1 MBeans in a JPPF driver

1.1 JobDependencyManagerMBean

• object name: org.jppf:name=jobDependencyManager,type=driver
• interface name: JobDependencyManagerMBean
• description: management interface for the server-side job dependency graphs

1.1.1 Attributes

Graph: the graph of job dependencies

• type: JobDependencyGraph
• readable

QueuedNodes: the nodes in the job dependency graph, whose corresponding job has arrived in the job queue

• type: Collection<JobDependencyNode>
• readable

NodeIds: the ids of all the nodes currently in the graph

• type: Set<String>
• readable

GraphSize: the size - the number of nodes or vertices that represent jobs - of the job dependency grpah

• type: int
• readable

AllNodes: all the nodes currently in the job dependency graph

• type: Collection<JobDependencyNode>
• readable

1.1.2 Operations

getNode: get the node with the specified dependency id

getQueuedNodes: get the nodes in the job dependency graph, whose corresponding job has arrived in the job queue, filtered by the specified job selector

1.2 NodeForwardingMBean

• object name: org.jppf:name=nodeForwardingEx,type=driver
• interface name: NodeForwardingMBean
• description: interface for forwarding node management requests and monitoring notfications through a driver

1.2.1 Notifications

• description: notifications emitted by this MBean wrap actual notifications received from the nodes, then are forwarded to the JMX notification listeners whose node selector matches the emitting nodes
• type: JPPFNodeForwardingNotification

1.2.2 Operations

shutdown: shutdown the selected nodes, specifying whther to wait until they are no longer executing jobs

shutdown: shutdown the selected nodes

gc: invoke System.gc(} on the selected nodes

state: get the latest state information from the selected nodes

restart: restart the selected nodes, specifying whther to wait until they are no longer executing jobs

restart: restart the selected nodes

systemInformation: get the system information for the selected nodes

cancelJob: cancel the job with the specified uuid in the selected nodes

threadDump: get a thread dump for the selected nodes

heapDump: trigger a heap dump on the selected nodes

healthSnapshot: get a JVM health snapshot for the selected nodes

forwardInvoke: invoke a method on the specified MBean of the selected nodes

forwardInvoke: invoke an MBean method with no parameter on the selected nodes

resetTaskCounter: reset the executed tasks count on the selected nodes to zero

setTaskCounter: set the executed tasks count on the selected nodes to a specified value

provisionSlaveNodes: make a slave node provisioning request to the selected nodes, specifying configuration overrides

provisionSlaveNodes: make a slave node provisioning request to the selected nodes

provisionSlaveNodes: make a slave node provisioning request to the selected nodes, specifying whether to wait for slave nodes to be idle before stopping them

provisionSlaveNodes: make a slave node provisioning request to the selected nodes, specifying configuration overrides

getNbSlaves: get the number of provisioned slave nodes for the selected nodes

getDelegationModel: get the current class loader delegation model for the selected nodes

forwardGetAttribute: get the value of an attribute of the specified MBean for each selected node

forwardSetAttribute: set the value of an attribute of the specified MBean on the selected nodes

updateThreadPoolSize: set the number of processing threads on the selected nodes

updateThreadsPriority: set the priority of the processing threads on the selected nodes

updateConfiguration: update the configuration properties of the selected nodes

updateConfiguration: update the configuration properties of the selected nodes

setDelegationModel: set the class loader delegation model onr the selected nodes

1.3 DiagnosticsMBean

• object name: org.jppf:name=diagnostics,type=driver
• interface name: DiagnosticsMBean
• description: management and monitoring of the JVM health

1.3.1 Attributes

MonitoringDataProperties: The list of monitoring data properties available in the snapshots

• type: List<JPPFProperty<?>>
• readable

1.3.2 Operations

gc: perform a full garbage collection by calling System.gc()

threadDump: get a full thread dump, including detection of deadlocks

cpuLoad: get an approximation of the current CPU load

heapDump: trigger a heap dump of the JVM

threadNames: get the names of all live threads in the current JVM

healthSnapshot: get a summarized snapshot of the JVM health

hasDeadlock: determine whether a deadlock is detected in the JVM

memoryInformation: get the current state of the heap and non-heap memory for the JVM

healthSnapshotAsString: get a a string representation of a JVM health snapshot. The returned string contains a set of key / value pairs separated by new lines

1.4 JPPFDriverAdminMBean

• object name: org.jppf:name=admin,type=driver
• interface name: JPPFDriverAdminMBean
• description: administration of the JPPF server

1.4.1 Attributes

Broadcasting: whether the driver's connection information is broadcast via UDP multicast

