elasticsearch/elasticsearch — pull request #4598 by s1monw (2014-01-03 09:02:30+00:00)
Title: Check if node is still present when collecting attribute shard routings

The node we need to lookup for attribute colelction might not be part
of the `DiscoveryNodes` anymore due to node failure or shutdown. This
commit adds a check and removes the shard from the iteration.

Closes #4589