HBASE-788 Div by zero in Master.jsp (Clint Morgan via Jim Kellerman)
git-svn-id: https://svn.apache.org/repos/asf/hadoop/hbase/trunk@681525 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Jim Kellerman
parent
809180eef2
commit
344b6b774b
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@ -219,6 +219,7 @@ Release 0.2.0
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HBASE-780 Can't scan '.META.' from new shell
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HBASE-424 Should be able to enable/disable .META. table
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HBASE-771 Names legal in 0.1 are not in 0.2; breaks migration
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HBASE-788 Div by zero in Master.jsp (Clint Morgan via Jim Kellerman)
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IMPROVEMENTS
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HBASE-559 MR example job to count table rows
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@ -1,103 +1,106 @@
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<%@ page contentType="text/html;charset=UTF-8"
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import="java.util.*"
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import="org.apache.hadoop.io.Text"
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import="org.apache.hadoop.hbase.util.Bytes"
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import="org.apache.hadoop.hbase.master.HMaster"
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import="org.apache.hadoop.hbase.HConstants"
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import="org.apache.hadoop.hbase.master.MetaRegion"
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import="org.apache.hadoop.hbase.client.HBaseAdmin"
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import="org.apache.hadoop.hbase.HServerInfo"
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import="org.apache.hadoop.hbase.HServerAddress"
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import="org.apache.hadoop.hbase.HBaseConfiguration"
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import="org.apache.hadoop.hbase.HTableDescriptor" %><%
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HMaster master = (HMaster)getServletContext().getAttribute(HMaster.MASTER);
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HBaseConfiguration conf = master.getConfiguration();
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HServerAddress rootLocation = master.getRootRegionLocation();
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Map<byte [], MetaRegion> onlineRegions = master.getOnlineMetaRegions();
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Map<String, HServerInfo> serverToServerInfos =
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master.getServersToServerInfo();
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int interval = conf.getInt("hbase.regionserver.msginterval", 3000)/1000;
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%><?xml version="1.0" encoding="UTF-8" ?>
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
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"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml">
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<head><meta http-equiv="Content-Type" content="text/html;charset=UTF-8"/>
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<meta http-equiv="refresh" content="30"/>
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<title>HBase Master: <%= master.getMasterAddress().getHostname()%>:<%= master.getMasterAddress().getPort() %></title>
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<link rel="stylesheet" type="text/css" href="/static/hbase.css" />
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</head>
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<body>
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<a id="logo" href="http://wiki.apache.org/lucene-hadoop/Hbase"><img src="/static/hbase_logo_med.gif" alt="HBase Logo" title="HBase Logo" /></a>
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<h1 id="page_title">Master: <%=master.getMasterAddress().getHostname()%>:<%=master.getMasterAddress().getPort()%></h1>
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<p id="links_menu"><a href="/logs/">Local logs</a>, <a href="/stacks">Thread Dump</a>, <a href="/logLevel">Log Level</a></p>
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<hr id="head_rule" />
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<h2>Master Attributes</h2>
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<table>
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<tr><th>Attribute Name</th><th>Value</th><th>Description</th></tr>
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<tr><td>HBase Version</td><td><%= org.apache.hadoop.hbase.util.VersionInfo.getVersion() %>, r<%= org.apache.hadoop.hbase.util.VersionInfo.getRevision() %></td><td>HBase version and svn revision</td></tr>
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<tr><td>HBase Compiled</td><td><%= org.apache.hadoop.hbase.util.VersionInfo.getDate() %>, <%= org.apache.hadoop.hbase.util.VersionInfo.getUser() %></td><td>When HBase version was compiled and by whom</td></tr>
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<tr><td>Hadoop Version</td><td><%= org.apache.hadoop.util.VersionInfo.getVersion() %>, r<%= org.apache.hadoop.util.VersionInfo.getRevision() %></td><td>Hadoop version and svn revision</td></tr>
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<tr><td>Hadoop Compiled</td><td><%= org.apache.hadoop.util.VersionInfo.getDate() %>, <%= org.apache.hadoop.util.VersionInfo.getUser() %></td><td>When Hadoop version was compiled and by whom</td></tr>
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<tr><td>Filesystem</td><td><%= conf.get("fs.default.name") %></td><td>Filesystem HBase is running on</td></tr>
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<tr><td>HBase Root Directory</td><td><%= master.getRootDir().toString() %></td><td>Location of HBase home directory</td></tr>
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<tr><td>Load average</td><td><%= master.getAverageLoad() %></td><td>Average load across all region servers. Naive computation.</td></tr>
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</table>
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<h2>Catalog Tables</h2>
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<%
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if (rootLocation != null) { %>
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<table>
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<tr><th>Table</th><th>Description</th></tr>
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<tr><td><a href=/table.jsp?name=<%= Bytes.toString(HConstants.ROOT_TABLE_NAME) %>><%= Bytes.toString(HConstants.ROOT_TABLE_NAME) %></a></td><td>The -ROOT- table holds references to all .META. regions.</td></tr>
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<%
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if (onlineRegions != null && onlineRegions.size() > 0) { %>
