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| <li>Summary: </li> |
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| <div class="sub-title"><span class="package-label-in-type">Package</span> <a href="package-summary.html">org.apache.hadoop.hbase.http</a></div> |
| <h1 title="Class ProfileServlet" class="title">Class ProfileServlet</h1> |
| </div> |
| <div class="inheritance" title="Inheritance Tree"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">java.lang.Object</a> |
| <div class="inheritance">javax.servlet.GenericServlet |
| <div class="inheritance">javax.servlet.http.HttpServlet |
| <div class="inheritance">org.apache.hadoop.hbase.http.ProfileServlet</div> |
| </div> |
| </div> |
| </div> |
| <section class="class-description" id="class-description"> |
| <dl class="notes"> |
| <dt>All Implemented Interfaces:</dt> |
| <dd><code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/io/Serializable.html" title="class or interface in java.io" class="external-link">Serializable</a></code>, <code>javax.servlet.Servlet</code>, <code>javax.servlet.ServletConfig</code></dd> |
| </dl> |
| <hr> |
| <div class="type-signature"><span class="annotations">@Private |
| </span><span class="modifiers">public class </span><span class="element-name"><a href="../../../../../src-html/org/apache/hadoop/hbase/http/ProfileServlet.html#line-58">ProfileServlet</a></span> |
| <span class="extends-implements">extends javax.servlet.http.HttpServlet</span></div> |
| <div class="block">Servlet that runs async-profiler as web-endpoint. Following options from async-profiler can be |
| specified as query paramater. // -e event profiling event: cpu|alloc|lock|cache-misses etc. // -d |
| duration run profiling for 'duration' seconds (integer) // -i interval sampling interval in |
| nanoseconds (long) // -j jstackdepth maximum Java stack depth (integer) // -b bufsize frame |
| buffer size (long) // -t profile different threads separately // -s simple class names instead of |
| FQN // -o fmt[,fmt...] output format: summary|traces|flat|collapsed|svg|tree|jfr|html // --width |
| px SVG width pixels (integer) // --height px SVG frame height pixels (integer) // --minwidth px |
| skip frames smaller than px (double) // --reverse generate stack-reversed FlameGraph / Call tree |
| Example: - To collect 30 second CPU profile of current process (returns FlameGraph svg) curl |
| "http://localhost:10002/prof" - To collect 1 minute CPU profile of current process and output in |
| tree format (html) curl "http://localhost:10002/prof?output=tree&duration=60" - To collect 30 |
| second heap allocation profile of current process (returns FlameGraph svg) curl |
| "http://localhost:10002/prof?event=alloc" - To collect lock contention profile of current process |
| (returns FlameGraph svg) curl "http://localhost:10002/prof?event=lock" Following event types are |
| supported (default is 'cpu') (NOTE: not all OS'es support all events) // Perf events: // cpu // |
| page-faults // context-switches // cycles // instructions // cache-references // cache-misses // |
| branches // branch-misses // bus-cycles // L1-dcache-load-misses // LLC-load-misses // |
| dTLB-load-misses // mem:breakpoint // trace:tracepoint // Java events: // alloc // lock</div> |
| <dl class="notes"> |
| <dt>See Also:</dt> |
| <dd> |
| <ul class="see-list"> |
| <li><a href="../../../../../serialized-form.html#org.apache.hadoop.hbase.http.ProfileServlet">Serialized Form</a></li> |
| </ul> |
| </dd> |
| </dl> |
| </section> |
| <section class="summary"> |
| <ul class="summary-list"> |
| <!-- ======== NESTED CLASS SUMMARY ======== --> |
| <li> |
| <section class="nested-class-summary" id="nested-class-summary"> |
| <h2>Nested Class Summary</h2> |
| <div class="caption"><span>Nested Classes</span></div> |
| <div class="summary-table three-column-summary"> |
| <div class="table-header col-first">Modifier and Type</div> |
| <div class="table-header col-second">Class</div> |
| <div class="table-header col-last">Description</div> |
| <div class="col-first even-row-color"><code>static class </code></div> |
| <div class="col-second even-row-color"><code><a href="ProfileServlet.DisabledServlet.html" class="type-name-link" title="class in org.apache.hadoop.hbase.http">ProfileServlet.DisabledServlet</a></code></div> |
