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2f4143267e
#80556 reverted the deprecation of transient cluster settings. This replaces deprecation language in the docs with a warning/recommendation to avoid transient settings. Closes #80557 # Conflicts: # docs/reference/migration/migrate_7_16.asciidoc
116 lines
2.9 KiB
Text
116 lines
2.9 KiB
Text
[[transient-settings-migration-guide]]
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=== Transient settings migration guide
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////
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[source,console]
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----
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PUT _cluster/settings
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{
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"transient": {
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"cluster.indices.close.enable": false,
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"indices.recovery.max_bytes_per_sec": "50mb"
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}
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}
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----
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////
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We no longer recommend using transient cluster settings. You can use transient
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settings to make temporary configuration changes to a cluster. However, a
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cluster restart or cluster instability can unexpectedly clear these settings,
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leading to a potentially undesired cluster configuration.
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To avoid this risk, reset any transient settings you've configured on
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your cluster. Convert any transient setting you'd like to keep to a persistent
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setting, which persists across cluster restarts and cluster instability. You
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should also update any custom workflows and applications to use persistent
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settings instead of transient settings.
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IMPORTANT: Some Elastic products may use transient settings when performing
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specific operations. Only reset transient settings configured by you, your
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users, or your custom workflows and applications.
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To reset and convert transient settings:
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. Get a list of any configured transient settings using the
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<<cluster-get-settings,cluster get settings API>>.
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+
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[source,console]
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----
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GET _cluster/settings?flat_settings=true&filter_path=transient
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----
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// TEST[continued]
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+
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The API returns transient settings in the `transient` object. If this object is
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empty, your cluster has no transient settings, and you can skip the remaining
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steps.
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+
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[source,console-result]
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----
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{
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"persistent": { ... },
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"transient": {
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"cluster.indices.close.enable": "false",
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"indices.recovery.max_bytes_per_sec": "50mb"
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}
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}
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----
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// TESTRESPONSE[s/"persistent": \{ \.\.\. \},//]
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. Copy any settings you'd like to convert into the `persistent` object of a
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<<cluster-update-settings,cluster update settings API>> request. In the same
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request, reset any transient settings by assigning them a `null` value.
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+
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[source,console]
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----
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PUT _cluster/settings
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{
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"persistent": {
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"cluster.indices.close.enable": false,
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"indices.recovery.max_bytes_per_sec": "50mb"
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},
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"transient": {
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"*": null
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}
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}
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----
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// TEST[continued]
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. Use the <<cluster-get-settings,cluster get settings API>> to confirm your
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cluster has no remaining transient settings.
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+
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[source,console]
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----
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GET _cluster/settings?flat_settings=true
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----
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// TEST[continued]
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+
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If the `transient` object is empty, your cluster has no transient settings.
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+
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[source,console-result]
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----
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{
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"persistent": {
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"cluster.indices.close.enable": "false",
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"indices.recovery.max_bytes_per_sec": "50mb",
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...
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},
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"transient": {
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}
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}
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----
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// TESTRESPONSE[s/"50mb",/"50mb"/]
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// TESTRESPONSE[s/\.\.\.//]
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////
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[source,console]
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----
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PUT _cluster/settings
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{
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"persistent" : {
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"cluster.indices.close.enable": null,
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"indices.recovery.max_bytes_per_sec": null
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}
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}
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----
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// TEST[continued]
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////
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