GroupCoordinatorNotAvailable Error Ignored or swallowed?

[srinivasankrish]

I see that in the below line the error is ignored and we proceed forward for then block.

kafka/lib/group_consumer.js

Line 89 in 2178dea

throw new Error('Failed to join the group: GroupCoordinatorNotAvailable');

I get both of these messages one after another. I had expected it not to reach the then block.

MessageHub Consumer cfc64c97-f726-4f50-ab83-33d65a1e9934 logged: Full rejoin attempt failed: Error: Failed to join the group: GroupCoordinatorNotAvailable\nError: Failed to join the group: GroupCoordinatorNotAvailable\n    at _tryJoinGroup 

"msg":"MessageHub Consumer cfc64c97-f726-4f50-ab83-33d65a1e9934 logged: Joined group placementGroup generationId 1 as cfc64c97-f726-4f50-ab83-33d65a1e9934-28aa8765-a304-4daa-8933-8695504580ce"