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

3 files changed, 238 insertions, 399 deletions

diff --git a/webapp/utils/async_client.jsx b/webapp/utils/async_client.jsx
index 30bc474f8..24d540929 100644
--- a/webapp/utils/async_client.jsx
+++ b/webapp/utils/async_client.jsx
@@ -1,19 +1,21 @@
 // Copyright (c) 2015 Mattermost, Inc. All Rights Reserved.
 // See License.txt for license information.
 
-import $ from 'jquery';
-import Client from 'client/web_client.jsx';
-import * as GlobalActions from 'actions/global_actions.jsx';
-import AppDispatcher from '../dispatcher/app_dispatcher.jsx';
 import BrowserStore from 'stores/browser_store.jsx';
 import ChannelStore from 'stores/channel_store.jsx';
-import PostStore from 'stores/post_store.jsx';
 import UserStore from 'stores/user_store.jsx';
-import * as utils from './utils.jsx';
-import * as UserAgent from './user_agent.jsx';
+import TeamStore from 'stores/team_store.jsx';
 import ErrorStore from 'stores/error_store.jsx';
 
-import Constants from './constants.jsx';
+import * as GlobalActions from 'actions/global_actions.jsx';
+import {loadStatusesForProfilesMap} from 'actions/status_actions.jsx';
+
+import AppDispatcher from 'dispatcher/app_dispatcher.jsx';
+import Client from 'client/web_client.jsx';
+import * as utils from 'utils/utils.jsx';
+import * as UserAgent from 'utils/user_agent.jsx';
+
+import Constants from 'utils/constants.jsx';
 const ActionTypes = Constants.ActionTypes;
 const StatTypes = Constants.StatTypes;
 
@@ -215,94 +217,89 @@ export function getMoreChannels(force) {
     }
 }
 
-export function getChannelExtraInfo(id, memberLimit) {
-    let channelId;
-    if (id) {
-        channelId = id;
-    } else {
-        channelId = ChannelStore.getCurrentId();
+export function getChannelStats(channelId = ChannelStore.getCurrentId()) {
+    if (isCallInProgress('getChannelStats' + channelId)) {
+        return;
     }
 
-    if (channelId != null) {
-        if (isCallInProgress('getChannelExtraInfo_' + channelId)) {
-            return;
-        }
-
-        callTracker['getChannelExtraInfo_' + channelId] = utils.getTimestamp();
+    callTracker['getChannelStats' + channelId] = utils.getTimestamp();
 
-        Client.getChannelExtraInfo(
-            channelId,
-            memberLimit,
-            (data) => {
-                callTracker['getChannelExtraInfo_' + channelId] = 0;
+    Client.getChannelStats(
+        channelId,
+        (data) => {
+            callTracker['getChannelStats' + channelId] = 0;
 
-                AppDispatcher.handleServerAction({
-                    type: ActionTypes.RECEIVED_CHANNEL_EXTRA_INFO,
-                    extra_info: data
-                });
-            },
-            (err) => {
-                callTracker['getChannelExtraInfo_' + channelId] = 0;
-                dispatchError(err, 'getChannelExtraInfo');
-            }
-        );
-    }
+            AppDispatcher.handleServerAction({
+                type: ActionTypes.RECEIVED_CHANNEL_STATS,
+                stats: data
+            });
+        },
+        (err) => {
+            callTracker['getChannelStats' + channelId] = 0;
+            dispatchError(err, 'getChannelStats');
+        }
+    );
 }
 
-export function getTeamMembers(teamId) {
-    if (isCallInProgress('getTeamMembers')) {
+export function getChannelMember(channelId, userId) {
+    if (isCallInProgress(`getChannelMember${channelId}${userId}`)) {
         return;
     }
 
-    callTracker.getTeamMembers = utils.getTimestamp();
-    Client.getTeamMembers(
-        teamId,
+    callTracker[`getChannelMember${channelId}${userId}`] = utils.getTimestamp();
+
+    Client.getChannelMember(
+        channelId,
+        userId,
         (data) => {
-            callTracker.getTeamMembers = 0;
+            callTracker[`getChannelMember${channelId}${userId}`] = 0;
 
