Merge branch 'master' into eql_rules_creation

* master: (38 commits)
  Reporting/Test: unskip non-screenshot tests (elastic#77088)
  Move metrics to setup and add cgroup metrics (elastic#76730)
  [Enterprise Search] Add Overview landing page/plugin (elastic#76734)
  First pass. Change TS type. Update OpenAPI (elastic#76434)
  [CI] Balance xpack ci groups a bit (elastic#77068)
  [Security_solution][Detections] Refactor signal ancestry to allow multiple parents (elastic#76531)
  [Maps] convert MetricsEditor to TS (elastic#76727)
  IndexMigrator: fix non blocking migration wrapper promise rejection (elastic#77018)
  [Enterprise Search] Update config data endpoint to v2 (elastic#76970)
  [ML] Add decision path charts to exploration results table (elastic#73561)
  Bump eventemitter3 from 4.0.0 to 4.0.7 (elastic#77016)
  [Ingest Pipelines] Add descriptions for ingest processors K-S (elastic#76981)
  [Metrics UI] Replace Snapshot API with Metrics API (elastic#76253)
  legacy utils cleanup (elastic#76608)
  [ML] Account for "properties" layer in find_file_structure mappings (elastic#77035)
  fixed typo
  Upgrade to Kea 2.2 (elastic#77047)
  a11y tests on spaces home page including feature control  (elastic#76515)
  [ML] Transforms list: persist pagination through refresh interval (elastic#76786)
  [ML] Replace all use of date_histogram interval with fixed_interval (elastic#76876)
  ...

docs/apm/troubleshooting.asciidoc

@@ -49,7 +49,7 @@ GET /_template/apm-{version}
 *Using Logstash, Kafka, etc.*
 If you're not outputting data directly from APM Server to Elasticsearch (perhaps you're using Logstash or Kafka),
 then the index template will not be set up automatically. Instead, you'll need to
-{apm-server-ref}/_manually_loading_template_configuration.html[load the template manually].
+{apm-server-ref}/configuration-template.html[load the template manually].
 
 *Using a custom index names*
 This problem can also occur if you've customized the index name that you write APM data to.

docs/development/core/server/kibana-plugin-core-server.md

@@ -123,7 +123,7 @@ The plugin integrates with the core system via lifecycle events: `setup`<!-- -->
 |  [LoggerFactory](./kibana-plugin-core-server.loggerfactory.md) | The single purpose of <code>LoggerFactory</code> interface is to define a way to retrieve a context-based logger instance. |
 |  [LoggingServiceSetup](./kibana-plugin-core-server.loggingservicesetup.md) | Provides APIs to plugins for customizing the plugin's logger. |
 |  [LogMeta](./kibana-plugin-core-server.logmeta.md) | Contextual metadata |
-|  [MetricsServiceSetup](./kibana-plugin-core-server.metricsservicesetup.md) |  |
+|  [MetricsServiceSetup](./kibana-plugin-core-server.metricsservicesetup.md) | APIs to retrieves metrics gathered and exposed by the core platform. |
 |  [NodesVersionCompatibility](./kibana-plugin-core-server.nodesversioncompatibility.md) |  |
 |  [OnPostAuthToolkit](./kibana-plugin-core-server.onpostauthtoolkit.md) | A tool set defining an outcome of OnPostAuth interceptor for incoming request. |
 |  [OnPreAuthToolkit](./kibana-plugin-core-server.onpreauthtoolkit.md) | A tool set defining an outcome of OnPreAuth interceptor for incoming request. |

docs/development/core/server/kibana-plugin-core-server.metricsservicesetup.collectioninterval.md

@@ -0,0 +1,13 @@
+<!-- Do not edit this file. It is automatically generated by API Documenter. -->
+
+[Home](./index.md) &gt; [kibana-plugin-core-server](./kibana-plugin-core-server.md) &gt; [MetricsServiceSetup](./kibana-plugin-core-server.metricsservicesetup.md) &gt; [collectionInterval](./kibana-plugin-core-server.metricsservicesetup.collectioninterval.md)
+
+## MetricsServiceSetup.collectionInterval property
+
+Interval metrics are collected in milliseconds
+
+<b>Signature:</b>
+
+```typescript
+readonly collectionInterval: number;
+```

docs/development/core/server/kibana-plugin-core-server.metricsservicesetup.getopsmetrics_.md

