The following types of failures satisfy the FAILURE condition:The following types of failures satisfy the FAILURE condition:Expiration of a child step’s Timeout limitAn exception thrown by a Java serviceA document query that returns an unpermitted null valueIf you specify multiple children under a REPEAT step, the failure of any one of the children will cause the entire set of children to be re-executed.The REPEAT step immediately exits a set of children at the point of failure (that is, if the second child in a set of three fails, the third child is not executed).When Repeat on is set to FAILURE, the failure of a child within a REPEAT step does not cause the REPEAT step itself to fail unless the Count limit is also reached.The Timeout property for the REPEAT step specifies the amount of time in which the entire REPEAT step, including all of its possible iterations, must complete. When you use REPEAT to retry on failure, you may want to leave the Timeout value at 0 (no limit) or set it to a very high value. You can also set the property to the value of a pipeline variable by typing the name of the variable between % symbols. The variable you specify must be a String.As a developer, you must be thoroughly familiar with the processes you include within a REPEAT step. Make certain that the child steps you specify can safely be repeated in the event that a failure occurs. You don’t want to use REPEAT if there is the possibility that a single action, such as accepting an order or crediting an account balance, could be applied twice.Click the 
button next to 
on the flow service editor toolbar and click 
.Click 
by the side of the flow service editor to open the Palette view. Click and drag it to the flow service editor.For this property... | Specify... | ||
Comments | An optional descriptive comment for this step. | ||
Scope | The name of a document (IData object) in the pipeline to which you want to restrict this step. If you want this step to have access to the entire pipeline, leave this property blank. | ||
Timeout | Optional. Specifies the maximum number of seconds that this step should run. If this time elapses before the step completes, Integration Server issues a FlowTimeoutException and execution continues with the next step in the service. If you want to use the value of a pipeline variable for this property, type the variable name between % symbols. For example, %expiration%. The variable you specify must be a String. If you do not need to specify a time-out period, leave Timeout blank. For more information about how Integration Server handles flow step timeouts, refer to the description of the watt.server.threadKill.timeout.enabled configuration parameter in webMethods Integration Server Administrator’s Guide. | ||
Label | An optional name for this specific REPEAT step, or a null, unmatched, or empty string ($null, $default, blank).
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Count | The maximum number of times you want the children to be re-executed. If you want to use the value of a pipeline variable for this property, type the variable name between % symbols (for example, %servicecount%). The variable you specify must be a String. If you want the children re-executed until they are all successful (that is, no maximum limit), set this value to –1. | ||
Repeat interval | The length of time (in seconds) that you want the server to wait between iterations of the children. If you want to use the value of a pipeline variable for this property, type the variable name between % symbols (for example, %waittime%). The variable you specify must be a String. | ||
Repeat on | FAILURE |
on the flow service editor toolbar. (Make it a child of the REPEAT step.)