• type: boolean
• readable / writable

1.4.2 Operations

statistics: get the server statistics

nbNodes: get the number of selected nodes attached to the driver

nbNodes: get the number of nodes attached to the driver

nodesInformation: get the JMX connection information for the selected nodes attached to the server, possibly including other peer drivers

nodesInformation: get the JMX connection information for the selected nodes attached to the server

nodesInformation: get the JMX connection information for all the nodes attached to the server

restartShutdown: perform a shutdown, possibly followed by a restart, of the server, with a specified delay before each

nbIdleNodes: get the number of selected attached nodes currently idle

nbIdleNodes: get the number of attached nodes currently idle

nbIdleNodes: get the number of selected attached nodes currently idle, possibly including other peer drivers

resetStatistics: reste the server statistics

getActiveState: get the activate state of the selected nodes

setActiveState: set the active state of the selected nodes

changeLoadBalancerSettings: change the load balancer settings

loadBalancerInformation: get the load balancer settings

idleNodesInformation: get the JMX connection information for all the selected idle nodes attached to the server

idleNodesInformation: get the JMX connection information for all the idle nodes attached to the server

toggleActiveState: toggle the activate state of the selected nodes

systemInformation: get detailed information on the system where the JPPF server or node is runnning: environement variables, JVM system properties, JPPF configuration, runtime information, storage details, network interfaces, statistics

1.5 DriverJobManagementMBean

• object name: org.jppf:name=jobManagement,type=driver
• interface name: DriverJobManagementMBean
• description: the server-side job management interface

1.5.1 Notifications

• description: notification on the status of a job
• type: JobNotification

1.5.2 Attributes

AllJobUuids: the set of uuids for all the jobs currently queued or executing

• type: String[]
• readable

1.5.3 Operations

updatePriority: update the priority of the job with the specified uuid

updatePriority: update the priority of the selected jobs

cancelJob: cancel the job with the specified uuid

resumeJob: resume the job with the specified uuid

suspendJob: suspend the job with the specified uuid

updateMaxNodes: update the maximum number of nodes the selected jobs can run on

updateMaxNodes: update the maximum number of nodes the job with the specified uuid can run on

suspendJobs: suspend the selected jobs

cancelJobs: cancel the selected jobs

resumeJobs: resume the selected jobs

updateJobs: update the SLA and/or metadata of the selected jobs

getJobInformation: get the job information for the selected jobs

getJobInformation: get an object describing the job with the specified uuid

getNodeInformation: get, for the selected jobs, a mapping of job uuid to an object describing the nodes to which the whole or part of each job was dispatched

getNodeInformation: get a list of objects describing the nodes to which the whole or part of a job was dispatched

1.6 LoadBalancerPersistenceManagerMBean

• object name: org.jppf:name=loadBalancerPersistenceManager,type=driver
• interface name: LoadBalancerPersistenceManagerMBean
• description: interface for the remote management of a server-side load-balancing persistence store

1.6.1 Attributes

UncompletedOperations: the number of persistence operations, including load, store, delete and list, that have started but not yet completed

• type: int
• readable

PersistenceEnabled: wether the load-balancer persistence is enabled

• type: boolean
• readable

1.6.2 Operations

delete: delete the specified algorithm state from the specified channel

listAllChannelsWithAlgorithm: list all the channels that have an entry in the persistence store for the specified algorithm

listAllChannels: list all the channels that have an entry in the persistence store

listAlgorithms: list all the algorithms for which the specified channel has an entry in the persistence store

hasAlgorithm: determine whether the specified channel has an entry for the specified algorithm in the persistence store

deleteAll: delete all entries in the persistece store

deleteChannel: delete all entries for the specified channel

deleteAlgorithm: delete the specified algorithm state from all the channels that have it

1.7 JPPFNodeConnectionNotifierMBean

• object name: org.jppf:name=nodeConnectionNotifier,type=driver
• interface name: JPPFNodeConnectionNotifierMBean
• description: monitoring of nodes connecting to, or disconnecting from, a JPPF driver

1.7.1 Notifications

• description: notifications of a node connection or disconnection. Notification.getType() returns either 'CONNECTED' or 'DISCONNECTED'
• type: Notification
• user data type: JPPFManagementInfo

2 MBeans in a JPPF node

2.1 DiagnosticsMBean

• object name: org.jppf:name=diagnostics,type=node
• interface name: DiagnosticsMBean
• description: management and monitoring of the JVM health

2.1.1 Attributes

MonitoringDataProperties: The list of monitoring data properties available in the snapshots

