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.apache.jasper.runtime.ResourceInjector)
application.getAttribute("com.sun.appserv.jsp.resource.injector");
out.write('\n');
out.write('\n');
out.write("\n<!DOCTYPE html>\n<html>\n<head>\n");
JspHelper.createTitle(out, request, request.getParameter("filename"));
out.write("\n</head>\n<body onload=\"document.goto.dir.focus()\">\n");
Configuration conf = (Configuration) getServletContext().getAttribute(JspHelper.CURRENT_CONF);
generateFileChunks(out, request, conf);
out.write("\n<hr>\n");
generateFileDetails(out, request, conf);
out.write("\n\n<h2>Local logs</h2>\n<a href=\"/logs/\">Log</a> directory\n\n");
out.println(ServletUtil.htmlFooter());
out.write('\n');
} catch (Throwable t) {
if (!(t instanceof SkipPageException)) {
out = _jspx_out;
if (out != null && out.getBufferSize() != 0) out.clearBuffer();
if (_jspx_page_context != null) _jspx_page_context.handlePageException(t);
}
} finally {
_jspxFactory.releasePageContext(_jspx_page_context);
}
}
public void _jspService(HttpServletRequest request, HttpServletResponse response)
throws java.io.IOException, ServletException {
JspFactory _jspxFactory = null;
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 {
_jspxFactory = JspFactory.getDefaultFactory();
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;
out.write('\n');
out.write('\n');
out.write("\n\n\n\n<html>\n<head>\n");
JspHelper.createTitle(out, request, request.getParameter("filename"));
out.write("\n</head>\n<body>\n<form action=\"/tail.jsp\" method=\"GET\">\n");
generateFileChunks(out, request);
out.write("\n</form>\n<hr>\n\n<h2>Local logs</h2>\n<a href=\"/logs/\">Log</a> directory\n\n");
out.println(ServletUtil.htmlFooter());
out.write('\n');
} catch (Throwable t) {
if (!(t instanceof SkipPageException)) {
out = _jspx_out;
if (out != null && out.getBufferSize() != 0) out.clearBuffer();
if (_jspx_page_context != null) _jspx_page_context.handlePageException(t);
}
} finally {
if (_jspxFactory != null) _jspxFactory.releasePageContext(_jspx_page_context);
}
}
/** Create a redirection URL */
private URL createRedirectURL(
String path,
String encodedPath,
HdfsFileStatus status,
UserGroupInformation ugi,
ClientProtocol nnproxy,
HttpServletRequest request,
String dt)
throws IOException {
String scheme = request.getScheme();
final LocatedBlocks blks =
nnproxy.getBlockLocations(status.getFullPath(new Path(path)).toUri().getPath(), 0, 1);
final Configuration conf = NameNodeHttpServer.getConfFromContext(getServletContext());
final DatanodeID host = pickSrcDatanode(blks, status, conf);
final String hostname;
if (host instanceof DatanodeInfo) {
hostname = host.getHostName();
} else {
hostname = host.getIpAddr();
}
int port = "https".equals(scheme) ? host.getInfoSecurePort() : host.getInfoPort();
String dtParam = "";
if (dt != null) {
dtParam = JspHelper.getDelegationTokenUrlParam(dt);
}
// Add namenode address to the url params
NameNode nn = NameNodeHttpServer.getNameNodeFromContext(getServletContext());
String addr = nn.getNameNodeAddressHostPortString();
String addrParam = JspHelper.getUrlParam(JspHelper.NAMENODE_ADDRESS, addr);
return new URL(
scheme,
hostname,
port,
"/streamFile"
+ encodedPath
+ '?'
+ "ugi="
+ ServletUtil.encodeQueryValue(ugi.getShortUserName())
+ dtParam
+ addrParam);
}
/** Build a map from the query string, setting values and defaults. */
protected Map<String, String> buildRoot(HttpServletRequest request, XMLOutputter doc) {
final String path = ServletUtil.getDecodedPath(request, "/listPaths");
final String exclude =
request.getParameter("exclude") != null ? request.getParameter("exclude") : "\\..*\\.crc";
final String filter =
request.getParameter("filter") != null ? request.getParameter("filter") : ".*";
final boolean recur =
request.getParameter("recursive") != null
&& "yes".equals(request.getParameter("recursive"));
Map<String, String> root = new HashMap<String, String>();
root.put("path", path);
root.put("recursive", recur ? "yes" : "no");
root.put("filter", filter);
root.put("exclude", exclude);
root.put("time", df.get().format(new Date()));
root.put("version", VersionInfo.getVersion());
return root;
}
private void testDataNodeRedirect(Path path) throws IOException {
// Create the file
if (hdfs.exists(path)) {
hdfs.delete(path, true);
}
FSDataOutputStream out = hdfs.create(path, (short) 1);
out.writeBytes("0123456789");
out.close();
// Get the path's block location so we can determine
// if we were redirected to the right DN.
