/**
* 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.server.resourcemanager.webapp.RMWebApp.NODE_STATE;
import static org.apache.hadoop.yarn.webapp.view.JQueryUI.DATATABLES;
import static org.apache.hadoop.yarn.webapp.view.JQueryUI.DATATABLES_ID;
import static org.apache.hadoop.yarn.webapp.view.JQueryUI.initID;
import static org.apache.hadoop.yarn.webapp.view.JQueryUI.tableInit;
import java.util.Collection;
import org.apache.hadoop.util.StringUtils;
import org.apache.hadoop.yarn.api.records.NodeState;
import org.apache.hadoop.yarn.server.resourcemanager.RMContext;
import org.apache.hadoop.yarn.server.resourcemanager.ResourceManager;
import org.apache.hadoop.yarn.server.resourcemanager.rmnode.RMNode;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.ResourceScheduler;
import org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.NodeInfo;
import org.apache.hadoop.yarn.util.Times;
import org.apache.hadoop.yarn.webapp.SubView;
import org.apache.hadoop.yarn.webapp.hamlet.Hamlet;
import org.apache.hadoop.yarn.webapp.hamlet.Hamlet.TABLE;
import org.apache.hadoop.yarn.webapp.hamlet.Hamlet.TBODY;
import org.apache.hadoop.yarn.webapp.hamlet.Hamlet.TR;
import org.apache.hadoop.yarn.webapp.view.HtmlBlock;
import com.google.inject.Inject;
class NodesPage extends RmView {
static class NodesBlock extends HtmlBlock {
final RMContext rmContext;
final ResourceManager rm;
private static final long BYTES_IN_MB = 1024 * 1024;
@Inject
NodesBlock(RMContext context, ResourceManager rm, ViewContext ctx) {
super(ctx);
this.rmContext = context;
this.rm = rm;
}
@Override
protected void render(Block html) {
html._(MetricsOverviewTable.class);
ResourceScheduler sched = rm.getResourceScheduler();
String type = $(NODE_STATE);
TBODY<TABLE<Hamlet>> tbody = html.table("#nodes").
thead().
tr().
th(".rack", "Rack").
th(".state", "Node State").
th(".nodeaddress", "Node Address").
th(".nodehttpaddress", "Node HTTP Address").
th(".lastHealthUpdate", "Last health-update").
th(".healthReport", "Health-report").
th(".containers", "Containers").
th(".mem", "Mem Used").
th(".mem", "Mem Avail").
th(".vcores", "VCores Used").
th(".vcores", "VCores Avail").
th(".nodeManagerVersion", "Version").
_()._().
tbody();
NodeState stateFilter = null;
if(type != null && !type.isEmpty()) {
stateFilter = NodeState.valueOf(type.toUpperCase());
}
Collection<RMNode> rmNodes = this.rmContext.getRMNodes().values();
boolean isInactive = false;
if (stateFilter != null) {
switch (stateFilter) {
case DECOMMISSIONED:
case LOST:
case REBOOTED:
rmNodes = this.rmContext.getInactiveRMNodes().values();
isInactive = true;
break;
}
}
for (RMNode ni : rmNodes) {
if(stateFilter != null) {
NodeState state = ni.getState();
if(!stateFilter.equals(state)) {
continue;
}
} else {
// No filter. User is asking for all nodes. Make sure you skip the
// unhealthy nodes.
if (ni.getState() == NodeState.UNHEALTHY) {
continue;
}
}
NodeInfo info = new NodeInfo(ni, sched);
int usedMemory = (int)info.getUsedMemory();
int availableMemory = (int)info.getAvailableMemory();
TR<TBODY<TABLE<Hamlet>>> row = tbody.tr().
td(info.getRack()).
td(info.getState()).
td(info.getNodeId());
if (isInactive) {
row.td()._("N/A")._();
} else {
String httpAddress = info.getNodeHTTPAddress();
row.td().a("//" + httpAddress,
httpAddress)._();
}
row.td().br().$title(String.valueOf(info.getLastHealthUpdate()))._().
_(Times.format(info.getLastHealthUpdate()))._().
td(info.getHealthReport()).
td(String.valueOf(info.getNumContainers())).
td().br().$title(String.valueOf(usedMemory))._().
_(StringUtils.byteDesc(usedMemory * BYTES_IN_MB))._().
td().br().$title(String.valueOf(availableMemory))._().
_(StringUtils.byteDesc(availableMemory * BYTES_IN_MB))._().
td(String.valueOf(info.getUsedVirtualCores())).
td(String.valueOf(info.getAvailableVirtualCores())).
td(ni.getNodeManagerVersion()).
_();
}
tbody._()._();
}
}
@Override protected void preHead(Page.HTML<_> html) {
commonPreHead(html);
String type = $(NODE_STATE);
String title = "Nodes of the cluster";
if(type != null && !type.isEmpty()) {
title = title+" ("+type+")";
}
setTitle(title);
set(DATATABLES_ID, "nodes");
set(initID(DATATABLES, "nodes"), nodesTableInit());
setTableStyles(html, "nodes", ".healthStatus {width:10em}",
".healthReport {width:10em}");
}
@Override protected Class<? extends SubView> content() {
return NodesBlock.class;
}
private String nodesTableInit() {
StringBuilder b = tableInit().append(", aoColumnDefs: [");
b.append("{'bSearchable': false, 'aTargets': [ 6 ]}");
b.append(", {'sType': 'title-numeric', 'bSearchable': false, " +
"'aTargets': [ 7, 8 ] }");
b.append(", {'sType': 'title-numeric', 'aTargets': [ 4 ]}");
b.append("]}");
return b.toString();
}
}