| <div class="col-last even-row-color"> </div> |
| <div class="col-first odd-row-color"><code>(package private) static enum </code></div> |
| <div class="col-second odd-row-color"><code><a href="ProfileServlet.Event.html" class="type-name-link" title="enum class in org.apache.hadoop.hbase.http">ProfileServlet.Event</a></code></div> |
| <div class="col-last odd-row-color"> </div> |
| <div class="col-first even-row-color"><code>(package private) static enum </code></div> |
| <div class="col-second even-row-color"><code><a href="ProfileServlet.Output.html" class="type-name-link" title="enum class in org.apache.hadoop.hbase.http">ProfileServlet.Output</a></code></div> |
| <div class="col-last even-row-color"> </div> |
| </div> |
| </section> |
| </li> |
| <!-- =========== FIELD SUMMARY =========== --> |
| <li> |
| <section class="field-summary" id="field-summary"> |
| <h2>Field Summary</h2> |
| <div class="caption"><span>Fields</span></div> |
| <div class="summary-table three-column-summary"> |
| <div class="table-header col-first">Modifier and Type</div> |
| <div class="table-header col-second">Field</div> |
| <div class="table-header col-last">Description</div> |
| <div class="col-first even-row-color"><code>private static final <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></code></div> |
| <div class="col-second even-row-color"><code><a href="#ACCESS_CONTROL_ALLOW_METHODS" class="member-name-link">ACCESS_CONTROL_ALLOW_METHODS</a></code></div> |
| <div class="col-last even-row-color"> </div> |
| <div class="col-first odd-row-color"><code>private static final <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></code></div> |
| <div class="col-second odd-row-color"><code><a href="#ACCESS_CONTROL_ALLOW_ORIGIN" class="member-name-link">ACCESS_CONTROL_ALLOW_ORIGIN</a></code></div> |
| <div class="col-last odd-row-color"> </div> |
| <div class="col-first even-row-color"><code>private static final <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></code></div> |
| <div class="col-second even-row-color"><code><a href="#ALLOWED_METHODS" class="member-name-link">ALLOWED_METHODS</a></code></div> |
| <div class="col-last even-row-color"> </div> |
| <div class="col-first odd-row-color"><code>private static final <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></code></div> |
| <div class="col-second odd-row-color"><code><a href="#ASYNC_PROFILER_HOME_ENV" class="member-name-link">ASYNC_PROFILER_HOME_ENV</a></code></div> |
| <div class="col-last odd-row-color"> </div> |
| <div class="col-first even-row-color"><code>private static final <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></code></div> |
| <div class="col-second even-row-color"><code><a href="#ASYNC_PROFILER_HOME_SYSTEM_PROPERTY" class="member-name-link">ASYNC_PROFILER_HOME_SYSTEM_PROPERTY</a></code></div> |
| <div class="col-last even-row-color"> </div> |
| <div class="col-first odd-row-color"><code>private <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></code></div> |
| <div class="col-second odd-row-color"><code><a href="#asyncProfilerHome" class="member-name-link">asyncProfilerHome</a></code></div> |
| <div class="col-last odd-row-color"> </div> |
| <div class="col-first even-row-color"><code>private static final <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></code></div> |
| <div class="col-second even-row-color"><code><a href="#CONTENT_TYPE_TEXT" class="member-name-link">CONTENT_TYPE_TEXT</a></code></div> |
| <div class="col-last even-row-color"> </div> |
| <div class="col-first odd-row-color"><code>private static final int</code></div> |
| <div class="col-second odd-row-color"><code><a href="#DEFAULT_DURATION_SECONDS" class="member-name-link">DEFAULT_DURATION_SECONDS</a></code></div> |
| <div class="col-last odd-row-color"> </div> |
| <div class="col-first even-row-color"><code>private static final <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/concurrent/atomic/AtomicInteger.html" title="class or interface in java.util.concurrent.atomic" class="external-link">AtomicInteger</a></code></div> |
| <div class="col-second even-row-color"><code><a href="#ID_GEN" class="member-name-link">ID_GEN</a></code></div> |
| <div class="col-last even-row-color"> </div> |
| <div class="col-first odd-row-color"><code>private static final org.slf4j.Logger</code></div> |
