(DWS)/ Standard Data Warehouse (8.1.3.x)/ GUC Parameters/ Alarm Detection
Updated on 2023-10-31 GMT+08:00
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Alarm Detection

During cluster running, error scenarios can be detected in a timely manner to inform users as soon as possible.

enable_alarm

Parameter description: Enables the alarm detection thread to detect the fault scenarios that may occur in the database.

Type: POSTMASTER

Value range: Boolean

  • on indicates the alarm detection thread can be enabled.
  • off indicates the alarm detection thread cannot be enabled.

Default value: on

connection_alarm_rate

Parameter description: Specifies the ratio restriction that the maximum number of allowed parallel connections to the database. The maximum number of concurrent connections to the database is max_connections x connection_alarm_rate.

Type: SIGHUP

Value range: a floating point number ranging from 0.0 to 1.0

Default value: 0.9

alarm_report_interval

Parameter description: Specifies the interval at which an alarm is reported.

Type: SIGHUP

Value range: a non-negative integer. The unit is second.

Default value: 10

Parent topic: GUC Parameters