             AppDispatcher.handleServerAction({
-                type: ActionTypes.RECEIVED_MEMBERS_FOR_TEAM,
-                team_members: data
+                type: ActionTypes.RECEIVED_CHANNEL_MEMBER,
+                member: data
             });
         },
         (err) => {
-            callTracker.getTeamMembers = 0;
-            dispatchError(err, 'getTeamMembers');
+            callTracker[`getChannelMember${channelId}${userId}`] = 0;
+            dispatchError(err, 'getChannelMember');
         }
     );
 }
 
-export function getProfilesForDirectMessageList() {
-    if (isCallInProgress('getProfilesForDirectMessageList')) {
+export function getUser(userId) {
+    if (isCallInProgress(`getUser${userId}`)) {
         return;
     }
 
-    callTracker.getProfilesForDirectMessageList = utils.getTimestamp();
-    Client.getProfilesForDirectMessageList(
+    callTracker[`getUser${userId}`] = utils.getTimestamp();
+    Client.getUser(
+        userId,
         (data) => {
-            callTracker.getProfilesForDirectMessageList = 0;
+            callTracker[`getUser${userId}`] = 0;
 
             AppDispatcher.handleServerAction({
-                type: ActionTypes.RECEIVED_PROFILES_FOR_DM_LIST,
-                profiles: data
+                type: ActionTypes.RECEIVED_PROFILE,
+                profile: data
             });
         },
         (err) => {
-            callTracker.getProfilesForDirectMessageList = 0;
-            dispatchError(err, 'getProfilesForDirectMessageList');
+            callTracker[`getUser${userId}`] = 0;
+            dispatchError(err, 'getUser');
         }
     );
 }
 
-export function getProfiles() {
-    if (isCallInProgress('getProfiles')) {
+export function getProfiles(offset = UserStore.getPagingOffset(), limit = Constants.PROFILE_CHUNK_SIZE) {
+    if (isCallInProgress(`getProfiles${offset}${limit}`)) {
         return;
     }
 
-    callTracker.getProfiles = utils.getTimestamp();
+    callTracker[`getProfiles${offset}${limit}`] = utils.getTimestamp();
     Client.getProfiles(
+        offset,
+        limit,
         (data) => {
-            callTracker.getProfiles = 0;
+            callTracker[`getProfiles${offset}${limit}`] = 0;
 
             AppDispatcher.handleServerAction({
                 type: ActionTypes.RECEIVED_PROFILES,
@@ -310,30 +307,123 @@ export function getProfiles() {
             });
         },
         (err) => {
-            callTracker.getProfiles = 0;
+            callTracker[`getProfiles${offset}${limit}`] = 0;
             dispatchError(err, 'getProfiles');
         }
     );
 }
 
