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• table_jsp.java

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org.apache.hadoop.hbase.generated.master.table_jsp Maven / Gradle / Ivy

package org.apache.hadoop.hbase.generated.master;

import javax.servlet.*;
import javax.servlet.http.*;
import javax.servlet.jsp.*;
import java.net.URLEncoder;
import static org.apache.commons.lang3.StringEscapeUtils.escapeXml;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.Comparator;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.TreeMap;
import org.apache.commons.lang3.StringEscapeUtils;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.HColumnDescriptor;
import org.apache.hadoop.hbase.HConstants;
import org.apache.hadoop.hbase.HRegionLocation;
import org.apache.hadoop.hbase.ServerName;
import org.apache.hadoop.hbase.TableName;
import org.apache.hadoop.hbase.TableNotFoundException;
import org.apache.hadoop.hbase.client.Admin;
import org.apache.hadoop.hbase.client.CompactionState;
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.master.HMaster;
import org.apache.hadoop.hbase.quotas.QuotaTableUtil;
import org.apache.hadoop.hbase.quotas.SpaceQuotaSnapshot;
import org.apache.hadoop.hbase.util.Bytes;
import org.apache.hadoop.hbase.util.FSUtils;
import org.apache.hadoop.hbase.zookeeper.MetaTableLocator;
import org.apache.hadoop.util.StringUtils;
import org.apache.hbase.thirdparty.com.google.protobuf.ByteString;
import org.apache.hadoop.hbase.shaded.protobuf.generated.ClusterStatusProtos;
import org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos;
import org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.Quotas;
import org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuota;
import org.apache.hadoop.hbase.ServerMetrics;
import org.apache.hadoop.hbase.RegionMetrics;
import org.apache.hadoop.hbase.Size;
import org.apache.hadoop.hbase.RegionMetricsBuilder;

public final class table_jsp extends org.apache.jasper.runtime.HttpJspBase
    implements org.apache.jasper.runtime.JspSourceDependent {


  /**
   * @return An empty region load stamped with the passed in regionInfo
   * region name.
   */
  private 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());
  }

  private static final JspFactory _jspxFactory = JspFactory.getDefaultFactory();

  private static java.util.List _jspx_dependants;

  private org.glassfish.jsp.api.ResourceInjector _jspx_resourceInjector;

  public java.util.List getDependants() {
    return _jspx_dependants;
  }

  public void _jspService(HttpServletRequest request, HttpServletResponse response)
        throws java.io.IOException, ServletException {

    PageContext pageContext = null;
    HttpSession session = null;
    ServletContext application = null;
    ServletConfig config = null;
    JspWriter out = null;
    Object page = this;
    JspWriter _jspx_out = null;
    PageContext _jspx_page_context = null;

    try {
      response.setContentType("text/html;charset=UTF-8");
      pageContext = _jspxFactory.getPageContext(this, request, response,
      			null, true, 8192, true);
      _jspx_page_context = pageContext;
      application = pageContext.getServletContext();
      config = pageContext.getServletConfig();
      session = pageContext.getSession();
      out = pageContext.getOut();
      _jspx_out = out;
      _jspx_resourceInjector = (org.glassfish.jsp.api.ResourceInjector) application.getAttribute("com.sun.appserv.jsp.resource.injector");

      out.write("\n\n\n\n\n\n\n\n\n\n\n");
      out.write('\n');

  HMaster master = (HMaster)getServletContext().getAttribute(HMaster.MASTER);
  Configuration conf = master.getConfiguration();

  MetaTableLocator metaTableLocator = new MetaTableLocator();
  String fqtn = request.getParameter("name");
  final String escaped_fqtn = StringEscapeUtils.escapeHtml4(fqtn);
  String sortKey = request.getParameter("sort");
  String reverse = request.getParameter("reverse");
  final boolean reverseOrder = (reverse != null && reverse.equals("true"));
  String showWholeKey = request.getParameter("showwhole");
  final boolean showWhole = (showWholeKey!=null && showWholeKey.equals("true"));
  Table table;
  String tableHeader;
  boolean withReplica = false;
  boolean showFragmentation = conf.getBoolean("hbase.master.ui.fragmentation.enabled", false);
  boolean readOnly = conf.getBoolean("hbase.master.ui.readonly", false);
  int numMetaReplicas = conf.getInt(HConstants.META_REPLICAS_NUM,
                        HConstants.DEFAULT_META_REPLICA_NUM);
  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);

