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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.
*/
--%>
<%@ page contentType="text/html;charset=UTF-8"
import="static org.apache.commons.lang3.StringEscapeUtils.escapeXml"
import="java.util.ArrayList"
import="java.util.Collection"
import="java.util.HashMap"
import="java.util.LinkedHashMap"
import="java.util.List"
import="java.util.Map"
import="java.util.Set"
import="java.util.HashSet"
import="java.util.Optional"
import="java.util.TreeMap"
import="java.util.concurrent.TimeUnit"
import="org.apache.commons.lang3.StringEscapeUtils"
import="org.apache.hadoop.conf.Configuration"
import="org.apache.hadoop.hbase.HConstants"
import="org.apache.hadoop.hbase.HRegionLocation"
import="org.apache.hadoop.hbase.HTableDescriptor"
import="org.apache.hadoop.hbase.NotServingRegionException"
import="org.apache.hadoop.hbase.RegionMetrics"
import="org.apache.hadoop.hbase.RegionMetricsBuilder"
import="org.apache.hadoop.hbase.ServerMetrics"
import="org.apache.hadoop.hbase.ServerName"
import="org.apache.hadoop.hbase.Size"
import="org.apache.hadoop.hbase.TableName"
import="org.apache.hadoop.hbase.TableNotFoundException"
import="org.apache.hadoop.hbase.client.AsyncAdmin"
import="org.apache.hadoop.hbase.client.AsyncConnection"
import="org.apache.hadoop.hbase.client.CompactionState"
import="org.apache.hadoop.hbase.client.ConnectionFactory"
import="org.apache.hadoop.hbase.client.RegionInfo"
import="org.apache.hadoop.hbase.client.RegionInfoBuilder"
import="org.apache.hadoop.hbase.client.RegionLocator"
import="org.apache.hadoop.hbase.client.RegionReplicaUtil"
import="org.apache.hadoop.hbase.client.Table"
import="org.apache.hadoop.hbase.client.TableState"
import="org.apache.hadoop.hbase.client.ColumnFamilyDescriptor"
import="org.apache.hadoop.hbase.http.InfoServer"
import="org.apache.hadoop.hbase.master.HMaster"
import="org.apache.hadoop.hbase.master.RegionState"
import="org.apache.hadoop.hbase.master.assignment.RegionStates"
import="org.apache.hadoop.hbase.master.webapp.MetaBrowser"
import="org.apache.hadoop.hbase.master.webapp.RegionReplicaInfo"
import="org.apache.hadoop.hbase.quotas.QuotaSettingsFactory"
import="org.apache.hadoop.hbase.quotas.QuotaTableUtil"%>
<%@ page import="org.apache.hadoop.hbase.quotas.SpaceQuotaSnapshot" %>
<%@ page import="org.apache.hadoop.hbase.quotas.ThrottleSettings" %>
<%@ page import="org.apache.hadoop.hbase.util.Bytes" %>
<%@ page import="org.apache.hadoop.hbase.util.FSUtils" %>
<%@ page import="org.apache.hadoop.hbase.zookeeper.MetaTableLocator" %>
<%@ page import="org.apache.hadoop.util.StringUtils" %>
<%@ page import="org.apache.hbase.thirdparty.com.google.protobuf.ByteString" %>
<%@ page import="org.apache.hadoop.hbase.shaded.protobuf.generated.ClusterStatusProtos" %>
<%@ page import="org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos" %>
<%@ page import="org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.Quotas" %>
<%@ page import="org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuota" %>
<%@ page import="java.net.URLEncoder" %>
<%@ page import="java.util.stream.Collectors" %>
<%!
/**
* @return An empty region load stamped with the passed in regionInfo
* region name.
*/
private static RegionMetrics getEmptyRegionMetrics(final RegionInfo regionInfo) {
return RegionMetricsBuilder.toRegionMetrics(ClusterStatusProtos.RegionLoad.newBuilder().
setRegionSpecifier(HBaseProtos.RegionSpecifier.newBuilder().
setType(HBaseProtos.RegionSpecifier.RegionSpecifierType.REGION_NAME).
setValue(ByteString.copyFrom(regionInfo.getRegionName())).build()).build());
}
/**
* Given dicey information that may or not be available in meta, render a link to the region on
* its region server.
* @return an anchor tag if one can be built, {@code null} otherwise.
