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When starting the Appian services, the startup stalls at "Waiting for Service Manager to launch," and the following exception appears in the <APPIAN_HOME>/logs/service_manager.log file:
java.lang.IllegalStateException: Expected the service to be TERMINATED, but the service has FAILED...Caused by: com.typesafe.config.ConfigException$WrongType: <APPIAN_HOME>/ear/suite.ear/conf/custom.properties: loadMetric.threshold has type STRING rather than NUMBER
The server.conf.processcommon.MAX_EXEC_ENGINE_LOAD_METRIC property listed in custom.properties is set equal to a value that is being read as a string rather than a number. More information about this setting can be found in the Configuring the Process Engine Servers documentation.
Ensure that the server.conf.processcommon.MAX_EXEC_ENGINE_LOAD_METRIC property listed in custom.properties is set equal to an integer value.
This article applies to Appian 17.3 and later.
Last Reviewed: April 2018
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