-export function getDirectProfiles() {
-    if (isCallInProgress('getDirectProfiles')) {
+export function getProfilesInTeam(teamId = TeamStore.getCurrentId(), offset = UserStore.getInTeamPagingOffset(), limit = Constants.PROFILE_CHUNK_SIZE) {
+    if (isCallInProgress(`getProfilesInTeam${offset}${limit}`)) {
+        return;
+    }
+
+    callTracker[`getProfilesInTeam${offset}${limit}`] = utils.getTimestamp();
+    Client.getProfilesInTeam(
+        teamId,
+        offset,
+        limit,
+        (data) => {
+            callTracker[`getProfilesInTeam${offset}${limit}`] = 0;
+
+            AppDispatcher.handleServerAction({
+                type: ActionTypes.RECEIVED_PROFILES_IN_TEAM,
+                profiles: data,
+                team_id: teamId,
+                offset,
+                count: Object.keys(data).length
+            });
+        },
+        (err) => {
+            callTracker[`getProfilesInTeam${offset}${limit}`] = 0;
+            dispatchError(err, 'getProfilesInTeam');
+        }
+    );
+}
+
+export function getProfilesInChannel(channelId = ChannelStore.getCurrentId(), offset = UserStore.getInChannelPagingOffset(), limit = Constants.PROFILE_CHUNK_SIZE) {
+    if (isCallInProgress(`getProfilesInChannel${offset}${limit}`)) {
+        return;
+    }
+
+    callTracker[`getProfilesInChannel${offset}${limit}`] = utils.getTimestamp();
+    Client.getProfilesInChannel(
+        channelId,
+        offset,
+        limit,
+        (data) => {
+            callTracker[`getProfilesInChannel${offset}${limit}`] = 0;
+
+            AppDispatcher.handleServerAction({
+                type: ActionTypes.RECEIVED_PROFILES_IN_CHANNEL,
+                channel_id: channelId,
+                profiles: data,
+                offset,
+                count: Object.keys(data).length
+            });
+
+            loadStatusesForProfilesMap(data);
+        },
+        (err) => {
+            callTracker[`getProfilesInChannel${offset}${limit}`] = 0;
+            dispatchError(err, 'getProfilesInChannel');
+        }
+    );
+}
+
+export function getProfilesNotInChannel(channelId = ChannelStore.getCurrentId(), offset = UserStore.getNotInChannelPagingOffset(), limit = Constants.PROFILE_CHUNK_SIZE) {
+    if (isCallInProgress(`getProfilesNotInChannel${offset}${limit}`)) {
+        return;
+    }
+
+    callTracker[`getProfilesNotInChannel${offset}${limit}`] = utils.getTimestamp();
+    Client.getProfilesNotInChannel(
+        channelId,
+        offset,
+        limit,
+        (data) => {
+            callTracker[`getProfilesNotInChannel${offset}${limit}`] = 0;
+
+            AppDispatcher.handleServerAction({
+                type: ActionTypes.RECEIVED_PROFILES_NOT_IN_CHANNEL,
+                channel_id: channelId,
+                profiles: data,
+                offset,
+                count: Object.keys(data).length
+            });
+
+            loadStatusesForProfilesMap(data);
+        },
+        (err) => {
+            callTracker[`getProfilesNotInChannel${offset}${limit}`] = 0;
+            dispatchError(err, 'getProfilesNotInChannel');
+        }
+    );
+}
+
+export function getProfilesByIds(userIds) {
+    if (isCallInProgress('getProfilesByIds')) {
         return;
     }
 
-    callTracker.getDirectProfiles = utils.getTimestamp();
-    Client.getDirectProfiles(
+    if (!userIds || userIds.length === 0) {
+        return;
+    }
+
+    callTracker.getProfilesByIds = utils.getTimestamp();
+    Client.getProfilesByIds(
+        userIds,
         (data) => {
-            callTracker.getDirectProfiles = 0;
+            callTracker.getProfilesByIds = 0;
 
             AppDispatcher.handleServerAction({
-                type: ActionTypes.RECEIVED_DIRECT_PROFILES,
+                type: ActionTypes.RECEIVED_PROFILES,
                 profiles: data
             });
         },
         (err) => {
-            callTracker.getDirectProfiles = 0;
-            dispatchError(err, 'getDirectProfiles');
+            callTracker.getProfilesByIds = 0;
+            dispatchError(err, 'getProfilesByIds');
         }
     );
 }
@@ -548,173 +638,6 @@ export function search(terms, isOrSearch) {
     );
 }
 