      out.write('\n');
      out.write('\n');
      org.apache.jasper.runtime.JspRuntimeLibrary.include(request, response, "header.jsp" + "?" + org.apache.jasper.runtime.JspRuntimeLibrary.URLEncode("pageTitle", request.getCharacterEncoding())+ "=" + org.apache.jasper.runtime.JspRuntimeLibrary.URLEncode((java.lang.String) org.apache.jasper.runtime.PageContextImpl.evaluateExpression("${pageTitle}", java.lang.String.class, (PageContext)_jspx_page_context, null), request.getCharacterEncoding()), out, false);
      out.write('\n');
      out.write('\n');

if ( fqtn != null ) {
  try {
  table = master.getConnection().getTable(TableName.valueOf(fqtn));
  if (table.getTableDescriptor().getRegionReplication() > 1) {
    tableHeader = "
Table Regions
";
    withReplica = true;
  } else {
    tableHeader = "
Table Regions
Name
Region Server
ReadRequests
WriteRequests
StorefileSize
Num.Storefiles
MemSize
Locality
Start Key
End Key
ReplicaID
";
  }
  if ( !readOnly && action != null ) {

      out.write("\n
\n        
\n            
\n                
Table action request accepted
\n            
\n        
\n
\n");

  try (Admin admin = master.getConnection().getAdmin()) {
    if (action.equals("split")) {
      if (key != null && key.length() > 0) {
        admin.split(TableName.valueOf(fqtn), Bytes.toBytes(key));
      } else {
        admin.split(TableName.valueOf(fqtn));
      }

    
      out.write(" Split request accepted. ");

    } else if (action.equals("compact")) {
      if (key != null && key.length() > 0) {
        List regions = admin.getRegions(TableName.valueOf(fqtn));
        byte[] row = Bytes.toBytes(key);

        for (RegionInfo region : regions) {
          if (region.containsRow(row)) {
            admin.compactRegion(region.getRegionName());
          }
        }
      } else {
        admin.compact(TableName.valueOf(fqtn));
      }
    
      out.write(" 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);
        }
        
      out.write(" Merge request accepted. ");

    }
  }

      out.write('\n');
      org.apache.jasper.runtime.JspRuntimeLibrary.include(request, response, "redirect.jsp", out, false);
      out.write("\n
\n");

  } else {

      out.write("\n
\n    
\n        
\n            
Table ");
      out.print( escaped_fqtn );
      out.write("
\n        
\n    
\n    
\n");

  if(fqtn.equals(TableName.META_TABLE_NAME.getNameAsString())) {

      out.write('\n');
      out.print( tableHeader );
      out.write('\n');

  // NOTE: Presumes meta with one or more replicas
  for (int j = 0; j < numMetaReplicas; j++) {
    RegionInfo meta = RegionReplicaUtil.getRegionInfoForReplica(
                            RegionInfoBuilder.FIRST_META_REGIONINFO, j);
    ServerName metaLocation = metaTableLocator.waitMetaRegionLocation(master.getZooKeeper(), j, 1);
    for (int i = 0; i < 1; i++) {
      String hostAndPort = "";
      String readReq = "N/A";
      String writeReq = "N/A";
      String fileSize = "N/A";
      String fileCount = "N/A";
      String memSize = "N/A";
      float locality = 0.0f;

      if (metaLocation != null) {
        ServerMetrics sl = master.getServerManager().getLoad(metaLocation);
        // The host name portion should be safe, but I don't know how we handle IDNs so err on the side of failing safely.
        hostAndPort = URLEncoder.encode(metaLocation.getHostname()) + ":" + master.getRegionServerInfoPort(metaLocation);
        if (sl != null) {
          Map map = sl.getRegionMetrics();
          if (map.containsKey(meta.getRegionName())) {
            RegionMetrics load = map.get(meta.getRegionName());
            readReq = String.format("%,1d", load.getReadRequestCount());
            writeReq = String.format("%,1d", load.getWriteRequestCount());
            fileSize = StringUtils.byteDesc((long) load.getStoreFileSize().get(Size.Unit.BYTE));
            fileCount = String.format("%,1d", load.getStoreFileCount());
            memSize = StringUtils.byteDesc((long) load.getMemStoreSize().get(Size.Unit.BYTE));
            locality = load.getDataLocality();
          }
        }
      }

      out.write("\n
\n  \n    \n    \n    \n    \n    \n    \n    \n    \n    \n");

      if (withReplica) {

      out.write("\n    \n");

