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/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
var App = require('app');
var numberUtils = require('utils/number_utils');
App.WizardStep5Controller = Em.Controller.extend({
name:"wizardStep5Controller",
title: function () {
if (this.get('content.controllerName') == 'reassignMasterController') {
return Em.I18n.t('installer.step5.reassign.header');
}
return Em.I18n.t('installer.step5.header');
}.property('content.controllerName'),
isReassignWizard: function () {
return this.get('content.controllerName') == 'reassignMasterController';
}.property('content.controllerName'),
isReassignHive: function () {
return this.get('servicesMasters').objectAt(0) && this.get('servicesMasters').objectAt(0).component_name == 'HIVE_SERVER' && this.get('isReassignWizard');
}.property('isReassignWizard', 'servicesMasters'),
/**
* Define state for submit button. Return true only for Reassign Master Wizard and if more than one master component was reassigned.
*/
isSubmitDisabled: function () {
if (!this.get('isReassignWizard')) {
return false;
}
var reassigned = 0;
var arr1 = App.HostComponent.find().filterProperty('componentName', this.get('content.reassign.component_name')).mapProperty('host.hostName');
var arr2 = this.get('servicesMasters').mapProperty('selectedHost');
arr1.forEach(function (host) {
if (!arr2.contains(host)) {
reassigned++;
}
}, this);
return reassigned !== 1;
}.property('servicesMasters.@each.selectedHost'),
hosts:[],
isLazyLoading: false,
servicesMasters:[],
selectedServicesMasters:[],
components:require('data/service_components'),
clearStep:function () {
this.set('hosts', []);
this.set('selectedServicesMasters', []);
this.set('servicesMasters', []);
},
loadStep:function () {
console.log("WizardStep5Controller: Loading step5: Assign Masters");
this.clearStep();
this.renderHostInfo();
this.renderComponents(this.loadComponents());
this.updateComponent('ZOOKEEPER_SERVER');
if(App.supports.multipleHBaseMasters){
this.updateComponent('HBASE_MASTER');
}
if (!this.get("selectedServicesMasters").filterProperty('isInstalled', false).length) {
console.log('no master components to add');
App.router.send('next');
}
},
/**
* Used to set showAddControl flag for ZOOKEEPER_SERVER and HBASE_SERVER
*/
updateComponent: function(componentName){
var component = this.last(componentName);
var services = this.get('content.services').filterProperty('isInstalled', true).mapProperty('serviceName');
var currentService = componentName.split('_')[0];
var showControl = !services.contains(currentService);
if (component) {
if(showControl){
if (this.get("selectedServicesMasters").filterProperty("component_name", componentName).length < this.get("hosts.length") && !this.get('isReassignWizard')) {
component.set('showAddControl', true);
} else {
component.set('showRemoveControl', false);
}
}
this.rebalanceComponentHosts(componentName);
}
},
/**
* Load active host list to <code>hosts</code> variable
*/
renderHostInfo:function () {
var hostInfo = this.get('content.hosts');
var result = [];
for (var index in hostInfo) {
var _host = hostInfo[index];
if (_host.bootStatus === 'REGISTERED') {
result.push(Ember.Object.create({
host_name:_host.name,
cpu:_host.cpu,
memory:_host.memory,
disk_info:_host.disk_info,
host_info: Em.I18n.t('installer.step5.hostInfo').fmt(_host.name, numberUtils.bytesToSize(_host.memory, 1, 'parseFloat', 1024), _host.cpu)
}));
}
}
this.set("hosts", result);
this.sortHosts(this.get('hosts'));
},
sortHosts: function (hosts) {
hosts.sort(function (a, b) {
if (a.get('memory') == b.get('memory')) {
if (a.get('cpu') == b.get('cpu')) {
return a.get('host_name').localeCompare(b.get('host_name')); // hostname asc
}
return b.get('cpu') - a.get('cpu'); // cores desc
}
return b.get('memory') - a.get('memory'); // ram desc
});
},
/**
* Load services info to appropriate variable and return masterComponentHosts