FileStatus status = hdfs.getFileStatus(path);
BlockLocation[] locations = hdfs.getFileBlockLocations(status, 0, 10);
String locationName = locations[0].getNames()[0];
// Connect to the NN to get redirected
URL u =
hftpFs.getNamenodeURL(
"/data" + ServletUtil.encodePath(path.toUri().getPath()), "ugi=userx,groupy");
HttpURLConnection conn = (HttpURLConnection) u.openConnection();
HttpURLConnection.setFollowRedirects(true);
conn.connect();
conn.getInputStream();
boolean checked = false;
// Find the datanode that has the block according to locations
// and check that the URL was redirected to this DN's info port
for (DataNode node : cluster.getDataNodes()) {
DatanodeRegistration dnR = node.dnRegistration;
if (dnR.getName().equals(locationName)) {
checked = true;
assertEquals(dnR.getInfoPort(), conn.getURL().getPort());
}
}
assertTrue(
"The test never checked that location of " + "the block and hftp desitnation are the same",
checked);
}
@SuppressWarnings("unchecked")
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
final String path = ServletUtil.getDecodedPath(request, "/streamFile");
final String rawPath = ServletUtil.getRawPath(request, "/streamFile");
final String filename = JspHelper.validatePath(path);
final String rawFilename = JspHelper.validatePath(rawPath);
if (filename == null) {
response.setContentType("text/plain");
PrintWriter out = response.getWriter();
out.print("Invalid input");
return;
}
Enumeration<String> reqRanges = request.getHeaders("Range");
if (reqRanges != null && !reqRanges.hasMoreElements()) {
reqRanges = null;
}
DFSClient dfs;
try {
dfs = getDFSClient(request);
} catch (InterruptedException e) {
response.sendError(400, e.getMessage());
return;
}
DFSInputStream in = null;
OutputStream out = null;
try {
in = dfs.open(filename);
out = response.getOutputStream();
final long fileLen = in.getFileLength();
if (reqRanges != null) {
List<InclusiveByteRange> ranges = InclusiveByteRange.satisfiableRanges(reqRanges, fileLen);
StreamFile.sendPartialData(in, out, response, fileLen, ranges);
} else {
// No ranges, so send entire file
response.setHeader("Content-Disposition", "attachment; filename=\"" + rawFilename + "\"");
response.setContentType("application/octet-stream");
response.setHeader(CONTENT_LENGTH, "" + fileLen);
StreamFile.copyFromOffset(in, out, 0L, fileLen);
}
in.close();
in = null;
out.close();
out = null;
dfs.close();
dfs = null;
} catch (IOException ioe) {
if (LOG.isDebugEnabled()) {
LOG.debug("response.isCommitted()=" + response.isCommitted(), ioe);
}
throw ioe;
} finally {
IOUtils.cleanup(LOG, in);
IOUtils.cleanup(LOG, out);
IOUtils.cleanup(LOG, dfs);
}
}
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.apache.jasper.runtime.ResourceInjector)
application.getAttribute("com.sun.appserv.jsp.resource.injector");
out.write('\n');
JobTracker tracker = (JobTracker) application.getAttribute("job.tracker");
ClusterStatus status = tracker.getClusterStatus();
String trackerName = StringUtils.simpleHostname(tracker.getJobTrackerMachine());
out.write("\n<html>\n<head>\n<title>");
out.print(trackerName);
out.write(
" Hadoop Locality Statistics</title>\n<link rel=\"stylesheet\" type=\"text/css\" href=\"/static/hadoop.css\">\n</head>\n<body>\n<h1>");
out.print(trackerName);
out.write(" Hadoop Locality Statistics</h1>\n\n<b>State:</b> ");
out.print(status.getJobTrackerState());
out.write("<br>\n<b>Started:</b> ");
out.print(new Date(tracker.getStartTime()));
out.write("<br>\n<b>Version:</b> ");
out.print(VersionInfo.getVersion());
out.write(",\n r");
out.print(VersionInfo.getRevision());
out.write("<br>\n<b>Compiled:</b> ");
out.print(VersionInfo.getDate());
out.write(" by\n ");
out.print(VersionInfo.getUser());
out.write("<br>\n<b>Identifier:</b> ");