-export function getPostsPage(id, maxPosts) {
-    let channelId = id;
-    if (channelId == null) {
-        channelId = ChannelStore.getCurrentId();
-        if (channelId == null) {
-            return;
-        }
-    }
-
-    if (isCallInProgress('getPostsPage_' + channelId)) {
-        return;
-    }
-
-    var postList = PostStore.getAllPosts(id);
-
-    var max = maxPosts;
-    if (max == null) {
-        max = Constants.POST_CHUNK_SIZE * Constants.MAX_POST_CHUNKS;
-    }
-
-    // if we already have more than POST_CHUNK_SIZE posts,
-    //   let's get the amount we have but rounded up to next multiple of POST_CHUNK_SIZE,
-    //   with a max at maxPosts
-    var numPosts = Math.min(max, Constants.POST_CHUNK_SIZE);
-    if (postList && postList.order.length > 0) {
-        numPosts = Math.min(max, Constants.POST_CHUNK_SIZE * Math.ceil(postList.order.length / Constants.POST_CHUNK_SIZE));
-    }
-
-    if (channelId != null) {
-        callTracker['getPostsPage_' + channelId] = utils.getTimestamp();
-
-        Client.getPostsPage(
-            channelId,
-            0,
-            numPosts,
-            (data) => {
-                AppDispatcher.handleServerAction({
-                    type: ActionTypes.RECEIVED_POSTS,
-                    id: channelId,
-                    before: true,
-                    numRequested: numPosts,
-                    checkLatest: true,
-                    post_list: data
-                });
-            },
-            (err) => {
-                dispatchError(err, 'getPostsPage');
-            },
-            () => {
-                callTracker['getPostsPage_' + channelId] = 0;
-            }
-        );
-    }
-}
-
-export function getPosts(id) {
-    let channelId = id;
-    if (channelId == null) {
-        channelId = ChannelStore.getCurrentId();
-        if (channelId == null) {
-            return;
-        }
-    }
-
-    if (isCallInProgress('getPosts_' + channelId)) {
-        return;
-    }
-
-    const postList = PostStore.getAllPosts(channelId);
-    const latestPostTime = PostStore.getLatestPostFromPageTime(id);
-
-    if ($.isEmptyObject(postList) || postList.order.length < Constants.POST_CHUNK_SIZE || latestPostTime === 0) {
-        getPostsPage(channelId, Constants.POST_CHUNK_SIZE);
-        return;
-    }
-
-    callTracker['getPosts_' + channelId] = utils.getTimestamp();
-
-    Client.getPosts(
-        channelId,
-        latestPostTime,
-        (data) => {
-            AppDispatcher.handleServerAction({
-                type: ActionTypes.RECEIVED_POSTS,
-                id: channelId,
-                before: true,
-                numRequested: 0,
-                post_list: data
-            });
-        },
-        (err) => {
-            dispatchError(err, 'getPosts');
-        },
-        () => {
-            callTracker['getPosts_' + channelId] = 0;
-        }
-    );
-}
-
-export function getPostsBefore(postId, offset, numPost, isPost) {
-    const channelId = ChannelStore.getCurrentId();
-    if (channelId == null) {
-        return;
-    }
-
-    if (isCallInProgress('getPostsBefore_' + channelId)) {
-        return;
-    }
-
-    Client.getPostsBefore(
-        channelId,
-        postId,
-        offset,
-        numPost,
-        (data) => {
-            AppDispatcher.handleServerAction({
-                type: ActionTypes.RECEIVED_POSTS,
-                id: channelId,
-                before: true,
-                numRequested: numPost,
-                post_list: data,
-                isPost
-            });
-        },
-        (err) => {
-            dispatchError(err, 'getPostsBefore');
-        },
-        () => {
-            callTracker['getPostsBefore_' + channelId] = 0;
-        }
-    );
-}
-
-export function getPostsAfter(postId, offset, numPost, isPost) {
-    const channelId = ChannelStore.getCurrentId();
-    if (channelId == null) {
-        return;
-    }
-
-    if (isCallInProgress('getPostsAfter_' + channelId)) {
-        return;
-    }
-
-    Client.getPostsAfter(
-        channelId,
-        postId,
-        offset,
-        numPost,
-        (data) => {
-            AppDispatcher.handleServerAction({
-                type: ActionTypes.RECEIVED_POSTS,
-                id: channelId,
-                before: false,
-                numRequested: numPost,
-                post_list: data,
-                isPost
-            });
-        },
-        (err) => {
-            dispatchError(err, 'getPostsAfter');
-        },
-        () => {
-            callTracker['getPostsAfter_' + channelId] = 0;
-        }
-    );
-}
-
 export function getFileInfosForPost(channelId, postId) {
     const callName = 'getFileInfosForPost' + postId;
 