* @return Array
*/
loadComponents:function () {
var services = this.get('content.services')
.filterProperty('isSelected', true).mapProperty('serviceName'); //list of shown services
var masterComponents = this.get('components').filterProperty('isMaster', true); //get full list from mock data
var masterHosts = this.get('content.masterComponentHosts'); //saved to local storage info
var resultComponents = [];
var servicesLength = services.length;
for (var index = 0; index < servicesLength; index++) {
var componentInfo = masterComponents.filterProperty('service_name', services[index]);
componentInfo.forEach(function (_componentInfo) {
if (_componentInfo.component_name == 'ZOOKEEPER_SERVER' || _componentInfo.component_name == 'HBASE_MASTER') {
var savedComponents = masterHosts.filterProperty('component', _componentInfo.component_name);
if (savedComponents.length) {
savedComponents.forEach(function (item) {
var zooKeeperHost = {};
zooKeeperHost.display_name = _componentInfo.display_name;
zooKeeperHost.component_name = _componentInfo.component_name;
zooKeeperHost.selectedHost = item.hostName;
zooKeeperHost.availableHosts = [];
zooKeeperHost.serviceId = services[index];
zooKeeperHost.isInstalled = item.isInstalled;
zooKeeperHost.isHiveCoHost = false;
resultComponents.push(zooKeeperHost);
})
} else {
var zooHosts = this.selectHost(_componentInfo.component_name);
zooHosts.forEach(function (_host) {
var zooKeeperHost = {};
zooKeeperHost.display_name = _componentInfo.display_name;
zooKeeperHost.component_name = _componentInfo.component_name;
zooKeeperHost.selectedHost = _host;
zooKeeperHost.availableHosts = [];
zooKeeperHost.serviceId = services[index];
zooKeeperHost.isInstalled = false;
zooKeeperHost.isHiveCoHost = false;
resultComponents.push(zooKeeperHost);
});
}
} else {
var savedComponent = masterHosts.findProperty('component', _componentInfo.component_name);
var componentObj = {};
componentObj.component_name = _componentInfo.component_name;
componentObj.display_name = _componentInfo.display_name;
componentObj.selectedHost = savedComponent ? savedComponent.hostName : this.selectHost(_componentInfo.component_name); // call the method that plays selectNode algorithm or fetches from server
componentObj.isInstalled = savedComponent ? savedComponent.isInstalled : App.HostComponent.find().someProperty('componentName', _componentInfo.component_name);
componentObj.serviceId = services[index];
componentObj.availableHosts = [];
componentObj.isHiveCoHost = ['HIVE_METASTORE', 'WEBHCAT_SERVER'].contains(_componentInfo.component_name) && !this.get('isReassignWizard');
resultComponents.push(componentObj);
}
}, this);
}
return resultComponents;
},
/**
* Put master components to <code>selectedServicesMasters</code>, which will be automatically rendered in template
* @param masterComponents
*/
renderComponents:function (masterComponents) {
var services = this.get('content.services')
.filterProperty('isInstalled', true).mapProperty('serviceName'); //list of shown services
var hosts = this.get('hosts');
//The lazy loading for select elements supported only by Firefox and Chrome
var isBrowserSupported = $.browser.mozilla || ($.browser.safari && navigator.userAgent.indexOf('Chrome') !== -1);
var isLazyLoading = isBrowserSupported && hosts.length > 100;
var showRemoveControlZk = !services.contains('ZOOKEEPER') && masterComponents.filterProperty('display_name', 'ZooKeeper').length > 1;
var showRemoveControlHb = !services.contains('HBASE') && masterComponents.filterProperty('component_name', 'HBASE_MASTER').length > 1;
var zid = 1;
var hid = 1;
var nid = 1;
var result = [];
this.set('isLazyLoading', isLazyLoading);
masterComponents.forEach(function (item) {
var componentObj = Ember.Object.create(item);
console.log("TRACE: render master component name is: " + item.component_name);
