Workload Management Server attributes
The attributes provide workload management server information.
The Workload Management Server attribute group provides information about the workload management server.
Workload management (WLM) optimizes the distribution of client processing tasks. Incoming work requests are distributed to the application servers, enterprise beans, servlets, and other objects that can most effectively process those requests. Workload management also provides failover when servers are not available, improving application availability. In a WebSphere® Application Server environment, you implement workload management by using clusters, transports, and replication domains.
The attributes within this group are used to build the Workload Management 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 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 select it again later. Each time you select the workspace, these attributes are updated with the latest data.
Concurrent Requests The number of remote IIOP requests being processed by this server. The valid format is a 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.
Incoming Non-WLM Object Request Rate (per sec) The rate (per second) of incoming IIOP requests from an application running on a non-WLM client during the sampling interval. This type of client either does not have the WLM runtime present, or the client's object reference was flagged not to participate in workload management. The valid format is a decimal (formatted to 3 decimal places).
Incoming Non-WLM Object Requests The number of incoming IIOP requests to an application from a client that does not have the WLM runtime present or whose object reference was flagged not to participate in workload management. The valid format is a positive integer.
Incoming Nonaffinity Request Rate (per sec) The rate (per second) of incoming IIOP requests to an application server based on no affinity during the sampling interval. The valid format is a decimal (formatted to 3 decimal places).
Incoming Nonaffinity Requests The number of incoming IIOP requests to an application server based on no affinity. This request was sent to this server based on workload management selection policies that were decided in the client's WLM runtime. The valid format is a positive integer.
Incoming Request Rate (per sec) The rate (per second) of incoming IIOP requests to an application server during the sampling interval. The valid format is a decimal (formatted to 3 decimal places).
Incoming Requests The number of incoming IIOP requests to an application server during the sampling interval. The valid format is a positive integer.
Incoming Strong Affinity Request Rate (per sec) The rate (per second) of incoming IIOP requests to an application server that are based on a strong affinity during the sampling interval. The valid format is a decimal (formatted to 3 decimal places).
Incoming Strong Affinity Requests The number of incoming IIOP requests to an application server that are based on a strong affinity. A strong affinity request is one that must be serviced by this application server because of a dependency that resides on the server. This request could not successfully be serviced by another member of the server cluster. The valid format is a positive integer.
Instrumentation Level The instrumentation level for the WLM server. For WebSphere Version 6 or later, the valid values are None, Basic, Extended, All, Custom. Blank if no instrumentation level is set.
Interval (sec) The length (in seconds) of the sampling interval. The valid format is a positive integer.
Node Name The name of the system on which the server is running. The valid format is an alphanumeric string, with a maximum of 128 characters.
Origin Node The name of the server subnode. The valid format is an alphanumeric string, with a maximum of 128 characters.
Sample Date and Time The date and time the monitoring 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.
| 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.
Server Cluster Update Rate (per sec) The rate (per second) at which this server received new server cluster information during the sampling interval. The valid format is a decimal (formatted to 3 decimal places).
Server Cluster Updates The number of times initial or updated server cluster data are sent to a server member from the deployment manager. This metric determines how often cluster information is being propagated. The valid format is a positive integer.
Server Name The name of the WebSphere Application Server. The valid format is an alphanumeric string, with a maximum of 256 characters.
Server Response Time (ms) The response time (in milliseconds) at which IIOP requests were serviced by an application server, calculated based on the time the request is received versus the time the reply is sent. The valid format is a decimal (formatted to 3 decimal places).
Total Server Response (ms) The total response time (in milliseconds) at which IIOP requests were serviced by an application server. The valid format is a decimal (formatted to 3 decimal places).
Set Instrumentation Level Type Indicates the WebSphere resource category, which is used by the agent to modify the Instrumentation Level for transaction data collection.
WLM Clients Serviced The number of WLM-enabled clients this application server has serviced during the interval. The valid format is a positive integer.
WLM Clients Serviced Rate (per sec) The rate (per second) at which this server has serviced WLM-enabled clients during the sampling interval. The valid format is a decimal (formatted to 3 decimal places).
WLM Server Weight A control for work directed to the application server: if the server's weight value is greater than the weight values assigned to other servers in the cluster, then the server receives a larger share of the cluster's workload. The valid format is a positive integer.