/**
* 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.
*/
package org.apache.hadoop.yarn.server.resourcemanager.webapp;
import static org.apache.hadoop.yarn.util.StringHelper.join;
import java.util.ArrayList;
import org.apache.hadoop.util.StringUtils;
import org.apache.commons.lang.StringEscapeUtils;
import org.apache.hadoop.yarn.server.resourcemanager.ResourceManager;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CSQueue;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.UserInfo;
import org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.CapacitySchedulerInfo;
import org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.CapacitySchedulerLeafQueueInfo;
import org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.CapacitySchedulerQueueInfo;
import org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.ResourceInfo;
import org.apache.hadoop.yarn.webapp.ResponseInfo;
import org.apache.hadoop.yarn.webapp.SubView;
import org.apache.hadoop.yarn.webapp.hamlet.Hamlet;
import org.apache.hadoop.yarn.webapp.hamlet.Hamlet.DIV;
import org.apache.hadoop.yarn.webapp.hamlet.Hamlet.LI;
import org.apache.hadoop.yarn.webapp.hamlet.Hamlet.UL;
import org.apache.hadoop.yarn.webapp.view.HtmlBlock;
import org.apache.hadoop.yarn.webapp.view.InfoBlock;
import com.google.inject.Inject;
import com.google.inject.servlet.RequestScoped;
class CapacitySchedulerPage extends RmView {
static final String _Q = ".ui-state-default.ui-corner-all";
static final float Q_MAX_WIDTH = 0.8f;
static final float Q_STATS_POS = Q_MAX_WIDTH + 0.05f;
static final String Q_END = "left:101%";
static final String Q_GIVEN = "left:0%;background:none;border:1px dashed rgba(0,0,0,0.25)";
static final String Q_OVER = "background:rgba(255, 140, 0, 0.8)";
static final String Q_UNDER = "background:rgba(50, 205, 50, 0.8)";
@RequestScoped
static class CSQInfo {
CapacitySchedulerInfo csinfo;
CapacitySchedulerQueueInfo qinfo;
}
static class LeafQueueInfoBlock extends HtmlBlock {
final CapacitySchedulerLeafQueueInfo lqinfo;
@Inject LeafQueueInfoBlock(ViewContext ctx, CSQInfo info) {
super(ctx);
lqinfo = (CapacitySchedulerLeafQueueInfo) info.qinfo;
}
//Return a string describing one resource as a percentage of another
private String getPercentage(ResourceInfo numerator, ResourceInfo denominator) {
StringBuilder percentString = new StringBuilder("Memory: ");
if (numerator != null) {
percentString.append(numerator.getMemory());
}
if (denominator.getMemory() != 0) {
percentString.append(" (<span title='of used resources in this queue'>")
.append(StringUtils.format("%.2f", numerator.getMemory() * 100.0 /
denominator.getMemory()) + "%</span>)");
}
percentString.append(", vCores: ");
if (numerator != null) {
percentString.append(numerator.getvCores());
}
if (denominator.getvCores() != 0) {
percentString.append(" (<span title='of used resources in this queue'>")
.append(StringUtils.format("%.2f", numerator.getvCores() * 100.0 /
denominator.getvCores()) + "%</span>)");
}
return percentString.toString();
}
@Override
protected void render(Block html) {
StringBuilder activeUserList = new StringBuilder("");
ResourceInfo usedResources = lqinfo.getResourcesUsed();
ArrayList<UserInfo> users = lqinfo.getUsers().getUsersList();
for (UserInfo entry: users) {
activeUserList.append(entry.getUsername()).append(" <")
.append(getPercentage(entry.getResourcesUsed(), usedResources))
.append(", Schedulable Apps: " + entry.getNumActiveApplications())
.append(", Non-Schedulable Apps: " + entry.getNumPendingApplications())
.append("><br style='display:block'>"); //Force line break
}
ResponseInfo ri = info("\'" + lqinfo.getQueuePath().substring(5) + "\' Queue Status").
_("Queue State:", lqinfo.getQueueState()).
_("Used Capacity:", percent(lqinfo.getUsedCapacity() / 100)).
_("Absolute Used Capacity:", percent(lqinfo.getAbsoluteUsedCapacity() / 100)).
_("Absolute Capacity:", percent(lqinfo.getAbsoluteCapacity() / 100)).
_("Absolute Max Capacity:", percent(lqinfo.getAbsoluteMaxCapacity() / 100)).
_("Used Resources:", StringEscapeUtils.escapeHtml(lqinfo.getUsedResources().toString())).
_("Num Schedulable Applications:", Integer.toString(lqinfo.getNumActiveApplications())).
_("Num Non-Schedulable Applications:", Integer.toString(lqinfo.getNumPendingApplications())).
_("Num Containers:", Integer.toString(lqinfo.getNumContainers())).
_("Max Applications:", Integer.toString(lqinfo.getMaxApplications())).
_("Max Applications Per User:", Integer.toString(lqinfo.getMaxApplicationsPerUser())).
_("Max Schedulable Applications:", Integer.toString(lqinfo.getMaxActiveApplications())).
_("Max Schedulable Applications Per User:", Integer.toString(lqinfo.getMaxActiveApplicationsPerUser())).
_("Configured Capacity:", percent(lqinfo.getCapacity() / 100)).
_("Configured Max Capacity:", percent(lqinfo.getMaxCapacity() / 100)).
_("Configured Minimum User Limit Percent:", Integer.toString(lqinfo.getUserLimit()) + "%").
_("Configured User Limit Factor:", String.format("%.1f", lqinfo.getUserLimitFactor())).
