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* Make API reference top level Signed-off-by: Naarcha-AWS <[email protected]> * Fix typo on Drag and Drop page (#1633) * Fix typo on Drag and Drop page * Update _dashboards/drag-drop-wizard.md Co-authored-by: Nate Bower <[email protected]> * Update drag-drop-wizard.md Co-authored-by: Nate Bower <[email protected]> * Putting all the Docker install material on a single page (#1452) * Putting all the Docker install material on a single page Signed-off-by: JeffH-AWS <[email protected]> * Making room for revamp Signed-off-by: JeffH-AWS <[email protected]> * Intro added Signed-off-by: JeffH-AWS <[email protected]> * Continuing to flesh out the intro section and overview Signed-off-by: JeffH-AWS <[email protected]> * Overview finalized Signed-off-by: JeffH-AWS <[email protected]> * Introducing docker compose Signed-off-by: JeffH-AWS <[email protected]> * Added link to compose Signed-off-by: JeffH-AWS <[email protected]> * Continuing docker image commentary Signed-off-by: JeffH-AWS <[email protected]> * Sometimes I wonder if anyone reads these Signed-off-by: JeffH-AWS <[email protected]> * Adding notes on installing compose with pip Signed-off-by: JeffH-AWS <[email protected]> * Adding prereqs Signed-off-by: JeffH-AWS <[email protected]> * Magnets - how do they work? 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Signed-off-by: JeffH-AWS <[email protected]> * Final editorial changes Signed-off-by: JeffH-AWS <[email protected]> Signed-off-by: JeffH-AWS <[email protected]> * fix#1584-custom_attr_allowlist (#1636) Signed-off-by: cwillum <[email protected]> Signed-off-by: cwillum <[email protected]> * Update TERMS.md with definition for Setting (#1632) * fix#1631-Terms-setting Signed-off-by: cwillum <[email protected]> * fix#1631-Terms-setting Signed-off-by: cwillum <[email protected]> Signed-off-by: cwillum <[email protected]> * Add disclaimer about remote fs usage and an example of setting env var (#1644) * Add disclaimer about remote fs usage and an example of setting env var Signed-off-by: JeffH-AWS <[email protected]> * Enhanced wording a little bit Signed-off-by: JeffH-AWS <[email protected]> Signed-off-by: JeffH-AWS <[email protected]> * [DOC] New documentation: Self-host maps server (#1625) * Add new page self-host maps server Signed-off-by: vagimeli <[email protected]> * Added new content Signed-off-by: vagimeli <[email protected]> * Copy edit Signed-off-by: vagimeli <[email protected]> * Tech review edits Signed-off-by: vagimeli <[email protected]> * Doc review edits Signed-off-by: vagimeli <[email protected]> * Editorial review changes Signed-off-by: vagimeli <[email protected]> * Final edits Signed-off-by: vagimeli <[email protected]> Signed-off-by: vagimeli <[email protected]> * Add feedback. 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layout, title, has_children, nav_order
| layout | title | has_children | nav_order |
|---|---|---|---|
| default | Nodes APIs | true | 50 |
Nodes API
The nodes API makes it possible to retrieve information about individual nodes within your cluster.
Node filters
Use the <node-filters> parameter to filter the target set of nodes in the API response.
| Parameter | Type | Description |
|---|---|---|
<node-filters> |
String | A comma-separated list of resolution mechanisms that OpenSearch uses to identify cluster nodes. |
Node filters support several node resolution mechanisms:
- Predefined constants:
_local,_cluster_manager, or_all. - An exact match for
nodeID - A simple case-sensitive wildcard pattern matching for
node-name,host-name, orhost-IP-address. - Node roles where the
<bool>value is set either totrueorfalse:cluster_manager:<bool>refers to all cluster manager-eligible nodes.data:<bool>refers to all data nodes.ingest:<bool>refers to all ingest nodes.voting_only:<bool>refers to all voting-only nodes.ml:<bool>refers to all machine learning (ML) nodes.coordinating_only:<bool>refers to all coordinating-only nodes.
- A simple case-sensitive wildcard pattern matching for node attributes:
<node attribute*>:<attribute value*>. The wildcard matching pattern can be used in both the key and value at the same time.
Resolution mechanisms are applied sequentially in the order specified by the client. Each mechanism specification can either add or remove nodes.
To get statistics from the elected cluster manager node only, use the following query :
GET /_nodes/_cluster_manager/stats
To get statistics from nodes that are data-only nodes, use the following query:
GET /_nodes/data:true/stats
Order of resolution mechanisms
The order of resolution mechanisms is applied sequentially, and each can add or remove nodes. The following examples yield different results.
To get statistics from all the nodes except the cluster manager node, use the following query:
GET /_nodes/_all,cluster_manager:false/stats
However, if you switch the resolution mechanisms, the result will include all the cluster nodes, including the cluster manager node:
GET /_nodes/cluster_manager:false,_all/stats