      }

      out.write("\n\n");
  } 
      out.write('\n');
} 
      out.write("\n
Name
Region Server
ReadRequests
WriteRequests
StorefileSize
Num.Storefiles
MemSize
Locality
Start Key
End Key
");
      out.print( escapeXml(meta.getRegionNameAsString()) );
      out.write("
");
      out.print( StringEscapeUtils.escapeHtml4(hostAndPort) );
      out.write("
");
      out.print( readReq);
      out.write("
");
      out.print( writeReq);
      out.write("
");
      out.print( fileSize);
      out.write("
");
      out.print( fileCount);
      out.write("
");
      out.print( memSize);
      out.write("
");
      out.print( locality);
      out.write("
");
      out.print( escapeXml(Bytes.toString(meta.getStartKey())) );
      out.write("
");
      out.print( escapeXml(Bytes.toString(meta.getEndKey())) );
      out.write("
");
      out.print( meta.getReplicaId() );
      out.write("
\n");
} else {
  Admin admin = master.getConnection().getAdmin();
  RegionLocator r = master.getClusterConnection().getRegionLocator(table.getName());
  try { 
      out.write("\n
Table Attributes
\n\n  \n      \n      \n      \n  \n  \n      \n      \n      \n  \n  \n      \n      \n      \n  \n");
  if (showFragmentation) { 
      out.write("\n  \n      \n      \n      \n  \n");
  } 
      out.write('\n');

  if (quotasEnabled) {
    TableName tn = TableName.valueOf(fqtn);
    SpaceQuotaSnapshot masterSnapshot = null;
    Quotas quota = QuotaTableUtil.getTableQuota(master.getConnection(), tn);
    if (quota == null || !quota.hasSpace()) {
      quota = QuotaTableUtil.getNamespaceQuota(master.getConnection(), tn.getNamespaceAsString());
      if (quota != null) {
        masterSnapshot = QuotaTableUtil.getCurrentSnapshot(master.getConnection(), tn.getNamespaceAsString());
      }
    } else {
      masterSnapshot = QuotaTableUtil.getCurrentSnapshot(master.getConnection(), tn);
    }
    if (quota != null && quota.hasSpace()) {
      SpaceQuota spaceQuota = quota.getSpace();

      out.write("\n  \n    \n    \n    \n  \n");

    }
  }

      out.write("\n
Attribute Name
Value
Description
Enabled
");
      out.print( admin.isTableEnabled(table.getName()) );
      out.write("
Is the table enabled
Compaction
\n");

  try {
    CompactionState compactionState = admin.getCompactionState(table.getName());

      out.write('\n');
      out.print( compactionState );
      out.write('\n');

  } catch (Exception e) {
    // Nothing really to do here
    for(StackTraceElement element : e.getStackTrace()) {
      
      out.print( StringEscapeUtils.escapeHtml4(element.toString()) );

    }

      out.write(" Unknown ");

  }

      out.write("\n      
Is the table compacting
Fragmentation
");
      out.print( frags.get(fqtn) != null ? frags.get(fqtn).intValue() + "%" : "n/a" );
      out.write("
How fragmented is the table. After a major compaction it is 0%.
Space Quota
\n      \n        \n          \n          \n        \n        \n          \n          \n        \n        \n          \n          \n        \n");

      if (masterSnapshot != null) {

      out.write("\n        \n          \n          \n        \n        \n          \n          \n        \n");

      }

      out.write("\n      
Property
Value
Limit
");
      out.print( StringUtils.byteDesc(spaceQuota.getSoftLimit()) );
      out.write("
Policy
");
      out.print( spaceQuota.getViolationPolicy() );
      out.write("
Usage
");
      out.print( StringUtils.byteDesc(masterSnapshot.getUsage()) );
      out.write("
State
");
      out.print( masterSnapshot.getQuotaStatus().isInViolation() ? "In Violation" : "In Observance" );
      out.write("
\n    
Information about a Space Quota on this table, if set.
\n
Table Schema
\n\n  \n      \n      \n  \n  ");

