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Add migration note on the number of shards 

This commit adds a migration note regarding the default number of shards
changing from five to one.

Relates #30539
This commit is contained in:
Jason Tedor 2018-12-06 19:15:45 -05:00
parent a7edf1ed1f
commit e8fe624570
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docs/reference/migration/migrate_7_0/indices.asciidoc
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@ -2,6 +2,11 @@
[[breaking_70_indices_changes]]
=== Indices changes
[float]
==== Index creation no longer defaults to five shards
Previous versions of Elasticsearch defaulted to creating five shards per index.
Starting with 7.0.0, the default is now one index per shard.
[float]
==== `:` is no longer allowed in index name