@@ -0,0 +1,24 @@
+<!-- Do not edit this file. It is automatically generated by API Documenter. -->
+
+[Home](./index.md) &gt; [kibana-plugin-core-server](./kibana-plugin-core-server.md) &gt; [MetricsServiceSetup](./kibana-plugin-core-server.metricsservicesetup.md) &gt; [getOpsMetrics$](./kibana-plugin-core-server.metricsservicesetup.getopsmetrics_.md)
+
+## MetricsServiceSetup.getOpsMetrics$ property
+
+Retrieve an observable emitting the [OpsMetrics](./kibana-plugin-core-server.opsmetrics.md) gathered. The observable will emit an initial value during core's `start` phase, and a new value every fixed interval of time, based on the `opts.interval` configuration property.
+
+<b>Signature:</b>
+
+```typescript
+getOpsMetrics$: () => Observable<OpsMetrics>;
+```
+
+## Example
+
+
+```ts
+core.metrics.getOpsMetrics$().subscribe(metrics => {
+  // do something with the metrics
+})
+
+```
+

docs/development/core/server/kibana-plugin-core-server.metricsservicesetup.md

@@ -4,8 +4,18 @@
 
 ## MetricsServiceSetup interface
 
+APIs to retrieves metrics gathered and exposed by the core platform.
+
 <b>Signature:</b>
 
 ```typescript
 export interface MetricsServiceSetup 
 ```
+
+## Properties
+
+|  Property | Type | Description |
+|  --- | --- | --- |
+|  [collectionInterval](./kibana-plugin-core-server.metricsservicesetup.collectioninterval.md) | <code>number</code> | Interval metrics are collected in milliseconds |
+|  [getOpsMetrics$](./kibana-plugin-core-server.metricsservicesetup.getopsmetrics_.md) | <code>() =&gt; Observable&lt;OpsMetrics&gt;</code> | Retrieve an observable emitting the [OpsMetrics](./kibana-plugin-core-server.opsmetrics.md) gathered. The observable will emit an initial value during core's <code>start</code> phase, and a new value every fixed interval of time, based on the <code>opts.interval</code> configuration property. |
+

docs/development/core/server/kibana-plugin-core-server.opsmetrics.collected_at.md

@@ -0,0 +1,13 @@
+<!-- Do not edit this file. It is automatically generated by API Documenter. -->
+
+[Home](./index.md) &gt; [kibana-plugin-core-server](./kibana-plugin-core-server.md) &gt; [OpsMetrics](./kibana-plugin-core-server.opsmetrics.md) &gt; [collected\_at](./kibana-plugin-core-server.opsmetrics.collected_at.md)
+
+## OpsMetrics.collected\_at property
+
+Time metrics were recorded at.
+
+<b>Signature:</b>
+
+```typescript
+collected_at: Date;
+```

docs/development/core/server/kibana-plugin-core-server.opsmetrics.md

@@ -16,6 +16,7 @@ export interface OpsMetrics
 
 |  Property | Type | Description |
 |  --- | --- | --- |
+|  [collected\_at](./kibana-plugin-core-server.opsmetrics.collected_at.md) | <code>Date</code> | Time metrics were recorded at. |
 |  [concurrent\_connections](./kibana-plugin-core-server.opsmetrics.concurrent_connections.md) | <code>OpsServerMetrics['concurrent_connections']</code> | number of current concurrent connections to the server |
 |  [os](./kibana-plugin-core-server.opsmetrics.os.md) | <code>OpsOsMetrics</code> | OS related metrics |
 |  [process](./kibana-plugin-core-server.opsmetrics.process.md) | <code>OpsProcessMetrics</code> | Process related metrics |

