Decommission logs too frequent when waiting migration to finish

21/08/18 08:14:31 INFO CoarseGrainedExecutorBackend: Checking to see if we can shutdown.
21/08/18 08:14:31 INFO CoarseGrainedExecutorBackend: No running tasks, checking migrations
21/08/18 08:14:31 INFO CoarseGrainedExecutorBackend: All blocks not yet migrated.
21/08/18 08:14:32 INFO CoarseGrainedExecutorBackend: Checking to see if we can shutdown.
21/08/18 08:14:32 INFO CoarseGrainedExecutorBackend: No running tasks, checking migrations
21/08/18 08:14:32 INFO CoarseGrainedExecutorBackend: All blocks not yet migrated.
21/08/18 08:14:33 INFO CoarseGrainedExecutorBackend: Checking to see if we can shutdown.
21/08/18 08:14:33 INFO CoarseGrainedExecutorBackend: No running tasks, checking migrations
21/08/18 08:14:33 INFO CoarseGrainedExecutorBackend: All blocks not yet migrated.
21/08/18 08:14:34 INFO CoarseGrainedExecutorBackend: Checking to see if we can shutdown.
21/08/18 08:14:34 INFO CoarseGrainedExecutorBackend: No running tasks, checking migrations
21/08/18 08:14:34 INFO CoarseGrainedExecutorBackend: All blocks not yet migrated.
21/08/18 08:14:35 INFO CoarseGrainedExecutorBackend: Checking to see if we can shutdown.
21/08/18 08:14:35 INFO CoarseGrainedExecutorBackend: No running tasks, checking migrations
21/08/18 08:14:35 INFO CoarseGrainedExecutorBackend: All blocks not yet migrated.
21/08/18 08:14:36 INFO CoarseGrainedExecutorBackend: Checking to see if we can shutdown.
21/08/18 08:14:36 INFO CoarseGrainedExecutorBackend: No running tasks, checking migrations
21/08/18 08:14:36 INFO CoarseGrainedExecutorBackend: All blocks not yet migrated.
21/08/18 08:14:37 INFO CoarseGrainedExecutorBackend: Checking to see if we can shutdown.
21/08/18 08:14:37 INFO CoarseGrainedExecutorBackend: No running tasks, checking migrations
21/08/18 08:14:37 INFO CoarseGrainedExecutorBackend: All blocks not yet migrated.
21/08/18 08:14:38 INFO CoarseGrainedExecutorBackend: Checking to see if we can shutdown.
21/08/18 08:14:38 INFO CoarseGrainedExecutorBackend: No running tasks, checking migrations
21/08/18 08:14:38 INFO CoarseGrainedExecutorBackend: All blocks not yet migrated.
21/08/18 08:14:39 INFO CoarseGrainedExecutorBackend: Checking to see if we can shutdown.
21/08/18 08:14:39 INFO CoarseGrainedExecutorBackend: No running tasks, checking migrations
21/08/18 08:14:39 INFO CoarseGrainedExecutorBackend: All blocks not yet migrated.
21/08/18 08:14:40 INFO CoarseGrainedExecutorBackend: Checking to see if we can shutdown.
21/08/18 08:14:40 INFO CoarseGrainedExecutorBackend: No running tasks, checking migrations
21/08/18 08:14:40 INFO CoarseGrainedExecutorBackend: All blocks not yet migrated.
21/08/18 08:14:41 INFO CoarseGrainedExecutorBackend: Checking to see if we can shutdown.
21/08/18 08:14:41 INFO CoarseGrainedExecutorBackend: No running tasks, checking migrations
21/08/18 08:14:41 INFO CoarseGrainedExecutorBackend: All blocks not yet migrated.
21/08/18 08:14:42 INFO CoarseGrainedExecutorBackend: Checking to see if we can shutdown.
21/08/18 08:14:42 INFO CoarseGrainedExecutorBackend: No running tasks, checking migrations
21/08/18 08:14:42 INFO CoarseGrainedExecutorBackend: All blocks not yet migrated.
21/08/18 08:14:43 INFO CoarseGrainedExecutorBackend: Checking to see if we can shutdown.
21/08/18 08:14:43 INFO CoarseGrainedExecutorBackend: No running tasks, checking migrations
21/08/18 08:14:43 INFO CoarseGrainedExecutorBackend: All blocks not yet migrated.
21/08/18 08:14:44 INFO CoarseGrainedExecutorBackend: Checking to see if we can shutdown.
21/08/18 08:14:44 INFO CoarseGrainedExecutorBackend: No running tasks, checking migrations
21/08/18 08:14:44 INFO CoarseGrainedExecutorBackend: All blocks not yet migrated.
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