public void run(String hostname) {
try {
getMonitorLock();
} catch (Exception e) {
log.error("Failed to get Monitor ZooKeeper lock");
throw new RuntimeException(e);
}
Monitor.START_TIME = System.currentTimeMillis();
int port = config.getConfiguration().getPort(Property.MONITOR_PORT);
try {
log.debug("Creating monitor on port " + port);
server = new EmbeddedWebServer(hostname, port);
} catch (Throwable ex) {
log.error("Unable to start embedded web server", ex);
throw new RuntimeException(ex);
}
server.addServlet(DefaultServlet.class, "/");
server.addServlet(OperationServlet.class, "/op");
server.addServlet(MasterServlet.class, "/master");
server.addServlet(TablesServlet.class, "/tables");
server.addServlet(TServersServlet.class, "/tservers");
server.addServlet(ProblemServlet.class, "/problems");
server.addServlet(GcStatusServlet.class, "/gc");
server.addServlet(LogServlet.class, "/log");
server.addServlet(XMLServlet.class, "/xml");
server.addServlet(JSONServlet.class, "/json");
server.addServlet(VisServlet.class, "/vis");
server.addServlet(Summary.class, "/trace/summary");
server.addServlet(ListType.class, "/trace/listType");
server.addServlet(ShowTrace.class, "/trace/show");
if (server.isUsingSsl()) server.addServlet(ShellServlet.class, "/shell");
server.start();
try {
hostname = InetAddress.getLocalHost().getHostName();
log.debug("Using " + hostname + " to advertise monitor location in ZooKeeper");
String monitorAddress = HostAndPort.fromParts(hostname, server.getPort()).toString();
ZooReaderWriter.getInstance()
.putPersistentData(
ZooUtil.getRoot(instance) + Constants.ZMONITOR_HTTP_ADDR,
monitorAddress.getBytes(StandardCharsets.UTF_8),
NodeExistsPolicy.OVERWRITE);
log.info("Set monitor address in zookeeper to " + monitorAddress);
} catch (Exception ex) {
log.error("Unable to set monitor HTTP address in zookeeper", ex);
}
if (null != hostname) {
LogService.startLogListener(
Monitor.getSystemConfiguration(), instance.getInstanceID(), hostname);
} else {
log.warn("Not starting log4j listener as we could not determine address to use");
}
new Daemon(new LoggingRunnable(log, new ZooKeeperStatus()), "ZooKeeperStatus").start();
// need to regularly fetch data so plot data is updated
new Daemon(
new LoggingRunnable(
log,
new Runnable() {
@Override
public void run() {
while (true) {
try {
Monitor.fetchData();
} catch (Exception e) {
log.warn(e.getMessage(), e);
}
UtilWaitThread.sleep(333);
}
}
}),
"Data fetcher")
.start();
}
protected void pageStart(HttpServletRequest req, HttpServletResponse resp, StringBuilder sb)
throws Exception {
resp.setContentType(DEFAULT_CONTENT_TYPE);
int refresh = -1;
Cookie c = getCookie(req, "page.refresh.rate");
if (c != null && c.getValue() != null) {
try {
refresh = Integer.parseInt(c.getValue());
} catch (NumberFormatException e) {
// ignore improperly formatted user cookie
}
}
synchronized (BasicServlet.class) {
// Learn our instance name asynchronously so we don't hang up if zookeeper is down
if (cachedInstanceName == null) {
SimpleTimer.getInstance()
.schedule(
new TimerTask() {
@Override
public void run() {
synchronized (BasicServlet.class) {
if (cachedInstanceName == null) {
cachedInstanceName = HdfsZooInstance.getInstance().getInstanceName();
}
}
}
},
1000);
}
}
// BEGIN PAGE
sb.append("<html>\n");
// BEGIN HEADER
sb.append("<head>\n");
sb.append("<title>")
.append(getTitle(req))
.append(" - Accumulo ")
.append(Constants.VERSION)
.append("</title>\n");
if ((refresh > 0)
&& (req.getRequestURI().startsWith("/docs") == false)
&& (req.getRequestURI().startsWith("/vis") == false))
sb.append("<meta http-equiv='refresh' content='" + refresh + "' />\n");
sb.append("<meta http-equiv='Content-Type' content='")
.append(DEFAULT_CONTENT_TYPE)
.append("' />\n");
sb.append("<meta http-equiv='Content-Script-Type' content='text/javascript' />\n");
sb.append("<meta http-equiv='Content-Style-Type' content='text/css' />\n");
sb.append("<link rel='shortcut icon' type='image/jpg' href='/web/favicon.png' />\n");
sb.append("<link rel='stylesheet' type='text/css' href='/web/screen.css' media='screen' />\n");
sb.append("<script src='/web/functions.js' type='text/javascript'></script>\n");
sb.append(
"<!--[if lte IE 8]><script language=\"javascript\" type=\"text/javascript\" src=\"/web/flot/excanvas.min.js\"></script><![endif]-->\n");