docs/development/core/server/kibana-plugin-core-server.opsosmetrics.cpu.md

@@ -0,0 +1,22 @@
+<!-- Do not edit this file. It is automatically generated by API Documenter. -->
+
+[Home](./index.md) &gt; [kibana-plugin-core-server](./kibana-plugin-core-server.md) &gt; [OpsOsMetrics](./kibana-plugin-core-server.opsosmetrics.md) &gt; [cpu](./kibana-plugin-core-server.opsosmetrics.cpu.md)
+
+## OpsOsMetrics.cpu property
+
+cpu cgroup metrics, undefined when not running in a cgroup
+
+<b>Signature:</b>
+
+```typescript
+cpu?: {
+        control_group: string;
+        cfs_period_micros: number;
+        cfs_quota_micros: number;
+        stat: {
+            number_of_elapsed_periods: number;
+            number_of_times_throttled: number;
+            time_throttled_nanos: number;
+        };
+    };
+```

docs/development/core/server/kibana-plugin-core-server.opsosmetrics.cpuacct.md

@@ -0,0 +1,16 @@
+<!-- Do not edit this file. It is automatically generated by API Documenter. -->
+
+[Home](./index.md) &gt; [kibana-plugin-core-server](./kibana-plugin-core-server.md) &gt; [OpsOsMetrics](./kibana-plugin-core-server.opsosmetrics.md) &gt; [cpuacct](./kibana-plugin-core-server.opsosmetrics.cpuacct.md)
+
+## OpsOsMetrics.cpuacct property
+
+cpu accounting metrics, undefined when not running in a cgroup
+
+<b>Signature:</b>
+
+```typescript
+cpuacct?: {
+        control_group: string;
+        usage_nanos: number;
+    };
+```

docs/development/core/server/kibana-plugin-core-server.opsosmetrics.md

@@ -16,6 +16,8 @@ export interface OpsOsMetrics
 
 |  Property | Type | Description |
 |  --- | --- | --- |
+|  [cpu](./kibana-plugin-core-server.opsosmetrics.cpu.md) | <code>{</code><br/><code>        control_group: string;</code><br/><code>        cfs_period_micros: number;</code><br/><code>        cfs_quota_micros: number;</code><br/><code>        stat: {</code><br/><code>            number_of_elapsed_periods: number;</code><br/><code>            number_of_times_throttled: number;</code><br/><code>            time_throttled_nanos: number;</code><br/><code>        };</code><br/><code>    }</code> | cpu cgroup metrics, undefined when not running in a cgroup |
+|  [cpuacct](./kibana-plugin-core-server.opsosmetrics.cpuacct.md) | <code>{</code><br/><code>        control_group: string;</code><br/><code>        usage_nanos: number;</code><br/><code>    }</code> | cpu accounting metrics, undefined when not running in a cgroup |
 |  [distro](./kibana-plugin-core-server.opsosmetrics.distro.md) | <code>string</code> | The os distrib. Only present for linux platforms |
 |  [distroRelease](./kibana-plugin-core-server.opsosmetrics.distrorelease.md) | <code>string</code> | The os distrib release, prefixed by the os distrib. Only present for linux platforms |
 |  [load](./kibana-plugin-core-server.opsosmetrics.load.md) | <code>{</code><br/><code>        '1m': number;</code><br/><code>        '5m': number;</code><br/><code>        '15m': number;</code><br/><code>    }</code> | cpu load metrics |

docs/development/plugins/data/public/kibana-plugin-plugins-data-public.getsearchparamsfromrequest.md

@@ -9,7 +9,6 @@
 
 ```typescript
 export declare function getSearchParamsFromRequest(searchRequest: SearchRequest, dependencies: {
-    esShardTimeout: number;
     getConfig: GetConfigFn;
 }): ISearchRequestParams;
 ```
@@ -19,7 +18,7 @@ export declare function getSearchParamsFromRequest(searchRequest: SearchRequest,
 |  Parameter | Type | Description |
 |  --- | --- | --- |
 |  searchRequest | <code>SearchRequest</code> |  |
-|  dependencies | <code>{</code><br/><code>    esShardTimeout: number;</code><br/><code>    getConfig: GetConfigFn;</code><br/><code>}</code> |  |
+|  dependencies | <code>{</code><br/><code>    getConfig: GetConfigFn;</code><br/><code>}</code> |  |
 
 <b>Returns:</b>
 

docs/development/plugins/data/public/kibana-plugin-plugins-data-public.searchinterceptor._constructor_.md

