weblogic.management.configuration
Interface OverloadProtectionMBean

All Superinterfaces:

ConfigurationMBean, DescriptorBean, DynamicMBean, MBeanRegistration, NotificationBroadcaster, SettableBean, WebLogicMBean

public interface OverloadProtectionMBean
extends ConfigurationMBean

This Mbean has attributes concerning server overload protection.

NO_ACTION

static final String NO_ACTION

See Also:

Constant Field Values

SYSTEM_EXIT

static final String SYSTEM_EXIT

Exit the server process when the kernel encounters a panic condition like an unhandled OOME. An unhandled OOME could lead to inconsistent state and a server restart is advisable if backed by node manager or a HA agent.

See Also:

Constant Field Values

FORCE_SHUTDOWN

static final String FORCE_SHUTDOWN

Enable automatic forceshutdown of the server on failed state. The server self-health monitoring detects fatal failures and mark the server as failed. The server can be restarted using NodeManager or a HA agent.

See Also:

Constant Field Values

ADMIN_STATE

static final String ADMIN_STATE

Enable automatic suspend of the server on failed state. The server goes into admin state after the suspend operation. The server self-health monitoring detects fatal failures and marks the server as failed. The suspend operation is applied only when the server as an admin channel and is in the running state before the failure. Otherwise it will remain in the failed state till an administrator issues a shutdown command.

See Also:

Constant Field Values

setSharedCapacityForWorkManagers

void setSharedCapacityForWorkManagers(int capacity)

Total number of requests that can be present in the server. This includes requests that are enqueued and those under execution.

The server performs a differentiated denial of service on reaching the shared capacity. A request with higher priority will be accepted in place of a lower priority request already in the queue. The lower priority request is kept waiting in the queue till all high priority requests are executed. Further enqueues of the low priority requests are rejected right away.

Default Value:

65536

Maximum Value:

1073741824

Minimum Value:

1

getSharedCapacityForWorkManagers

int getSharedCapacityForWorkManagers()

Total number of requests that can be present in the server. This includes requests that are enqueued and those under execution.

The server performs a differentiated denial of service on reaching the shared capacity. A request with higher priority will be accepted in place of a lower priority request already in the queue. The lower priority request is kept waiting in the queue till all high priority requests are executed. Further enqueues of the low priority requests are rejected right away.

Maximum Value:

1073741824

Minimum Value:

1

setPanicAction

void setPanicAction(String action)

Exit the server process when the kernel encounters a panic condition like an unhandled OOME. An unhandled OOME could lead to inconsistent state and a server restart is advisable if backed by node manager or a HA agent.

Default Value:

OverloadProtectionMBean.NO_ACTION

Valid Values:

OverloadProtectionMBean.NO_ACTION, OverloadProtectionMBean.SYSTEM_EXIT

getPanicAction

String getPanicAction()

Exit the server process when the kernel encounters a panic condition like an unhandled OOME. An unhandled OOME could lead to inconsistent state and a server restart is advisable if backed by node manager or a HA agent.

Valid Values:

OverloadProtectionMBean.NO_ACTION, OverloadProtectionMBean.SYSTEM_EXIT

setFailureAction

void setFailureAction(String action)

Enable automatic forceshutdown of the server on failed state. The server self-health monitoring detects fatal failures and mark the server as failed. The server can be restarted using NodeManager or a HA agent.

Default Value:

OverloadProtectionMBean.NO_ACTION

Valid Values:

OverloadProtectionMBean.NO_ACTION, OverloadProtectionMBean.FORCE_SHUTDOWN, OverloadProtectionMBean.ADMIN_STATE

getFailureAction

String getFailureAction()

Enable automatic forceshutdown of the server on failed state. The server self-health monitoring detects fatal failures and mark the server as failed. The server can be restarted using NodeManager or a HA agent.

Valid Values:

OverloadProtectionMBean.NO_ACTION, OverloadProtectionMBean.FORCE_SHUTDOWN, OverloadProtectionMBean.ADMIN_STATE

setFreeMemoryPercentHighThreshold

void setFreeMemoryPercentHighThreshold(int percent)

Percentage free memory after which the server overload condition is cleared. WorkManagers stop performing overloadActions and start regular execution once the overload condition is cleared.

Default Value:

0

Maximum Value:

99

Minimum Value:

0

getFreeMemoryPercentHighThreshold

int getFreeMemoryPercentHighThreshold()

Percentage free memory after which the server overload condition is cleared. WorkManagers stop performing overloadActions and start regular execution once the overload condition is cleared.

Maximum Value:

99

Minimum Value:

0

setFreeMemoryPercentLowThreshold

void setFreeMemoryPercentLowThreshold(int percent)

Percentage free memory below which the server is considered overloaded. WorkManagers perform overloadAction once the server is marked as overloaded.

Default Value:

0

Maximum Value:

99

Minimum Value:

0

getFreeMemoryPercentLowThreshold

int getFreeMemoryPercentLowThreshold()

Percentage free memory below which the server is considered overloaded. WorkManagers perform overloadAction once the server is marked as overloaded.

Maximum Value:

99

Minimum Value:

0

getServerFailureTrigger

ServerFailureTriggerMBean getServerFailureTrigger()

Configure a trigger that marks the server as failed when the condition is met. A failed server in turn can be configured to shutdown or go into admin state.

createServerFailureTrigger

ServerFailureTriggerMBean createServerFailureTrigger()

Configure a trigger that marks the server as failed when the condition is met. A failed server in turn can be configured to shutdown or go into admin state.

destroyServerFailureTrigger

void destroyServerFailureTrigger()