| <div class="col-second odd-row-color"><code><a href="#LOG" class="member-name-link">LOG</a></code></div> |
| <div class="col-last odd-row-color"> </div> |
| <div class="col-first even-row-color"><code>(package private) static final <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></code></div> |
| <div class="col-second even-row-color"><code><a href="#OUTPUT_DIR" class="member-name-link">OUTPUT_DIR</a></code></div> |
| <div class="col-last even-row-color"> </div> |
| <div class="col-first odd-row-color"><code>private <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Integer.html" title="class or interface in java.lang" class="external-link">Integer</a></code></div> |
| <div class="col-second odd-row-color"><code><a href="#pid" class="member-name-link">pid</a></code></div> |
| <div class="col-last odd-row-color"> </div> |
| <div class="col-first even-row-color"><code>private <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Process.html" title="class or interface in java.lang" class="external-link">Process</a></code></div> |
| <div class="col-second even-row-color"><code><a href="#process" class="member-name-link">process</a></code></div> |
| <div class="col-last even-row-color"> </div> |
| <div class="col-first odd-row-color"><code>private static final <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></code></div> |
| <div class="col-second odd-row-color"><code><a href="#PROFILER_SCRIPT" class="member-name-link">PROFILER_SCRIPT</a></code></div> |
| <div class="col-last odd-row-color"> </div> |
| <div class="col-first even-row-color"><code>private <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/concurrent/locks/Lock.html" title="class or interface in java.util.concurrent.locks" class="external-link">Lock</a></code></div> |
| <div class="col-second even-row-color"><code><a href="#profilerLock" class="member-name-link">profilerLock</a></code></div> |
| <div class="col-last even-row-color"> </div> |
| <div class="col-first odd-row-color"><code>private static final long</code></div> |
| <div class="col-second odd-row-color"><code><a href="#serialVersionUID" class="member-name-link">serialVersionUID</a></code></div> |
| <div class="col-last odd-row-color"> </div> |
| </div> |
| </section> |
| </li> |
| <!-- ======== CONSTRUCTOR SUMMARY ======== --> |
| <li> |
| <section class="constructor-summary" id="constructor-summary"> |
| <h2>Constructor Summary</h2> |
| <div class="caption"><span>Constructors</span></div> |
| <div class="summary-table two-column-summary"> |
| <div class="table-header col-first">Constructor</div> |
| <div class="table-header col-last">Description</div> |
| <div class="col-constructor-name even-row-color"><code><a href="#%3Cinit%3E()" class="member-name-link">ProfileServlet</a>()</code></div> |
| <div class="col-last even-row-color"> </div> |
| </div> |
| </section> |
| </li> |
| <!-- ========== METHOD SUMMARY =========== --> |
| <li> |
| <section class="method-summary" id="method-summary"> |
| <h2>Method Summary</h2> |
| <div id="method-summary-table"> |
| <div class="table-tabs" role="tablist" aria-orientation="horizontal"><button id="method-summary-table-tab0" role="tab" aria-selected="true" aria-controls="method-summary-table.tabpanel" tabindex="0" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table', 3)" class="active-table-tab">All Methods</button><button id="method-summary-table-tab1" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab1', 3)" class="table-tab">Static Methods</button><button id="method-summary-table-tab2" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab2', 3)" class="table-tab">Instance Methods</button><button id="method-summary-table-tab4" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab4', 3)" class="table-tab">Concrete Methods</button></div> |
| <div id="method-summary-table.tabpanel" role="tabpanel"> |
| <div class="summary-table three-column-summary" aria-labelledby="method-summary-table-tab0"> |
| <div class="table-header col-first">Modifier and Type</div> |
| <div class="table-header col-second">Method</div> |
| <div class="table-header col-last">Description</div> |