sb.append(
"<script language=\"javascript\" type=\"text/javascript\" src=\"/web/flot/jquery.js\"></script>\n");
sb.append(
"<script language=\"javascript\" type=\"text/javascript\" src=\"/web/flot/jquery.flot.js\"></script>\n");
sb.append("</head>\n");
// BEGIN BODY OPENING
sb.append("\n<body>\n");
sb.append("<div id='content-wrapper'>\n");
sb.append("<div id='content'>\n");
sb.append("<div id='header'>");
if (!bannerText.isEmpty()) {
sb.append("<div id='banner' style='color:")
.append(bannerColor)
.append(";background:")
.append(bannerBackground)
.append("'>")
.append(bannerText)
.append("</div>\n");
}
sb.append("<div id='headertitle'>");
sb.append("<h1>").append(getTitle(req)).append("</h1></div>\n");
sb.append("<div id='subheader'>Instance Name: ")
.append(cachedInstanceName)
.append(" Version: ")
.append(Constants.VERSION)
.append("\n");
sb.append("<br><span class='smalltext'>Instance ID: ")
.append(HdfsZooInstance.getInstance().getInstanceID())
.append("</span>\n");
sb.append("<br><span class='smalltext'>")
.append(new Date().toString().replace(" ", " "))
.append("</span>");
sb.append("</div>\n"); // end <div id='subheader'>
sb.append("</div>\n"); // end <div id='header'>
// BEGIN LEFT SIDE
sb.append("<div id='nav'>\n");
sb.append("<span id='nav-title'><a href='/'>Overview</a></span><br />\n");
sb.append("<hr />\n");
sb.append("<a href='/master'>Master Server</a><br />\n");
sb.append("<a href='/tservers'>Tablet Servers</a><br />\n");
sb.append("<a href='/loggers'>Logger Servers</a><br />\n");
sb.append("<a href='/vis'>Server Activity</a><br />\n");
sb.append("<a href='/gc'>Garbage Collector</a><br />\n");
sb.append("<a href='/tables'>Tables</a><br />\n");
sb.append("<a href='/trace/summary?minutes=10'>Recent Traces</a><br />\n");
sb.append("<a href='/docs'>Documentation</a><br />\n");
int numLogs = LogService.getInstance().getEvents().size();
if (numLogs > 0)
sb.append(
"<span class='error'><a href='/log'>Recent Logs <span class='smalltext'>("
+ numLogs
+ ")</a></span></span><br />\n");
int numProblems = Monitor.getProblemSummary().entrySet().size();
if (numProblems > 0)
sb.append(
"<span class='error'><a href='/problems'>Table Problems <span class='smalltext'>("
+ numProblems
+ ")</a></span></span><br />\n");
sb.append("<hr />\n");
sb.append("<a href='/xml'>XML</a><hr />\n");
sb.append("<div class='smalltext'>[<a href='")
.append("/op?action=refresh&value=")
.append(refresh < 1 ? "5" : "-1");
sb.append("&redir=").append(currentPage(req)).append("'>");
sb.append(refresh < 1 ? "en" : "dis").append("able auto-refresh</a>]</div>\n");
sb.append("</div>\n"); // end <div id='nav'>
sb.append("<div id='main'");
if (bannerText.isEmpty()) sb.append(" style='bottom:0'");
sb.append(">\n");
sb.append("<!-- BEGIN MAIN BODY CONTENT -->\n\n");
}
protected void pageStart(HttpServletRequest req, HttpServletResponse resp, StringBuilder sb)
throws Exception {
resp.setContentType(DEFAULT_CONTENT_TYPE);
int refresh = -1;
String refreshStr = getCookieValue(req, "page.refresh.rate");
if (refreshStr != null) {
try {
refresh = Integer.parseInt(BasicServlet.decode(refreshStr));
} catch (NumberFormatException e) {
// ignore improperly formatted user cookie
}
}
// BEGIN PAGE
sb.append("<!--\n");
sb.append(" Licensed to the Apache Software Foundation (ASF) under one or more\n");
sb.append(" contributor license agreements. See the NOTICE file distributed with\n");
sb.append(" this work for additional information regarding copyright ownership.\n");
sb.append(" The ASF licenses this file to You under the Apache License, Version 2.0\n");
sb.append(" (the \"License\"); you may not use this file except in compliance with\n");
sb.append(" the License. You may obtain a copy of the License at\n");
sb.append("\n");
sb.append(" http://www.apache.org/licenses/LICENSE-2.0\n");
sb.append("\n");
sb.append(" Unless required by applicable law or agreed to in writing, software\n");
sb.append(" distributed under the License is distributed on an \"AS IS\" BASIS,\n");
sb.append(" WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n");
sb.append(" See the License for the specific language governing permissions and\n");
sb.append(" limitations under the License.\n");
sb.append("-->\n");
sb.append("<html>\n");
// BEGIN HEADER
sb.append("<head>\n");
