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Posted to commits@spark.apache.org by sr...@apache.org on 2018/02/28 18:49:20 UTC

[14/51] [partial] spark-website git commit: Apache Spark 2.3.0 Release: Generated Docs

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+<div class="subTitle">org.apache.spark</div>
+<h2 title="Class TaskKilledException" class="title">Class TaskKilledException</h2>
+</div>
+<div class="contentContainer">
+<ul class="inheritance">
+<li>Object</li>
+<li>
+<ul class="inheritance">
+<li>Throwable</li>
+<li>
+<ul class="inheritance">
+<li>Exception</li>
+<li>
+<ul class="inheritance">
+<li>RuntimeException</li>
+<li>
+<ul class="inheritance">
+<li>org.apache.spark.TaskKilledException</li>
+</ul>
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+<pre>public class <span class="typeNameLabel">TaskKilledException</span>
+extends RuntimeException</pre>
+<div class="block">:: DeveloperApi ::
+ Exception thrown when a task is explicitly killed (i.e., task failure is expected).</div>
+<dl>
+<dt><span class="seeLabel">See Also:</span></dt>
+<dd><a href="../../../serialized-form.html#org.apache.spark.TaskKilledException">Serialized Form</a></dd>
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+<th class="colOne" scope="col">Constructor and Description</th>
+</tr>
+<tr class="altColor">
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+</tr>
+<tr class="rowColor">
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+<th class="colLast" scope="col">Method and Description</th>
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+<td class="colFirst"><code>String</code></td>
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http://git-wip-us.apache.org/repos/asf/spark-website/blob/26c57a24/site/docs/2.3.0/api/java/org/apache/spark/TaskResultLost.html
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+<!-- ========= END OF TOP NAVBAR ========= -->
+<!-- ======== START OF CLASS DATA ======== -->
+<div class="header">
+<div class="subTitle">org.apache.spark</div>
+<h2 title="Class TaskResultLost" class="title">Class TaskResultLost</h2>
+</div>
+<div class="contentContainer">
+<ul class="inheritance">
+<li>Object</li>
+<li>
+<ul class="inheritance">
+<li>org.apache.spark.TaskResultLost</li>
+</ul>
+</li>
+</ul>
+<div class="description">
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+<pre>public class <span class="typeNameLabel">TaskResultLost</span>
+extends Object</pre>
+<div class="block">:: DeveloperApi ::
+ The task finished successfully, but the result was lost from the executor's block manager before
+ it was fetched.</div>
+</li>
+</ul>
+</div>
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+<li class="blockList">
+<!-- ======== CONSTRUCTOR SUMMARY ======== -->
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+<li class="blockList"><a name="constructor.summary">
+<!--   -->
+</a>
+<h3>Constructor Summary</h3>
+<table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Constructor Summary table, listing constructors, and an explanation">
+<caption><span>Constructors</span><span class="tabEnd">&nbsp;</span></caption>
+<tr>
+<th class="colOne" scope="col">Constructor and Description</th>
+</tr>
+<tr class="altColor">
+<td class="colOne"><code><span class="memberNameLink"><a href="../../../org/apache/spark/TaskResultLost.html#TaskResultLost--">TaskResultLost</a></span>()</code>&nbsp;</td>
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+<h3>Method Summary</h3>
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+<caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd">&nbsp;</span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">Static Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t3" class="tableTab"><span><a href="javascript:show(4);">Abstract Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd">&nbsp;</span></span></caption>
+<tr>
+<th class="colFirst" scope="col">Modifier and Type</th>
+<th class="colLast" scope="col">Method and Description</th>
+</tr>
+<tr id="i0" class="altColor">
+<td class="colFirst"><code>abstract static boolean</code></td>
+<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/spark/TaskResultLost.html#canEqual-java.lang.Object-">canEqual</a></span>(Object&nbsp;that)</code>&nbsp;</td>
+</tr>
+<tr id="i1" class="rowColor">
+<td class="colFirst"><code>static boolean</code></td>
+<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/spark/TaskResultLost.html#countTowardsTaskFailures--">countTowardsTaskFailures</a></span>()</code>&nbsp;</td>
+</tr>
+<tr id="i2" class="altColor">
+<td class="colFirst"><code>abstract static boolean</code></td>
+<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/spark/TaskResultLost.html#equals-java.lang.Object-">equals</a></span>(Object&nbsp;that)</code>&nbsp;</td>