| <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>protected void</code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#doGet(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse)" class="member-name-link">doGet</a><wbr>(javax.servlet.http.HttpServletRequest req, |
| javax.servlet.http.HttpServletResponse resp)</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"> </div> |
| <div class="col-first odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>(package private) static <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></code></div> |
| <div class="col-second odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#getAsyncProfilerHome()" class="member-name-link">getAsyncProfilerHome</a>()</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"> </div> |
| <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>private <a href="ProfileServlet.Event.html" title="enum class in org.apache.hadoop.hbase.http">ProfileServlet.Event</a></code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#getEvent(javax.servlet.http.HttpServletRequest)" class="member-name-link">getEvent</a><wbr>(javax.servlet.http.HttpServletRequest req)</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"> </div> |
| <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>private <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Integer.html" title="class or interface in java.lang" class="external-link">Integer</a></code></div> |
| <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#getInteger(javax.servlet.http.HttpServletRequest,java.lang.String,java.lang.Integer)" class="member-name-link">getInteger</a><wbr>(javax.servlet.http.HttpServletRequest req, |
| <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a> param, |
| <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Integer.html" title="class or interface in java.lang" class="external-link">Integer</a> defaultValue)</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"> </div> |
| <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>private <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Long.html" title="class or interface in java.lang" class="external-link">Long</a></code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#getLong(javax.servlet.http.HttpServletRequest,java.lang.String)" class="member-name-link">getLong</a><wbr>(javax.servlet.http.HttpServletRequest req, |
| <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a> param)</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"> </div> |
| <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>private <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Double.html" title="class or interface in java.lang" class="external-link">Double</a></code></div> |
| <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#getMinWidth(javax.servlet.http.HttpServletRequest)" class="member-name-link">getMinWidth</a><wbr>(javax.servlet.http.HttpServletRequest req)</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"> </div> |
| <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>private <a href="ProfileServlet.Output.html" title="enum class in org.apache.hadoop.hbase.http">ProfileServlet.Output</a></code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#getOutput(javax.servlet.http.HttpServletRequest)" class="member-name-link">getOutput</a><wbr>(javax.servlet.http.HttpServletRequest req)</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"> </div> |
| <div class="col-first odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>(package private) static void</code></div> |
| <div class="col-second odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#setResponseHeader(javax.servlet.http.HttpServletResponse)" class="member-name-link">setResponseHeader</a><wbr>(javax.servlet.http.HttpServletResponse response)</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"> </div> |
| </div> |
| </div> |
| </div> |
| <div class="inherited-list"> |
| <h3 id="methods-inherited-from-class-javax.servlet.http.HttpServlet">Methods inherited from class javax.servlet.http.HttpServlet</h3> |
| <code>doDelete, doHead, doOptions, doPost, doPut, doTrace, getLastModified, service, service</code></div> |
| <div class="inherited-list"> |
| <h3 id="methods-inherited-from-class-javax.servlet.GenericServlet">Methods inherited from class javax.servlet.GenericServlet</h3> |
| <code>destroy, getInitParameter, getInitParameterNames, getServletConfig, getServletContext, getServletInfo, getServletName, init, init, log, log</code></div> |