if (item.display_name === "ZooKeeper") {
componentObj.set('zId', zid++);
componentObj.set("showRemoveControl", showRemoveControlZk);
} else if (App.supports.multipleHBaseMasters && item.component_name === "HBASE_MASTER") {
componentObj.set('zId', hid++);
componentObj.set("showRemoveControl", showRemoveControlHb);
} else if (item.component_name === "NAMENODE") {
componentObj.set('zId', nid++);
}
if(isLazyLoading){
//select need at least 30 hosts to have scrollbar
var initialHosts = hosts.slice(0, 30);
if(!initialHosts.someProperty('host_name', item.selectedHost)){
initialHosts.push(hosts.findProperty('host_name', item.selectedHost));
}
componentObj.set("availableHosts", initialHosts);
} else {
componentObj.set("availableHosts", hosts);
}
result.push(componentObj);
}, this);
this.set("selectedServicesMasters", result);
if (this.get('isReassignWizard')) {
var components = result.filterProperty('component_name', this.get('content.reassign.component_name'));
components.setEach('isInstalled', false);
this.set('servicesMasters', components);
} else {
this.set('servicesMasters', result);
}
},
hasHiveServer: function () {
return !!this.get('selectedServicesMasters').findProperty('component_name', 'HIVE_SERVER') && !this.get('isReassignWizard');
}.property('selectedServicesMasters'),
updateHiveCoHosts: function () {
var hiveServer = this.get('selectedServicesMasters').findProperty('component_name', 'HIVE_SERVER');
var hiveMetastore = this.get('selectedServicesMasters').findProperty('component_name', 'HIVE_METASTORE');
var webHCatServer = this.get('selectedServicesMasters').findProperty('component_name', 'WEBHCAT_SERVER');
if (hiveServer && hiveMetastore && webHCatServer) {
if (!this.get('isReassignHive') && this.get('servicesMasters').objectAt(0) && !(this.get('servicesMasters').objectAt(0).component_name == 'HIVE_METASTORE')) {
this.get('selectedServicesMasters').findProperty('component_name', 'HIVE_METASTORE').set('selectedHost', hiveServer.get('selectedHost'))
}
this.get('selectedServicesMasters').findProperty('component_name', 'WEBHCAT_SERVER').set('selectedHost', hiveServer.get('selectedHost'));
}
}.observes('selectedServicesMasters.@each.selectedHost'),
/**
* select and return host for component by scheme
* Scheme is an object that has keys which compared to number of hosts,
* if key more that number of hosts, then return value of that key.
* Value is index of host in hosts array.
*
* @param noOfHosts
* @param selectionScheme
* @return {*}
*/
getHostForComponent: function(noOfHosts, selectionScheme){
var hosts = this.get('hosts');
if(hosts.length === 1 || $.isEmptyObject(selectionScheme)){
return hosts[0];
} else {
for(var i in selectionScheme){
if(window.isFinite(i)){
if(noOfHosts < window.parseInt(i)){
return hosts[selectionScheme[i]];
}
}
}
return hosts[selectionScheme['else']]
}
},
getZooKeeperServer:function (noOfHosts) {
var hosts = this.get('hosts');
if (noOfHosts < 3) {
return [hosts[0].host_name];
} else {
return [hosts[0].host_name, hosts[1].host_name, hosts[2].host_name];
}
},
getGangliaServer:function (noOfHosts) {
var hostNames = this.get('hosts').mapProperty('host_name');
var hostExcAmbari = hostNames.without(location.hostname);
if (noOfHosts > 1) {
return hostExcAmbari[0];
} else {
return hostNames[0];
}
},
getNagiosServer:function (noOfHosts) {
return this.getGangliaServer(noOfHosts);
},
getHueServer:function (noOfHosts) {
return this.getGangliaServer(noOfHosts);
},
/**
* Return hostName of masterNode for specified service
* @param componentName
* @return {*}
*/
selectHost:function (componentName) {
var noOfHosts = this.get('hosts').length;
switch (componentName) {
case 'KERBEROS_SERVER':
return this.getHostForComponent(noOfHosts, {
"3" : 1,
"6" : 1,
"31" : 3,
"else" : 5
}).host_name;
case 'NAMENODE':
return this.getHostForComponent(noOfHosts, {
"else" : 0
}).host_name;
case 'SECONDARY_NAMENODE':