+</tr>
+<tr id="i3" class="rowColor">
+<td class="colFirst"><code>abstract static int</code></td>
+<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/spark/TaskResultLost.html#productArity--">productArity</a></span>()</code>&nbsp;</td>
+</tr>
+<tr id="i4" class="altColor">
+<td class="colFirst"><code>abstract static Object</code></td>
+<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/spark/TaskResultLost.html#productElement-int-">productElement</a></span>(int&nbsp;n)</code>&nbsp;</td>
+</tr>
+<tr id="i5" class="rowColor">
+<td class="colFirst"><code>static scala.collection.Iterator&lt;Object&gt;</code></td>
+<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/spark/TaskResultLost.html#productIterator--">productIterator</a></span>()</code>&nbsp;</td>
+</tr>
+<tr id="i6" class="altColor">
+<td class="colFirst"><code>static String</code></td>
+<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/spark/TaskResultLost.html#productPrefix--">productPrefix</a></span>()</code>&nbsp;</td>
+</tr>
+<tr id="i7" class="rowColor">
+<td class="colFirst"><code>static String</code></td>
+<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/spark/TaskResultLost.html#toErrorString--">toErrorString</a></span>()</code>&nbsp;</td>
+</tr>
+</table>
+<ul class="blockList">
+<li class="blockList"><a name="methods.inherited.from.class.Object">
+<!--   -->
+</a>
+<h3>Methods inherited from class&nbsp;Object</h3>
+<code>equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</code></li>
+</ul>
+</li>
+</ul>
+</li>
+</ul>
+</div>
+<div class="details">
+<ul class="blockList">
+<li class="blockList">
+<!-- ========= CONSTRUCTOR DETAIL ======== -->
+<ul class="blockList">
+<li class="blockList"><a name="constructor.detail">
+<!--   -->
+</a>
+<h3>Constructor Detail</h3>
+<a name="TaskResultLost--">
+<!--   -->
+</a>
+<ul class="blockListLast">
+<li class="blockList">
+<h4>TaskResultLost</h4>
+<pre>public&nbsp;TaskResultLost()</pre>
+</li>
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+</ul>
+<!-- ============ METHOD DETAIL ========== -->
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+<a name="toErrorString--">
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+</a>
+<ul class="blockList">
+<li class="blockList">
+<h4>toErrorString</h4>
+<pre>public static&nbsp;String&nbsp;toErrorString()</pre>
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+<div class="subTitle">org.apache.spark</div>
+<h2 title="Class TaskSchedulerIsSet" class="title">Class TaskSchedulerIsSet</h2>
+</div>
+<div class="contentContainer">
+<ul class="inheritance">
+<li>Object</li>
+<li>
+<ul class="inheritance">
+<li>org.apache.spark.TaskSchedulerIsSet</li>
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+</li>
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+<pre>public class <span class="typeNameLabel">TaskSchedulerIsSet</span>
+extends Object</pre>
+<div class="block">An event that SparkContext uses to notify HeartbeatReceiver that SparkContext.taskScheduler is
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+<caption><span>Constructors</span><span class="tabEnd">&nbsp;</span></caption>
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+<th class="colOne" scope="col">Constructor and Description</th>
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+<tr class="altColor">
+<td class="colOne"><code><span class="memberNameLink"><a href="../../../org/apache/spark/TaskSchedulerIsSet.html#TaskSchedulerIsSet--">TaskSchedulerIsSet</a></span>()</code>&nbsp;</td>
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+<caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd">&nbsp;</span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">Static Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t3" class="tableTab"><span><a href="javascript:show(4);">Abstract Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd">&nbsp;</span></span></caption>
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+<td class="colFirst"><code>abstract static boolean</code></td>
+<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/spark/TaskSchedulerIsSet.html#canEqual-java.lang.Object-">canEqual</a></span>(Object&nbsp;that)</code>&nbsp;</td>
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+<tr id="i1" class="rowColor">
+<td class="colFirst"><code>abstract static boolean</code></td>
+<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/spark/TaskSchedulerIsSet.html#equals-java.lang.Object-">equals</a></span>(Object&nbsp;that)</code>&nbsp;</td>
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+<tr id="i2" class="altColor">
+<td class="colFirst"><code>abstract static int</code></td>
