When looking at the Task per Process Model report, the following error appears:
The application server log throws the following error:
2016-12-15 19:20:53,204 [ajp-/0.0.0.0:8009-4] ERROR com.appiancorp.process.analytics2.service.ProcessAnalyticsServiceFacade - com.appiancorp.kougar.driver.exceptions.Signal: index2016-12-15 19:20:53,204 [ajp-/0.0.0.0:8009-4] ERROR com.appiancorp.process.analytics2.display.ProcessAnalyticsReportData - com.appiancorp.kougar.driver.exceptions.Signal: indexjava.lang.RuntimeException: com.appiancorp.kougar.driver.exceptions.Signal: index
Potential causes of this issue are:
To fix this issue, first verify if a constant exists with the same name as a task metric. To do so, follow these steps:
If a constant with a similar name exists, remove it from the system.
After making sure that no constants exist with a same name as one in the list above, reset the analytics engines. Please refer to KB-1157 How to reset the analytics engines for on-premise installations of Appian for more details.
This article applies to all versions of Appian.
Last Reviewed: April 2018
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