📅 最后修改于: 2020-10-30 14:22:01 🧑 作者: Mango
这些是为每个索引创建的模块，用于控制索引的设置和行为。例如，索引可以使用多少个分片或该索引的主分片可以具有的副本数等。索引设置有两种类型-
下表显示了静态索引设置的列表-
| Setting | Possible value | Description |
|---|---|---|
| index.number_of_shards | Defaults to 5, Maximum 1024 | The number of primary shards that an index should have. |
| index.shard.check_on_startup | Defaults to false. Can be True | Whether or not shards should be checked for corruption before opening. |
| index.codec | LZ4 compression. | Type of compression used to store data. |
| index.routing_partition_size | 1 | The number of shards a custom routing value can go to. |
| index.load_fixed_bitset_filters_eagerly | false | Indicates whether cached filters are pre-loaded for nested queries |
下表显示了动态索引设置的列表-
| Setting | Possible value | Description |
|---|---|---|
| index.number_of_replicas | Defaults to 1 | The number of replicas each primary shard has. |
| index.auto_expand_replicas | A dash delimited lower and upper bound (0-5) | Auto-expand the number of replicas based on the number of data nodes in the cluster. |
| index.search.idle.after | 30seconds | How long a shard cannot receive a search or get request until it’s considered search idle. |
| index.refresh_interval | 1 second | How often to perform a refresh operation, which makes recent changes to the index visible to search. |