@@ -828,6 +751,58 @@ export function getMyTeam() {
     );
 }
 
+export function getTeamMember(teamId, userId) {
+    const callName = `getTeamMember${teamId}${userId}`;
+    if (isCallInProgress(callName)) {
+        return;
+    }
+
+    callTracker[callName] = utils.getTimestamp();
+    Client.getTeamMember(
+        (data) => {
+            callTracker[callName] = 0;
+
+            const memberMap = {};
+            memberMap[userId] = data;
+
+            AppDispatcher.handleServerAction({
+                type: ActionTypes.RECEIVED_MEMBERS_IN_TEAM,
+                team_id: teamId,
+                team_members: memberMap
+            });
+        },
+        (err) => {
+            callTracker[callName] = 0;
+            dispatchError(err, 'getTeamMember');
+        }
+    );
+}
+
+export function getTeamStats(teamId) {
+    const callName = `getTeamStats${teamId}`;
+    if (isCallInProgress(callName)) {
+        return;
+    }
+
+    callTracker[callName] = utils.getTimestamp();
+    Client.getTeamStats(
+        teamId,
+        (data) => {
+            callTracker[callName] = 0;
+
+            AppDispatcher.handleServerAction({
+                type: ActionTypes.RECEIVED_TEAM_STATS,
+                team_id: teamId,
+                stats: data
+            });
+        },
+        (err) => {
+            callTracker[callName] = 0;
+            dispatchError(err, 'getTeamStats');
+        }
+    );
+}
+
 export function getAllPreferences() {
     if (isCallInProgress('getAllPreferences')) {
         return;
@@ -987,6 +962,18 @@ export function getStandardAnalytics(teamId) {
                 if (data[index].name === 'team_count' && teamId == null) {
                     stats[StatTypes.TOTAL_TEAMS] = data[index].value;
                 }
+
+                if (data[index].name === 'total_websocket_connections') {
+                    stats[StatTypes.TOTAL_WEBSOCKET_CONNECTIONS] = data[index].value;
+                }
+
+                if (data[index].name === 'total_master_db_connections') {
+                    stats[StatTypes.TOTAL_MASTER_DB_CONNECTIONS] = data[index].value;
+                }
+
+                if (data[index].name === 'total_read_db_connections') {
+                    stats[StatTypes.TOTAL_READ_DB_CONNECTIONS] = data[index].value;
+                }
             }
 
             AppDispatcher.handleServerAction({
@@ -1212,54 +1199,6 @@ export function getRecentAndNewUsersAnalytics(teamId) {
     );
 }
 
-export function listIncomingHooks() {
-    if (isCallInProgress('listIncomingHooks')) {
-        return;
-    }
-
-    callTracker.listIncomingHooks = utils.getTimestamp();
-
-    Client.listIncomingHooks(
-        (data) => {
-            callTracker.listIncomingHooks = 0;
-
-            AppDispatcher.handleServerAction({
-                type: ActionTypes.RECEIVED_INCOMING_WEBHOOKS,
-                teamId: Client.teamId,
-                incomingWebhooks: data
-            });
-        },
-        (err) => {
-            callTracker.listIncomingHooks = 0;
-            dispatchError(err, 'getIncomingHooks');
-        }
-    );
-}
-
-export function listOutgoingHooks() {
-    if (isCallInProgress('listOutgoingHooks')) {
-        return;
-    }
-
-    callTracker.listOutgoingHooks = utils.getTimestamp();
-
-    Client.listOutgoingHooks(
-        (data) => {
-            callTracker.listOutgoingHooks = 0;
-
-            AppDispatcher.handleServerAction({
-                type: ActionTypes.RECEIVED_OUTGOING_WEBHOOKS,
-                teamId: Client.teamId,
-                outgoingWebhooks: data
-            });
-        },
-        (err) => {
-            callTracker.listOutgoingHooks = 0;
-            dispatchError(err, 'getOutgoingHooks');
-        }
-    );
-}
-
 export function addIncomingHook(hook, success, error) {
     Client.addIncomingHook(
         hook,
@@ -1353,30 +1292,6 @@ export function regenOutgoingHookToken(id) {
     );
 }
 
