Install Flink on all masters
Install Flink on all masters

Only run a detached session on the primary master. This is necessary
because the default session is configured to consume all cluster
resources. When multiple masters attempt to create sessions, they get
stuck allocating YARN containers and the init action times out.

pmkc/dataproc-initialization-actions,pmkc/dataproc-initialization-actions,GoogleCloudDataproc/initialization-actions,GoogleCloudDataproc/initialization-actions,dennishuo/dataproc-initialization-actions,dennishuo/dataproc-initialization-actions,lukeFalsina/dataproc-initialization-actions,lukeFalsina/dataproc-initialization-actions,GoogleCloudDataproc/initialization-actions