return this.getHostForComponent(noOfHosts, {
"else" : 1
}).host_name;
case 'JOBTRACKER':
return this.getHostForComponent(noOfHosts, {
"3" : 1,
"6" : 1,
"31" : 1,
"else" : 2
}).host_name;
case 'HISTORYSERVER':
return this.getHostForComponent(noOfHosts, {
"3" : 1,
"6" : 1,
"31" : 1,
"else" : 2
}).host_name;
case 'RESOURCEMANAGER':
return this.getHostForComponent(noOfHosts, {
"3" : 1,
"6" : 1,
"31" : 1,
"else" : 2
}).host_name;
case 'HBASE_MASTER':
return [this.getHostForComponent(noOfHosts, {
"3" : 0,
"6" : 0,
"31" : 2,
"else" : 3
}).host_name];
case 'OOZIE_SERVER':
return this.getHostForComponent(noOfHosts, {
"3" : 1,
"6" : 1,
"31" : 2,
"else" : 3
}).host_name;
case 'HIVE_SERVER':
return this.getHostForComponent(noOfHosts, {
"3" : 1,
"6" : 1,
"31" : 2,
"else" : 4
}).host_name;
case 'HIVE_METASTORE':
return this.getHostForComponent(noOfHosts, {
"3" : 1,
"6" : 1,
"31" : 2,
"else" : 4
}).host_name;
case 'WEBHCAT_SERVER':
return this.getHostForComponent(noOfHosts, {
"3" : 1,
"6" : 1,
"31" : 2,
"else" : 4
}).host_name;
case 'ZOOKEEPER_SERVER':
return this.getZooKeeperServer(noOfHosts);
case 'GANGLIA_SERVER':
return this.getGangliaServer(noOfHosts);
case 'NAGIOS_SERVER':
return this.getNagiosServer(noOfHosts);
case 'HUE_SERVER':
return this.getHueServer(noOfHosts);
}
},
masterHostMapping:function () {
var mapping = [], mappingObject, self = this, mappedHosts, hostObj, hostInfo;
//get the unique assigned hosts and find the master services assigned to them
mappedHosts = this.get("selectedServicesMasters").mapProperty("selectedHost").uniq();
mappedHosts.forEach(function (item) {
hostObj = self.get("hosts").findProperty("host_name", item);
console.log("Name of the host is: " + hostObj.host_name);
mappingObject = Ember.Object.create({
host_name:item,
hostInfo:hostObj.host_info,
masterServices:self.get("selectedServicesMasters").filterProperty("selectedHost", item)
});
mapping.pushObject(mappingObject);
}, this);
mapping.sort(this.sortHostsByName);
return mapping;
}.property("selectedServicesMasters.@each.selectedHost"),
remainingHosts:function () {
return (this.get("hosts.length") - this.get("masterHostMapping.length"));
}.property("selectedServicesMasters.@each.selectedHost"),
//methods
getAvailableHosts:function (componentName) {
var selectedHosts = this.get("selectedServicesMasters").filterProperty("component_name", componentName).mapProperty("selectedHost").uniq();
return this.get('hosts').filter(function(item){
return !selectedHosts.contains(item.get("host_name"));
});
},
/**
* On change callback for selects
* @param componentName
* @param selectedHost
* @param zId
*/
assignHostToMaster:function (componentName, selectedHost, zId) {
if (selectedHost && componentName) {
if (zId) {
this.get('selectedServicesMasters').filterProperty('component_name', componentName).findProperty("zId", zId).set("selectedHost", selectedHost);
this.rebalanceComponentHosts(componentName);
} else {
this.get('selectedServicesMasters').findProperty("component_name", componentName).set("selectedHost", selectedHost);
}
}
},
/**
* Returns last component of selected type
* @param componentName
* @return {*}
*/
last: function(componentName){
return this.get("selectedServicesMasters").filterProperty("component_name", componentName).get("lastObject");
},
/**
* Add new component to ZooKeeper Server and Hbase master
* @param componentName
* @return {Boolean}
*/
addComponent:function (componentName) {
/*
*Logic: If ZooKeeper service is selected then there can be
* minimum 1 ZooKeeper master in total, and
* maximum 1 ZooKeeper on every host
*/
var maxNumZooKeepers = this.get("hosts.length"),
currentZooKeepers = this.get("selectedServicesMasters").filterProperty("component_name", componentName),
newZookeeper = null,
zookeeperHosts = null,
suggestedHost = null,
i = 0,
lastZoo = null;
if (!currentZooKeepers.length) {
console.log('ALERT: Zookeeper service was not selected');
