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| public class <a href="../../../../../src-html/org/apache/hadoop/hbase/util/Threads.html#line.37">Threads</a> |
| extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></pre> |
| <div class="block">Thread Utility</div> |
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| <td class="colFirst"><code>private static org.slf4j.Logger</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/util/Threads.html#LOG">LOG</a></span></code> </td> |
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| <tr class="rowColor"> |
| <td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Thread.UncaughtExceptionHandler.html?is-external=true" title="class or interface in java.lang">Thread.UncaughtExceptionHandler</a></code></td> |
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| <td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/ThreadPoolExecutor.html?is-external=true" title="class or interface in java.util.concurrent">ThreadPoolExecutor</a></code></td> |
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| long timeout, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/TimeUnit.html?is-external=true" title="class or interface in java.util.concurrent">TimeUnit</a> unit, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/ThreadFactory.html?is-external=true" title="class or interface in java.util.concurrent">ThreadFactory</a> threadFactory)</code> |
| <div class="block">Create a new CachedThreadPool with a bounded number as the maximum |
| thread size in the pool.</div> |
| </td> |
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| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>static void</code></td> |
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| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> title)</code> |
| <div class="block">Print all of the thread's information and stack traces.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>static <T extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Thread.html?is-external=true" title="class or interface in java.lang">Thread</a>><br>T</code></td> |
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| <div class="block">Utility method that sets name, daemon status and starts passed thread.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>static <T extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Thread.html?is-external=true" title="class or interface in java.lang">Thread</a>><br>T</code></td> |
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| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> name)</code> |
| <div class="block">Utility method that sets name, daemon status and starts passed thread.</div> |
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| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>static <T extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Thread.html?is-external=true" title="class or interface in java.lang">Thread</a>><br>T</code></td> |
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| <div class="block">Utility method that sets name, daemon status and starts passed thread.</div> |
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| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code>static void</code></td> |
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| <div class="block">Sets an UncaughtExceptionHandler for the thread which logs the |
| Exception stack if the thread dies.</div> |
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| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code>static void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/util/Threads.html#shutdown-java.lang.Thread-">shutdown</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Thread.html?is-external=true" title="class or interface in java.lang">Thread</a> t)</code> |
| <div class="block">Shutdown passed thread using isAlive and join.</div> |
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| <tr id="i7" class="rowColor"> |
| <td class="colFirst"><code>static void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/util/Threads.html#shutdown-java.lang.Thread-long-">shutdown</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Thread.html?is-external=true" title="class or interface in java.lang">Thread</a> t, |
| long joinwait)</code> |
| <div class="block">Shutdown passed thread using isAlive and join.</div> |
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| <tr id="i8" class="altColor"> |
| <td class="colFirst"><code>static void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/util/Threads.html#sleep-long-">sleep</a></span>(long millis)</code> |
| <div class="block">If interrupted, just prints out the interrupt on STDOUT, resets interrupt and returns</div> |
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| <tr id="i9" class="rowColor"> |
| <td class="colFirst"><code>static void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/util/Threads.html#sleepWithoutInterrupt-long-">sleepWithoutInterrupt</a></span>(long msToWait)</code> |
| <div class="block">Sleeps for the given amount of time even if interrupted.</div> |
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| <tr id="i10" class="altColor"> |
| <td class="colFirst"><code>static void</code></td> |
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| <div class="block">Utility method that sets name, daemon status and starts passed thread.</div> |
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| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>t</code> - thread to run</dd> |
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| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> name)</pre> |
| <div class="block">Utility method that sets name, daemon status and starts passed thread.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>t</code> - thread to frob</dd> |
| <dd><code>name</code> - new name</dd> |
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| <dd>Returns the passed Thread <code>t</code>.</dd> |
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| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Thread.UncaughtExceptionHandler.html?is-external=true" title="class or interface in java.lang">Thread.UncaughtExceptionHandler</a> handler)</pre> |