+<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/spark/TaskSchedulerIsSet.html#productArity--">productArity</a></span>()</code>&nbsp;</td>
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+<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/spark/TaskSchedulerIsSet.html#productElement-int-">productElement</a></span>(int&nbsp;n)</code>&nbsp;</td>
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+<tr id="i4" class="altColor">
+<td class="colFirst"><code>static scala.collection.Iterator&lt;Object&gt;</code></td>
+<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/spark/TaskSchedulerIsSet.html#productIterator--">productIterator</a></span>()</code>&nbsp;</td>
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+<td class="colFirst"><code>static String</code></td>
+<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/spark/TaskSchedulerIsSet.html#productPrefix--">productPrefix</a></span>()</code>&nbsp;</td>
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+<td class="colFirst"><code>static scala.Enumeration.ValueSet</code></td>
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+</tr>
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+<td class="colFirst"><code>static scala.Enumeration.Value</code></td>
+<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/spark/TaskState.html#withName-java.lang.String-">withName</a></span>(String&nbsp;s)</code>&nbsp;</td>
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+<div class="subTitle">org.apache.spark</div>
+<h2 title="Class TestUtils" class="title">Class TestUtils</h2>
+</div>
+<div class="contentContainer">
+<ul class="inheritance">
+<li>Object</li>
+<li>
+<ul class="inheritance">
+<li>org.apache.spark.TestUtils</li>
+</ul>
+</li>
+</ul>
+<div class="description">
+<ul class="blockList">
+<li class="blockList">
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+<pre>public class <span class="typeNameLabel">TestUtils</span>
+extends Object</pre>
+<div class="block">Utilities for tests. Included in main codebase since it's used by multiple
+ projects.
+ <p>
+ TODO: See if we can move this to the test codebase by specifying
+ test dependencies between projects.</div>
+</li>
+</ul>
+</div>
+<div class="summary">
+<ul class="blockList">
+<li class="blockList">
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+<li class="blockList"><a name="constructor.summary">
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+</a>
+<h3>Constructor Summary</h3>
+<table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Constructor Summary table, listing constructors, and an explanation">
+<caption><span>Constructors</span><span class="tabEnd">&nbsp;</span></caption>
+<tr>
+<th class="colOne" scope="col">Constructor and Description</th>
+</tr>
+<tr class="altColor">
+<td class="colOne"><code><span class="memberNameLink"><a href="../../../org/apache/spark/TestUtils.html#TestUtils--">TestUtils</a></span>()</code>&nbsp;</td>
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+<h3>Method Summary</h3>
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+<caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd">&nbsp;</span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">Static Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd">&nbsp;</span></span></caption>
+<tr>
+<th class="colFirst" scope="col">Modifier and Type</th>
+<th class="colLast" scope="col">Method and Description</th>
+</tr>
+<tr id="i0" class="altColor">
+<td class="colFirst"><code>static &lt;T&gt;&nbsp;void</code></td>
+<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/spark/TestUtils.html#assertNotSpilled-org.apache.spark.SparkContext-java.lang.String-scala.Function0-">assertNotSpilled</a></span>(<a href="../../../org/apache/spark/SparkContext.html" title="class in org.apache.spark">SparkContext</a>&nbsp;sc,
+                String&nbsp;identifier,
+                scala.Function0&lt;T&gt;&nbsp;body)</code>
+<div class="block">Run some code involving jobs submitted to the given context and assert that the jobs
+ did not spill.</div>
+</td>
+</tr>
+<tr id="i1" class="rowColor">
+<td class="colFirst"><code>static &lt;T&gt;&nbsp;void</code></td>
+<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/spark/TestUtils.html#assertSpilled-org.apache.spark.SparkContext-java.lang.String-scala.Function0-">assertSpilled</a></span>(<a href="../../../org/apache/spark/SparkContext.html" title="class in org.apache.spark">SparkContext</a>&nbsp;sc,
+             String&nbsp;identifier,
+             scala.Function0&lt;T&gt;&nbsp;body)</code>
+<div class="block">Run some code involving jobs submitted to the given context and assert that the jobs spilled.</div>
+</td>
+</tr>
+<tr id="i2" class="altColor">
+<td class="colFirst"><code>static java.io.File</code></td>
