[Upgrade Assistant] Forwardport from 7.x

docs/api/upgrade-assistant/batch_reindexing.asciidoc

@@ -6,7 +6,7 @@
 
 experimental["The underlying Upgrade Assistant concepts are stable, but the APIs for managing Upgrade Assistant are experimental."]
 
-Start or resume multiple reindexing tasks in one request. Additionally, reindexing tasks started or resumed
+Start or resume multiple <<start-resume-reindex, reindexing>> tasks in one request. Additionally, reindexing tasks started or resumed
 via the batch endpoint will be placed on a queue and executed one-by-one, which ensures that minimal cluster resources
 are consumed over time.
 
@@ -76,7 +76,7 @@ Similar to the <<start-resume-reindex, start or resume endpoint>>, the API retur
 }
 --------------------------------------------------
 
-<1> A list of reindex operations created, the order in the array indicates the order in which tasks will be executed.
+<1> A list of reindex tasks created, the order in the array indicates the order in which tasks will be executed.
 <2> Presence of this key indicates that the reindex job will occur in the batch.
 <3> A Unix timestamp of when the reindex task was placed in the queue.
 <4> A list of errors that may have occurred preventing the reindex task from being created.

docs/api/upgrade-assistant/cancel_reindex.asciidoc

@@ -4,7 +4,7 @@
 <titleabbrev>Cancel reindex</titleabbrev>
 ++++
 
-experimental[] Cancel reindexes that are waiting for the {es} reindex task to complete. For example, `lastCompletedStep` set to `40`.
+experimental["The underlying Upgrade Assistant concepts are stable, but the APIs for managing Upgrade Assistant are experimental."]
 
 Cancel reindexes that are waiting for the Elasticsearch reindex task to complete. For example, `lastCompletedStep` set to `40`.
 

docs/api/upgrade-assistant/check_reindex_status.asciidoc

@@ -4,7 +4,9 @@
 <titleabbrev>Check reindex status</titleabbrev>
 ++++
 
-experimental[] Check the status of the reindex operation.
+experimental["The underlying Upgrade Assistant concepts are stable, but the APIs for managing Upgrade Assistant are experimental."]
+
+Check the status of the reindex task.
 
 [[check-reindex-status-request]]
 ==== Request
@@ -43,7 +45,7 @@ The API returns the following:
 <2> Current status of the reindex. For details, see <<status-code,Status codes>>.
 <3> Last successfully completed step of the reindex. For details, see <<step-code,Step codes>> table.
 <4> Task ID of the reindex task in Elasticsearch. Only present if reindexing has started.
-<5> Percentage of how far the reindexing task in Elasticsearch has progressed, in decimal from from 0 to 1.
+<5> Percentage of how far the reindexing task in Elasticsearch has progressed, in decimal form from 0 to 1.
 <6> Error that caused the reindex to fail, if it failed.
 <7> An array of any warning codes explaining what changes are required for this reindex. For details, see <<warning-code,Warning codes>>.
 <8> Specifies if the user has sufficient privileges to reindex this index. When security is unavailable or disables, returns `true`.
@@ -73,7 +75,7 @@ To resume the reindex, you must submit a new POST request to the `/api/upgrade_a
 ==== Step codes
 
 `0`::
-  The reindex operation has been created in Kibana.
+  The reindex task has been created in Kibana.
 
 `10`::
   The index group services stopped. Only applies to some system indices.

docs/api/upgrade-assistant/reindexing.asciidoc

@@ -4,9 +4,18 @@
 <titleabbrev>Start or resume reindex</titleabbrev>
 ++++
 
-experimental[] Start a new reindex or resume a paused reindex.
+experimental["The underlying Upgrade Assistant concepts are stable, but the APIs for managing Upgrade Assistant are experimental."]
+
+Start a new reindex or resume a paused reindex. Following steps are performed during 
+a reindex task:
+
+. Setting the index to read-only
+. Creating a new index
+. {ref}/docs-reindex.html[Reindexing] documents into the new index
+. Creating an index alias for the new index
+. Deleting the old index
+
 
-Start a new reindex or resume a paused reindex.
 
 [[start-resume-reindex-request]]
 ==== Request
@@ -40,6 +49,6 @@ The API returns the following:
 <1> The name of the new index.
 <2> The reindex status. For more information, refer to <<status-code,Status codes>>.
 <3> The last successfully completed step of the reindex. For more information, refer to <<step-code,Step codes>>.
-<4> The task ID of the reindex task in {es}. Appears when the reindexing starts.
-<5> The progress of the reindexing task in {es}. Appears in decimal form, from 0 to 1.
+<4> The task ID of the {ref}/docs-reindex.html[reindex] task in {es}. Appears when the reindexing starts.
+<5> The progress of the {ref}/docs-reindex.html[reindexing] task in {es}. Appears in decimal form, from 0 to 1.
 <6> The error that caused the reindex to fail, if it failed.

docs/api/upgrade-assistant/status.asciidoc

@@ -4,7 +4,7 @@
 <titleabbrev>Upgrade readiness status</titleabbrev>
 ++++
 
-experimental[] Check the status of your cluster.
+experimental["The underlying Upgrade Assistant concepts are stable, but the APIs for managing Upgrade Assistant are experimental."]
 