sb.append("<title>")
.append(getTitle(req))
.append(" - Accumulo ")
.append(Constants.VERSION)
.append("</title>\n");
if ((refresh > 0)
&& (req.getRequestURI().startsWith("/vis") == false)
&& (req.getRequestURI().startsWith("/shell") == false))
sb.append("<meta http-equiv='refresh' content='" + refresh + "' />\n");
sb.append("<meta http-equiv='Content-Type' content='")
.append(DEFAULT_CONTENT_TYPE)
.append("' />\n");
sb.append("<meta http-equiv='Content-Script-Type' content='text/javascript' />\n");
sb.append("<meta http-equiv='Content-Style-Type' content='text/css' />\n");
sb.append("<link rel='shortcut icon' type='image/jpg' href='/web/favicon.png' />\n");
sb.append("<link rel='stylesheet' type='text/css' href='/web/screen.css' media='screen' />\n");
sb.append("<script src='/web/functions.js' type='text/javascript'></script>\n");
sb.append(
"<!--[if lte IE 8]><script language=\"javascript\" type=\"text/javascript\" src=\"/web/flot/excanvas.min.js\"></script><![endif]-->\n");
sb.append(
"<script language=\"javascript\" type=\"text/javascript\" src=\"/web/flot/jquery.js\"></script>\n");
sb.append(
"<script language=\"javascript\" type=\"text/javascript\" src=\"/web/flot/jquery.flot.js\"></script>\n");
sb.append("</head>\n");
// BEGIN BODY OPENING
sb.append("\n<body ").append(getBodyAttributes()).append(">\n");
sb.append("<div id='content-wrapper'>\n");
sb.append("<div id='content'>\n");
sb.append("<div id='header'>");
if (!bannerText.isEmpty()) {
sb.append("<div id='banner' style='color:")
.append(bannerColor)
.append(";background:")
.append(bannerBackground)
.append("'>")
.append(bannerText)
.append("</div>\n");
}
sb.append("<div id='headertitle'>");
sb.append("<h1>").append(getTitle(req)).append("</h1></div>\n");
sb.append("<div id='subheader'>Instance Name: ")
.append(Monitor.cachedInstanceName.get())
.append(" Version: ")
.append(Constants.VERSION)
.append("\n");
sb.append("<br><span class='smalltext'>Instance ID: ")
.append(Monitor.getContext().getInstance().getInstanceID())
.append("</span>\n");
sb.append("<br><span class='smalltext'>")
.append(new Date().toString().replace(" ", " "))
.append("</span>");
sb.append("</div>\n"); // end <div id='subheader'>
sb.append("</div>\n"); // end <div id='header'>
// BEGIN LEFT SIDE
sb.append("<div id='nav'>\n");
sb.append("<span id='nav-title'><a href='/'>Overview</a></span><br />\n");
sb.append("<hr />\n");
sb.append("<a href='/master'>Master Server</a><br />\n");
sb.append("<a href='/tservers'>Tablet Servers</a><br />\n");
sb.append("<a href='/scans'>Active Scans</a><br />\n");
sb.append("<a href='/bulkImports'>Bulk Imports</a><br />\n");
sb.append("<a href='/vis'>Server Activity</a><br />\n");
sb.append("<a href='/gc'>Garbage Collector</a><br />\n");
sb.append("<a href='/tables'>Tables</a><br />\n");
sb.append("<a href='/trace/summary?minutes=10'>Recent Traces</a><br />\n");
sb.append("<a href='/replication'>Replication</a><br />\n");
List<DedupedLogEvent> dedupedLogEvents = LogService.getInstance().getEvents();
int numLogs = dedupedLogEvents.size();
boolean logsHaveError = false;
for (DedupedLogEvent dedupedLogEvent : dedupedLogEvents)
if (dedupedLogEvent.getEvent().getLevel().isGreaterOrEqual(Level.ERROR)) {
logsHaveError = true;
break;
}
if (numLogs > 0)
sb.append(
"<span class='"
+ (logsHaveError ? "error" : "warning")
+ "'><a href='/log'>Recent Logs <span class='smalltext'>("
+ numLogs
+ ")</a></span></span><br />\n");
int numProblems = Monitor.getProblemSummary().entrySet().size();
if (numProblems > 0)
sb.append(
"<span class='error'><a href='/problems'>Table Problems <span class='smalltext'>("
+ numProblems
+ ")</a></span></span><br />\n");
sb.append("<hr />\n");
sb.append("<a href='/xml'>XML</a><br />\n");
sb.append("<a href='/json'>JSON</a><hr />\n");
if (Monitor.isUsingSsl()) sb.append("<a href='/shell'>Shell</a><hr />\n");
sb.append("<div class='smalltext'>[<a href='")
.append("/op?action=refresh&value=")
.append(refresh < 1 ? "5" : "-1");
sb.append("&redir=").append(currentPage(req)).append("'>");
sb.append(refresh < 1 ? "en" : "dis").append("able auto-refresh</a>]</div>\n");
sb.append("</div>\n"); // end <div id='nav'>
sb.append("<div id='main'");
if (bannerText.isEmpty()) sb.append(" style='bottom:0'");
sb.append(">\n");
sb.append("<!-- BEGIN MAIN BODY CONTENT -->\n\n");
}