27 lines
1.1 KiB
Plaintext
27 lines
1.1 KiB
Plaintext
[float]
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[[breaking_70_cluster_changes]]
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=== Cluster changes
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==== `:` is no longer allowed in cluster name
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Due to cross-cluster search using `:` to separate a cluster and index name,
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cluster names may no longer contain `:`.
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==== New default for `wait_for_active_shards` parameter of the open index command
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The default value for the `wait_for_active_shards` parameter of the open index API
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is changed from 0 to 1, which means that the command will now by default wait for all
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primary shards of the opened index to be allocated.
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==== Shard preferences `_primary`, `_primary_first`, `_replica`, and `_replica_first` are removed
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These shard preferences are removed in favour of the `_prefer_nodes` and `_only_nodes` preferences.
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==== Cluster-wide shard soft limit
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Clusters now have soft limits on the total number of open shards in the cluster
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based on the number of nodes and the `cluster.max_shards_per_node` cluster
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setting, to prevent accidental operations that would destabilize the cluster.
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More information can be found in the <<misc-cluster,documentation for that setting>>. |