+<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/spark/TestUtils.html#createCompiledClass-java.lang.String-java.io.File-java.lang.String-java.lang.String-scala.collection.Seq-">createCompiledClass</a></span>(String&nbsp;className,
+                   java.io.File&nbsp;destDir,
+                   String&nbsp;toStringValue,
+                   String&nbsp;baseClass,
+                   scala.collection.Seq&lt;java.net.URL&gt;&nbsp;classpathUrls)</code>
+<div class="block">Creates a compiled class with the given name.</div>
+</td>
+</tr>
+<tr id="i3" class="rowColor">
+<td class="colFirst"><code>static java.io.File</code></td>
+<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/spark/TestUtils.html#createCompiledClass-java.lang.String-java.io.File-org.apache.spark.TestUtils.JavaSourceFromString-scala.collection.Seq-">createCompiledClass</a></span>(String&nbsp;className,
+                   java.io.File&nbsp;destDir,
+                   org.apache.spark.TestUtils.JavaSourceFromString&nbsp;sourceFile,
+                   scala.collection.Seq&lt;java.net.URL&gt;&nbsp;classpathUrls)</code>
+<div class="block">Creates a compiled class with the source file.</div>
+</td>
+</tr>
+<tr id="i4" class="altColor">
+<td class="colFirst"><code>static java.net.URL</code></td>
+<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/spark/TestUtils.html#createJar-scala.collection.Seq-java.io.File-scala.Option-">createJar</a></span>(scala.collection.Seq&lt;java.io.File&gt;&nbsp;files,
+         java.io.File&nbsp;jarFile,
+         scala.Option&lt;String&gt;&nbsp;directoryPrefix)</code>
+<div class="block">Create a jar file that contains this set of files.</div>
+</td>
+</tr>
+<tr id="i5" class="rowColor">
+<td class="colFirst"><code>static java.net.URL</code></td>
+<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/spark/TestUtils.html#createJarWithClasses-scala.collection.Seq-java.lang.String-scala.collection.Seq-scala.collection.Seq-">createJarWithClasses</a></span>(scala.collection.Seq&lt;String&gt;&nbsp;classNames,
+                    String&nbsp;toStringValue,
+                    scala.collection.Seq&lt;scala.Tuple2&lt;String,String&gt;&gt;&nbsp;classNamesWithBase,
+                    scala.collection.Seq&lt;java.net.URL&gt;&nbsp;classpathUrls)</code>
+<div class="block">Create a jar that defines classes with the given names.</div>
+</td>
+</tr>
+<tr id="i6" class="altColor">
+<td class="colFirst"><code>static java.net.URL</code></td>
+<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/spark/TestUtils.html#createJarWithFiles-scala.collection.immutable.Map-java.io.File-">createJarWithFiles</a></span>(scala.collection.immutable.Map&lt;String,String&gt;&nbsp;files,
+                  java.io.File&nbsp;dir)</code>
+<div class="block">Create a jar file containing multiple files.</div>
+</td>
+</tr>
+<tr id="i7" class="rowColor">
+<td class="colFirst"><code>static int</code></td>
+<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/spark/TestUtils.html#httpResponseCode-java.net.URL-java.lang.String-scala.collection.Seq-">httpResponseCode</a></span>(java.net.URL&nbsp;url,
+                String&nbsp;method,
+                scala.collection.Seq&lt;scala.Tuple2&lt;String,String&gt;&gt;&nbsp;headers)</code>
+<div class="block">Returns the response code from an HTTP(S) URL.</div>
+</td>
+</tr>
+<tr id="i8" class="altColor">
+<td class="colFirst"><code>static boolean</code></td>
+<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/spark/TestUtils.html#testCommandAvailable-java.lang.String-">testCommandAvailable</a></span>(String&nbsp;command)</code>
+<div class="block">Test if a command is available.</div>
+</td>
+</tr>
+</table>
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+</a>
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+</ul>
+</li>
+</ul>
+</li>
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+<pre>public&nbsp;TestUtils()</pre>
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+<li class="blockList"><a name="method.detail">
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+<h3>Method Detail</h3>
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+</a>
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+<h4>createJarWithClasses</h4>
+<pre>public static&nbsp;java.net.URL&nbsp;createJarWithClasses(scala.collection.Seq&lt;String&gt;&nbsp;classNames,
+                                                String&nbsp;toStringValue,
+                                                scala.collection.Seq&lt;scala.Tuple2&lt;String,String&gt;&gt;&nbsp;classNamesWithBase,
+                                                scala.collection.Seq&lt;java.net.URL&gt;&nbsp;classpathUrls)</pre>
+<div class="block">Create a jar that defines classes with the given names.
