<%@ page
contentType="text/html; charset=UTF-8"
import="javax.servlet.*"
import="javax.servlet.http.*"
import="java.io.*"
import="java.util.*"
import="org.apache.hadoop.dfs.*"
import="org.apache.hadoop.util.*"
import="java.text.DateFormat"
import="java.net.InetAddress"
import="java.net.URLEncoder"
%>
<%!
FSNamesystem fsn = FSNamesystem.getFSNamesystem();
public void redirectToRandomDataNode(HttpServletResponse resp) throws IOException {
String datanode = fsn.randomDataNode();
String redirectLocation;
String nodeToRedirect;
int redirectPort;
if (datanode != null) {
redirectPort = Integer.parseInt(datanode.substring(datanode.indexOf(':') + 1));
nodeToRedirect = datanode.substring(0, datanode.indexOf(':'));
}
else {
nodeToRedirect = fsn.getDFSNameNodeMachine();
redirectPort = fsn.getNameNodeInfoPort();
}
String fqdn = InetAddress.getByName(nodeToRedirect).getCanonicalHostName();
redirectLocation = "http://" + fqdn + ":" + redirectPort +
"/browseDirectory.jsp?namenodeInfoPort=" +
fsn.getNameNodeInfoPort() +
"&dir=" + URLEncoder.encode("/", "UTF-8");
resp.sendRedirect(redirectLocation);
}
%>
<%
redirectToRandomDataNode(response);
%>
Local logs
Log directory
<%
out.println(ServletUtil.htmlFooter());
%>