return false;
}
if (currentZooKeepers.get("length") < maxNumZooKeepers) {
currentZooKeepers.set("lastObject.showAddControl", false);
currentZooKeepers.set("lastObject.showRemoveControl", true);
//create a new zookeeper based on an existing one
newZookeeper = Ember.Object.create({});
lastZoo = currentZooKeepers.get("lastObject");
newZookeeper.set("display_name", lastZoo.get("display_name"));
newZookeeper.set("component_name", lastZoo.get("component_name"));
newZookeeper.set("selectedHost", lastZoo.get("selectedHost"));
newZookeeper.set("availableHosts", this.getAvailableHosts(componentName));
if (currentZooKeepers.get("length") === (maxNumZooKeepers - 1)) {
newZookeeper.set("showAddControl", false);
} else {
newZookeeper.set("showAddControl", true);
}
newZookeeper.set("showRemoveControl", true);
//get recommended host for the new Zookeeper server
zookeeperHosts = currentZooKeepers.mapProperty("selectedHost").uniq();
for (i = 0; i < this.get("hosts.length"); i++) {
if (!(zookeeperHosts.contains(this.get("hosts")[i].get("host_name")))) {
suggestedHost = this.get("hosts")[i].get("host_name");
break;
}
}
newZookeeper.set("selectedHost", suggestedHost);
newZookeeper.set("zId", (currentZooKeepers.get("lastObject.zId") + 1));
this.get("selectedServicesMasters").insertAt(this.get("selectedServicesMasters").indexOf(lastZoo) + 1, newZookeeper);
if(componentName == 'ZOOKEEPER_SERVER' || componentName == 'HBASE_MASTER'){
this.rebalanceComponentHosts(componentName);
}
return true;
}
return false;//if no more zookeepers can be added
},
/**
* Remove component from ZooKeeper server or Hbase Master
* @param componentName
* @param zId
* @return {Boolean}
*/
removeComponent:function (componentName, zId) {
var currentZooKeepers = this.get("selectedServicesMasters").filterProperty("component_name", componentName)
//work only if the Zookeeper service is selected in previous step
if (!currentZooKeepers.length) {
return false;
}
if (currentZooKeepers.get("length") > 1) {
this.get("selectedServicesMasters").removeAt(this.get("selectedServicesMasters").indexOf(currentZooKeepers.findProperty("zId", zId)));
currentZooKeepers = this.get("selectedServicesMasters").filterProperty("component_name", componentName);
if (currentZooKeepers.get("length") < this.get("hosts.length")) {
currentZooKeepers.set("lastObject.showAddControl", true);
}
if (currentZooKeepers.get("length") === 1) {
currentZooKeepers.set("lastObject.showRemoveControl", false);
}
if(componentName == 'ZOOKEEPER_SERVER' || componentName == 'HBASE_MASTER'){
this.rebalanceComponentHosts(componentName);
}
return true;
}
return false;
},
rebalanceComponentHosts:function (componentName) {
//for a zookeeper and hbase update the available hosts for the other zookeepers and hbases
var currentComponents = this.get("selectedServicesMasters").filterProperty("component_name", componentName),
componentHosts = currentComponents.mapProperty("selectedHost"),
availableComponentHosts = [],
preparedAvailableHosts = null;
//get all hosts available for zookeepers
this.get("hosts").forEach(function (item) {
if (!componentHosts.contains(item.get("host_name"))) {
availableComponentHosts.pushObject(item);
}
}, this);
currentComponents.forEach(function (item) {
preparedAvailableHosts = availableComponentHosts.slice(0);
preparedAvailableHosts.pushObject(this.get("hosts").findProperty("host_name", item.get("selectedHost")))
preparedAvailableHosts.sort(this.sortHostsByConfig, this);
item.set("availableHosts", preparedAvailableHosts);
}, this);
},
sortHostsByConfig:function (a, b) {
//currently handling only total memory on the host
if (a.memory < b.memory) {
return 1;
}
else {
return -1;
}
},
sortHostsByName:function (a, b) {
if (a.host_name > b.host_name) {
return 1;
}
else {
return -1;
}
},
submit: function () {
if (!this.get('isSubmitDisabled')){
App.router.send('next');
}
}
});