+ <p>
+ Note: if this is used during class loader tests, class names should be unique
+ in order to avoid interference between tests.</div>
+<dl>
+<dt><span class="paramLabel">Parameters:</span></dt>
+<dd><code>classNames</code> - (undocumented)</dd>
+<dd><code>toStringValue</code> - (undocumented)</dd>
+<dd><code>classNamesWithBase</code> - (undocumented)</dd>
+<dd><code>classpathUrls</code> - (undocumented)</dd>
+<dt><span class="returnLabel">Returns:</span></dt>
+<dd>(undocumented)</dd>
+</dl>
+</li>
+</ul>
+<a name="createJarWithFiles-scala.collection.immutable.Map-java.io.File-">
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+</a>
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+<li class="blockList">
+<h4>createJarWithFiles</h4>
+<pre>public static&nbsp;java.net.URL&nbsp;createJarWithFiles(scala.collection.immutable.Map&lt;String,String&gt;&nbsp;files,
+                                              java.io.File&nbsp;dir)</pre>
+<div class="block">Create a jar file containing multiple files. The <code>files</code> map contains a mapping of
+ file names in the jar file to their contents.</div>
+<dl>
+<dt><span class="paramLabel">Parameters:</span></dt>
+<dd><code>files</code> - (undocumented)</dd>
+<dd><code>dir</code> - (undocumented)</dd>
+<dt><span class="returnLabel">Returns:</span></dt>
+<dd>(undocumented)</dd>
+</dl>
+</li>
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+<a name="createJar-scala.collection.Seq-java.io.File-scala.Option-">
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+<h4>createJar</h4>
+<pre>public static&nbsp;java.net.URL&nbsp;createJar(scala.collection.Seq&lt;java.io.File&gt;&nbsp;files,
+                                     java.io.File&nbsp;jarFile,
+                                     scala.Option&lt;String&gt;&nbsp;directoryPrefix)</pre>
+<div class="block">Create a jar file that contains this set of files. All files will be located in the specified
+ directory or at the root of the jar.</div>
+<dl>
+<dt><span class="paramLabel">Parameters:</span></dt>
+<dd><code>files</code> - (undocumented)</dd>
+<dd><code>jarFile</code> - (undocumented)</dd>
+<dd><code>directoryPrefix</code> - (undocumented)</dd>
+<dt><span class="returnLabel">Returns:</span></dt>
+<dd>(undocumented)</dd>
+</dl>
+</li>
+</ul>
+<a name="createCompiledClass-java.lang.String-java.io.File-org.apache.spark.TestUtils.JavaSourceFromString-scala.collection.Seq-">
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+</a>
+<ul class="blockList">
+<li class="blockList">
+<h4>createCompiledClass</h4>
+<pre>public static&nbsp;java.io.File&nbsp;createCompiledClass(String&nbsp;className,
+                                               java.io.File&nbsp;destDir,
+                                               org.apache.spark.TestUtils.JavaSourceFromString&nbsp;sourceFile,
+                                               scala.collection.Seq&lt;java.net.URL&gt;&nbsp;classpathUrls)</pre>
+<div class="block">Creates a compiled class with the source file. Class file will be placed in destDir.</div>
+</li>
+</ul>
+<a name="createCompiledClass-java.lang.String-java.io.File-java.lang.String-java.lang.String-scala.collection.Seq-">
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+<li class="blockList">
+<h4>createCompiledClass</h4>
+<pre>public static&nbsp;java.io.File&nbsp;createCompiledClass(String&nbsp;className,
+                                               java.io.File&nbsp;destDir,
+                                               String&nbsp;toStringValue,
+                                               String&nbsp;baseClass,
+                                               scala.collection.Seq&lt;java.net.URL&gt;&nbsp;classpathUrls)</pre>