-export function listTeamCommands() {
-    if (isCallInProgress('listTeamCommands')) {
-        return;
-    }
-
-    callTracker.listTeamCommands = utils.getTimestamp();
-
-    Client.listTeamCommands(
-        (data) => {
-            callTracker.listTeamCommands = 0;
-
-            AppDispatcher.handleServerAction({
-                type: ActionTypes.RECEIVED_COMMANDS,
-                teamId: Client.teamId,
-                commands: data
-            });
-        },
-        (err) => {
-            callTracker.listTeamCommands = 0;
-            dispatchError(err, 'listTeamCommands');
-        }
-    );
-}
-
 export function addCommand(command, success, error) {
     Client.addCommand(
         command,
@@ -1459,29 +1374,6 @@ export function getPublicLink(fileId, success, error) {
     );
 }
 
-export function listEmoji() {
-    if (isCallInProgress('listEmoji')) {
-        return;
-    }
-
-    callTracker.listEmoji = utils.getTimestamp();
-
-    Client.listEmoji(
-        (data) => {
-            callTracker.listEmoji = 0;
-
-            AppDispatcher.handleServerAction({
-                type: ActionTypes.RECEIVED_CUSTOM_EMOJIS,
-                emojis: data
-            });
-        },
-        (err) => {
-            callTracker.listEmoji = 0;
-            dispatchError(err, 'listEmoji');
-        }
-    );
-}
-
 export function addEmoji(emoji, image, success, error) {
     const callName = 'addEmoji' + emoji.name;
 
diff --git a/webapp/utils/constants.jsx b/webapp/utils/constants.jsx
index 10f1a2879..83d64358c 100644
--- a/webapp/utils/constants.jsx
+++ b/webapp/utils/constants.jsx
@@ -71,7 +71,7 @@ export const ActionTypes = keyMirror({
     RECEIVED_CHANNELS: null,
     RECEIVED_CHANNEL: null,
     RECEIVED_MORE_CHANNELS: null,
-    RECEIVED_CHANNEL_EXTRA_INFO: null,
+    RECEIVED_CHANNEL_STATS: null,
 
     FOCUS_POST: null,
     RECEIVED_POSTS: null,
@@ -84,9 +84,11 @@ export const ActionTypes = keyMirror({
     RECEIVED_MENTION_DATA: null,
     RECEIVED_ADD_MENTION: null,
 
-    RECEIVED_PROFILES_FOR_DM_LIST: null,
     RECEIVED_PROFILES: null,
-    RECEIVED_DIRECT_PROFILES: null,
+    RECEIVED_PROFILES_IN_TEAM: null,
+    RECEIVED_PROFILE: null,
+    RECEIVED_PROFILES_IN_CHANNEL: null,
+    RECEIVED_PROFILE_NOT_IN_CHANNEL: null,
     RECEIVED_ME: null,
     RECEIVED_SESSIONS: null,
     RECEIVED_AUDITS: null,
@@ -129,8 +131,9 @@ export const ActionTypes = keyMirror({
     RECEIVED_SERVER_COMPLIANCE_REPORTS: null,
     RECEIVED_ALL_TEAMS: null,
     RECEIVED_ALL_TEAM_LISTINGS: null,
-    RECEIVED_TEAM_MEMBERS: null,
-    RECEIVED_MEMBERS_FOR_TEAM: null,
+    RECEIVED_MY_TEAM_MEMBERS: null,
+    RECEIVED_MEMBERS_IN_TEAM: null,
+    RECEIVED_TEAM_STATS: null,
 
