Administration Console Online Help

Server --> Configuration --> Health Monitoring

Overview

WebLogic Server provides a self-health monitoring capability to improve the reliability and availability of servers in a domain. Selected subsystems within each WebLogic Server instance monitor their health status based on criteria specific to the subsystem.

Use this page to configure the frequency of this server's automated health checks, and the frequency with which the Node Manager application (optional) checks the servers's health state. You can also use this page to specify whether Node Manager automatically stops and restarts the server if the server reaches the "failed" health state.

Tasks

Configuring a Machine

Configure Self-Health Monitoring, Shutdown, and Restart for Managed Servers

Attributes

Table 270-1

Attribute Label	Description	Value Constraints
Auto Restart	When Auto Restart is enabled, Node Manager will try to restart the Managed Server if it crashes or goes down unexpectedly, for instance, as the result of a machine reboot. Deselect the check box if you do not want Node Manager to automatically restart the Managed Server after a crash. Enables/Disables automatic restart of a crashed server by the Node Manager. MBean: `weblogic.management. configuration.ServerMBean` Attribute: `AutoRestart`	Default: true Valid values: true false Configurable: yes Dynamic: yes
Auto Kill If Failed	Check this box to enable Node Manager to automatically kill the Managed Server when its health state is `failed`. By default, this option is disabled. MBean: `weblogic.management. configuration.ServerMBean` Attribute: `AutoKillIfFailed`	Default: false Valid values: true false Configurable: yes Dynamic: yes
Restart Interval	Enter the period of time (in seconds) during which Node Manager should attempt to restart the Managed Server. This attribute is used in conjunction with the Max Restarts within Interval attribute to limit attempts to restart the Managed Server. MBean: `weblogic.management. configuration.ServerMBean` Attribute: `RestartIntervalSeconds`	Units: seconds Minimum: 300 Maximum: 2147483647 Default: 3600 Configurable: yes Dynamic: yes
Max Restarts within Interval	Enter the maximum number of times Node Manager can restart the Managed Server within the interval specified by Restart Interval. MBean: `weblogic.management. configuration.ServerMBean` Attribute: `RestartMax`	Minimum: 0 Maximum: 2147483647 Default: 2 Configurable: yes Dynamic: yes
Health Check Interval	Specify the interval (in seconds) between Node Manager health state queries to the Managed Server. MBean: `weblogic.management. configuration.ServerMBean` Attribute: `HealthCheckIntervalSeconds`	Units: seconds Minimum: 1 Maximum: 2147483647 Default: 180 Configurable: yes Dynamic: yes
Health Check Timeout	Enter the number of seconds that Node Manager waits for a response to a health state query. If the timeout is reached, Node Managed assumes the Managed Server has failed. MBean: `weblogic.management. configuration.ServerMBean` Attribute: `HealthCheckTimeoutSeconds`	Units: seconds Minimum: 1 Maximum: 2147483647 Default: 60 Configurable: yes Dynamic: yes
Restart Delay Seconds	Enter the number of seconds that Node Manager should wait before trying to restart a Managed Server. After killing a server process, the system might need several seconds to release the TCP port(s) the server was using. If Node Manager attempts to restart the Managed Server while its ports are still active, the startup attempt fails. MBean: `weblogic.management. configuration.ServerMBean` Attribute: `RestartDelaySeconds`	Units: seconds Minimum: 0 Maximum: 2147483647 Default: 0 Configurable: yes Dynamic: yes

Attribute Label

Description

Value Constraints

Auto Restart

When Auto Restart is enabled, Node Manager will try to restart the Managed Server if it crashes or goes down unexpectedly, for instance, as the result of a machine reboot. Deselect the check box if you do not want Node Manager to automatically restart the Managed Server after a crash.

Enables/Disables automatic restart of a crashed server by the Node Manager.

MBean: weblogic.management. configuration.ServerMBean

Attribute: AutoRestart

Default: true

Valid values:

true

false

Configurable: yes

Dynamic: yes

Auto Kill If Failed

Check this box to enable Node Manager to automatically kill the Managed Server when its health state is failed. By default, this option is disabled.

MBean: weblogic.management. configuration.ServerMBean

Attribute: AutoKillIfFailed

Default: false

Valid values:

true

false

Configurable: yes

Dynamic: yes

Restart Interval

Enter the period of time (in seconds) during which Node Manager should attempt to restart the Managed Server. This attribute is used in conjunction with the Max Restarts within Interval attribute to limit attempts to restart the Managed Server.

MBean: weblogic.management. configuration.ServerMBean

Attribute: RestartIntervalSeconds

Units: seconds

Minimum: 300

Maximum: 2147483647

Default: 3600

Configurable: yes

Dynamic: yes

Max Restarts within Interval

Enter the maximum number of times Node Manager can restart the Managed Server within the interval specified by Restart Interval.

MBean: weblogic.management. configuration.ServerMBean

Attribute: RestartMax

Minimum: 0

Maximum: 2147483647

Default: 2

Configurable: yes

Dynamic: yes

Health Check Interval

Specify the interval (in seconds) between Node Manager health state queries to the Managed Server.

MBean: weblogic.management. configuration.ServerMBean

Attribute: HealthCheckIntervalSeconds

Units: seconds

Minimum: 1

Maximum: 2147483647

Default: 180

Configurable: yes

Dynamic: yes

Health Check Timeout

Enter the number of seconds that Node Manager waits for a response to a health state query. If the timeout is reached, Node Managed assumes the Managed Server has failed.

MBean: weblogic.management. configuration.ServerMBean

Attribute: HealthCheckTimeoutSeconds

Units: seconds

Minimum: 1

Maximum: 2147483647

Default: 60

Configurable: yes

Dynamic: yes

Restart Delay Seconds

Enter the number of seconds that Node Manager should wait before trying to restart a Managed Server. After killing a server process, the system might need several seconds to release the TCP port(s) the server was using. If Node Manager attempts to restart the Managed Server while its ports are still active, the startup attempt fails.

MBean: weblogic.management. configuration.ServerMBean

Attribute: RestartDelaySeconds

Units: seconds

Minimum: 0

Maximum: 2147483647

Default: 0

Configurable: yes

Dynamic: yes

Server --> Configuration --> Health Monitoring

Overview

Tasks

Related Topics

Attributes