| <div class="inherited-list"> |
| <h3 id="methods-inherited-from-class-java.lang.Object">Methods inherited from class java.lang.<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a></h3> |
| <code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#clone()" title="class or interface in java.lang" class="external-link">clone</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#equals(java.lang.Object)" title="class or interface in java.lang" class="external-link">equals</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#finalize()" title="class or interface in java.lang" class="external-link">finalize</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#getClass()" title="class or interface in java.lang" class="external-link">getClass</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#hashCode()" title="class or interface in java.lang" class="external-link">hashCode</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#notify()" title="class or interface in java.lang" class="external-link">notify</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#notifyAll()" title="class or interface in java.lang" class="external-link">notifyAll</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#toString()" title="class or interface in java.lang" class="external-link">toString</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#wait()" title="class or interface in java.lang" class="external-link">wait</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#wait(long)" title="class or interface in java.lang" class="external-link">wait</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#wait(long,int)" title="class or interface in java.lang" class="external-link">wait</a></code></div> |
| </section> |
| </li> |
| </ul> |
| </section> |
| <section class="details"> |
| <ul class="details-list"> |
| <!-- ============ FIELD DETAIL =========== --> |
| <li> |
| <section class="field-details" id="field-detail"> |
| <h2>Field Details</h2> |
| <ul class="member-list"> |
| <li> |
| <section class="detail" id="serialVersionUID"> |
| <h3>serialVersionUID</h3> |
| <div class="member-signature"><span class="modifiers">private static final</span> <span class="return-type">long</span> <span class="element-name"><a href="../../../../../src-html/org/apache/hadoop/hbase/http/ProfileServlet.html#line-61">serialVersionUID</a></span></div> |
| <dl class="notes"> |
| <dt>See Also:</dt> |
| <dd> |
| <ul class="see-list"> |
| <li><a href="../../../../../constant-values.html#org.apache.hadoop.hbase.http.ProfileServlet.serialVersionUID">Constant Field Values</a></li> |
| </ul> |
| </dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="LOG"> |
| <h3>LOG</h3> |
| <div class="member-signature"><span class="modifiers">private static final</span> <span class="return-type">org.slf4j.Logger</span> <span class="element-name"><a href="../../../../../src-html/org/apache/hadoop/hbase/http/ProfileServlet.html#line-62">LOG</a></span></div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="ACCESS_CONTROL_ALLOW_METHODS"> |
| <h3>ACCESS_CONTROL_ALLOW_METHODS</h3> |
| <div class="member-signature"><span class="modifiers">private static final</span> <span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></span> <span class="element-name"><a href="../../../../../src-html/org/apache/hadoop/hbase/http/ProfileServlet.html#line-64">ACCESS_CONTROL_ALLOW_METHODS</a></span></div> |
| <dl class="notes"> |
| <dt>See Also:</dt> |
| <dd> |
| <ul class="see-list"> |
| <li><a href="../../../../../constant-values.html#org.apache.hadoop.hbase.http.ProfileServlet.ACCESS_CONTROL_ALLOW_METHODS">Constant Field Values</a></li> |
| </ul> |
| </dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="ALLOWED_METHODS"> |
| <h3>ALLOWED_METHODS</h3> |
| <div class="member-signature"><span class="modifiers">private static final</span> <span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></span> <span class="element-name"><a href="../../../../../src-html/org/apache/hadoop/hbase/http/ProfileServlet.html#line-65">ALLOWED_METHODS</a></span></div> |
| <dl class="notes"> |
| <dt>See Also:</dt> |
| <dd> |
| <ul class="see-list"> |
| <li><a href="../../../../../constant-values.html#org.apache.hadoop.hbase.http.ProfileServlet.ALLOWED_METHODS">Constant Field Values</a></li> |