    Collection families = table.getTableDescriptor().getFamilies();
    for (HColumnDescriptor family: families) {
  
      out.write("\n  \n    \n    \n  \n  ");
 } 
      out.write("\n
Column Name
");
      out.print( StringEscapeUtils.escapeHtml4(family.getNameAsString()) );
      out.write("
\n    \n      \n       \n       \n      \n    ");

    Map familyValues = family.getValues();
    for (Bytes familyKey: familyValues.keySet()) {
    
      out.write("\n      \n        \n        \n      \n    ");
 } 
      out.write("\n    
Property
Value
\n          ");
      out.print( StringEscapeUtils.escapeHtml4(familyKey.toString()) );
      out.write("\n\t\t
\n          ");
      out.print( StringEscapeUtils.escapeHtml4(familyValues.get(familyKey).toString()) );
      out.write("\n        
\n    
\n");

  long totalReadReq = 0;
  long totalWriteReq = 0;
  long totalSize = 0;
  long totalStoreFileCount = 0;
  long totalMemSize = 0;
  String urlRegionServer = null;
  Map regDistribution = new TreeMap<>();
  Map primaryRegDistribution = new TreeMap<>();
  List regions = r.getAllRegionLocations();
  Map regionsToLoad = new LinkedHashMap<>();
  Map regionsToServer = new LinkedHashMap<>();
  for (HRegionLocation hriEntry : regions) {
    RegionInfo regionInfo = hriEntry.getRegionInfo();
    ServerName addr = hriEntry.getServerName();
    regionsToServer.put(regionInfo, addr);

    if (addr != null) {
      ServerMetrics sl = master.getServerManager().getLoad(addr);
      if (sl != null) {
        RegionMetrics regionMetrics = sl.getRegionMetrics().get(regionInfo.getRegionName());
        regionsToLoad.put(regionInfo, regionMetrics);
        if(regionMetrics != null) {
          totalReadReq += regionMetrics.getReadRequestCount();
          totalWriteReq += regionMetrics.getWriteRequestCount();
          totalSize += regionMetrics.getStoreFileSize().get(Size.Unit.MEGABYTE);
          totalStoreFileCount += regionMetrics.getStoreFileCount();
          totalMemSize += regionMetrics.getMemStoreSize().get(Size.Unit.MEGABYTE);
          totalStoreFileSizeMB += regionMetrics.getStoreFileSize().get(Size.Unit.MEGABYTE);
        } else {
          RegionMetrics load0 = getEmptyRegionMetrics(regionInfo);
          regionsToLoad.put(regionInfo, load0);
        }
      } else{
        RegionMetrics load0 = getEmptyRegionMetrics(regionInfo);
        regionsToLoad.put(regionInfo, load0);
      }
    } else {
      RegionMetrics load0 = getEmptyRegionMetrics(regionInfo);
      regionsToLoad.put(regionInfo, load0);
    }
  }

  if(regions != null && regions.size() > 0) { 
      out.write("\n
Table Regions
\nSort As\n\nRegionName\nReadRequest\nWriteRequest\nStorefileSize\nNum.Storefiles\nMemstoreSize\nLocality\n\nAscending\nShowDetailName\n\n
\n\n
\n\n\n\n\n\n\n\n\n\n\n\n");

  if (withReplica) {

      out.write("\n\n");

  }

      out.write("\n\n\n");

