IBM Tivoli Composite Application Manager for Application Diagnostics, Version 7.1.0.1
DCS Stack attributes
The DCS Stack attributes reports information about the statistical data within the entire WAS domain, including multiple nodes and servers.
Examples of DCS Stack attributes include; the incoming and outgoing message size, the number of incoming and outgoing messages, congestion events, and message buffer reallocations. The attributes within this group are used to build the DCS Stacks 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 select it again later. Each time you select the workspace, these attributes are updated with the latest data.
For information about WebSphere PMI metrics, see WebSphere PMI Attribute Mapping.
The average size (in bytes) of the messages that were received by the DCS stack. Format is positive integer.
The average size (in bytes) of the messages that were sent through the DCS stack. Format is positive integer.
The amount of time it actually takes to coalesce a view. Format is decimal (formatted to 3 decimal places).
The name of the Topic Space. The value format is an alphanumeric string, with a maximum of 256 characters.
The size of the group the local member belongs to. Format is positive integer.
High Severity
Congestion Events
The number of times that a high severity congestion event for outgoing messages was raised. Format is positive integer.
The number of messages received by the DCS stack. Format is decimal (formatted to 3 decimal places).
The instrumentation level for the DCS stack. 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 sampling interval. Format is positive integer.
The time to do a merge view change. The DCS stack is blocked during this time. Format is decimal (formatted to 3 decimal places).
The maximal size (in bytes) of the messages that were received by the DCS stack. Format is positive integer.
The maximal size (in bytes) of the messages that were sent through the DCS stack. Format is positive integer.
The number of message buffer reallocations due to inadequate buffer size. If this number is larger than 20 percent of the number of sent messages, contact IBM Support. Format is positive integer.
The minimal size (in bytes) of the messages that were received by the DCS stack. Format is positive integer.
The minimal size (in bytes) of the messages that were sent through the DCS stack. 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 number of messages sent through the DCS stack. Format is positive integer.
The time to do a split view change. The DCS stack is blocked during this time. Format is decimal (formatted to 3 decimal places).
The row number. Format is positive integer.
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.
The number of messages sent through the DCS stack. Format is positive integer.
Whether this row is a summary row of statistical totals for all rows. Valid values are No and yes.
The number of times that the local member suspected other members. Format is positive integer.
Synchronization Completion Time
The amount of time needed to guarantee that all view members are synchronized. Format is decimal (formatted to 3 decimal places).
The number of times that the synchronization procedure timed out. Format is positive integer.
The number of times that this member underwent view changes. Format is positive integer.
Additional information:
Parent topic:
Attributes for ITCAM Agent for WebSphere Applications