out.print(tracker.getTrackerIdentifier());
out.write("<br>\n\n<hr>\n\n");
Collection<JobInProgress> jobs = new ArrayList<JobInProgress>();
jobs.addAll(tracker.completedJobs());
jobs.addAll(tracker.runningJobs());
jobs.addAll(tracker.failedJobs());
int dataLocalMaps = 0;
int rackLocalMaps = 0;
int totalMaps = 0;
int totalReduces = 0;
for (JobInProgress job : jobs) {
Counters counters = job.getCounters();
dataLocalMaps += counters.getCounter(JobInProgress.Counter.DATA_LOCAL_MAPS);
rackLocalMaps += counters.getCounter(JobInProgress.Counter.RACK_LOCAL_MAPS);
totalMaps += counters.getCounter(JobInProgress.Counter.TOTAL_LAUNCHED_MAPS);
totalReduces += counters.getCounter(JobInProgress.Counter.TOTAL_LAUNCHED_REDUCES);
}
int dataLocalMapPct = totalMaps == 0 ? 0 : (100 * dataLocalMaps) / totalMaps;
int rackLocalMapPct = totalMaps == 0 ? 0 : (100 * rackLocalMaps) / totalMaps;
int dataRackLocalMapPct =
totalMaps == 0 ? 0 : (100 * (dataLocalMaps + rackLocalMaps)) / totalMaps;
out.write("\n<p>\n<b>Data Local Maps:</b> ");
out.print(dataLocalMaps);
out.write(' ');
out.write('(');
out.print(dataLocalMapPct);
out.write("%) <br>\n<b>Rack Local Maps:</b> ");
out.print(rackLocalMaps);
out.write(' ');
out.write('(');
out.print(rackLocalMapPct);
out.write("%) <br>\n<b>Data or Rack Local:</b> ");
out.print(dataLocalMaps + rackLocalMaps);
out.write(' ');
out.write('(');
out.print(dataRackLocalMapPct);
out.write("%) <br>\n<b>Total Maps:</b> ");
out.print(totalMaps);
out.write(" <br>\n<b>Total Reduces:</b> ");
out.print(totalReduces);
out.write(" <br>\n</p>\n\n");
out.println(ServletUtil.htmlFooter());
out.write('\n');
} catch (Throwable t) {
if (!(t instanceof SkipPageException)) {
out = _jspx_out;
if (out != null && out.getBufferSize() != 0) out.clearBuffer();
if (_jspx_page_context != null) _jspx_page_context.handlePageException(t);
}
} finally {
_jspxFactory.releasePageContext(_jspx_page_context);
}
}
static void generateFileDetails(JspWriter out, HttpServletRequest req, Configuration conf)
throws IOException, InterruptedException {
long startOffset = 0;
int datanodePort;
final Long blockId = JspHelper.validateLong(req.getParameter("blockId"));
if (blockId == null) {
out.print("Invalid input (blockId absent)");
return;
}
String tokenString = req.getParameter(JspHelper.DELEGATION_PARAMETER_NAME);
UserGroupInformation ugi = JspHelper.getUGI(req, conf);
String datanodePortStr = req.getParameter("datanodePort");
if (datanodePortStr == null) {
out.print("Invalid input (datanodePort absent)");
return;
}
datanodePort = Integer.parseInt(datanodePortStr);
final Long genStamp = JspHelper.validateLong(req.getParameter("genstamp"));
if (genStamp == null) {
out.print("Invalid input (genstamp absent)");
return;
}
String namenodeInfoPortStr = req.getParameter("namenodeInfoPort");
int namenodeInfoPort = -1;
if (namenodeInfoPortStr != null) namenodeInfoPort = Integer.parseInt(namenodeInfoPortStr);
final String nnAddr = req.getParameter(JspHelper.NAMENODE_ADDRESS);
if (nnAddr == null) {
out.print(JspHelper.NAMENODE_ADDRESS + " url param is null");
return;
}
final int chunkSizeToView =
JspHelper.string2ChunkSizeToView(
req.getParameter("chunkSizeToView"), getDefaultChunkSize(conf));
String startOffsetStr = req.getParameter("startOffset");
if (startOffsetStr == null || Long.parseLong(startOffsetStr) < 0) startOffset = 0;
else startOffset = Long.parseLong(startOffsetStr);
String path = StringEscapeUtils.unescapeHtml(req.getParameter("filename"));
if (path == null) {
path = req.getPathInfo() == null ? "/" : req.getPathInfo();
}
final String filename = JspHelper.validatePath(path);
if (filename == null) {
out.print("Invalid input");
return;
}
final String blockSizeStr = req.getParameter("blockSize");