     RECEIVED_LOCALE: null,
 
@@ -232,7 +235,10 @@ export const Constants = {
         POST_PER_DAY: null,
         USERS_WITH_POSTS_PER_DAY: null,
         RECENTLY_ACTIVE_USERS: null,
-        NEWLY_CREATED_USERS: null
+        NEWLY_CREATED_USERS: null,
+        TOTAL_WEBSOCKET_CONNECTIONS: null,
+        TOTAL_MASTER_DB_CONNECTIONS: null,
+        TOTAL_READ_DB_CONNECTIONS: null
     }),
     STAT_MAX_ACTIVE_USERS: 20,
     STAT_MAX_NEW_USERS: 20,
@@ -313,7 +319,7 @@ export const Constants = {
     SIGNIN_VERIFIED: 'verified',
     SESSION_EXPIRED: 'expired',
     POST_CHUNK_SIZE: 60,
-    MAX_POST_CHUNKS: 3,
+    PROFILE_CHUNK_SIZE: 100,
     POST_FOCUS_CONTEXT_RADIUS: 10,
     POST_LOADING: 'loading',
     POST_FAILED: 'failed',
@@ -843,7 +849,9 @@ export const Constants = {
     MENTION_MEMBERS: 'mention.members',
     MENTION_NONMEMBERS: 'mention.nonmembers',
     MENTION_SPECIAL: 'mention.special',
-    DEFAULT_NOTIFICATION_DURATION: 5000
+    DEFAULT_NOTIFICATION_DURATION: 5000,
+    STATUS_INTERVAL: 60000,
+    AUTOCOMPLETE_TIMEOUT: 200
 };
 
 export default Constants;
diff --git a/webapp/utils/utils.jsx b/webapp/utils/utils.jsx
index 10a59c25c..fcfec3592 100644
--- a/webapp/utils/utils.jsx
+++ b/webapp/utils/utils.jsx
@@ -10,7 +10,6 @@ import PreferenceStore from 'stores/preference_store.jsx';
 import TeamStore from 'stores/team_store.jsx';
 import Constants from 'utils/constants.jsx';
 var ActionTypes = Constants.ActionTypes;
-import * as AsyncClient from './async_client.jsx';
 import Client from 'client/web_client.jsx';
 import * as UserAgent from 'utils/user_agent.jsx';
 
@@ -1074,66 +1073,6 @@ export function windowHeight() {
     return $(window).height();
 }
 
-export function openDirectChannelToUser(user, successCb, errorCb) {
-    AsyncClient.savePreference(
-        Constants.Preferences.CATEGORY_DIRECT_CHANNEL_SHOW,
-        user.id,
-        'true'
-    );
-
-    // if the user in another team and isn't already in the direct message
-    // list then we should add him so his name shows up correctly.
-    var profileUser = UserStore.getProfile(user.id);
-    if (!profileUser) {
-        UserStore.getDirectProfiles()[user.id] = user;
-    }
-
-    const channelName = this.getDirectChannelName(UserStore.getCurrentId(), user.id);
-    let channel = ChannelStore.getByName(channelName);
-
-    if (channel) {
-        if ($.isFunction(successCb)) {
-            successCb(channel, true);
-        }
-    } else {
-        channel = {
-            name: channelName,
-            last_post_at: 0,
-            total_msg_count: 0,
-            type: 'D',
-            display_name: user.username,
-            teammate_id: user.id,
-            status: UserStore.getStatus(user.id)
-        };
-
-        Client.createDirectChannel(
-            user.id,
-            (data) => {
-                Client.getChannel(
-                    data.id,
-                    (data2) => {
-                        AppDispatcher.handleServerAction({
-                            type: ActionTypes.RECEIVED_CHANNEL,
-                            channel: data2.channel,
-                            member: data2.member
-                        });
-
-                        if ($.isFunction(successCb)) {
-                            successCb(data2.channel, false);
-                        }
-                    }
-                );
-            },
-            () => {
-                browserHistory.push(TeamStore.getCurrentTeamUrl() + '/channels/' + channelName);
-                if ($.isFunction(errorCb)) {
-                    errorCb();
-                }
-            }
-        );
-    }
-}
-
 // Use when sorting multiple channels or teams by their `display_name` field
 export function sortByDisplayName(a, b) {
     let aDisplayName = '';