IBM Tivoli Composite Application Manager for Application Diagnostics, Version 7.1.0.1
Enterprise Java Beans attributes
The Enterprise Java Beans attributes provide performance information about each EJB deployed to the application server.
These attributes provide information about bean activity and bean object pool activity. Use the Enterprise Java Beans attributes in situations to monitor performance and problems for an individual bean. The attributes within this group are used to build the Enterprise Java Beans workspace.
- The attributes within this attribute group contain zeros for performance data if your site set configuration value Resource Data Collection Method to On Demand (for on-demand sampling) and you have not yet run applications that generate performance data. To report performance data in these attributes after installing and configuring the data collector, use the WebSphere administrative console to set the appropriate PMI instrumentation level.
- The Tivoli Enterprise Monitoring Agent is set by default to provide on-demand sampling; thus the attributes within this attribute group initially contain zeros until you select the workspace and then reselect it later. Each time you reselect the workspace, these attributes are updated with the latest data.
For information about WebSphere PMI metrics, see WebSphere PMI Attribute Mapping.
The number of times a bean instance was activated during the interval. Format is positive integer.
The bean instance activations (per second) during the interval. Format is decimal (formatted to 3 decimal places).
The average number of invocations being processed concurrently for all the methods during the interval. Format is decimal (formatted to 3 decimal places). This value is an average of several values collected over an interval. The interval can be either between this time and the previous time you activated this workspace, or fixed (normally 60 seconds), depending on the configuration of the monitoring agent.
The name of the Web Application or EJB Module. Alphanumeric string. Maximum4 characters.
Average Concurrently Live Beans
The average number of live bean objects during the interval, which include objects that were instantiated but not yet destroyed. This is a load value providing data on the average level as a function of time. It is the average number of bean objects that exist in the run time, whether active or pooled. This is a measure of how many resources the home interface is consuming. Format is decimal (formatted to 3 decimal places). This value is an average of several values collected over an interval. The interval can be either between this time and the previous time you activated this workspace, or fixed (normally 60 seconds), depending on the configuration of the monitoring agent.
Average Concurrently Ready Beans
The average number of active beans during the interval. This is a load value providing data on the average level as a function of time. It is the average number of bean instances of the home that are in the ready state. This is a measure of how busy the server is. Format is decimal (formatted to 3 decimal places). This value is an average of several values collected over an interval. The interval can be either between this time and the previous time you activated this workspace, or fixed (normally 60 seconds), depending on the configuration of the monitoring agent.
The average number of objects that were discarded each time the bean object pool was emptied of idle objects during the interval. Format is decimal (formatted to 3 decimal places).
The average number of objects in the bean object pool during the interval. Format is decimal (formatted to 3 decimal places). This value is an average of several values collected over an interval. The interval can be either between this time and the previous time you activated this workspace, or fixed (normally 60 seconds), depending on the configuration of the monitoring agent.
The name of the Enterprise JavaBean (EJB). This name prefixes the application name
and the EJB jar name. Alphanumeric string.
The type of bean. Valid values are Stateless, Stateful, Entity, and Message Driven.
The average method response time to create bean objects during the interval. Format is decimal (formatted to 3 decimal places).
The number of create calls during the interval. Format is positive integer.
The create calls (per second) during the interval. Format is decimal (formatted to 3 decimal places).
The average number of times bean objects were destroyed by garbage collection during the interval. Format is positive integer.
The rate of destructions (per second) for bean objects by the garbage collector during the interval. Format is decimal (formatted to 3 decimal places).
The number of times the returned object to the bean object pool was discarded because the bean object pool was already full during the interval. Format is positive integer.
The bean object pool discards (per second) during the interval. Format is decimal (formatted to 3 decimal places).
The number of times the bean object pool was found idle and an attempt was made to remove idle objects during the interval. Format is positive integer.
The drain rate (per second) for the bean object pool during the interval. Format is decimal (formatted to 3 decimal places).
The number of times bean data was loaded during the interval. Format is positive integer.
Entity Bean Load Rate (per sec)
The bean data loads (per second) during the interval. Format is decimal (formatted to 3 decimal places).
The number of times bean data was written to the database during the interval. Format is positive integer.
Entity Bean Store Rate (per sec)
The rate at which data was written (per second) to the database for the interval since the previous sample. Format is decimal (formatted to 3 decimal places).
The number of times a retrieval call found an object available in the bean object pool during the interval. Format is positive integer.
The bean object pool retrieve availability (per second) for the interval since the previous sample. Format is decimal (formatted to 3 decimal places).
The number of calls that retrieved an object from the bean object pool during the interval. Format is positive integer.
The number of times bean objects were retrieved (per second) during the interval. Format is decimal (formatted to 3 decimal places).
The number of times bean objects were created during the interval. Format is positive integer.
The bean objects created (per second) for the interval since the previous sample. Format is decimal (formatted to 3 decimal places).
The instrumentation level of this enterprise bean. For WebSphere 6 or higher, the valid values are None, Basic, Extended, All, Custom. Blank if no instrumentation level is set.
The length (in seconds) of the interval. Format is positive integer.
Method Average Response Time (ms)
The average response time (in milliseconds) for all methods of the remote interface for this bean during the interval. Format is decimal (formatted to 3 decimal places).
Method Invocation Rate (per sec)
The invocations (per second) for all methods during the sampling interval. This is a load value that provides data on the average level as a function of time. This is a measure of how busy the server is. Format is decimal (formatted to 3 decimal places).
The total number of remote interface method invocations during the interval. Format is positive integer.
The name of the system on which the server is running. The value format is an alphanumeric string, with a maximum of 256 characters.
The name of the server subnode. Alphanumeric string. Maximum 128 characters.
The average number of bean objects passivated during the sampling interval. Minimum instrumentation level required to collect these data: Extended. Format is decimal (formatted to 3 decimal places). This value is an average of several values collected over an interval. The interval can be either between this time and the previous time you activated this workspace, or fixed (normally 60 seconds), depending on the configuration of the monitoring agent.
The number of passivations (per second) during the interval since the previous sample. Format is decimal (formatted to 3 decimal places).
The remove calls (per second) for the interval since the previous sample. Format is decimal (formatted to 3 decimal places).
The average method response time to remove bean objects during the interval. Format is decimal (formatted to 3 decimal places).
The number of remove calls during the interval. Format is positive integer.
The number of calls that returned an object to the bean object pool during the interval. Format is positive integer.
The bean object pool returns (per second) for the interval since the previous sample. Format is decimal (formatted to 3 decimal places).
The date and time the Tivoli Enterprise Management Agent collected the data. The valid format is a 12-character timestamp. For the STR and SCAN functions, the format is MM/DD/YY HH:MM:SS; the following table shows the values contained in this character string:
Format of the 12-character timestamp
Character String Meaning MM Month DD Day YY Year HH Hour MM Minute SS Second
Example: 09/13/06 18:32:03 indicates the data was collected on September 13, 2006, at 18:32:03.
This attribute was designed for logging and reporting data-collection times rather than for creating situations. To specify a time and date for comparison and testing, use attributes from the Universal Time or Local Time groups.
The name of the application server. Alphanumeric string.
Type
Indicates the WebSphere resource category, which is used by the agent to modify the Instrumentation Level for transaction data collection.
Additional information:
Parent topic:
Attributes for ITCAM Agent for WebSphere Applications