if (blockSizeStr == null || blockSizeStr.length() == 0) {
out.print("Invalid input");
return;
}
long blockSize = Long.parseLong(blockSizeStr);
final DFSClient dfs = getDFSClient(ugi, nnAddr, conf);
List<LocatedBlock> blocks =
dfs.getNamenode().getBlockLocations(filename, 0, Long.MAX_VALUE).getLocatedBlocks();
// Add the various links for looking at the file contents
// URL for downloading the full file
String downloadUrl =
"http://"
+ req.getServerName()
+ ":"
+ req.getServerPort()
+ "/streamFile"
+ ServletUtil.encodePath(filename)
+ JspHelper.getUrlParam(JspHelper.NAMENODE_ADDRESS, nnAddr, true)
+ JspHelper.getDelegationTokenUrlParam(tokenString);
out.print("<a name=\"viewOptions\"></a>");
out.print("<a href=\"" + downloadUrl + "\">Download this file</a><br>");
DatanodeInfo chosenNode;
// URL for TAIL
LocatedBlock lastBlk = blocks.get(blocks.size() - 1);
try {
chosenNode = JspHelper.bestNode(lastBlk, conf);
} catch (IOException e) {
out.print(e.toString());
dfs.close();
return;
}
String fqdn = canonicalize(chosenNode.getIpAddr());
String tailUrl =
"http://"
+ fqdn
+ ":"
+ chosenNode.getInfoPort()
+ "/tail.jsp?filename="
+ URLEncoder.encode(filename, "UTF-8")
+ "&namenodeInfoPort="
+ namenodeInfoPort
+ "&chunkSizeToView="
+ chunkSizeToView
+ JspHelper.getDelegationTokenUrlParam(tokenString)
+ JspHelper.getUrlParam(JspHelper.NAMENODE_ADDRESS, nnAddr)
+ "&referrer="
+ URLEncoder.encode(req.getRequestURL() + "?" + req.getQueryString(), "UTF-8");
out.print("<a href=\"" + tailUrl + "\">Tail this file</a><br>");
out.print("<form action=\"/browseBlock.jsp\" method=GET>");
out.print("<b>Chunk size to view (in bytes, up to file's DFS block size): </b>");
out.print("<input type=\"hidden\" name=\"blockId\" value=\"" + blockId + "\">");
out.print("<input type=\"hidden\" name=\"blockSize\" value=\"" + blockSize + "\">");
out.print("<input type=\"hidden\" name=\"startOffset\" value=\"" + startOffset + "\">");
out.print("<input type=\"hidden\" name=\"filename\" value=\"" + filename + "\">");
out.print("<input type=\"hidden\" name=\"genstamp\" value=\"" + genStamp + "\">");
out.print("<input type=\"hidden\" name=\"datanodePort\" value=\"" + datanodePort + "\">");
out.print(
"<input type=\"hidden\" name=\"namenodeInfoPort\" value=\"" + namenodeInfoPort + "\">");
out.print(
"<input type=\"hidden\" name=\""
+ JspHelper.NAMENODE_ADDRESS
+ "\" value=\""
+ nnAddr
+ "\">");
out.print(
"<input type=\"text\" name=\"chunkSizeToView\" value="
+ chunkSizeToView
+ " size=10 maxlength=10>");
out.print(" <input type=\"submit\" name=\"submit\" value=\"Refresh\">");
out.print("</form>");
out.print("<hr>");
out.print("<a name=\"blockDetails\"></a>");
out.print("<B>Total number of blocks: " + blocks.size() + "</B><br>");
// generate a table and dump the info
out.println("\n<table>");
String nnCanonicalName = canonicalize(nnAddr);
for (LocatedBlock cur : blocks) {
out.print("<tr>");
final String blockidstring = Long.toString(cur.getBlock().getBlockId());
blockSize = cur.getBlock().getNumBytes();
out.print("<td>" + blockidstring + ":</td>");
DatanodeInfo[] locs = cur.getLocations();
for (int j = 0; j < locs.length; j++) {
String datanodeAddr = locs[j].getXferAddr();
datanodePort = locs[j].getXferPort();
fqdn = canonicalize(locs[j].getIpAddr());
String blockUrl =
"http://"
+ fqdn
+ ":"
+ locs[j].getInfoPort()
+ "/browseBlock.jsp?blockId="
+ blockidstring
+ "&blockSize="
+ blockSize
+ "&filename="
+ URLEncoder.encode(filename, "UTF-8")
+ "&datanodePort="
+ datanodePort
+ "&genstamp="
+ cur.getBlock().getGenerationStamp()
+ "&namenodeInfoPort="
+ namenodeInfoPort
+ "&chunkSizeToView="
+ chunkSizeToView
+ JspHelper.getDelegationTokenUrlParam(tokenString)
+ JspHelper.getUrlParam(JspHelper.NAMENODE_ADDRESS, nnAddr);
