OpenSearch/docs/reference/settings/transform-settings.asciidoc

[role="xpack"]
[[transform-settings]]
=== {transforms-cap}  settings in Elasticsearch
[subs="attributes"]
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<titleabbrev>{transforms-cap} settings</titleabbrev>
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You do not need to configure any settings to use {transforms}. It is enabled by default.

All of these settings can be added to the `elasticsearch.yml` configuration file.
The dynamic settings can also be updated across a cluster with the
<<cluster-update-settings,cluster update settings API>>.

TIP: Dynamic settings take precedence over settings in the `elasticsearch.yml`
file.

[float]
[[general-transform-settings]]
==== General {transforms} settings

`node.transform`::
Set to `true` to identify the node as a _transform node_. If either `node.data`
or `xpack.transform.enabled` is `false` for the node, the default value is
`false`. Otherwise, the default value is `true`.
+
If set to `false` in `elasticsearch.yml`, the node cannot run transforms. If set to
`true` but `xpack.transform.enabled` is set to `false`, the `node.transform` setting is
ignored and the node cannot run transforms. If you want to run transforms, there must be at
least one transform node in your cluster. +
+
IMPORTANT: It is advised to use the `node.transform` setting to constrain the execution
of transforms to certain nodes instead of using `xpack.transform.enabled`. On dedicated
coordinating nodes or dedicated master nodes, disable the node.transform role.

`xpack.transform.enabled`::
Set to `true` (default) to enable {transforms} on the node. +
+
If set to `false` in `elasticsearch.yml`, the {transform} APIs are disabled on
the node. Therefore the node cannot start or administrate {transforms} or
receive transport (internal) communication requests related to {transform} APIs.
If the node is a coordinating node, {transform} requests from clients (including
{kib}) also fail. 
+
IMPORTANT: If you want to use {transform} features in your cluster, it is
recommended that you set `xpack.transform.enabled` to `true` on all nodes. This
is the default behavior. At a minimum, it must be enabled on all master-eligible
nodes and all data nodes. If you want to use {transforms} in clients or {kib},
it must also be enabled on all coordinating nodes.

`xpack.transform.num_transform_failure_retries` (<<cluster-update-settings,Dynamic>>)::
The number of times that a {transform} retries when it experiences a
non-fatal error. Once the number of retries is exhausted, the {transform}
task will be marked as `failed`. The default value is `10` with a valid minimum of `0`
and maximum of `100`.
If a {transform} is already running, it will have to be restarted
to use the changed setting.