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OpenSearch/docs/reference/migration/migrate_7_0/cluster.asciidoc

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[DOCS] Synchronize location of Breaking Changes (#33588)
2018-09-27 11:41:38 -04:00
[float]
Disallow : in cluster and index/alias names (#26247) We use `:` for cross-cluster search (eg `cluster:index`), therefore, we should not allow the ambiguity when allowing cluster or index names. Relates to #23892
2017-08-17 16:57:26 -04:00
[[breaking_70_cluster_changes]]
=== Cluster changes
[DOCS] Synchronize location of Breaking Changes (#33588)
2018-09-27 11:41:38 -04:00
[float]
Disallow : in cluster and index/alias names (#26247) We use `:` for cross-cluster search (eg `cluster:index`), therefore, we should not allow the ambiguity when allowing cluster or index names. Relates to #23892
2017-08-17 16:57:26 -04:00
==== `:` is no longer allowed in cluster name
Due to cross-cluster search using `:` to separate a cluster and index name,
cluster names may no longer contain `:`.
Add v6.1 BWC layer for adding wait_for_active_shards to index open command This commit disables BWC tests while adding a v6.1 BWC layer for the PR #26682
2017-09-22 10:19:04 -04:00
[DOCS] Synchronize location of Breaking Changes (#33588)
2018-09-27 11:41:38 -04:00
[float]
remove _primary and _replica shard preferences (#26791) The shard preference _primary, _replica and its variants were useful for the asynchronous replication. However, with the current impl, they are no longer useful and should be removed. Closes #26335
2017-10-08 11:03:06 -04:00
==== New default for `wait_for_active_shards` parameter of the open index command
Add v6.1 BWC layer for adding wait_for_active_shards to index open command This commit disables BWC tests while adding a v6.1 BWC layer for the PR #26682
2017-09-22 10:19:04 -04:00
The default value for the `wait_for_active_shards` parameter of the open index API
is changed from 0 to 1, which means that the command will now by default wait for all
primary shards of the opened index to be allocated.
remove _primary and _replica shard preferences (#26791) The shard preference _primary, _replica and its variants were useful for the asynchronous replication. However, with the current impl, they are no longer useful and should be removed. Closes #26335
2017-10-08 11:03:06 -04:00
[DOCS] Synchronize location of Breaking Changes (#33588)
2018-09-27 11:41:38 -04:00
[float]
remove _primary and _replica shard preferences (#26791) The shard preference _primary, _replica and its variants were useful for the asynchronous replication. However, with the current impl, they are no longer useful and should be removed. Closes #26335
2017-10-08 11:03:06 -04:00
==== Shard preferences `_primary`, `_primary_first`, `_replica`, and `_replica_first` are removed
These shard preferences are removed in favour of the `_prefer_nodes` and `_only_nodes` preferences.
Add cluster-wide shard limit warnings (#34021) In a future major version, we will be introducing a soft limit on the number of shards in a cluster based on the number of nodes in the cluster. This limit will be configurable, and checked on operations which create or open shards and issue a warning if the operation would take the cluster over the limit. There is an option to enable strict enforcement of the limit, which turns the warnings into errors. In a future release, the option will be removed and strict enforcement will be the default (and only) behavior.
2018-10-23 18:35:10 -04:00
[float]
==== Cluster-wide shard soft limit
Clusters now have soft limits on the total number of open shards in the cluster
based on the number of nodes and the `cluster.max_shards_per_node` cluster
setting, to prevent accidental operations that would destabilize the cluster.
More information can be found in the <<misc-cluster,documentation for that setting>>.