_r("Active users: ", activeUserList.toString());
html._(InfoBlock.class);
// clear the info contents so this queue's info doesn't accumulate into another queue's info
ri.clear();
}
}
public static class QueueBlock extends HtmlBlock {
final CSQInfo csqinfo;
@Inject QueueBlock(CSQInfo info) {
csqinfo = info;
}
@Override
public void render(Block html) {
ArrayList<CapacitySchedulerQueueInfo> subQueues =
(csqinfo.qinfo == null) ? csqinfo.csinfo.getQueues().getQueueInfoList()
: csqinfo.qinfo.getQueues().getQueueInfoList();
UL<Hamlet> ul = html.ul("#pq");
for (CapacitySchedulerQueueInfo info : subQueues) {
float used = info.getUsedCapacity() / 100;
float absCap = info.getAbsoluteCapacity() / 100;
float absMaxCap = info.getAbsoluteMaxCapacity() / 100;
float absUsedCap = info.getAbsoluteUsedCapacity() / 100;
LI<UL<Hamlet>> li = ul.
li().
a(_Q).$style(width(absMaxCap * Q_MAX_WIDTH)).
$title(join("Absolute Capacity:", percent(absCap))).
span().$style(join(Q_GIVEN, ";font-size:1px;", width(absCap/absMaxCap))).
_('.')._().
span().$style(join(width(absUsedCap/absMaxCap),
";font-size:1px;left:0%;", absUsedCap > absCap ? Q_OVER : Q_UNDER)).
_('.')._().
span(".q", info.getQueuePath().substring(5))._().
span().$class("qstats").$style(left(Q_STATS_POS)).
_(join(percent(used), " used"))._();
csqinfo.qinfo = info;
if (info.getQueues() == null) {
li.ul("#lq").li()._(LeafQueueInfoBlock.class)._()._();
} else {
li._(QueueBlock.class);
}
li._();
}
ul._();
}
}
static class QueuesBlock extends HtmlBlock {
final CapacityScheduler cs;
final CSQInfo csqinfo;
@Inject QueuesBlock(ResourceManager rm, CSQInfo info) {
cs = (CapacityScheduler) rm.getResourceScheduler();
csqinfo = info;
}
@Override
public void render(Block html) {
html._(MetricsOverviewTable.class);
UL<DIV<DIV<Hamlet>>> ul = html.
div("#cs-wrapper.ui-widget").
div(".ui-widget-header.ui-corner-top").
_("Application Queues")._().
div("#cs.ui-widget-content.ui-corner-bottom").
ul();
if (cs == null) {
ul.
li().
a(_Q).$style(width(Q_MAX_WIDTH)).
span().$style(Q_END)._("100% ")._().
span(".q", "default")._()._();
} else {
CSQueue root = cs.getRootQueue();
CapacitySchedulerInfo sinfo = new CapacitySchedulerInfo(root);
csqinfo.csinfo = sinfo;
csqinfo.qinfo = null;
float used = sinfo.getUsedCapacity() / 100;
ul.
li().$style("margin-bottom: 1em").
span().$style("font-weight: bold")._("Legend:")._().
span().$class("qlegend ui-corner-all").$style(Q_GIVEN).
_("Capacity")._().
span().$class("qlegend ui-corner-all").$style(Q_UNDER).
_("Used")._().
span().$class("qlegend ui-corner-all").$style(Q_OVER).
_("Used (over capacity)")._().
span().$class("qlegend ui-corner-all ui-state-default").
_("Max Capacity")._().
_().
li().
a(_Q).$style(width(Q_MAX_WIDTH)).
span().$style(join(width(used), ";left:0%;",
used > 1 ? Q_OVER : Q_UNDER))._(".")._().
span(".q", "root")._().
span().$class("qstats").$style(left(Q_STATS_POS)).
_(join(percent(used), " used"))._().
_(QueueBlock.class)._();
}
ul._()._().
script().$type("text/javascript").
_("$('#cs').hide();")._()._().
_(AppsBlock.class);
}
}
@Override protected void postHead(Page.HTML<_> html) {
html.
style().$type("text/css").
_("#cs { padding: 0.5em 0 1em 0; margin-bottom: 1em; position: relative }",
"#cs ul { list-style: none }",
"#cs a { font-weight: normal; margin: 2px; position: relative }",
"#cs a span { font-weight: normal; font-size: 80% }",
"#cs-wrapper .ui-widget-header { padding: 0.2em 0.5em }",
".qstats { font-weight: normal; font-size: 80%; position: absolute }",
".qlegend { font-weight: normal; padding: 0 1em; margin: 1em }",
"table.info tr th {width: 50%}")._(). // to center info table
script("/static/jt/jquery.jstree.js").
script().$type("text/javascript").
_("$(function() {",
" $('#cs a span').addClass('ui-corner-all').css('position', 'absolute');",
" $('#cs').bind('loaded.jstree', function (e, data) {",
" data.inst.open_node('#pq', true);",
" }).",
" jstree({",
" core: { animation: 188, html_titles: true },",
" plugins: ['themeroller', 'html_data', 'ui'],",
" themeroller: { item_open: 'ui-icon-minus',",
" item_clsd: 'ui-icon-plus', item_leaf: 'ui-icon-gear'",
" }",
" });",
" $('#cs').bind('select_node.jstree', function(e, data) {",
" var q = $('.q', data.rslt.obj).first().text();",
" if (q == 'root') q = '';",
" else q = '^' + q.substr(q.lastIndexOf('.') + 1) + '$';",
" $('#apps').dataTable().fnFilter(q, 3, true);",
" });",
" $('#cs').show();",
"});")._();
}
@Override protected Class<? extends SubView> content() {
return QueuesBlock.class;
}
static String percent(float f) {
return String.format("%.1f%%", f * 100);
}
static String width(float f) {
return String.format("width:%.1f%%", f * 100);
}
static String left(float f) {
return String.format("left:%.1f%%", f * 100);
}
}