+<div class="block">Creates a compiled class with the given name. Class file will be placed in destDir.</div>
+</li>
+</ul>
+<a name="assertSpilled-org.apache.spark.SparkContext-java.lang.String-scala.Function0-">
+<!--   -->
+</a>
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+<li class="blockList">
+<h4>assertSpilled</h4>
+<pre>public static&nbsp;&lt;T&gt;&nbsp;void&nbsp;assertSpilled(<a href="../../../org/apache/spark/SparkContext.html" title="class in org.apache.spark">SparkContext</a>&nbsp;sc,
+                                     String&nbsp;identifier,
+                                     scala.Function0&lt;T&gt;&nbsp;body)</pre>
+<div class="block">Run some code involving jobs submitted to the given context and assert that the jobs spilled.</div>
+<dl>
+<dt><span class="paramLabel">Parameters:</span></dt>
+<dd><code>sc</code> - (undocumented)</dd>
+<dd><code>identifier</code> - (undocumented)</dd>
+<dd><code>body</code> - (undocumented)</dd>
+</dl>
+</li>
+</ul>
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+<h4>assertNotSpilled</h4>
+<pre>public static&nbsp;&lt;T&gt;&nbsp;void&nbsp;assertNotSpilled(<a href="../../../org/apache/spark/SparkContext.html" title="class in org.apache.spark">SparkContext</a>&nbsp;sc,
+                                        String&nbsp;identifier,
+                                        scala.Function0&lt;T&gt;&nbsp;body)</pre>
+<div class="block">Run some code involving jobs submitted to the given context and assert that the jobs
+ did not spill.</div>
+<dl>
+<dt><span class="paramLabel">Parameters:</span></dt>
+<dd><code>sc</code> - (undocumented)</dd>
+<dd><code>identifier</code> - (undocumented)</dd>
+<dd><code>body</code> - (undocumented)</dd>
+</dl>
+</li>
+</ul>
+<a name="testCommandAvailable-java.lang.String-">
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+<pre>public static&nbsp;boolean&nbsp;testCommandAvailable(String&nbsp;command)</pre>
+<div class="block">Test if a command is available.</div>
+<dl>
+<dt><span class="paramLabel">Parameters:</span></dt>
+<dd><code>command</code> - (undocumented)</dd>
+<dt><span class="returnLabel">Returns:</span></dt>
+<dd>(undocumented)</dd>
+</dl>
+</li>
+</ul>
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+</a>
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+<li class="blockList">
+<h4>httpResponseCode</h4>
+<pre>public static&nbsp;int&nbsp;httpResponseCode(java.net.URL&nbsp;url,
+                                   String&nbsp;method,
+                                   scala.collection.Seq&lt;scala.Tuple2&lt;String,String&gt;&gt;&nbsp;headers)</pre>
+<div class="block">Returns the response code from an HTTP(S) URL.</div>
+<dl>
+<dt><span class="paramLabel">Parameters:</span></dt>
+<dd><code>url</code> - (undocumented)</dd>
+<dd><code>method</code> - (undocumented)</dd>
+<dd><code>headers</code> - (undocumented)</dd>
+<dt><span class="returnLabel">Returns:</span></dt>
+<dd>(undocumented)</dd>
+</dl>
+</li>
+</ul>
+</li>
+</ul>
+</li>
+</ul>
+</div>
+</div>
+<!-- ========= END OF CLASS DATA ========= -->
+<!-- ======= START OF BOTTOM NAVBAR ====== -->
+<div class="bottomNav"><a name="navbar.bottom">
+<!--   -->
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+<!-- NewPage -->
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+<head>
+<!-- Generated by javadoc (1.8.0_144) on Wed Feb 28 00:07:24 PST 2018 -->
+<title>UnknownReason (Spark 2.3.0 JavaDoc)</title>
+<meta name="date" content="2018-02-28">
+<link rel="stylesheet" type="text/css" href="../../../stylesheet.css" title="Style">
+<script type="text/javascript" src="../../../script.js"></script>
