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HBASE-27814 Add support for dump and process metrics servlet in REST …
…InfoServer (apache#5215) Other changes: - Ensure info server stops during stop() - Extract header and footer. This would fix the log level page layout for rest web UI (See HBASE-20693) - Add hostname in the landing page instead of just port similar to other web UIs Signed-off-by: Nick Dimiduk <[email protected]> (cherry picked from commit a683fcf)
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hbase-rest/src/main/java/org/apache/hadoop/hbase/rest/RESTDumpServlet.java
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| /* | ||
| * 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. | ||
| */ | ||
| package org.apache.hadoop.hbase.rest; | ||
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| import java.io.IOException; | ||
| import java.io.OutputStream; | ||
| import java.io.PrintStream; | ||
| import java.io.PrintWriter; | ||
| import java.util.Date; | ||
| import javax.servlet.http.HttpServletRequest; | ||
| import javax.servlet.http.HttpServletResponse; | ||
| import org.apache.hadoop.conf.Configuration; | ||
| import org.apache.hadoop.hbase.http.HttpServer; | ||
| import org.apache.hadoop.hbase.monitoring.StateDumpServlet; | ||
| import org.apache.hadoop.hbase.util.LogMonitoring; | ||
| import org.apache.hadoop.hbase.util.Threads; | ||
| import org.apache.yetus.audience.InterfaceAudience; | ||
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| @InterfaceAudience.Private | ||
| public class RESTDumpServlet extends StateDumpServlet { | ||
| private static final long serialVersionUID = 1L; | ||
| private static final String LINE = "==========================================================="; | ||
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| @Override | ||
| public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException { | ||
| if (!HttpServer.isInstrumentationAccessAllowed(getServletContext(), request, response)) { | ||
| return; | ||
| } | ||
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| RESTServer restServer = (RESTServer) getServletContext().getAttribute(RESTServer.REST_SERVER); | ||
| assert restServer != null : "No REST Server in context!"; | ||
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| response.setContentType("text/plain"); | ||
| OutputStream os = response.getOutputStream(); | ||
| try (PrintWriter out = new PrintWriter(os)) { | ||
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| out.println("REST Server status for " + restServer.getServerName() + " as of " + new Date()); | ||
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| out.println("\n\nVersion Info:"); | ||
| out.println(LINE); | ||
| dumpVersionInfo(out); | ||
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| out.println("\n\nStacks:"); | ||
| out.println(LINE); | ||
| out.flush(); | ||
| PrintStream ps = new PrintStream(response.getOutputStream(), false, "UTF-8"); | ||
| Threads.printThreadInfo(ps, ""); | ||
| ps.flush(); | ||
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| out.println("\n\nREST Server configuration:"); | ||
| out.println(LINE); | ||
| Configuration conf = restServer.conf; | ||
| out.flush(); | ||
| conf.writeXml(os); | ||
| os.flush(); | ||
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| out.println("\n\nLogs"); | ||
| out.println(LINE); | ||
| long tailKb = getTailKbParam(request); | ||
| LogMonitoring.dumpTailOfLogs(out, tailKb); | ||
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| out.flush(); | ||
| } | ||
| } | ||
| } |
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hbase-rest/src/main/resources/hbase-webapps/rest/footer.jsp
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| <%-- | ||
| /** | ||
| * 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. | ||
| */ | ||
| --%> | ||
|
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| <script src="/static/js/jquery.min.js" type="text/javascript"></script> | ||
| <script src="/static/js/bootstrap.min.js" type="text/javascript"></script> | ||
| <script src="/static/js/tab.js" type="text/javascript"></script> | ||
| <script type="text/javascript"> | ||
| $(document).ready(function() { | ||
| $('div.navbar li.active').removeClass('active'); | ||
| $('a[href="' + location.pathname + '"]').closest('li').addClass('active'); | ||
| }); | ||
| </script> | ||
| </body> | ||
| </html> | ||
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hbase-rest/src/main/resources/hbase-webapps/rest/header.jsp
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| <%-- | ||
| /** | ||
| * 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. | ||
| */ | ||
| --%> | ||
| <%@ page contentType="text/html;charset=UTF-8" | ||
| import="org.apache.hadoop.hbase.HBaseConfiguration"%> | ||
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| <!DOCTYPE html> | ||
| <?xml version="1.0" encoding="UTF-8" ?> | ||
| <html lang="en"> | ||
| <head> | ||
| <meta charset="utf-8"> | ||
| <title><%= request.getParameter("pageTitle")%></title> | ||
| <meta name="viewport" content="width=device-width, initial-scale=1.0"> | ||
| <meta name="description" content=""> | ||
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| <link href="/static/css/bootstrap.min.css" rel="stylesheet"> | ||
| <link href="/static/css/bootstrap-theme.min.css" rel="stylesheet"> | ||
| <link href="/static/css/hbase.css" rel="stylesheet"> | ||
| </head> | ||
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| <body> | ||
| <div class="navbar navbar-fixed-top navbar-default"> | ||
| <div class="container-fluid"> | ||
| <div class="navbar-header"> | ||
| <button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-collapse"> | ||
| <span class="icon-bar"></span> | ||
| <span class="icon-bar"></span> | ||
| <span class="icon-bar"></span> | ||
| </button> | ||
| <a class="navbar-brand" href="/rest.jsp"><img src="/static/hbase_logo_small.png" alt="HBase Logo"/></a> | ||
| </div> | ||
| <div class="collapse navbar-collapse"> | ||
| <ul class="nav navbar-nav"> | ||
| <li class="active"><a href="/rest.jsp">Home</a></li> | ||
| <li><a href="/logs/">Local logs</a></li> | ||
| <li><a href="/processRest.jsp">Process Metrics</a></li> | ||
| <li><a href="/logLevel">Log Level</a></li> | ||
| <li><a href="/dump">Debug Dump</a></li> | ||
| <li class="nav-item dropdown"> | ||
| <a class="nav-link dropdown-toggle" href="#" id="navbarDropdownMenuLink" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false"> | ||
| Metrics <span class="caret"></span> | ||
| </a> | ||
| <ul class="dropdown-menu" aria-labelledby="navbarDropdownMenuLink"> | ||
| <li><a target="_blank" href="/jmx">JMX</a></li> | ||
| <li><a target="_blank" href="/jmx?description=true">JMX with description</a></li> | ||
| <li><a target="_blank" href="/prometheus">Prometheus</a></li> | ||
| <li><a target="_blank" href="/prometheus?description=true">Prometheus with description</a></li> | ||
| </ul> | ||
| </li> | ||
| <li><a href="/prof">Profiler</a></li> | ||
| <% if (HBaseConfiguration.isShowConfInServlet()) { %> | ||
| <li><a href="/conf">HBase Configuration</a></li> | ||
| <% } %> | ||
| </ul> | ||
| </div><!--/.nav-collapse --> | ||
| </div> | ||
| </div> | ||
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