mirror of
https://github.com/elastic/elasticsearch.git
synced 2025-06-29 01:44:36 -04:00
38 lines
1.9 KiB
Markdown
38 lines
1.9 KiB
Markdown
# Index settings
|
|
|
|
$$$index-modules-settings-description$$$
|
|
Index level settings can be set per-index. Settings may be:
|
|
|
|
* _Static_
|
|
They can only be set at index creation time or on a closed index, or by using the [update index settings API](https://www.elastic.co/docs/api/doc/elasticsearch/operation/operation-indices-put-settings) with the `reopen` query parameter set to `true` (which automatically closes and reopens impacted indices).
|
|
* _Dynamic_
|
|
They can be changed on a live index using the [update index settings API](https://www.elastic.co/docs/api/doc/elasticsearch/operation/operation-indices-put-settings).
|
|
|
|
::::{warning}
|
|
You can change any documented index settings on closed indices. However, changing undocumented index settings on closed indices is unsupported and might result in errors.
|
|
::::
|
|
|
|
Settings are available for the following modules:
|
|
|
|
* [History retention](history-retention.md)
|
|
Control the retention of a history of operations in the index.
|
|
* [Index](index-modules.md)
|
|
General settings that affect the behavior of indices.
|
|
* [Index shard allocation](shard-allocation.md)
|
|
Control where, when, and how shards are allocated to nodes.
|
|
* [Indexing pressure](pressure.md)
|
|
Configure indexing back pressure limits.
|
|
* [Merge](merge.md)
|
|
Control how shards are merged by the background merge process.
|
|
* [Similarities](similarity.md)
|
|
Configure custom similarity settings to customize how search results are scored.
|
|
* [Slowlog](slow-log.md)
|
|
Control how slow queries and fetch requests are logged.
|
|
* [Store](store.md)
|
|
Configure the type of filesystem used to access shard data.
|
|
* [Time series](time-series.md)
|
|
Configure the backing indices in a time series data stream (TSDS).
|
|
* [Translog](translog.md)
|
|
Control the transaction log and background flush operations.
|
|
|
|
There are also index settings associated with [text analysis](docs-content://manage-data/data-store/text-analysis.md), which define analyzers, tokenizers, token filters, and character filters.
|