  List> entryList = new ArrayList<>(regionsToLoad.entrySet());
  if(sortKey != null) {
    if (sortKey.equals("readrequest")) {
      Collections.sort(entryList, (entry1, entry2) -> {
        if (entry1 == null || entry1.getValue() == null) {
          return -1;
        } else if (entry2 == null || entry2.getValue() == null) {
          return 1;
        }
        int result = Long.compare(entry1.getValue().getReadRequestCount(),
                entry2.getValue().getReadRequestCount());
        if (reverseOrder) {
          result = -1 * result;
        }
        return result;
      });
    } else if (sortKey.equals("writerequest")) {
      Collections.sort(entryList, (entry1, entry2) -> {
        if (entry1 == null || entry1.getValue() == null) {
          return -1;
        } else if (entry2 == null || entry2.getValue() == null) {
          return 1;
        }
        int result = Long.compare(entry1.getValue().getWriteRequestCount(),
                entry2.getValue().getWriteRequestCount());
        if (reverseOrder) {
          result = -1 * result;
        }
        return result;
      });
    } else if (sortKey.equals("size")) {
      Collections.sort(entryList, (entry1, entry2) -> {
        if (entry1 == null || entry1.getValue() == null) {
          return -1;
        } else if (entry2 == null || entry2.getValue() == null) {
          return 1;
        }
        int result = Double.compare(entry1.getValue().getStoreFileSize().get(),
                entry2.getValue().getStoreFileSize().get());
        if (reverseOrder) {
          result = -1 * result;
        }
        return result;
      });
    } else if (sortKey.equals("filecount")) {
      Collections.sort(entryList, (entry1, entry2) -> {
        if (entry1 == null || entry1.getValue() == null) {
          return -1;
        } else if (entry2 == null || entry2.getValue() == null) {
          return 1;
        }
        int result = Integer.compare(entry1.getValue().getStoreCount(),
                entry2.getValue().getStoreCount());
        if (reverseOrder) {
          result = -1 * result;
        }
        return result;
      });
    } else if (sortKey.equals("memstore")) {
      Collections.sort(entryList, (entry1, entry2) -> {
        if (entry1 == null || entry1.getValue() == null) {
          return -1;
        } else if (entry2 == null || entry2.getValue() == null) {
          return 1;
        }
        int result = Double.compare(entry1.getValue().getMemStoreSize().get(),
                entry2.getValue().getMemStoreSize().get());
        if (reverseOrder) {
          result = -1 * result;
        }
        return result;
      });
    } else if (sortKey.equals("locality")) {
      Collections.sort(entryList, (entry1, entry2) -> {
        if (entry1 == null || entry1.getValue() == null) {
          return -1;
        } else if (entry2 == null || entry2.getValue() == null) {
          return 1;
        }
        int result = Double.compare(entry1.getValue().getDataLocality(),
                entry2.getValue().getDataLocality());
        if (reverseOrder) {
          result = -1 * result;
        }
        return result;
      });
    }
  }
  numRegions = regions.size();
  int numRegionsRendered = 0;
  // render all regions
  if (numRegionsToRender < 0) {
    numRegionsToRender = numRegions;
  }
  for (Map.Entry hriEntry : entryList) {
    RegionInfo regionInfo = hriEntry.getKey();
    ServerName addr = regionsToServer.get(regionInfo);
    RegionMetrics load = hriEntry.getValue();
    String readReq = "N/A";
    String writeReq = "N/A";
    String regionSize = "N/A";
    String fileCount = "N/A";
    String memSize = "N/A";
    float locality = 0.0f;
    if(load != null) {
      readReq = String.format("%,1d", load.getReadRequestCount());
      writeReq = String.format("%,1d", load.getWriteRequestCount());
      regionSize = StringUtils.byteDesc((long) load.getStoreFileSize().get(Size.Unit.BYTE));
      fileCount = String.format("%,1d", load.getStoreFileCount());
      memSize = StringUtils.byteDesc((long) load.getMemStoreSize().get(Size.Unit.BYTE));
      locality = load.getDataLocality();
    }

    if (addr != null) {
      ServerMetrics sl = master.getServerManager().getLoad(addr);
      // This port might be wrong if RS actually ended up using something else.
      urlRegionServer =
          "//" + URLEncoder.encode(addr.getHostname()) + ":" + master.getRegionServerInfoPort(addr) + "/";
      if(sl != null) {
        Integer i = regDistribution.get(addr);
        if (null == i) i = Integer.valueOf(0);
        regDistribution.put(addr, i + 1);
        if (withReplica && RegionReplicaUtil.isDefaultReplica(regionInfo.getReplicaId())) {
          i = primaryRegDistribution.get(addr);
          if (null == i) i = Integer.valueOf(0);
          primaryRegDistribution.put(addr, i+1);
        }
      }
    }
    if (numRegionsRendered < numRegionsToRender) {
      numRegionsRendered++;

      out.write("\n\n  \n  ");

  if (urlRegionServer != null) {
  
      out.write("\n  \n  ");

  } else {
  
      out.write("\n  \n  ");

  }
  
      out.write("\n  \n  \n  \n  \n  \n  \n  \n  \n  ");

  if (withReplica) {
  
      out.write("\n  \n  ");