| </ul> |
| </dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="ACCESS_CONTROL_ALLOW_ORIGIN"> |
| <h3>ACCESS_CONTROL_ALLOW_ORIGIN</h3> |
| <div class="member-signature"><span class="modifiers">private static final</span> <span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></span> <span class="element-name"><a href="../../../../../src-html/org/apache/hadoop/hbase/http/ProfileServlet.html#line-66">ACCESS_CONTROL_ALLOW_ORIGIN</a></span></div> |
| <dl class="notes"> |
| <dt>See Also:</dt> |
| <dd> |
| <ul class="see-list"> |
| <li><a href="../../../../../constant-values.html#org.apache.hadoop.hbase.http.ProfileServlet.ACCESS_CONTROL_ALLOW_ORIGIN">Constant Field Values</a></li> |
| </ul> |
| </dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="CONTENT_TYPE_TEXT"> |
| <h3>CONTENT_TYPE_TEXT</h3> |
| <div class="member-signature"><span class="modifiers">private static final</span> <span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></span> <span class="element-name"><a href="../../../../../src-html/org/apache/hadoop/hbase/http/ProfileServlet.html#line-67">CONTENT_TYPE_TEXT</a></span></div> |
| <dl class="notes"> |
| <dt>See Also:</dt> |
| <dd> |
| <ul class="see-list"> |
| <li><a href="../../../../../constant-values.html#org.apache.hadoop.hbase.http.ProfileServlet.CONTENT_TYPE_TEXT">Constant Field Values</a></li> |
| </ul> |
| </dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="ASYNC_PROFILER_HOME_ENV"> |
| <h3>ASYNC_PROFILER_HOME_ENV</h3> |
| <div class="member-signature"><span class="modifiers">private static final</span> <span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></span> <span class="element-name"><a href="../../../../../src-html/org/apache/hadoop/hbase/http/ProfileServlet.html#line-68">ASYNC_PROFILER_HOME_ENV</a></span></div> |
| <dl class="notes"> |
| <dt>See Also:</dt> |
| <dd> |
| <ul class="see-list"> |
| <li><a href="../../../../../constant-values.html#org.apache.hadoop.hbase.http.ProfileServlet.ASYNC_PROFILER_HOME_ENV">Constant Field Values</a></li> |
| </ul> |
| </dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="ASYNC_PROFILER_HOME_SYSTEM_PROPERTY"> |
| <h3>ASYNC_PROFILER_HOME_SYSTEM_PROPERTY</h3> |
| <div class="member-signature"><span class="modifiers">private static final</span> <span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></span> <span class="element-name"><a href="../../../../../src-html/org/apache/hadoop/hbase/http/ProfileServlet.html#line-69">ASYNC_PROFILER_HOME_SYSTEM_PROPERTY</a></span></div> |
| <dl class="notes"> |
| <dt>See Also:</dt> |
| <dd> |
| <ul class="see-list"> |
| <li><a href="../../../../../constant-values.html#org.apache.hadoop.hbase.http.ProfileServlet.ASYNC_PROFILER_HOME_SYSTEM_PROPERTY">Constant Field Values</a></li> |
| </ul> |
| </dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="PROFILER_SCRIPT"> |
| <h3>PROFILER_SCRIPT</h3> |
| <div class="member-signature"><span class="modifiers">private static final</span> <span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></span> <span class="element-name"><a href="../../../../../src-html/org/apache/hadoop/hbase/http/ProfileServlet.html#line-70">PROFILER_SCRIPT</a></span></div> |
| <dl class="notes"> |
| <dt>See Also:</dt> |
| <dd> |
| <ul class="see-list"> |
| <li><a href="../../../../../constant-values.html#org.apache.hadoop.hbase.http.ProfileServlet.PROFILER_SCRIPT">Constant Field Values</a></li> |
| </ul> |
| </dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="DEFAULT_DURATION_SECONDS"> |
| <h3>DEFAULT_DURATION_SECONDS</h3> |
| <div class="member-signature"><span class="modifiers">private static final</span> <span class="return-type">int</span> <span class="element-name"><a href="../../../../../src-html/org/apache/hadoop/hbase/http/ProfileServlet.html#line-71">DEFAULT_DURATION_SECONDS</a></span></div> |
| <dl class="notes"> |
| <dt>See Also:</dt> |
| <dd> |
| <ul class="see-list"> |
| <li><a href="../../../../../constant-values.html#org.apache.hadoop.hbase.http.ProfileServlet.DEFAULT_DURATION_SECONDS">Constant Field Values</a></li> |
| </ul> |
| </dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="ID_GEN"> |
| <h3>ID_GEN</h3> |
