> ## Documentation Index
> Fetch the complete documentation index at: https://docs.kinetica.com/llms.txt
> Use this file to discover all available pages before exploring further.

# admin_alter_host

[Source](https://github.com/kineticadb/kinetica-api-rust/blob/master/crates/gpudb-api/src/generated/admin_alter_host.rs#L23-L29)
pub async fn [admin\_alter\_host](https://docs.kinetica.com/content/api/rust/gpudb/struct.Kinetica/admin-alter-host.md#method.admin_alter_host)( \&self, host: [String](https://doc.rust-lang.org/1.98.1/alloc/string/struct.String.html), ) -> [Result](https://doc.rust-lang.org/1.98.1/core/result/enum.Result.html)\<[AdminAlterHostResponse](https://docs.kinetica.com/content/api/rust/generated/api/struct.AdminAlterHostResponse.md), [KineticaError](https://docs.kinetica.com/content/api/rust/errors/enum.KineticaError.md)>

Alter properties on a host currently in the clusterAlter properties on an existing host in the cluster. Currently, the only property that can be altered is a hosts ability to accept failover processes.

##### Arguments

<ul>
  <li>`host` - Identifies the host this applies to. Can be the host address, or formatted as ‘hostN’ where N is the host number as specified in gpudb.conf.</li>
</ul>

[Source](https://github.com/kineticadb/kinetica-api-rust/blob/master/crates/gpudb-api/src/generated/admin_alter_host.rs#L44-L60)
pub async fn [admin\_alter\_host\_with\_opts](https://docs.kinetica.com/content/api/rust/gpudb/struct.Kinetica/admin-alter-host.md#method.admin_alter_host_with_opts)( \&self, host: [String](https://doc.rust-lang.org/1.98.1/alloc/string/struct.String.html), options: [AdminAlterHostRequestOptions](https://docs.kinetica.com/content/api/rust/generated/api/struct.AdminAlterHostRequestOptions.md), ) -> [Result](https://doc.rust-lang.org/1.98.1/core/result/enum.Result.html)\<[AdminAlterHostResponse](https://docs.kinetica.com/content/api/rust/generated/api/struct.AdminAlterHostResponse.md), [KineticaError](https://docs.kinetica.com/content/api/rust/errors/enum.KineticaError.md)>

Alter properties on a host currently in the clusterAlter properties on an existing host in the cluster. Currently, the only property that can be altered is a hosts ability to accept failover processes.

##### Arguments

<ul>
  <li>`host` - Identifies the host this applies to. Can be the host address, or formatted as ‘hostN’ where N is the host number as specified in gpudb.conf.</li>
  <li>`options` - The optional parameters; any left unset take the server’s defaults.</li>
</ul>

[Source](https://github.com/kineticadb/kinetica-api-rust/blob/master/crates/gpudb-api/src/generated/admin_alter_host.rs#L63-L74)
pub async fn [admin\_alter\_host\_raw](https://docs.kinetica.com/content/api/rust/gpudb/struct.Kinetica/admin-alter-host.md#method.admin_alter_host_raw)( \&self, request: &[AdminAlterHostRequest](https://docs.kinetica.com/content/api/rust/generated/api/struct.AdminAlterHostRequest.md), ) -> [Result](https://doc.rust-lang.org/1.98.1/core/result/enum.Result.html)\<[AdminAlterHostResponse](https://docs.kinetica.com/content/api/rust/generated/api/struct.AdminAlterHostResponse.md), [KineticaError](https://docs.kinetica.com/content/api/rust/errors/enum.KineticaError.md)>

Sends a pre-built [`AdminAlterHostRequest`](https://docs.kinetica.com/content/api/rust/generated/api/struct.AdminAlterHostRequest) to the `/admin/alter/host` endpoint.

[Source](https://github.com/kineticadb/kinetica-api-rust/blob/master/crates/gpudb-api/src/generated/admin_alter_host.rs#L78-L90)
pub async fn [admin\_alter\_host\_from\_url](https://docs.kinetica.com/content/api/rust/gpudb/struct.Kinetica/admin-alter-host.md#method.admin_alter_host_from_url)( \&self, url: &[str](https://doc.rust-lang.org/1.98.1/std/primitive.str.html), request: &[AdminAlterHostRequest](https://docs.kinetica.com/content/api/rust/generated/api/struct.AdminAlterHostRequest.md), ) -> [Result](https://doc.rust-lang.org/1.98.1/core/result/enum.Result.html)\<[AdminAlterHostResponse](https://docs.kinetica.com/content/api/rust/generated/api/struct.AdminAlterHostResponse.md), [KineticaError](https://docs.kinetica.com/content/api/rust/errors/enum.KineticaError.md)>

Sends a pre-built [`AdminAlterHostRequest`](https://docs.kinetica.com/content/api/rust/generated/api/struct.AdminAlterHostRequest) to a specific worker URL, bypassing HA head-node selection. Used for multi-head access.


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