 Check the status of your cluster.
 

docs/developer/plugin-list.asciidoc

@@ -600,8 +600,7 @@ As a developer you can reuse and extend built-in alerts and actions UI functiona
 
 
 |{kib-repo}blob/{branch}/x-pack/plugins/upgrade_assistant/README.md[upgradeAssistant]
-|Upgrade Assistant helps users prepare their Stack for being upgraded to the next major. Its primary
-purposes are to:
+|Upgrade Assistant helps users prepare their Stack for being upgraded to the next major. It will only be enabled on the last minor before the next major release. This is controlled via the config: xpack.upgrade_assistant.readonly (#101296).
 
 
 |{kib-repo}blob/{branch}/x-pack/plugins/uptime/README.md[uptime]

docs/development/core/public/kibana-plugin-core-public.doclinksstart.links.md

@@ -10,6 +10,9 @@
 readonly links: {
         readonly settings: string;
         readonly elasticStackGetStarted: string;
+        readonly upgrade: {
+            readonly upgradingElasticStack: string;
+        };
         readonly apm: {
             readonly kibanaSettings: string;
             readonly supportedServiceMaps: string;
@@ -133,7 +136,11 @@ readonly links: {
         };
         readonly addData: string;
         readonly kibana: string;
-        readonly upgradeAssistant: string;
+        readonly upgradeAssistant: {
+            readonly overview: string;
+            readonly batchReindex: string;
+            readonly remoteReindex: string;
+        };
         readonly rollupJobs: string;
         readonly elasticsearch: Record<string, string>;
         readonly siem: {

src/core/public/doc_links/doc_links_service.ts

@@ -22,6 +22,7 @@ export class DocLinksService {
     // Documentation for `main` branches is still published at a `master` URL.
     const DOC_LINK_VERSION = kibanaBranch === 'main' ? 'master' : kibanaBranch;
     const ELASTIC_WEBSITE_URL = 'https://www.elastic.co/';
+    const STACK_DOCS = `${ELASTIC_WEBSITE_URL}guide/en/elastic-stack/${DOC_LINK_VERSION}/`;
     const ELASTICSEARCH_DOCS = `${ELASTIC_WEBSITE_URL}guide/en/elasticsearch/reference/${DOC_LINK_VERSION}/`;
     const KIBANA_DOCS = `${ELASTIC_WEBSITE_URL}guide/en/kibana/${DOC_LINK_VERSION}/`;
     const FLEET_DOCS = `${ELASTIC_WEBSITE_URL}guide/en/fleet/${DOC_LINK_VERSION}/`;
@@ -36,6 +37,9 @@ export class DocLinksService {
       links: {
         settings: `${ELASTIC_WEBSITE_URL}guide/en/kibana/${DOC_LINK_VERSION}/settings.html`,
         elasticStackGetStarted: `${STACK_GETTING_STARTED}get-started-elastic-stack.html`,
+        upgrade: {
+          upgradingElasticStack: `${STACK_DOCS}upgrading-elastic-stack.html`,
+        },
         apm: {
           kibanaSettings: `${KIBANA_DOCS}apm-settings-in-kibana.html`,
           supportedServiceMaps: `${KIBANA_DOCS}service-maps.html#service-maps-supported`,
@@ -158,7 +162,11 @@ export class DocLinksService {
         },
         addData: `${KIBANA_DOCS}connect-to-elasticsearch.html`,
         kibana: `${KIBANA_DOCS}index.html`,
-        upgradeAssistant: `${KIBANA_DOCS}upgrade-assistant.html`,
+        upgradeAssistant: {
+          overview: `${KIBANA_DOCS}upgrade-assistant.html`,
+          batchReindex: `${KIBANA_DOCS}batch-start-resume-reindex.html`,
+          remoteReindex: `${ELASTICSEARCH_DOCS}docs-reindex.html#reindex-from-remote`,
+        },
         rollupJobs: `${KIBANA_DOCS}data-rollups.html`,
         elasticsearch: {
           docsBase: `${ELASTICSEARCH_DOCS}`,
@@ -222,10 +230,11 @@ export class DocLinksService {
           remoteClustersProxy: `${ELASTICSEARCH_DOCS}remote-clusters.html#proxy-mode`,
           remoteClusersProxySettings: `${ELASTICSEARCH_DOCS}remote-clusters-settings.html#remote-cluster-proxy-settings`,
           scriptParameters: `${ELASTICSEARCH_DOCS}modules-scripting-using.html#prefer-params`,
-          setupUpgrade: `${ELASTICSEARCH_DOCS}setup-upgrade.html`,
           shardAllocationSettings: `${ELASTICSEARCH_DOCS}modules-cluster.html#cluster-shard-allocation-settings`,
           transportSettings: `${ELASTICSEARCH_DOCS}modules-network.html#common-network-settings`,
           typesRemoval: `${ELASTICSEARCH_DOCS}removal-of-types.html`,
+          setupUpgrade: `${ELASTICSEARCH_DOCS}setup-upgrade.html`,
+          apiCompatibilityHeader: `${ELASTICSEARCH_DOCS}api-conventions.html#api-compatibility`,
         },
         siem: {
           guide: `${SECURITY_SOLUTION_DOCS}index.html`,
@@ -289,6 +298,7 @@ export class DocLinksService {
           outlierDetectionRoc: `${ELASTIC_WEBSITE_URL}guide/en/machine-learning/${DOC_LINK_VERSION}/ml-dfa-finding-outliers.html#ml-dfanalytics-roc`,
           regressionEvaluation: `${ELASTIC_WEBSITE_URL}guide/en/machine-learning/${DOC_LINK_VERSION}/ml-dfa-regression.html#ml-dfanalytics-regression-evaluation`,
           classificationAucRoc: `${ELASTIC_WEBSITE_URL}guide/en/machine-learning/${DOC_LINK_VERSION}/ml-dfa-classification.html#ml-dfanalytics-class-aucroc`,
+          setUpgradeMode: `${ELASTICSEARCH_DOCS}ml-set-upgrade-mode.html`,
         },
         transforms: {
           guide: `${ELASTICSEARCH_DOCS}transforms.html`,
@@ -522,6 +532,9 @@ export interface DocLinksStart {
   readonly links: {
     readonly settings: string;
     readonly elasticStackGetStarted: string;
+    readonly upgrade: {
+      readonly upgradingElasticStack: string;
+    };
     readonly apm: {
       readonly kibanaSettings: string;
       readonly supportedServiceMaps: string;
@@ -645,7 +658,11 @@ export interface DocLinksStart {
     };
     readonly addData: string;
     readonly kibana: string;
-    readonly upgradeAssistant: string;
+    readonly upgradeAssistant: {
+      readonly overview: string;
+      readonly batchReindex: string;
+      readonly remoteReindex: string;
+    };
     readonly rollupJobs: string;
     readonly elasticsearch: Record<string, string>;
     readonly siem: {