| <div class="member-signature"><span class="modifiers">private static final</span> <span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/concurrent/atomic/AtomicInteger.html" title="class or interface in java.util.concurrent.atomic" class="external-link">AtomicInteger</a></span> <span class="element-name"><a href="../../../../../src-html/org/apache/hadoop/hbase/http/ProfileServlet.html#line-72">ID_GEN</a></span></div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="OUTPUT_DIR"> |
| <h3>OUTPUT_DIR</h3> |
| <div class="member-signature"><span class="modifiers">static final</span> <span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></span> <span class="element-name"><a href="../../../../../src-html/org/apache/hadoop/hbase/http/ProfileServlet.html#line-73">OUTPUT_DIR</a></span></div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="profilerLock"> |
| <h3>profilerLock</h3> |
| <div class="member-signature"><span class="modifiers">private transient</span> <span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/concurrent/locks/Lock.html" title="class or interface in java.util.concurrent.locks" class="external-link">Lock</a></span> <span class="element-name"><a href="../../../../../src-html/org/apache/hadoop/hbase/http/ProfileServlet.html#line-129">profilerLock</a></span></div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="process"> |
| <h3>process</h3> |
| <div class="member-signature"><span class="modifiers">private transient volatile</span> <span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Process.html" title="class or interface in java.lang" class="external-link">Process</a></span> <span class="element-name"><a href="../../../../../src-html/org/apache/hadoop/hbase/http/ProfileServlet.html#line-132">process</a></span></div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="asyncProfilerHome"> |
| <h3>asyncProfilerHome</h3> |
| <div class="member-signature"><span class="modifiers">private</span> <span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></span> <span class="element-name"><a href="../../../../../src-html/org/apache/hadoop/hbase/http/ProfileServlet.html#line-133">asyncProfilerHome</a></span></div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="pid"> |
| <h3>pid</h3> |
| <div class="member-signature"><span class="modifiers">private</span> <span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Integer.html" title="class or interface in java.lang" class="external-link">Integer</a></span> <span class="element-name"><a href="../../../../../src-html/org/apache/hadoop/hbase/http/ProfileServlet.html#line-134">pid</a></span></div> |
| </section> |
| </li> |
| </ul> |
| </section> |
| </li> |
| <!-- ========= CONSTRUCTOR DETAIL ======== --> |
| <li> |
| <section class="constructor-details" id="constructor-detail"> |
| <h2>Constructor Details</h2> |
| <ul class="member-list"> |
| <li> |
| <section class="detail" id="<init>()"> |
| <h3>ProfileServlet</h3> |
| <div class="member-signature"><span class="modifiers">public</span> <span class="element-name"><a href="../../../../../src-html/org/apache/hadoop/hbase/http/ProfileServlet.html#line-136">ProfileServlet</a></span>()</div> |
| </section> |
| </li> |
| </ul> |
| </section> |
| </li> |
| <!-- ============ METHOD DETAIL ========== --> |
| <li> |
| <section class="method-details" id="method-detail"> |
| <h2>Method Details</h2> |
| <ul class="member-list"> |
| <li> |
| <section class="detail" id="doGet(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse)"> |
| <h3>doGet</h3> |
| <div class="member-signature"><span class="modifiers">protected</span> <span class="return-type">void</span> <span class="element-name"><a href="../../../../../src-html/org/apache/hadoop/hbase/http/ProfileServlet.html#line-142">doGet</a></span><wbr><span class="parameters">(javax.servlet.http.HttpServletRequest req, |
| javax.servlet.http.HttpServletResponse resp)</span> |
| throws <span class="exceptions"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/io/IOException.html" title="class or interface in java.io" class="external-link">IOException</a></span></div> |
| <dl class="notes"> |
| <dt>Overrides:</dt> |
| <dd><code>doGet</code> in class <code>javax.servlet.http.HttpServlet</code></dd> |
| <dt>Throws:</dt> |
