Simon Willnauer ea35abca28
Protect shard splitting from illegal target shards (#27468)
While we have an assertion that checks if the number of routing shards is a multiple
of the number of shards we need a real hard exception that checks this way earlier.
This change adds a check and test that is executed before we create the index.

Relates to #26931
2017-11-21 12:09:45 +01:00
..