@@ -4,18 +4,17 @@
 
 ## SearchInterceptor.(constructor)
 
-This class should be instantiated with a `requestTimeout` corresponding with how many ms after requests are initiated that they should automatically cancel.
+Constructs a new instance of the `SearchInterceptor` class
 
 <b>Signature:</b>
 
 ```typescript
-constructor(deps: SearchInterceptorDeps, requestTimeout?: number | undefined);
+constructor(deps: SearchInterceptorDeps);
 ```
 
 ## Parameters
 
 |  Parameter | Type | Description |
 |  --- | --- | --- |
 |  deps | <code>SearchInterceptorDeps</code> |  |
-|  requestTimeout | <code>number &#124; undefined</code> |  |
 

docs/development/plugins/data/public/kibana-plugin-plugins-data-public.searchinterceptor.md

@@ -14,21 +14,18 @@ export declare class SearchInterceptor
 
 |  Constructor | Modifiers | Description |
 |  --- | --- | --- |
-|  [(constructor)(deps, requestTimeout)](./kibana-plugin-plugins-data-public.searchinterceptor._constructor_.md) |  | This class should be instantiated with a <code>requestTimeout</code> corresponding with how many ms after requests are initiated that they should automatically cancel. |
+|  [(constructor)(deps)](./kibana-plugin-plugins-data-public.searchinterceptor._constructor_.md) |  | Constructs a new instance of the <code>SearchInterceptor</code> class |
 
 ## Properties
 
 |  Property | Modifiers | Type | Description |
 |  --- | --- | --- | --- |
 |  [deps](./kibana-plugin-plugins-data-public.searchinterceptor.deps.md) |  | <code>SearchInterceptorDeps</code> |  |
-|  [requestTimeout](./kibana-plugin-plugins-data-public.searchinterceptor.requesttimeout.md) |  | <code>number &#124; undefined</code> |  |
 
 ## Methods
 
 |  Method | Modifiers | Description |
 |  --- | --- | --- |
 |  [getPendingCount$()](./kibana-plugin-plugins-data-public.searchinterceptor.getpendingcount_.md) |  | Returns an <code>Observable</code> over the current number of pending searches. This could mean that one of the search requests is still in flight, or that it has only received partial responses. |
-|  [runSearch(request, signal, strategy)](./kibana-plugin-plugins-data-public.searchinterceptor.runsearch.md) |  |  |
 |  [search(request, options)](./kibana-plugin-plugins-data-public.searchinterceptor.search.md) |  | Searches using the given <code>search</code> method. Overrides the <code>AbortSignal</code> with one that will abort either when <code>cancelPending</code> is called, when the request times out, or when the original <code>AbortSignal</code> is aborted. Updates <code>pendingCount$</code> when the request is started/finalized. |
-|  [setupTimers(options)](./kibana-plugin-plugins-data-public.searchinterceptor.setuptimers.md) |  |  |
 

docs/development/plugins/data/public/kibana-plugin-plugins-data-public.ui_settings.md

@@ -20,6 +20,7 @@ UI_SETTINGS: {
     readonly COURIER_MAX_CONCURRENT_SHARD_REQUESTS: "courier:maxConcurrentShardRequests";
     readonly COURIER_BATCH_SEARCHES: "courier:batchSearches";
     readonly SEARCH_INCLUDE_FROZEN: "search:includeFrozen";
+    readonly SEARCH_TIMEOUT: "search:timeout";
     readonly HISTOGRAM_BAR_TARGET: "histogram:barTarget";
     readonly HISTOGRAM_MAX_BARS: "histogram:maxBars";
     readonly HISTORY_LIMIT: "history:limit";

docs/development/plugins/data/server/kibana-plugin-plugins-data-server.getdefaultsearchparams.md

@@ -7,24 +7,26 @@
 <b>Signature:</b>
 
 ```typescript
-export declare function getDefaultSearchParams(config: SharedGlobalConfig): {
-    timeout: string;
+export declare function getDefaultSearchParams(uiSettingsClient: IUiSettingsClient): Promise<{
+    maxConcurrentShardRequests: number | undefined;
+    ignoreThrottled: boolean;
     ignoreUnavailable: boolean;
-    restTotalHitsAsInt: boolean;
-};
+    trackTotalHits: boolean;
+}>;
 ```
 