*/
private static String buildRegionServerLink(final ServerName serverName, final int rsInfoPort,
final RegionInfo regionInfo, final RegionState.State regionState) {
if (serverName == null || regionInfo == null) { return null; }
if (regionState != RegionState.State.OPEN) {
// region is assigned to RS, but RS knows nothing of it. don't bother with a link.
return serverName.getServerName();
}
final String socketAddress = serverName.getHostname() + ":" + rsInfoPort;
final String URI = "//" + socketAddress + "/region.jsp"
+ "?name=" + regionInfo.getEncodedName();
return "" + serverName.getServerName() + "";
}
%>
<%
final String ZEROMB = "0 MB";
HMaster master = (HMaster)getServletContext().getAttribute(HMaster.MASTER);
Configuration conf = master.getConfiguration();
String fqtn = request.getParameter("name");
final String escaped_fqtn = StringEscapeUtils.escapeHtml4(fqtn);
Table table;
boolean withReplica = false;
boolean showFragmentation = conf.getBoolean("hbase.master.ui.fragmentation.enabled", false);
boolean readOnly = !InfoServer.canUserModifyUI(request, getServletContext(), conf);
int numMetaReplicas =
master.getTableDescriptors().get(TableName.META_TABLE_NAME).getRegionReplication();
Map frags = null;
if (showFragmentation) {
frags = FSUtils.getTableFragmentation(master);
}
boolean quotasEnabled = conf.getBoolean("hbase.quota.enabled", false);
String action = request.getParameter("action");
String key = request.getParameter("key");
String left = request.getParameter("left");
String right = request.getParameter("right");
long totalStoreFileSizeMB = 0;
final String numRegionsParam = request.getParameter("numRegions");
// By default, the page render up to 10000 regions to improve the page load time
int numRegionsToRender = 10000;
if (numRegionsParam != null) {
// either 'all' or a number
if (numRegionsParam.equals("all")) {
numRegionsToRender = -1;
} else {
try {
numRegionsToRender = Integer.parseInt(numRegionsParam);
} catch (NumberFormatException ex) {
// ignore
}
}
}
int numRegions = 0;
String pageTitle;
if ( !readOnly && action != null ) {
pageTitle = "HBase Master: " + StringEscapeUtils.escapeHtml4(master.getServerName().toString());
} else {
pageTitle = "Table: " + escaped_fqtn;
}
pageContext.setAttribute("pageTitle", pageTitle);
final AsyncConnection connection = ConnectionFactory.createAsyncConnection(master.getConfiguration()).get();
final AsyncAdmin admin = connection.getAdminBuilder()
.setOperationTimeout(5, TimeUnit.SECONDS)
.build();
final MetaBrowser metaBrowser = new MetaBrowser(connection, request);
%>
<%
if (fqtn != null && master.isInitialized()) {
try {
table = master.getConnection().getTable(TableName.valueOf(fqtn));
if (table.getTableDescriptor().getRegionReplication() > 1) {
withReplica = true;
}
if ( !readOnly && action != null ) {
%>
Table action request accepted
<%
if (action.equals("split")) {
if (key != null && key.length() > 0) {
admin.split(TableName.valueOf(fqtn), Bytes.toBytes(key));
} else {
admin.split(TableName.valueOf(fqtn));
}
%> Split request accepted. <%
} else if (action.equals("compact")) {
if (key != null && key.length() > 0) {
List regions = admin.getRegions(TableName.valueOf(fqtn)).get();
byte[] row = Bytes.toBytes(key);
for (RegionInfo region : regions) {
if (region.containsRow(row)) {
admin.compactRegion(region.getRegionName());
}
}
} else {
admin.compact(TableName.valueOf(fqtn));
}
%> Compact request accepted. <%
} else if (action.equals("merge")) {
if (left != null && left.length() > 0 && right != null && right.length() > 0) {
admin.mergeRegions(Bytes.toBytesBinary(left), Bytes.toBytesBinary(right), false);
}
%> Merge request accepted. <%
}
%>
This table has <%= numRegions %> regions in total, in order to improve the page load time,
only <%= numRegionsRendered %> regions are displayed here, click
here to see all regions.
<% } %>
Name(<%= String.format("%,1d", regions.size())%>)
Region Server
Locality (<%= totalLocality %>)
LocalityForSsd (<%= totalLocalityForSsd %>)
<%
numRegionsRendered = 0;
for (Map.Entry hriEntry : entryList) {
RegionInfo regionInfo = hriEntry.getKey();
ServerName addr = regionsToServer.get(regionInfo);
RegionMetrics load = hriEntry.getValue();
float locality = 0.0f;
float localityForSsd = 0.0f;
String state = "N/A";
if (load != null) {
locality = load.getDataLocality();
localityForSsd = load.getDataLocalityForSsd();
}
if (addr != null) {
// This port might be wrong if RS actually ended up using something else.
urlRegionServer =
"//" + URLEncoder.encode(addr.getHostname()) + ":" + master.getRegionServerInfoPort(addr) + "/rs-status";
}
if (numRegionsRendered < numRegionsToRender) {
numRegionsRendered++;
%>
This table has <%= numRegions %> regions in total, in order to improve the page load time,
only <%= numRegionsRendered %> regions are displayed here, click
here to see all regions.
