Merging performance branch into master (#4268)

* improve performance on sendNotifications

* Fix SQL queries

* Remove get direct profiles, not needed anymore

* Add raw data to error details if AppError fails to decode

* men

* Fix decode (#4052)

* Fixing json decode

* Adding unit test

* Initial work for client scaling (#4051)

* Begin adding paging to profiles API

* Added more paging functionality

* Finish hooking up admin console user lists

* Add API for searching users and add searching to all user lists

* Add lazy loading of profiles

* Revert config.json

* Fix unit tests and some style issues

* Add GetProfilesFromList to Go driver and fix web unit test

* Update etag for GetProfiles

* Updating ui for filters and pagination (#4044)

* Updating UI for pagination

* Adjusting margins for filter row

* Adjusting margin for specific modals

* Adding relative padding to system console

* Adjusting responsive view

* Update client user tests

* Minor fixes for direct messages modal (#4056)

* Remove some unneeded initial load calls (#4057)

* UX updates to user lists, added smart counts and bug fixes (#4059)

* Improved getExplicitMentions and unit tests (#4064)

* Refactor getting posts to lazy load profiles correctly (#4062)

* Comment out SetActiveChannel test (#4066)

* Profiler cpu, block, and memory profiler. (#4081)

* Fix TestSetActiveChannel unit test (#4071)

* Fixing build failure caused by dependancies updating (#4076)

* Adding profiler

* Fix admin_team_member_dropdown eslint errors

* Bumping session cache size (#4077)

* Bumping session cache size

* Bumping status cache

* Refactor how the client handles channel members to be large team friendly (#4106)

* Refactor how the client handles channel members to be large team friendly

* Change Id to ChannelId in ChannelStats model

* Updated getChannelMember and getProfilesByIds routes to match proposal

* Performance improvements (#4100)

* Performance improvements

* Fixing re-connect issue

* Fixing error message

* Some other minor perf tweaks

* Some other minor perf tweaks

* Fixing config file

* Fixing buffer size

* Fixing web socket send message

* adding some error logging

* fix getMe to be user required

* Fix websocket event for new user

* Fixing shutting down

* Reverting web socket changes

* Fixing logging lvl

* Adding caching to GetMember

* Adding some logging

* Fixing caching

* Fixing caching invalidate

* Fixing direct message caching

* Fixing caching

* Fixing caching

* Remove GetDirectProfiles from initial load

* Adding logging and fixing websocket client

* Adding back caching from bad merge.

* Explicitly close go driver requests (#4162)

* Refactored how the client handles team members to be more large team friendly (#4159)

* Refactor getProfilesForDirectMessageList API into getAllProfiles API

* Refactored how the client handles team members to be more large team friendly

* Fix js error when receiving a notification

* Fix JS error caused by current user being overwritten with sanitized version (#4165)

* Adding error message to status failure (#4167)

* Fix a few bugs caused by client scaling refactoring (#4170)

* When there is no read replica, don't open a second set of connections to the master database (#4173)

* Adding connection tacking to stats (#4174)

* Reduce DB writes for statuses and other status related changes (#4175)

* Fix bug preventing opening of DM channels from more modal (#4181)

* 	Fixing socket timing error (#4183)

* Fixing ping/pong handler

* Fixing socket timing error

* Commenting out status broadcasting

* Removing user status changes

* Removing user status changes

* Removing user status changes

* Removing user status changes

* Adding DoPreComputeJson()

* Performance improvements (#4194)

* * Fix System Console Analytics queries
* Add db.SetConnMaxLifetime to 15 minutes
* Add "net/http/pprof" for profiling
* Add FreeOSMemory() to manually release memory on reload config

* Add flag to enable http profiler

* Fix memory leak (#4197)

* Fix memory leak

* removed unneeded nil assignment

* Fixing go routine leak (#4208)

* Merge fixes

* Merge fix

* Refactored statuses to be queried by the client rather than broadcast by the server (#4212)

* Refactored server code to reduce status broadcasts and to allow getting statuses by IDs

* Refactor client code to periodically fetch statuses

* Add store unit test for getting statuses by ids

* Fix status unit test

* Add getStatusesByIds REST API and move the client over to use that instead of the WebSocket

* Adding multiple threads to websocket hub (#4230)

* Adding multiple threads to websocket hub

* Fixing unit tests

* Fixing so websocket connections from the same user end up in the same… (#4240)

* Fixing so websocket connections from the same user end up in the same list

* Removing old comment

* Refactor user autocomplete to query the server (#4239)

* Add API for autocompleting users

* Converted at mention autocomplete to query server

* Converted user search autocomplete to query server

* Switch autocomplete API naming to use term instead of username

* Split autocomplete API into two, one for channels and for teams

* Fix copy/paste error

* Some final client scaling fixes (#4246)