 ## Parameters
 
 |  Parameter | Type | Description |
 |  --- | --- | --- |
-|  config | <code>SharedGlobalConfig</code> |  |
+|  uiSettingsClient | <code>IUiSettingsClient</code> |  |
 
 <b>Returns:</b>
 
-`{
-    timeout: string;
+`Promise<{
+    maxConcurrentShardRequests: number | undefined;
+    ignoreThrottled: boolean;
     ignoreUnavailable: boolean;
-    restTotalHitsAsInt: boolean;
-}`
+    trackTotalHits: boolean;
+}>`
 

docs/development/plugins/data/server/kibana-plugin-plugins-data-server.getshardtimeout.md

@@ -0,0 +1,30 @@
+<!-- Do not edit this file. It is automatically generated by API Documenter. -->
+
+[Home](./index.md) &gt; [kibana-plugin-plugins-data-server](./kibana-plugin-plugins-data-server.md) &gt; [getShardTimeout](./kibana-plugin-plugins-data-server.getshardtimeout.md)
+
+## getShardTimeout() function
+
+<b>Signature:</b>
+
+```typescript
+export declare function getShardTimeout(config: SharedGlobalConfig): {
+    timeout: string;
+} | {
+    timeout?: undefined;
+};
+```
+
+## Parameters
+
+|  Parameter | Type | Description |
+|  --- | --- | --- |
+|  config | <code>SharedGlobalConfig</code> |  |
+
+<b>Returns:</b>
+
+`{
+    timeout: string;
+} | {
+    timeout?: undefined;
+}`
+

docs/development/plugins/data/server/kibana-plugin-plugins-data-server.md

@@ -26,11 +26,13 @@
 
 |  Function | Description |
 |  --- | --- |
-|  [getDefaultSearchParams(config)](./kibana-plugin-plugins-data-server.getdefaultsearchparams.md) |  |
+|  [getDefaultSearchParams(uiSettingsClient)](./kibana-plugin-plugins-data-server.getdefaultsearchparams.md) |  |
+|  [getShardTimeout(config)](./kibana-plugin-plugins-data-server.getshardtimeout.md) |  |
 |  [getTime(indexPattern, timeRange, options)](./kibana-plugin-plugins-data-server.gettime.md) |  |
 |  [parseInterval(interval)](./kibana-plugin-plugins-data-server.parseinterval.md) |  |
 |  [plugin(initializerContext)](./kibana-plugin-plugins-data-server.plugin.md) | Static code to be shared externally |
 |  [shouldReadFieldFromDocValues(aggregatable, esType)](./kibana-plugin-plugins-data-server.shouldreadfieldfromdocvalues.md) |  |
+|  [toSnakeCase(obj)](./kibana-plugin-plugins-data-server.tosnakecase.md) |  |
 |  [usageProvider(core)](./kibana-plugin-plugins-data-server.usageprovider.md) |  |
 
 ## Interfaces

docs/development/plugins/data/server/kibana-plugin-plugins-data-server.plugin.start.md

@@ -8,7 +8,7 @@
 
 ```typescript
 start(core: CoreStart): {
-        search: ISearchStart<import(".").IEsSearchRequest, import(".").IEsSearchResponse<any>>;
+        search: ISearchStart<import("./search").IEsSearchRequest, import("./search").IEsSearchResponse<any>>;
         fieldFormats: {
             fieldFormatServiceFactory: (uiSettings: import("../../../core/server").IUiSettingsClient) => Promise<import("../common").FieldFormatsRegistry>;
         };
@@ -27,7 +27,7 @@ start(core: CoreStart): {
 <b>Returns:</b>
 
 `{
-        search: ISearchStart<import(".").IEsSearchRequest, import(".").IEsSearchResponse<any>>;
+        search: ISearchStart<import("./search").IEsSearchRequest, import("./search").IEsSearchResponse<any>>;
         fieldFormats: {
             fieldFormatServiceFactory: (uiSettings: import("../../../core/server").IUiSettingsClient) => Promise<import("../common").FieldFormatsRegistry>;
         };