MaxThreadsConstraintMBean


Overview  |   Related MBeans  |   Attributes  |   Operations

Overview

This MBean defines the max number of concurrent threads that can execute requests sharing this max constraint.

MaxThreadsConstraint can be used to tell the server that the requests are constrained by an external resource like a database and allocating more threads that the external resource limit is not going to help since the extra threads are just going to wait.

       
Since9.0.0.0
Fully Qualified Interface NameIf you use the getMBeanInfo operation in MBeanTypeServiceMBean, supply the following value as this MBean's fully qualified interface name:
weblogic.management.configuration.MaxThreadsConstraintMBean
Factory Methods No factory methods. Instances of this MBean are created automatically.


Related MBeans

This section describes attributes that provide access to other MBeans.


    Targets

    You must select a target on which an MBean will be deployed from this list of the targets in the current domain on which this item can be deployed. Targets must be either servers or clusters. The deployment will only occur once if deployments overlap.

           
    Privileges Read/Write
    TypeTargetMBean[]
    Relationship type: Reference.


    Attributes

    This section describes the following attributes:


    CachingDisabled

    Private property that disables caching in proxies.

           
    Privileges Read only
    Typeboolean
    Redeploy or Restart required Changes take effect after you redeploy the module or restart the server.

    ConnectionPoolName

    Name of the connection pool whose size is taken as the max constraint.

    This can be the name of a JDBC data source. The max capacity of the data source is used as the constraint.

           
    Privileges Read/Write
    Typejava.lang.String

    Count

    Maximum number of concurrent threads that can execute requests sharing this constraint.

    A count of 0 or -1 is treated as if the constraint is not present. This means that no constraint is enforced for these two values. A count > 0 can be dynamically changed to 0 to indicate that constraint enforcement is no longer needed.

           
    Available Since Release 9.0.0.0
    Privileges Read/Write
    Typeint
    Default Value-1

    DeploymentOrder

    A priority that the server uses to determine when it deploys an item. The priority is relative to other deployable items of the same type.

    For example, the server prioritizes and deploys all EJBs before it prioritizes and deploys startup classes.

    Items with the lowest Deployment Order value are deployed first. There is no guarantee on the order of deployments with equal Deployment Order values. There is no guarantee of ordering across clusters.

           
    Privileges Read/Write
    Typeint
    Default Value1000
    Minimum value0
    Maximum value2147483647

    MBeanInfo

    Returns the MBean info for this MBean.

    Deprecated.

           
    Privileges Read only
    Typejavax.management.MBeanInfo
    Redeploy or Restart required Changes take effect after you redeploy the module or restart the server.

    Name

    The user-specified name of this MBean instance.

    This name is included as one of the key properties in the MBean's javax.management.ObjectName:
    Name=user-specified-name

           
    Privileges Read/Write
    Typejava.lang.String

    Notes

    Optional information that you can include to describe this configuration.

    WebLogic Sever saves this note in the domain's configuration file (config.xml) as XML PCDATA. All left angle brackets (<) are converted to the XML entity &lt;. Carriage returns/line feeds are preserved.

    Note:

    If you create or edit a note from the Administration Console, the Administration Console does not preserve carriage returns/line feeds.

           
    Privileges Read/Write
    Typejava.lang.String

    ObjectName

    Returns the ObjectName under which this MBean is registered in the MBean server.

    Deprecated.

           
    Privileges Read only
    Typeweblogic.management.WebLogicObjectName
    Redeploy or Restart required Changes take effect after you redeploy the module or restart the server.

    Parent

    Return the immediate parent for this MBean

           
    Privileges Read/Write
    Type

    Registered

    Returns false if the MBean represented by this object has been unregistered.

    Deprecated.

           
    Privileges Read only
    Typeboolean
    Redeploy or Restart required Changes take effect after you redeploy the module or restart the server.

    Type

    Returns the type of the MBean.

           
    Privileges Read only
    Typejava.lang.String
    Redeploy or Restart required Changes take effect after you redeploy the module or restart the server.


    Operations

    This section describes the following operations:


    addTarget

    You can add a target to specify additional servers on which the deployment can be deployed. The targets must be either clusters or servers.

       
    Operation Name"addTarget"
    ParametersObject [] {  target }

    where:

    • target is an object of type weblogic.management.configuration.TargetMBean that specifies:

      The feature to be added to the Target attribute

    SignatureString [] { "weblogic.management.configuration.TargetMBean" }
    Returns boolean
    Exceptions
    • javax.management.InvalidAttributeValueException
    • weblogic.management.DistributedManagementException

    freezeCurrentValue

    If the specified attribute has not been set explicitly, and if the attribute has a default value, this operation forces the MBean to persist the default value.

    Unless you use this operation, the default value is not saved and is subject to change if you update to a newer release of WebLogic Server. Invoking this operation isolates this MBean from the effects of such changes.

    Note:

    To insure that you are freezing the default value, invoke the restoreDefaultValue operation before you invoke this.

    This operation has no effect if you invoke it on an attribute that does not provide a default value or on an attribute for which some other value has been set.

    Deprecated. 9.0.0.0

       
    Operation Name"freezeCurrentValue"
    ParametersObject [] {  attributeName }

    where:

    • attributeName is an object of type java.lang.String that specifies:

      attributeName

    SignatureString [] { "java.lang.String" }
    Returns void
    Exceptions
    • javax.management.AttributeNotFoundException
    • javax.management.MBeanException

    isSet

    Returns true if the specified attribute has been set explicitly in this MBean instance.

       
    Operation Name"isSet"
    ParametersObject [] {  propertyName }

    where:

    • propertyName is an object of type java.lang.String that specifies:

      property to check

    SignatureString [] { "java.lang.String" }
    Returns boolean

    removeTarget

    Removes the value of the addTarget attribute.

    For more information, see:

       
    Operation Name"removeTarget"
    ParametersObject [] {  target }

    where:

    • target is an object of type weblogic.management.configuration.TargetMBean that specifies:

      target

    SignatureString [] { "weblogic.management.configuration.TargetMBean" }
    Returns boolean
    Exceptions
    • javax.management.InvalidAttributeValueException
    • weblogic.management.DistributedManagementException

    restoreDefaultValue

    If the specified attribute has a default value, this operation removes any value that has been set explicitly and causes the attribute to use the default value.

    Default values are subject to change if you update to a newer release of WebLogic Server. To prevent the value from changing if you update to a newer release, invoke the freezeCurrentValue operation.

    This operation has no effect if you invoke it on an attribute that does not provide a default value or on an attribute that is already using the default.

    Deprecated. 9.0.0.0

       
    Operation Name"restoreDefaultValue"
    ParametersObject [] {  attributeName }

    where:

    • attributeName is an object of type java.lang.String that specifies:

      attributeName

    SignatureString [] { "java.lang.String" }
    Returns void
    Exceptions
    • javax.management.AttributeNotFoundException

    unSet

    Restore the given property to its default value.

       
    Operation Name"unSet"
    ParametersObject [] {  propertyName }

    where:

    • propertyName is an object of type java.lang.String that specifies:

      property to restore

    SignatureString [] { "java.lang.String" }
    Returns void