Appium driver object is getting closed when test suite executes more then 30 min

Appium driver object is getting closed when test suite executes more then 30 min.
There are around 40 testcases that can run on iOS device. To completely execute all the cases, It requires around 2 hours. After executing test for and hour, driver object is getting closed.
Did any one observed these kind of issues ?

Hi,

  1. Did you get the org.openqa.selenium.remote.SessionNotFoundException: A session is either terminated or not started ?
  2. Have you noticed if i took around 30 minutes to invoke an action? (tap, create screen)

Thanks,
Eitan.