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Document new experimental HTTP transport based on Netty 4 and Project Reactor #6265

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Jan 30, 2024
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Document new experimental HTTP transport based on Netty 4 and Project Reactor #6265

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Document new experimental HTTP transport based on Netty 4 and Project…
reta Jan 26, 2024
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Address code review comments
reta Jan 26, 2024
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Address code review comments
reta Jan 29, 2024
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Merge branch 'main' into issue-5540
vagimeli Jan 30, 2024
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9 changes: 9 additions & 0 deletions _install-and-configure/configuring-opensearch/network-settings.md
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Expand Up @@ -48,3 +48,12 @@ OpenSearch supports the following advanced network settings for transport commun
- `transport.bind_host` (Static, list): Specifies an address or addresses to which an OpenSearch node binds to listen for incoming transport connections.

- `transport.publish_host` (Static, list): Specifies an address or addresses that an OpenSearch node publishes to other nodes for transport communication.

## Selecting the transport

The default OpenSearch transport is provided by the `transport-netty4` module and uses the [Netty 4](https://netty.io/) engine for both internal TCP-based communication between nodes in the cluster and external HTTP-based communication with clients. This communication is fully asynchronous and non-blocking. However, there are other transport plugins available that can be used interchangeably:

Plugin | Description
:---------- | :--------
`transport-nio` | The OpenSearch transport based on Java NIO. <br> Installation: `./bin/opensearch-plugin install transport-nio` <br> Configuration (using `opensearch.yml`): <br> `transport.type: nio-transport` <br> `http.type: nio-http-transport`
`transport-reactor-netty4` | The OpenSearch HTTP transport based on [Project Reactor](https:/reactor/reactor-netty) and Netty 4 (**experimental**) <br> Installation: `./bin/opensearch-plugin install transport-reactor-netty4` <br> Configuration (using `opensearch.yml`): <br> `http.type: reactor-netty4`
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