You could see that for stage 1, there are 2563 tasks, but non of them is succeeded! From the Executor page, these executors is stale for several hours:
The only exception in the Driver is that there are 2 yarn containers failed when launching because these container cannot connect to driver! Below is one of the log of the failed container:
In the driver, the exception is:
Anyone has any clues? It is very weired;