| <dd><code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/io/IOException.html" title="class or interface in java.io" class="external-link">IOException</a></code></dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="getInteger(javax.servlet.http.HttpServletRequest,java.lang.String,java.lang.Integer)"> |
| <h3>getInteger</h3> |
| <div class="member-signature"><span class="modifiers">private</span> <span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Integer.html" title="class or interface in java.lang" class="external-link">Integer</a></span> <span class="element-name"><a href="../../../../../src-html/org/apache/hadoop/hbase/http/ProfileServlet.html#line-285">getInteger</a></span><wbr><span class="parameters">(javax.servlet.http.HttpServletRequest req, |
| <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a> param, |
| <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Integer.html" title="class or interface in java.lang" class="external-link">Integer</a> defaultValue)</span></div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="getLong(javax.servlet.http.HttpServletRequest,java.lang.String)"> |
| <h3>getLong</h3> |
| <div class="member-signature"><span class="modifiers">private</span> <span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Long.html" title="class or interface in java.lang" class="external-link">Long</a></span> <span class="element-name"><a href="../../../../../src-html/org/apache/hadoop/hbase/http/ProfileServlet.html#line-298">getLong</a></span><wbr><span class="parameters">(javax.servlet.http.HttpServletRequest req, |
| <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a> param)</span></div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="getMinWidth(javax.servlet.http.HttpServletRequest)"> |
| <h3>getMinWidth</h3> |
| <div class="member-signature"><span class="modifiers">private</span> <span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Double.html" title="class or interface in java.lang" class="external-link">Double</a></span> <span class="element-name"><a href="../../../../../src-html/org/apache/hadoop/hbase/http/ProfileServlet.html#line-310">getMinWidth</a></span><wbr><span class="parameters">(javax.servlet.http.HttpServletRequest req)</span></div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="getEvent(javax.servlet.http.HttpServletRequest)"> |
| <h3>getEvent</h3> |
| <div class="member-signature"><span class="modifiers">private</span> <span class="return-type"><a href="ProfileServlet.Event.html" title="enum class in org.apache.hadoop.hbase.http">ProfileServlet.Event</a></span> <span class="element-name"><a href="../../../../../src-html/org/apache/hadoop/hbase/http/ProfileServlet.html#line-322">getEvent</a></span><wbr><span class="parameters">(javax.servlet.http.HttpServletRequest req)</span></div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="getOutput(javax.servlet.http.HttpServletRequest)"> |
| <h3>getOutput</h3> |
| <div class="member-signature"><span class="modifiers">private</span> <span class="return-type"><a href="ProfileServlet.Output.html" title="enum class in org.apache.hadoop.hbase.http">ProfileServlet.Output</a></span> <span class="element-name"><a href="../../../../../src-html/org/apache/hadoop/hbase/http/ProfileServlet.html#line-331">getOutput</a></span><wbr><span class="parameters">(javax.servlet.http.HttpServletRequest req)</span></div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="setResponseHeader(javax.servlet.http.HttpServletResponse)"> |
| <h3>setResponseHeader</h3> |
| <div class="member-signature"><span class="modifiers">static</span> <span class="return-type">void</span> <span class="element-name"><a href="../../../../../src-html/org/apache/hadoop/hbase/http/ProfileServlet.html#line-343">setResponseHeader</a></span><wbr><span class="parameters">(javax.servlet.http.HttpServletResponse response)</span></div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="getAsyncProfilerHome()"> |
| <h3>getAsyncProfilerHome</h3> |
| <div class="member-signature"><span class="modifiers">static</span> <span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></span> <span class="element-name"><a href="../../../../../src-html/org/apache/hadoop/hbase/http/ProfileServlet.html#line-349">getAsyncProfilerHome</a></span>()</div> |
| </section> |
| </li> |
| </ul> |
| </section> |
| </li> |
| </ul> |
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