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<tr><td><a href=/table.jsp?name=<%= Bytes.toString(HConstants.META_TABLE_NAME) %>><%= Bytes.toString(HConstants.META_TABLE_NAME) %></a></td><td>The .META. table holds references to all User Table regions</td></tr>
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<% } %>
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</table>
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<%} %>
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<h2>User Tables</h2>
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<% HTableDescriptor[] tables = new HBaseAdmin(conf).listTables();
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if(tables != null && tables.length > 0) { %>
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<table>
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<tr><th>Table</th><th>Description</th></tr>
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<% for(HTableDescriptor htDesc : tables ) { %>
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<tr><td><a href=/table.jsp?name=<%= htDesc.getNameAsString() %>><%= htDesc.getNameAsString() %></a> </td><td><%= htDesc.toString() %></td></tr>
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<% } %>
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<p> <%= tables.length %> table(s) in set.</p>
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</table>
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<% } %>
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<h2>Region Servers</h2>
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<% if (serverToServerInfos != null && serverToServerInfos.size() > 0) { %>
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<% int totalRegions = 0;
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int totalRequests = 0;
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%>
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<table>
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<tr><th rowspan=<%= serverToServerInfos.size() + 1%>></th><th>Address</th><th>Start Code</th><th>Load</th></tr>
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<% String[] serverNames = serverToServerInfos.keySet().toArray(new String[serverToServerInfos.size()]);
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Arrays.sort(serverNames);
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for (String serverName: serverNames) {
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HServerInfo hsi = serverToServerInfos.get(serverName);
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String url = "http://" +
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hsi.getServerAddress().getHostname().toString() + ":" +
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hsi.getInfoPort() + "/";
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String hostname = hsi.getServerAddress().getHostname() + ":" + hsi.getServerAddress().getPort();
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totalRegions += hsi.getLoad().getNumberOfRegions();
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totalRequests += hsi.getLoad().getNumberOfRequests() / interval;
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long startCode = hsi.getStartCode();
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%>
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<tr><td><a href="<%= url %>"><%= hostname %></a></td><td><%= startCode %></td><td><%= hsi.getLoad().toString(interval) %></td></tr>
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<% } %>
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<tr><th>Total: </th><td>servers: <%= serverToServerInfos.size() %></td><td> </td><td>requests: <%= totalRequests %> regions: <%= totalRegions %></td></tr>
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</table>
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<p>Load is requests per second and count of regions loaded</p>
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<% } %>
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</body>
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</html>
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<%@ page contentType="text/html;charset=UTF-8"
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import="java.util.*"
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import="org.apache.hadoop.io.Text"
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import="org.apache.hadoop.hbase.util.Bytes"
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import="org.apache.hadoop.hbase.master.HMaster"
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import="org.apache.hadoop.hbase.HConstants"
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import="org.apache.hadoop.hbase.master.MetaRegion"
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import="org.apache.hadoop.hbase.client.HBaseAdmin"
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import="org.apache.hadoop.hbase.HServerInfo"
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import="org.apache.hadoop.hbase.HServerAddress"
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import="org.apache.hadoop.hbase.HBaseConfiguration"
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import="org.apache.hadoop.hbase.HTableDescriptor" %><%
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HMaster master = (HMaster)getServletContext().getAttribute(HMaster.MASTER);
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HBaseConfiguration conf = master.getConfiguration();
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HServerAddress rootLocation = master.getRootRegionLocation();
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Map<byte [], MetaRegion> onlineRegions = master.getOnlineMetaRegions();
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Map<String, HServerInfo> serverToServerInfos =
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master.getServersToServerInfo();
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int interval = conf.getInt("hbase.regionserver.msginterval", 3000)/1000;
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if (interval == 0) {
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interval = 1;
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}
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%><?xml version="1.0" encoding="UTF-8" ?>
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
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"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml">
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<head><meta http-equiv="Content-Type" content="text/html;charset=UTF-8"/>
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<meta http-equiv="refresh" content="30"/>
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<title>HBase Master: <%= master.getMasterAddress().getHostname()%>:<%= master.getMasterAddress().getPort() %></title>
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<link rel="stylesheet" type="text/css" href="/static/hbase.css" />
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</head>
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<body>
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<a id="logo" href="http://wiki.apache.org/lucene-hadoop/Hbase"><img src="/static/hbase_logo_med.gif" alt="HBase Logo" title="HBase Logo" /></a>