| <div class="block">Utility method that sets name, daemon status and starts passed thread.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>t</code> - thread to frob</dd> |
| <dd><code>name</code> - new name</dd> |
| <dd><code>handler</code> - A handler to set on the thread. Pass null if want to use default handler.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Returns the passed Thread <code>t</code>.</dd> |
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| <h4>shutdown</h4> |
| <pre>public static void <a href="../../../../../src-html/org/apache/hadoop/hbase/util/Threads.html#line.84">shutdown</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Thread.html?is-external=true" title="class or interface in java.lang">Thread</a> t)</pre> |
| <div class="block">Shutdown passed thread using isAlive and join.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>t</code> - Thread to shutdown</dd> |
| </dl> |
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| <h4>shutdown</h4> |
| <pre>public static void <a href="../../../../../src-html/org/apache/hadoop/hbase/util/Threads.html#line.93">shutdown</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Thread.html?is-external=true" title="class or interface in java.lang">Thread</a> t, |
| long joinwait)</pre> |
| <div class="block">Shutdown passed thread using isAlive and join.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>joinwait</code> - Pass 0 if we're to wait forever.</dd> |
| <dd><code>t</code> - Thread to shutdown</dd> |
| </dl> |
| </li> |
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| <h4>threadDumpingIsAlive</h4> |
| <pre>public static void <a href="../../../../../src-html/org/apache/hadoop/hbase/util/Threads.html#line.110">threadDumpingIsAlive</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Thread.html?is-external=true" title="class or interface in java.lang">Thread</a> t) |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/InterruptedException.html?is-external=true" title="class or interface in java.lang">InterruptedException</a></pre> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>t</code> - Waits on the passed thread to die dumping a threaddump every |
| minute while its up.</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/InterruptedException.html?is-external=true" title="class or interface in java.lang">InterruptedException</a></code></dd> |
| </dl> |
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| <h4>sleep</h4> |
| <pre>public static void <a href="../../../../../src-html/org/apache/hadoop/hbase/util/Threads.html#line.130">sleep</a>(long millis)</pre> |
| <div class="block">If interrupted, just prints out the interrupt on STDOUT, resets interrupt and returns</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>millis</code> - How long to sleep for in milliseconds.</dd> |
| </dl> |
| </li> |
| </ul> |
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| <pre>public static void <a href="../../../../../src-html/org/apache/hadoop/hbase/util/Threads.html#line.144">sleepWithoutInterrupt</a>(long msToWait)</pre> |
| <div class="block">Sleeps for the given amount of time even if interrupted. Preserves |
| the interrupt status.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>msToWait</code> - the amount of time to sleep in milliseconds</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getBoundedCachedThreadPool-int-long-java.util.concurrent.TimeUnit-java.util.concurrent.ThreadFactory-"> |
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| <h4>getBoundedCachedThreadPool</h4> |
| <pre>public static <a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/ThreadPoolExecutor.html?is-external=true" title="class or interface in java.util.concurrent">ThreadPoolExecutor</a> <a href="../../../../../src-html/org/apache/hadoop/hbase/util/Threads.html#line.173">getBoundedCachedThreadPool</a>(int maxCachedThread, |
| long timeout, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/TimeUnit.html?is-external=true" title="class or interface in java.util.concurrent">TimeUnit</a> unit, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/ThreadFactory.html?is-external=true" title="class or interface in java.util.concurrent">ThreadFactory</a> threadFactory)</pre> |
| <div class="block">Create a new CachedThreadPool with a bounded number as the maximum |
| thread size in the pool.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>maxCachedThread</code> - the maximum thread could be created in the pool</dd> |
| <dd><code>timeout</code> - the maximum time to wait</dd> |
| <dd><code>unit</code> - the time unit of the timeout argument</dd> |
| <dd><code>threadFactory</code> - the factory to use when creating new threads</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>threadPoolExecutor the cachedThreadPool with a bounded number |
| as the maximum thread size in the pool.</dd> |
| </dl> |
| </li> |
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| <h4>setLoggingUncaughtExceptionHandler</h4> |
| <pre>public static void <a href="../../../../../src-html/org/apache/hadoop/hbase/util/Threads.html#line.187">setLoggingUncaughtExceptionHandler</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Thread.html?is-external=true" title="class or interface in java.lang">Thread</a> t)</pre> |
| <div class="block">Sets an UncaughtExceptionHandler for the thread which logs the |
| Exception stack if the thread dies.</div> |
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| <h4>printThreadInfo</h4> |
| <pre>public static void <a href="../../../../../src-html/org/apache/hadoop/hbase/util/Threads.html#line.197">printThreadInfo</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/io/PrintStream.html?is-external=true" title="class or interface in java.io">PrintStream</a> stream, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> title)</pre> |
| <div class="block">Print all of the thread's information and stack traces. Wrapper around Hadoop's method.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>stream</code> - the stream to</dd> |
| <dd><code>title</code> - a string title for the stack trace</dd> |
| </dl> |
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