String blockInfoUrl =
"http://"
+ nnCanonicalName
+ ":"
+ namenodeInfoPort
+ "/block_info_xml.jsp?blockId="
+ blockidstring;
out.print(
"<td> </td><td><a href=\""
+ blockUrl
+ "\">"
+ datanodeAddr
+ "</a></td><td>"
+ "<a href=\""
+ blockInfoUrl
+ "\">View Block Info</a></td>");
}
out.println("</tr>");
}
out.println("</table>");
out.print("<hr>");
out.print(
"<br><a href=\"http://"
+ nnCanonicalName
+ ":"
+ namenodeInfoPort
+ "/dfshealth.jsp\">Go back to DFS home</a>");
dfs.close();
}
/**
* Service a GET request as described below. Request: {@code GET
* http://<nn>:<port>/listPaths[/<path>][<?option>[&option]*] HTTP/1.1 }
*
* <p>Where <i>option</i> (default) in: recursive ("no") filter (".*") exclude
* ("\..*\.crc")
*
* <p>Response: A flat list of files/directories in the following format: {@code <listing
* path="..." recursive="(yes|no)" filter="..." time="yyyy-MM-dd hh:mm:ss UTC" version="...">
* <directory path="..." modified="yyyy-MM-dd hh:mm:ss"/> <file path="..."
* modified="yyyy-MM-dd'T'hh:mm:ssZ" accesstime="yyyy-MM-dd'T'hh:mm:ssZ" blocksize="..."
* replication="..." size="..."/> </listing> }
*/
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
final PrintWriter out = response.getWriter();
final XMLOutputter doc = new XMLOutputter(out, "UTF-8");
final Map<String, String> root = buildRoot(request, doc);
final String path = root.get("path");
final String filePath = ServletUtil.getDecodedPath(request, "/listPaths");
try {
final boolean recur = "yes".equals(root.get("recursive"));
final Pattern filter = Pattern.compile(root.get("filter"));
final Pattern exclude = Pattern.compile(root.get("exclude"));
final Configuration conf =
(Configuration) getServletContext().getAttribute(JspHelper.CURRENT_CONF);
getUGI(request, conf)
.doAs(
new PrivilegedExceptionAction<Void>() {
@Override
public Void run() throws IOException {
ClientProtocol nn = createNameNodeProxy();
doc.declaration();
doc.startTag("listing");
for (Map.Entry<String, String> m : root.entrySet()) {
doc.attribute(m.getKey(), m.getValue());
}
HdfsFileStatus base = nn.getFileInfo(filePath);
if ((base != null) && base.isDir()) {
writeInfo(path, base, doc);
}
Stack<String> pathstack = new Stack<String>();
pathstack.push(path);
while (!pathstack.empty()) {
String p = pathstack.pop();
try {
byte[] lastReturnedName = HdfsFileStatus.EMPTY_NAME;
DirectoryListing thisListing;
do {
assert lastReturnedName != null;
thisListing = nn.getListing(p, lastReturnedName);
if (thisListing == null) {
if (lastReturnedName.length == 0) {
LOG.warn("ListPathsServlet - Path " + p + " does not exist");
}
break;
}
HdfsFileStatus[] listing = thisListing.getPartialListing();
for (HdfsFileStatus i : listing) {
String localName = i.getLocalName();
if (exclude.matcher(localName).matches()
|| !filter.matcher(localName).matches()) {
continue;
}
if (recur && i.isDir()) {
pathstack.push(new Path(p, localName).toUri().getPath());
}
writeInfo(p, i, doc);
}
lastReturnedName = thisListing.getLastName();
} while (thisListing.hasMore());
} catch (IOException re) {
writeXml(re, p, doc);
}
}
return null;
}
});
} catch (IOException ioe) {
writeXml(ioe, path, doc);
} catch (InterruptedException e) {
LOG.warn("ListPathServlet encountered InterruptedException", e);
response.sendError(400, e.getMessage());
} finally {
if (doc != null) {
doc.endDocument();
}
if (out != null) {
out.close();
}
}
}
public void _jspService(HttpServletRequest request, HttpServletResponse response)
throws java.io.IOException, ServletException {
JspFactory _jspxFactory = null;
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 {
_jspxFactory = JspFactory.getDefaultFactory();
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;
/*
* 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.