  }
  
      out.write("\n\n");
 } 
      out.write('\n');
 } 
      out.write("\n
Name(");
      out.print( String.format("%,1d", regions.size()));
      out.write(")
Region Server
ReadRequests
(");
      out.print( String.format("%,1d", totalReadReq));
      out.write(")
WriteRequests
(");
      out.print( String.format("%,1d", totalWriteReq));
      out.write(")
StorefileSize
(");
      out.print( StringUtils.byteDesc(totalSize*1024l*1024));
      out.write(")
Num.Storefiles
(");
      out.print( String.format("%,1d", totalStoreFileCount));
      out.write(")
MemSize
(");
      out.print( StringUtils.byteDesc(totalMemSize*1024l*1024));
      out.write(")
Locality
Start Key
End Key
ReplicaID
");
      out.print( escapeXml(showWhole?Bytes.toStringBinary(regionInfo.getRegionName()):regionInfo.getEncodedName()) );
      out.write("
\n     ');
      out.print( StringEscapeUtils.escapeHtml4(addr.getHostname().toString()) + ":" + master.getRegionServerInfoPort(addr) );
      out.write("\n  
not deployed
");
      out.print( readReq);
      out.write("
");
      out.print( writeReq);
      out.write("
");
      out.print( regionSize);
      out.write("
");
      out.print( fileCount);
      out.write("
");
      out.print( memSize);
      out.write("
");
      out.print( locality);
      out.write("
");
      out.print( escapeXml(Bytes.toStringBinary(regionInfo.getStartKey())));
      out.write("
");
      out.print( escapeXml(Bytes.toStringBinary(regionInfo.getEndKey())));
      out.write("
");
      out.print( regionInfo.getReplicaId() );
      out.write("
\n");
 if (numRegions > numRegionsRendered) {
     String allRegionsUrl = "?name=" + URLEncoder.encode(fqtn,"UTF-8") + "&numRegions=all";

      out.write("\n  
This table has ");
      out.print( numRegions );
      out.write(" regions in total, in order to improve the page load time,\n     only ");
      out.print( numRegionsRendered );
      out.write(" regions are displayed here, click\n     here to see all regions.
\n");
 } 
      out.write("\n
Regions by Region Server
\n");

if (withReplica) {

      out.write("\n\n");

} else {

      out.write("\n
Region Server
Region Count
Primary Region Count
\n");

}

      out.write('\n');

  for (Map.Entry rdEntry : regDistribution.entrySet()) {
     ServerName addr = rdEntry.getKey();
     String url = "//" + URLEncoder.encode(addr.getHostname()) + ":" + master.getRegionServerInfoPort(addr) + "/";

      out.write("\n\n  \n  \n");

if (withReplica) {

      out.write("\n  \n");

}

      out.write("\n\n");
 } 
      out.write("\n
Region Server
Region Count
');
      out.print( StringEscapeUtils.escapeHtml4(addr.getHostname().toString()) + ":" + master.getRegionServerInfoPort(addr) );
      out.write("
");
      out.print( rdEntry.getValue());
      out.write("
");
      out.print( primaryRegDistribution.get(addr));
      out.write("
\n");
 }
} catch(Exception ex) {
  for(StackTraceElement element : ex.getStackTrace()) {
    
      out.print( StringEscapeUtils.escapeHtml4(element.toString()) );

  }
} finally {
  admin.close();
}
} // end else

      out.write("\n\n
Table Stats
\n\n  \n    \n    \n    \n  \n  \n    \n    \n    \n  \n
Name
Value
Description
Size
");
      out.print( StringUtils.TraditionalBinaryPrefix.long2String(totalStoreFileSizeMB * 1024 * 1024, "B", 2));
      out.write("
Total size of store files
\n\n");
 if (!readOnly) { 
      out.write("\n
\nActions:\n
\n
\n\n\n  \n  \n  \n  \n  \n  \n  \n\n\n  \n  \n  \n  \n  \n  \n  \n\n\n  \n  \n  \n  \n  \n  \n  \n\n
\n    \n  
\n    \n  
\n    This action will force a compaction of all regions of the table, or,\n    if a key is supplied, only the region containing the\n    given key.\n  
\n    \n  
\n    \n  
\n\t  This action will force a split of all eligible\n\t  regions of the table, or, if a key is supplied, only the region containing the\n\t  given key. An eligible region is one that does not contain any references to\n\t  other regions. Split requests for noneligible regions will be ignored.\n  
\n    \n  
\n    \n    \n  
\n    This action will merge two regions of the table, Merge requests for\n    noneligible regions will be ignored.\n  
\n\n
\n");
 } 
      out.write("\n