* Add lazy loading of profiles to integration pages

* Add lazy loading of profiles to emoji page

* Fix JS error when receiving post in select team menu and also clean up channel store

api/admin.go

@@ -20,6 +20,7 @@ import (
 	"github.com/mattermost/platform/store"
 	"github.com/mattermost/platform/utils"
 	"github.com/mssola/user_agent"
+	"runtime/debug"
 )
 
 func InitAdmin() {
@@ -48,7 +49,7 @@ func InitAdmin() {
 	BaseRoutes.Admin.Handle("/remove_certificate", ApiAdminSystemRequired(removeCertificate)).Methods("POST")
 	BaseRoutes.Admin.Handle("/saml_cert_status", ApiAdminSystemRequired(samlCertificateStatus)).Methods("GET")
 	BaseRoutes.Admin.Handle("/cluster_status", ApiAdminSystemRequired(getClusterStatus)).Methods("GET")
-	BaseRoutes.Admin.Handle("/recently_active_users/{team_id:[A-Za-z0-9]+}", ApiUserRequiredActivity(getRecentlyActiveUsers, false)).Methods("GET")
+	BaseRoutes.Admin.Handle("/recently_active_users/{team_id:[A-Za-z0-9]+}", ApiUserRequired(getRecentlyActiveUsers)).Methods("GET")
 }
 
 func getLogs(c *Context, w http.ResponseWriter, r *http.Request) {
@@ -134,6 +135,7 @@ func getConfig(c *Context, w http.ResponseWriter, r *http.Request) {
 }
 
 func reloadConfig(c *Context, w http.ResponseWriter, r *http.Request) {
+	debug.FreeOSMemory()
 	utils.LoadConfig(utils.CfgFileName)
 
 	// start/restart email batching job if necessary
@@ -338,12 +340,15 @@ func getAnalytics(c *Context, w http.ResponseWriter, r *http.Request) {
 	name := params["name"]
 
 	if name == "standard" {
-		var rows model.AnalyticsRows = make([]*model.AnalyticsRow, 5)
+		var rows model.AnalyticsRows = make([]*model.AnalyticsRow, 8)
 		rows[0] = &model.AnalyticsRow{"channel_open_count", 0}
 		rows[1] = &model.AnalyticsRow{"channel_private_count", 0}
 		rows[2] = &model.AnalyticsRow{"post_count", 0}
 		rows[3] = &model.AnalyticsRow{"unique_user_count", 0}
 		rows[4] = &model.AnalyticsRow{"team_count", 0}
+		rows[5] = &model.AnalyticsRow{"total_websocket_connections", 0}
+		rows[6] = &model.AnalyticsRow{"total_master_db_connections", 0}
+		rows[7] = &model.AnalyticsRow{"total_read_db_connections", 0}
 
 		openChan := Srv.Store.Channel().AnalyticsTypeCount(teamId, model.CHANNEL_OPEN)
 		privateChan := Srv.Store.Channel().AnalyticsTypeCount(teamId, model.CHANNEL_PRIVATE)
@@ -386,6 +391,10 @@ func getAnalytics(c *Context, w http.ResponseWriter, r *http.Request) {
 			rows[4].Value = float64(r.Data.(int64))
 		}
 
+		rows[5].Value = float64(TotalWebsocketConnections())
+		rows[6].Value = float64(Srv.Store.TotalMasterDbConnections())
+		rows[7].Value = float64(Srv.Store.TotalReadDbConnections())
+
 		w.Write([]byte(rows.ToJson()))
 	} else if name == "post_counts_day" {
 		if r := <-Srv.Store.Post().AnalyticsPostCountsByDay(teamId); r.Err != nil {
@@ -706,32 +715,14 @@ func samlCertificateStatus(c *Context, w http.ResponseWriter, r *http.Request) {
 }
 
 func getRecentlyActiveUsers(c *Context, w http.ResponseWriter, r *http.Request) {
-	statusMap := map[string]interface{}{}
-
-	if result := <-Srv.Store.Status().GetAllFromTeam(c.TeamId); result.Err != nil {
-		c.Err = result.Err
-		return
-	} else {
-		statuses := result.Data.([]*model.Status)
-		for _, s := range statuses {
-			statusMap[s.UserId] = s.LastActivityAt
-		}
-	}
-
-	if result := <-Srv.Store.User().GetProfiles(c.TeamId); result.Err != nil {
+	if result := <-Srv.Store.User().GetRecentlyActiveUsersForTeam(c.TeamId); result.Err != nil {
 		c.Err = result.Err
 		return
 	} else {
 		profiles := result.Data.(map[string]*model.User)
 
-		for k, p := range profiles {
-			p = sanitizeProfile(c, p)
-
-			if lastActivityAt, ok := statusMap[p.Id].(int64); ok {
-				p.LastActivityAt = lastActivityAt
-			}
-
-			profiles[k] = p
+		for _, p := range profiles {
+			sanitizeProfile(c, p)
 		}
 
 		w.Write([]byte(model.UserMapToJson(profiles)))