*/
out.write('\n');
out.write('\n');
out.write('\n');
final NamenodeJspHelper.NodeListJsp nodelistjsp = new NamenodeJspHelper.NodeListJsp();
NameNode nn = (NameNode) application.getAttribute("name.node");
String namenodeRole = nn.getRole().toString();
FSNamesystem fsn = nn.getNamesystem();
String namenodeLabel =
nn.getNameNodeAddress().getHostName() + ":" + nn.getNameNodeAddress().getPort();
out.write(
"\n\n<html>\n\n<link rel=\"stylesheet\" type=\"text/css\" href=\"/static/hadoop.css\">\n<title>Hadoop ");
out.print(namenodeRole);
out.write(' ');
out.print(namenodeLabel);
out.write("</title>\n \n<body>\n<h1>");
out.print(namenodeRole);
out.write(' ');
out.write('\'');
out.print(namenodeLabel);
out.write("'</h1>\n");
out.print(NamenodeJspHelper.getVersionTable(fsn));
out.write(
"\n<br />\n<b><a href=\"/nn_browsedfscontent.jsp\">Browse the filesystem</a></b><br>\n<b><a href=\"/logs/\">");
out.print(namenodeRole);
out.write(
" Logs</a></b><br>\n<b><a href=/dfshealth.jsp> Go back to DFS home</a></b>\n<hr>\n");
nodelistjsp.generateNodesList(out, nn, request);
out.write('\n');
out.write('\n');
out.println(ServletUtil.htmlFooter());
out.write('\n');
} catch (Throwable t) {
if (!(t instanceof SkipPageException)) {
out = _jspx_out;
if (out != null && out.getBufferSize() != 0) out.clearBuffer();
if (_jspx_page_context != null) _jspx_page_context.handlePageException(t);
}
} finally {
if (_jspxFactory != null) _jspxFactory.releasePageContext(_jspx_page_context);
}
}
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.apache.jasper.runtime.ResourceInjector)
application.getAttribute("com.sun.appserv.jsp.resource.injector");
out.write('\n');
out.write('\n');
JobTracker tracker = (JobTracker) application.getAttribute("job.tracker");
String trackerName = StringUtils.simpleHostname(tracker.getJobTrackerMachine());
out.write('\n');
out.write('\n');
out.write('\n');
String jobId = request.getParameter("jobid");
if (jobId == null) {
out.println("<h2>Missing 'jobid'!</h2>");
return;
}
JobID jobIdObj = JobID.forName(jobId);
String kind = request.getParameter("kind");
String cause = request.getParameter("cause");
out.write("\n\n<html>\n<title>Hadoop ");
out.print(jobId);
out.write(" failures on ");
out.print(trackerName);
out.write("</title>\n<body>\n<h1>Hadoop <a href=\"jobdetails.jsp?jobid=");
out.print(jobId);
out.write('"');
out.write('>');
out.print(jobId);
out.write("</a>\nfailures on <a href=\"jobtracker.jsp\">");
out.print(trackerName);
out.write("</a></h1>\n\n");
printFailures(out, tracker, jobIdObj, kind, cause);
out.write("\n\n<hr>\n<a href=\"jobtracker.jsp\">Go back to JobTracker</a><br>\n");
out.println(ServletUtil.htmlFooter());
out.write('\n');
} catch (Throwable t) {
if (!(t instanceof SkipPageException)) {
out = _jspx_out;
if (out != null && out.getBufferSize() != 0) out.clearBuffer();
if (_jspx_page_context != null) _jspx_page_context.handlePageException(t);
}
} finally {
_jspxFactory.releasePageContext(_jspx_page_context);
}
}