• type: List<JPPFProperty<?>>
• readable

2.1.2 Operations

gc: perform a full garbage collection by calling System.gc()

threadNames: get the names of all live threads in the current JVM

threadDump: get a full thread dump, including detection of deadlocks

hasDeadlock: determine whether a deadlock is detected in the JVM

healthSnapshot: get a summarized snapshot of the JVM health

heapDump: trigger a heap dump of the JVM

cpuLoad: get an approximation of the current CPU load

healthSnapshotAsString: get a a string representation of a JVM health snapshot. The returned string contains a set of key / value pairs separated by new lines

memoryInformation: get the current state of the heap and non-heap memory for the JVM

2.2 JPPFNodeMaintenanceMBean

• object name: org.jppf:name=node.maintenance,type=node
• interface name: JPPFNodeMaintenanceMBean
• description: maintenance operations on the nodes

2.2.1 Operations

requestResourceCacheReset: request a reset of the resource caches of all the JPPF class loaders maintained by the node

2.3 NodeConfigNotifierMBean

• object name: org.jppf:name=config.notifier,type=node
• interface name: NodeConfigNotifierMBean
• description: interface listneing for specific configuration changes in a node

2.3.1 Notifications

• description: notifies of changes to the number of processing threads of a node
• type: Notification
• user data: the configuration properties that changed
• user data type: TypedProperties

2.4 JPPFNodeAdminMBean

• object name: org.jppf:name=admin,type=node
• interface name: JPPFNodeAdminMBean
• description: management and monitoring of a JPPF node

2.4.1 Attributes

DelegationModel: the current class loader delegation model for the node

• type: DelegationModel
• readable / writable

TaskCounter: reset the node's executed tasks counter to the specified value

• type: Integer
• writable

2.4.2 Operations

shutdown: shutdown the node, specifying whether to wait for executing tasks to complete

shutdown: shutdown the node unconditionally

state: get the latest state information from the node

updateThreadsPriority: update the priority of all processing threads

restart: restart the node unconditionally

restart: restart the node, specifying whether to wait for executing tasks to complete

cancelJob: ancel the job with the specified uuid

updateThreadPoolSize: set the size of the node's thread pool

updateConfiguration: update the configuration properties of the node

updateConfiguration: update the configuration properties of the node

cancelPendingAction: cancel a previous deferred shutdown or restart request, if any

resetTaskCounter: reset the node's executed tasks counter to zero

pendingAction: determine wether a deffered shutdwon or restartd was requested and not yet performed for the node

systemInformation: get detailed information on the system where the JPPF server or node is runnning: environement variables, JVM system properties, JPPF configuration, runtime information, storage details, network interfaces, statistics

2.5 JPPFNodeTaskMonitorMBean

• object name: org.jppf:name=task.monitor,type=node
• interface name: JPPFNodeTaskMonitorMBean
• description: monitoring of the tasks processing in a node

2.5.1 Notifications

• description: notifications sent after or during the execution of each task
• type: TaskExecutionNotification
• user data: any user-defined data that is sent along with the notification
• user data type: any type

2.5.2 Attributes

TotalTasksSucessfull: the total number of tasks that executed successfully

• type: Integer
• readable

TotalTaskCpuTime: the total cpu time used by the tasks in milliseconds

• type: Long
• readable

TotalTasksExecuted: the total number of tasks executed by the node

• type: Integer
• readable

TotalTasksInError: the total number of tasks that ended in error

• type: Integer
• readable

TotalTaskElapsedTime: the total elapsed time used by the tasks in milliseconds

• type: Long
• readable

2.5.3 Operations

reset: reset the statistics maintained by this MBean

2.6 JPPFNodeProvisioningMBean

• object name: org.jppf:name=provisioning,type=node
• interface name: JPPFNodeProvisioningMBean
• description: interface for provisioning, managing and monitoring slave nodes

2.6.1 Notifications

• description: notification that a slave node has started or stopped
• type: Notification
• user data type: JPPFProvisioningInfo

2.6.2 Attributes

NbSlaves: the number of slave nodes started by this MBean

• type: int
• readable

2.6.3 Operations

provisionSlaveNodes: provision the specified number of slave nodes, starting new ones or stopping existing ones as needed

provisionSlaveNodes: provision the specified number of slave nodes, starting new ones or stopping existing ones as needed

provisionSlaveNodes: provision the specified number of slave nodes, starting new ones or stopping existing ones as needed

provisionSlaveNodes: provision the specified number of slave nodes, starting new ones or stopping existing ones as needed