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| <h2 title="Enum ClusterControllerImpl.State" class="title">Enum ClusterControllerImpl.State</h2> |
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| <li>org.apache.drill.yarn.appMaster.ClusterControllerImpl.State</li> |
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| <pre>public static enum <span class="typeNameLabel">ClusterControllerImpl.State</span> |
| extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Enum.html?is-external=true" title="class or interface in java.lang">Enum</a><<a href="../../../../../org/apache/drill/yarn/appMaster/ClusterControllerImpl.State.html" title="enum in org.apache.drill.yarn.appMaster">ClusterControllerImpl.State</a>></pre> |
| <div class="block">Controller lifecycle state.</div> |
| </li> |
| </ul> |
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| <h3>Enum Constant Summary</h3> |
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| <caption><span>Enum Constants</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colOne" scope="col">Enum Constant and Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/drill/yarn/appMaster/ClusterControllerImpl.State.html#ENDED">ENDED</a></span></code> |
| <div class="block">The controller has shut down.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/drill/yarn/appMaster/ClusterControllerImpl.State.html#ENDING">ENDING</a></span></code> |
| <div class="block">Controller is shutting down.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/drill/yarn/appMaster/ClusterControllerImpl.State.html#FAILED">FAILED</a></span></code> |
| <div class="block">Something bad happened on start-up; the AM can't start and must shut |
| down.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/drill/yarn/appMaster/ClusterControllerImpl.State.html#LIVE">LIVE</a></span></code> |
| <div class="block">Normal operating state: the controller seeks to maintain the desired |
| number of tasks.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/drill/yarn/appMaster/ClusterControllerImpl.State.html#START">START</a></span></code> |
| <div class="block">Cluster is starting.</div> |
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| <td class="colFirst"><code>static <a href="../../../../../org/apache/drill/yarn/appMaster/ClusterControllerImpl.State.html" title="enum in org.apache.drill.yarn.appMaster">ClusterControllerImpl.State</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/drill/yarn/appMaster/ClusterControllerImpl.State.html#valueOf-java.lang.String-">valueOf</a></span>(<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">Returns the enum constant of this type with the specified name.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>static <a href="../../../../../org/apache/drill/yarn/appMaster/ClusterControllerImpl.State.html" title="enum in org.apache.drill.yarn.appMaster">ClusterControllerImpl.State</a>[]</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/drill/yarn/appMaster/ClusterControllerImpl.State.html#values--">values</a></span>()</code> |
| <div class="block">Returns an array containing the constants of this enum type, in |
| the order they are declared.</div> |
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| <h4>START</h4> |
| <pre>public static final <a href="../../../../../org/apache/drill/yarn/appMaster/ClusterControllerImpl.State.html" title="enum in org.apache.drill.yarn.appMaster">ClusterControllerImpl.State</a> START</pre> |
| <div class="block">Cluster is starting. Things are in a partially-built state. No tasks are |
| started until the cluster moves to LIVE.</div> |
| </li> |
| </ul> |
| <a name="LIVE"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>LIVE</h4> |
| <pre>public static final <a href="../../../../../org/apache/drill/yarn/appMaster/ClusterControllerImpl.State.html" title="enum in org.apache.drill.yarn.appMaster">ClusterControllerImpl.State</a> LIVE</pre> |
| <div class="block">Normal operating state: the controller seeks to maintain the desired |
| number of tasks.</div> |
| </li> |
| </ul> |
| <a name="ENDING"> |
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| </a> |
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| <li class="blockList"> |
| <h4>ENDING</h4> |
| <pre>public static final <a href="../../../../../org/apache/drill/yarn/appMaster/ClusterControllerImpl.State.html" title="enum in org.apache.drill.yarn.appMaster">ClusterControllerImpl.State</a> ENDING</pre> |
| <div class="block">Controller is shutting down. Tasks are gracefully (where possible) ended; |
| no new tasks are started. (That is, when we detect the exit of a task, |
| the controller no longer immediately tries to start a replacement.</div> |
| </li> |
| </ul> |
| <a name="ENDED"> |
| <!-- --> |
| </a> |
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| <h4>ENDED</h4> |
| <pre>public static final <a href="../../../../../org/apache/drill/yarn/appMaster/ClusterControllerImpl.State.html" title="enum in org.apache.drill.yarn.appMaster">ClusterControllerImpl.State</a> ENDED</pre> |
| <div class="block">The controller has shut down. All tasks and threads are stopped. The |
| controller allows the main thread (which has been patiently waiting) to |
| continue, allowing the AM itself to shut down. Thus, this is a very |
| short-lived state.</div> |
| </li> |
| </ul> |
| <a name="FAILED"> |
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| </a> |
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| <h4>FAILED</h4> |
| <pre>public static final <a href="../../../../../org/apache/drill/yarn/appMaster/ClusterControllerImpl.State.html" title="enum in org.apache.drill.yarn.appMaster">ClusterControllerImpl.State</a> FAILED</pre> |
| <div class="block">Something bad happened on start-up; the AM can't start and must shut |
| down.</div> |
| </li> |
| </ul> |
| </li> |
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| <h4>values</h4> |
| <pre>public static <a href="../../../../../org/apache/drill/yarn/appMaster/ClusterControllerImpl.State.html" title="enum in org.apache.drill.yarn.appMaster">ClusterControllerImpl.State</a>[] values()</pre> |
| <div class="block">Returns an array containing the constants of this enum type, in |
| the order they are declared. This method may be used to iterate |
| over the constants as follows: |
| <pre> |
| for (ClusterControllerImpl.State c : ClusterControllerImpl.State.values()) |
| System.out.println(c); |
| </pre></div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>an array containing the constants of this enum type, in the order they are declared</dd> |
| </dl> |
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| <h4>valueOf</h4> |
| <pre>public static <a href="../../../../../org/apache/drill/yarn/appMaster/ClusterControllerImpl.State.html" title="enum in org.apache.drill.yarn.appMaster">ClusterControllerImpl.State</a> valueOf(<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">Returns the enum constant of this type with the specified name. |
| The string must match <i>exactly</i> an identifier used to declare an |
| enum constant in this type. (Extraneous whitespace characters are |
| not permitted.)</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>name</code> - the name of the enum constant to be returned.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the enum constant with the specified name</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</a></code> - if this enum type has no constant with the specified name</dd> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/NullPointerException.html?is-external=true" title="class or interface in java.lang">NullPointerException</a></code> - if the argument is null</dd> |
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