src/core/public/public.api.md

@@ -478,6 +478,9 @@ export interface DocLinksStart {
     readonly links: {
         readonly settings: string;
         readonly elasticStackGetStarted: string;
+        readonly upgrade: {
+            readonly upgradingElasticStack: string;
+        };
         readonly apm: {
             readonly kibanaSettings: string;
             readonly supportedServiceMaps: string;
@@ -601,7 +604,11 @@ export interface DocLinksStart {
         };
         readonly addData: string;
         readonly kibana: string;
-        readonly upgradeAssistant: string;
+        readonly upgradeAssistant: {
+            readonly overview: string;
+            readonly batchReindex: string;
+            readonly remoteReindex: string;
+        };
         readonly rollupJobs: string;
         readonly elasticsearch: Record<string, string>;
         readonly siem: {

src/plugins/es_ui_shared/public/request/use_request.ts

@@ -103,8 +103,13 @@ export const useRequest = <D = any, E = Error>(
           : serializedResponseData;
         setData(responseData);
       }
-      // Setting isLoading to false also acts as a signal for scheduling the next poll request.
-      setIsLoading(false);
+      // There can be situations in which a component that consumes this hook gets unmounted when
+      // the request returns an error. So before changing the isLoading state, check if the component
+      // is still mounted.
+      if (isMounted.current === true) {
+        // Setting isLoading to false also acts as a signal for scheduling the next poll request.
+        setIsLoading(false);
+      }
     },
     [requestBody, httpClient, deserializer, clearPollInterval]
   );

x-pack/plugins/telemetry_collection_xpack/schema/xpack_plugins.json

@@ -8079,44 +8079,6 @@
               }
             }
           }
-        },
-        "ui_open": {
-          "properties": {
-            "elasticsearch": {
-              "type": "long",
-              "_meta": {
-                "description": "Number of times a user viewed the list of Elasticsearch deprecations."
-              }
-            },
-            "overview": {
-              "type": "long",
-              "_meta": {
-                "description": "Number of times a user viewed the Overview page."
-              }
-            },
-            "kibana": {
-              "type": "long",
-              "_meta": {
-                "description": "Number of times a user viewed the list of Kibana deprecations"
-              }
-            }
-          }
-        },
-        "ui_reindex": {
-          "properties": {
-            "close": {
-              "type": "long"
-            },
-            "open": {
-              "type": "long"
-            },
-            "start": {
-              "type": "long"
-            },
-            "stop": {
-              "type": "long"
-            }
-          }
         }
       }
     },