+</head>
+<body>
+<script type="text/javascript"><!--
+    try {
+        if (location.href.indexOf('is-external=true') == -1) {
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+    }
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+var activeTableTab = "activeTableTab";
+</script>
+<noscript>
+<div>JavaScript is disabled on your browser.</div>
+</noscript>
+<!-- ========= START OF TOP NAVBAR ======= -->
+<div class="topNav"><a name="navbar.top">
+<!--   -->
+</a>
+<div class="skipNav"><a href="#skip.navbar.top" title="Skip navigation links">Skip navigation links</a></div>
+<a name="navbar.top.firstrow">
+<!--   -->
+</a>
+<ul class="navList" title="Navigation">
+<li><a href="../../../overview-summary.html">Overview</a></li>
+<li><a href="package-summary.html">Package</a></li>
+<li class="navBarCell1Rev">Class</li>
+<li><a href="package-tree.html">Tree</a></li>
+<li><a href="../../../deprecated-list.html">Deprecated</a></li>
+<li><a href="../../../index-all.html">Index</a></li>
+<li><a href="../../../help-doc.html">Help</a></li>
+</ul>
+</div>
+<div class="subNav">
+<ul class="navList">
+<li><a href="../../../org/apache/spark/TestUtils.html" title="class in org.apache.spark"><span class="typeNameLink">Prev&nbsp;Class</span></a></li>
+<li>Next&nbsp;Class</li>
+</ul>
+<ul class="navList">
+<li><a href="../../../index.html?org/apache/spark/UnknownReason.html" target="_top">Frames</a></li>
+<li><a href="UnknownReason.html" target="_top">No&nbsp;Frames</a></li>
+</ul>
+<ul class="navList" id="allclasses_navbar_top">
+<li><a href="../../../allclasses-noframe.html">All&nbsp;Classes</a></li>
+</ul>
+<div>
+<script type="text/javascript"><!--
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+  //-->
+</script>
+</div>
+<div>
+<ul class="subNavList">
+<li>Summary:&nbsp;</li>
+<li>Nested&nbsp;|&nbsp;</li>
+<li>Field&nbsp;|&nbsp;</li>
+<li><a href="#constructor.summary">Constr</a>&nbsp;|&nbsp;</li>
+<li><a href="#method.summary">Method</a></li>
+</ul>
+<ul class="subNavList">
+<li>Detail:&nbsp;</li>
+<li>Field&nbsp;|&nbsp;</li>
+<li><a href="#constructor.detail">Constr</a>&nbsp;|&nbsp;</li>
+<li><a href="#method.detail">Method</a></li>
+</ul>
+</div>
+<a name="skip.navbar.top">
+<!--   -->
+</a></div>
+<!-- ========= END OF TOP NAVBAR ========= -->
+<!-- ======== START OF CLASS DATA ======== -->
+<div class="header">
+<div class="subTitle">org.apache.spark</div>
+<h2 title="Class UnknownReason" class="title">Class UnknownReason</h2>
+</div>
+<div class="contentContainer">
+<ul class="inheritance">
+<li>Object</li>
+<li>
+<ul class="inheritance">
+<li>org.apache.spark.UnknownReason</li>
+</ul>
+</li>
+</ul>
+<div class="description">
+<ul class="blockList">
+<li class="blockList">
+<hr>
+<br>
+<pre>public class <span class="typeNameLabel">UnknownReason</span>
+extends Object</pre>
+<div class="block">:: DeveloperApi ::
+ We don't know why the task ended -- for example, because of a ClassNotFound exception when
+ deserializing the task result.</div>
+</li>
+</ul>
+</div>
+<div class="summary">
+<ul class="blockList">
+<li class="blockList">
+<!-- ======== CONSTRUCTOR SUMMARY ======== -->
+<ul class="blockList">
+<li class="blockList"><a name="constructor.summary">
+<!--   -->
+</a>
+<h3>Constructor Summary</h3>
+<table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Constructor Summary table, listing constructors, and an explanation">
+<caption><span>Constructors</span><span class="tabEnd">&nbsp;</span></caption>
+<tr>
+<th class="colOne" scope="col">Constructor and Description</th>
+</tr>
+<tr class="altColor">
