# Striim 3.10.1 documentation

#### Changing the application start timeout

By default, when you start an application, Striim will wait five minutes for all components and flows to start. If after that time not all components and flows have started, start will fail with an error such as "failed to verify flow start."

To change this timeout, edit startUp.properties (and, if the application has a source running in a Forwarding Agent, agent.properties) and set the value of striim.cluster.maxWaitTimeForAppVerifyInDeploying to the number of seconds before timeout. Then restart Striim and any relevant Forwarding Agent.