Henning Andersen 228611843c
Fail start of non-data node if node has data (#37347)
* Fail start of non-data node if node has data

Check that nodes started with node.data=false cannot start if they have
shard data to avoid (old) indexes being resurrected into the cluster in red status.

Issue #27073
2019-01-22 13:27:12 +01:00
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