+<td class="colOne"><code><span class="memberNameLink"><a href="../../../org/apache/spark/UnknownReason.html#UnknownReason--">UnknownReason</a></span>()</code>&nbsp;</td>
+</tr>
+</table>
+</li>
+</ul>
+<!-- ========== METHOD SUMMARY =========== -->
+<ul class="blockList">
+<li class="blockList"><a name="method.summary">
+<!--   -->
+</a>
+<h3>Method Summary</h3>
+<table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation">
+<caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd">&nbsp;</span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">Static Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t3" class="tableTab"><span><a href="javascript:show(4);">Abstract Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd">&nbsp;</span></span></caption>
+<tr>
+<th class="colFirst" scope="col">Modifier and Type</th>
+<th class="colLast" scope="col">Method and Description</th>
+</tr>
+<tr id="i0" class="altColor">
+<td class="colFirst"><code>abstract static boolean</code></td>
+<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/spark/UnknownReason.html#canEqual-java.lang.Object-">canEqual</a></span>(Object&nbsp;that)</code>&nbsp;</td>
+</tr>
+<tr id="i1" class="rowColor">
+<td class="colFirst"><code>static boolean</code></td>
+<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/spark/UnknownReason.html#countTowardsTaskFailures--">countTowardsTaskFailures</a></span>()</code>&nbsp;</td>
+</tr>
+<tr id="i2" class="altColor">
+<td class="colFirst"><code>abstract static boolean</code></td>
+<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/spark/UnknownReason.html#equals-java.lang.Object-">equals</a></span>(Object&nbsp;that)</code>&nbsp;</td>
+</tr>
+<tr id="i3" class="rowColor">
+<td class="colFirst"><code>abstract static int</code></td>
+<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/spark/UnknownReason.html#productArity--">productArity</a></span>()</code>&nbsp;</td>
+</tr>
+<tr id="i4" class="altColor">
+<td class="colFirst"><code>abstract static Object</code></td>
+<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/spark/UnknownReason.html#productElement-int-">productElement</a></span>(int&nbsp;n)</code>&nbsp;</td>
+</tr>
+<tr id="i5" class="rowColor">
+<td class="colFirst"><code>static scala.collection.Iterator&lt;Object&gt;</code></td>
+<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/spark/UnknownReason.html#productIterator--">productIterator</a></span>()</code>&nbsp;</td>
+</tr>
+<tr id="i6" class="altColor">
+<td class="colFirst"><code>static String</code></td>
+<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/spark/UnknownReason.html#productPrefix--">productPrefix</a></span>()</code>&nbsp;</td>
+</tr>
+<tr id="i7" class="rowColor">
+<td class="colFirst"><code>static String</code></td>
+<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/spark/UnknownReason.html#toErrorString--">toErrorString</a></span>()</code>&nbsp;</td>
+</tr>
+</table>
+<ul class="blockList">
+<li class="blockList"><a name="methods.inherited.from.class.Object">
+<!--   -->
+</a>
+<h3>Methods inherited from class&nbsp;Object</h3>
+<code>equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</code></li>
+</ul>
+</li>
+</ul>
+</li>
+</ul>
+</div>
+<div class="details">
+<ul class="blockList">
+<li class="blockList">
+<!-- ========= CONSTRUCTOR DETAIL ======== -->
+<ul class="blockList">
+<li class="blockList"><a name="constructor.detail">
+<!--   -->
+</a>
+<h3>Constructor Detail</h3>
+<a name="UnknownReason--">
+<!--   -->
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+<ul class="blockListLast">
+<li class="blockList">
+<h4>UnknownReason</h4>
+<pre>public&nbsp;UnknownReason()</pre>
+</li>
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