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<h1 id="page_title">Master: <%=master.getMasterAddress().getHostname()%>:<%=master.getMasterAddress().getPort()%></h1>
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<p id="links_menu"><a href="/logs/">Local logs</a>, <a href="/stacks">Thread Dump</a>, <a href="/logLevel">Log Level</a></p>
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<hr id="head_rule" />
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<h2>Master Attributes</h2>
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<table>
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<tr><th>Attribute Name</th><th>Value</th><th>Description</th></tr>
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<tr><td>HBase Version</td><td><%= org.apache.hadoop.hbase.util.VersionInfo.getVersion() %>, r<%= org.apache.hadoop.hbase.util.VersionInfo.getRevision() %></td><td>HBase version and svn revision</td></tr>
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<tr><td>HBase Compiled</td><td><%= org.apache.hadoop.hbase.util.VersionInfo.getDate() %>, <%= org.apache.hadoop.hbase.util.VersionInfo.getUser() %></td><td>When HBase version was compiled and by whom</td></tr>
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<tr><td>Hadoop Version</td><td><%= org.apache.hadoop.util.VersionInfo.getVersion() %>, r<%= org.apache.hadoop.util.VersionInfo.getRevision() %></td><td>Hadoop version and svn revision</td></tr>
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<tr><td>Hadoop Compiled</td><td><%= org.apache.hadoop.util.VersionInfo.getDate() %>, <%= org.apache.hadoop.util.VersionInfo.getUser() %></td><td>When Hadoop version was compiled and by whom</td></tr>
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<tr><td>Filesystem</td><td><%= conf.get("fs.default.name") %></td><td>Filesystem HBase is running on</td></tr>
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<tr><td>HBase Root Directory</td><td><%= master.getRootDir().toString() %></td><td>Location of HBase home directory</td></tr>
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<tr><td>Load average</td><td><%= master.getAverageLoad() %></td><td>Average load across all region servers. Naive computation.</td></tr>
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</table>
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<h2>Catalog Tables</h2>
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<%
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if (rootLocation != null) { %>
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<table>
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<tr><th>Table</th><th>Description</th></tr>
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<tr><td><a href=/table.jsp?name=<%= Bytes.toString(HConstants.ROOT_TABLE_NAME) %>><%= Bytes.toString(HConstants.ROOT_TABLE_NAME) %></a></td><td>The -ROOT- table holds references to all .META. regions.</td></tr>
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<%
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if (onlineRegions != null && onlineRegions.size() > 0) { %>
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<tr><td><a href=/table.jsp?name=<%= Bytes.toString(HConstants.META_TABLE_NAME) %>><%= Bytes.toString(HConstants.META_TABLE_NAME) %></a></td><td>The .META. table holds references to all User Table regions</td></tr>
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<% } %>
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</table>
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<%} %>
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<h2>User Tables</h2>
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<% HTableDescriptor[] tables = new HBaseAdmin(conf).listTables();
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if(tables != null && tables.length > 0) { %>
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<table>
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<tr><th>Table</th><th>Description</th></tr>
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<% for(HTableDescriptor htDesc : tables ) { %>
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<tr><td><a href=/table.jsp?name=<%= htDesc.getNameAsString() %>><%= htDesc.getNameAsString() %></a> </td><td><%= htDesc.toString() %></td></tr>
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<% } %>
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<p> <%= tables.length %> table(s) in set.</p>
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</table>
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<% } %>
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<h2>Region Servers</h2>
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<% if (serverToServerInfos != null && serverToServerInfos.size() > 0) { %>
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<% int totalRegions = 0;
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int totalRequests = 0;
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%>
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<table>
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<tr><th rowspan=<%= serverToServerInfos.size() + 1%>></th><th>Address</th><th>Start Code</th><th>Load</th></tr>
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<% String[] serverNames = serverToServerInfos.keySet().toArray(new String[serverToServerInfos.size()]);
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Arrays.sort(serverNames);
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for (String serverName: serverNames) {
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HServerInfo hsi = serverToServerInfos.get(serverName);
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String url = "http://" +
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hsi.getServerAddress().getHostname().toString() + ":" +
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hsi.getInfoPort() + "/";
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String hostname = hsi.getServerAddress().getHostname() + ":" + hsi.getServerAddress().getPort();
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totalRegions += hsi.getLoad().getNumberOfRegions();
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totalRequests += hsi.getLoad().getNumberOfRequests() / interval;
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long startCode = hsi.getStartCode();
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%>
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<tr><td><a href="<%= url %>"><%= hostname %></a></td><td><%= startCode %></td><td><%= hsi.getLoad().toString(interval) %></td></tr>
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<% } %>
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<tr><th>Total: </th><td>servers: <%= serverToServerInfos.size() %></td><td> </td><td>requests: <%= totalRequests %> regions: <%= totalRegions %></td></tr>
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</table>
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<p>Load is requests per second and count of regions loaded</p>
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<% } %>
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</body>
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</html>
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