Retrieving actual state

To retrieve the actual operational state of a Resource Adaptor Entity, use the following rhino-console command or related MBean operation. For an explanation of the terms "actual state" and "desired state" see bxref:concepts-and-terminology.

Console command: getraentityactualstate

Command

 
getraentityactualstate <entity-name> <-all|-nodes node1,node2,...>
  Description
    Get the actual resource adaptor entity state for the specified nodes. If -all is
    specified, query the state of all current event router cluster members.

Output

The rhino-console client displays the actual operational state of the specified node(s), or every event-router node in the primary component if -all is specified.

Examples

To display the actual state of the Resource Adaptor Entity sipra only node 101:

$ ./rhino-console getraentityactualstate sipra -nodes 101
Getting actual Resource Adaptor Entity state for node(s) [101]
Node 101: Stopped

To display the actual state of the Resource Adaptor Entity sipra on every event-router node:

$ ./rhino-console getraentityactualstate sipra -all
Getting actual Resource Adaptor Entity state for node(s) [101,102]
Node 101: Stopped
Node 102: Running

MBean operation: getActualState

MBean

Resource Management

Rhino extension
Return actual state of a set of nodes
public ResourceAdaptorEntityActualState getActualState(String entityName, int[] nodeIDs)
  throws ManagementException;

Retrieving desired state

To retrieve the desired operational state of a Resource Adaptor Entity, use the following rhino-console command or related MBean operation.

Console command: getraentitydesiredstate

Command

 
getraentitydesiredstate <entity-name> <-default|-all|-nodes node1,node2,...>
  Description
    Get the default or per-node desired resource adaptor entity state. If -all is
    specified, query the state of all current event router nodes as well as all
    nodes with saved per-node state.

Output

The rhino-console client displays the desired state of the specified node(s), or every node with configured state and every event-router node in the primary component if -all is specified.

Examples

To display the desired state of only node 101:

$ ./rhino-console getraentitydesiredstate -nodes 101
Node 101: Stopped

To display the desired state of the Resource Adaptor Entity sipra every event-router node and configured node:

$ ./rhino-console getraentitydesiredstate -all
Node 101: Stopped
Node 102: Running (default)
Node 103: Running

To display the default desired state that unconfigured event router nodes will inherit:

$ ./rhino-console getraentitydesiredstate -default
Getting default Resource state
Default Resource state is: running

MBean operation: getPerNodeDesiredState

MBean

Resource Management

Rhino extension
Return the desired state of a set of nodes
public ResourceAdaptorEntityDesiredState getPerNodeDesiredState(String entityName, int[] nodeIDs)
  throws ManagementException;

MBean operation: getDefaultDesiredState

MBean

Resource Management

Rhino extension
Return the default desired state used by nodes that do not have a configured per-node state
public ResourceAdaptorEntityDesiredState getDefaultDesiredState(String entityName)
  throws ManagementException;

Retrieving SLEE-defined state

To retrieve the operational state of a Resource Adaptor Entity in a form compatible with the JAIN SLEE specification, use the following rhino-console command or related MBean operation.

Console command: getraentitystate

Command

 
getraentitystate <entity-name> [-nodes node1,node2,...]
  Description
    Get the state of a resource adaptor entity (on the specified nodes)

Output

The rhino-console client displays the operational state of the specified node(s), or every event-router node in the primary component if none are specified.

Examples

To display the state of the resource adaptor entity with the name sipra on every event-router node:

$ ./rhino-console getraentitystate sipra
Resource Adaptor Entity is Inactive on node 101
Resource Adaptor Entity is Active on node 102

To display the state of the Resource Adaptor Entity on only node 101:

$ ./rhino-console getraentitystate sipra -nodes 101
Resource Adaptor Entity is Inactive on node 101

MBean operation: getState

MBean

Resource Management

SLEE-defined
Return state of Resource Adaptor Entity on current node
public ResourceAdaptorEntityState getState(String entityName)
    throws NullPointerException,
    UnrecognizedResourceAdaptorEntityException,
    ManagementException;

Rhino’s implementation of the SLEE-defined getState operation returns the SLEE-defined state most closely representative of the actual state of a Resource Adaptor Entity on the node the invoking client is connected to. When using the Rhino client library with a list of hosts this will usually be the node on the first host in the list. When multiple nodes are running on the same host, the oldest node on the host will usually expose the management interface and thus be the target of this query.

Note

Since Rhino 3.0.0 the actual state of components on each node can update asynchronously. This differs from symmetric activation state mode in earlier Rhino versions in that the value returned by getState() is not representative of the state on other cluster nodes. Users of this method who previously configured symmetric activation state mode should switch to checking the state of all nodes using the method getState(int[] nodeIDs) or one of the new getDesiredState(int[] nodeIDs) or getActualState(int[] nodeIDs) depending on the purpose of the state query. A list of event router node IDs can be obtained using RhinoHousekeepingMBean.getEventRouterNodes(). For example, to verify that a Resource Adaptor Entity is configured to be active on all nodes:

RhinoHousekeepingMBean rhinoHousekeeping =  RhinoManagement.getRhinoHousekeepingMBean(client);
ResourceManagementMBean resourceManagement =  RhinoManagement.getResourceManagementMBean(client);
ResourceAdaptorEntityState[] nodeStates = resourceManagement.getDesiredState(entityName, rhinoHousekeeping.getEventRouterNodes());
boolean active = Arrays.stream(nodeStates).filter(s -> s != ResourceAdaptorEntityDesiredState.ACTIVE).count() == 0;

Rhino extension
Return state of Resource Adaptor Entity on specified node(s)
public ResourceAdaptorEntityState[] getState(String entityName, int[] nodeIDs)
    throws NullPointerException, InvalidArgumentException,
    UnrecognizedResourceAdaptorEntityException, ManagementException;

Rhino provides an extension that adds an argument which lets you control the nodes on which to return the state of the Resource Adaptor Entity (by specifying node IDs).
Previous page Next page
Rhino Version 3.2