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<div class="subTitle"><span class="packageLabelInType">Package</span>&nbsp;<a href="package-summary.html">org.apache.heron.scheduler.mesos.framework</a></div>
<h2 title="Class MesosFramework" class="title">Class MesosFramework</h2>
</div>
<div class="contentContainer">
<ul class="inheritance">
<li>java.lang.Object</li>
<li>
<ul class="inheritance">
<li>org.apache.heron.scheduler.mesos.framework.MesosFramework</li>
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<dt>All Implemented Interfaces:</dt>
<dd><code>org.apache.mesos.Scheduler</code></dd>
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<pre>public class <span class="typeNameLabel">MesosFramework</span>
extends java.lang.Object
implements org.apache.mesos.Scheduler</pre>
<div class="block">Mesos Framework, communicating with Mesos Master, to do the actual scheduling.
We put synchronized block:
```
synchronized(this) {...}
```
in critical areas for public methods potentially modifying its value.
Make sure not acquiring other locks inside this block to prevent the potential for deadlock.</div>
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<caption><span>Constructors</span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Constructor</th>
<th class="colLast" scope="col">Description</th>
</tr>
<tr class="altColor">
<th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E(org.apache.heron.spi.common.Config,org.apache.heron.spi.common.Config)">MesosFramework</a></span>&#8203;(<a href="../../../spi/common/Config.html" title="class in org.apache.heron.spi.common">Config</a>&nbsp;heronConfig,
<a href="../../../spi/common/Config.html" title="class in org.apache.heron.spi.common">Config</a>&nbsp;heronRuntime)</code></th>
<td class="colLast">&nbsp;</td>
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<caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd">&nbsp;</span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance 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="colSecond" scope="col">Method</th>
<th class="colLast" scope="col">Description</th>
</tr>
<tr id="i0" class="altColor">
<td class="colFirst"><code>boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#createJob(java.util.Map)">createJob</a></span>&#8203;(java.util.Map&lt;java.lang.Integer,&#8203;<a href="BaseContainer.html" title="class in org.apache.heron.scheduler.mesos.framework">BaseContainer</a>&gt;&nbsp;jobDefinition)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#disconnected(org.apache.mesos.SchedulerDriver)">disconnected</a></span>&#8203;(org.apache.mesos.SchedulerDriver&nbsp;schedulerDriver)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#error(org.apache.mesos.SchedulerDriver,java.lang.String)">error</a></span>&#8203;(org.apache.mesos.SchedulerDriver&nbsp;schedulerDriver,
java.lang.String&nbsp;message)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#executorLost(org.apache.mesos.SchedulerDriver,org.apache.mesos.Protos.ExecutorID,org.apache.mesos.Protos.SlaveID,int)">executorLost</a></span>&#8203;(org.apache.mesos.SchedulerDriver&nbsp;schedulerDriver,
org.apache.mesos.Protos.ExecutorID&nbsp;executorID,
org.apache.mesos.Protos.SlaveID&nbsp;slaveID,
int&nbsp;status)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#frameworkMessage(org.apache.mesos.SchedulerDriver,org.apache.mesos.Protos.ExecutorID,org.apache.mesos.Protos.SlaveID,byte%5B%5D)">frameworkMessage</a></span>&#8203;(org.apache.mesos.SchedulerDriver&nbsp;schedulerDriver,
org.apache.mesos.Protos.ExecutorID&nbsp;executorID,
org.apache.mesos.Protos.SlaveID&nbsp;slaveID,
byte[]&nbsp;data)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code>protected java.util.List&lt;<a href="LaunchableTask.html" title="class in org.apache.heron.scheduler.mesos.framework">LaunchableTask</a>&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#generateLaunchableTasks(java.util.Map)">generateLaunchableTasks</a></span>&#8203;(java.util.Map&lt;org.apache.mesos.Protos.Offer,&#8203;<a href="TaskResources.html" title="class in org.apache.heron.scheduler.mesos.framework">TaskResources</a>&gt;&nbsp;offerResources)</code></th>
<td class="colLast">
<div class="block">Generate launchable tasks basing on offer resources</div>
</td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code>protected java.util.Map&lt;java.lang.Integer,&#8203;<a href="BaseContainer.html" title="class in org.apache.heron.scheduler.mesos.framework">BaseContainer</a>&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getContainersInfo()">getContainersInfo</a></span>()</code></th>
<td class="colLast">
<div class="block">Followings are used for unit test only</div>
</td>
</tr>
<tr id="i7" class="rowColor">
<td class="colFirst"><code>org.apache.mesos.Protos.FrameworkID</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getFrameworkId()">getFrameworkId</a></span>()</code></th>
<td class="colLast">
<div class="block">Get the FrameworkID registered with Mesos Master</div>
</td>
</tr>
<tr id="i8" class="altColor">
<td class="colFirst"><code>protected org.apache.mesos.SchedulerDriver</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getSchedulerDriver()">getSchedulerDriver</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i9" class="rowColor">
<td class="colFirst"><code>protected java.util.Map&lt;java.lang.Integer,&#8203;java.lang.String&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getTasksId()">getTasksId</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i10" class="altColor">
<td class="colFirst"><code>protected java.util.Queue&lt;java.lang.String&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getToScheduleTasks()">getToScheduleTasks</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i11" class="rowColor">
<td class="colFirst"><code>protected void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#handleMesosFailure(java.lang.String)">handleMesosFailure</a></span>&#8203;(java.lang.String&nbsp;taskId)</code></th>
<td class="colLast">
<div class="block">Restart a failed task unless exceeding the retires limitation</div>
</td>
</tr>
<tr id="i12" class="altColor">
<td class="colFirst"><code>protected void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#handleMesosStatusUpdate(java.lang.String,org.apache.mesos.Protos.TaskStatus)">handleMesosStatusUpdate</a></span>&#8203;(java.lang.String&nbsp;taskId,
org.apache.mesos.Protos.TaskStatus&nbsp;status)</code></th>
<td class="colLast">
<div class="block">Handle status update from mesos master
1.</div>
</td>
</tr>
<tr id="i13" class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#isTerminated()">isTerminated</a></span>()</code></th>
<td class="colLast">
<div class="block">Check whether the MesosFramework has been terminated</div>
</td>
</tr>
<tr id="i14" class="altColor">
<td class="colFirst"><code>boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#killJob()">killJob</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i15" class="rowColor">
<td class="colFirst"><code>protected void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#launchTasks(java.util.List)">launchTasks</a></span>&#8203;(java.util.List&lt;<a href="LaunchableTask.html" title="class in org.apache.heron.scheduler.mesos.framework">LaunchableTask</a>&gt;&nbsp;tasks)</code></th>
<td class="colLast">
<div class="block">Launch tasks</div>
</td>
</tr>
<tr id="i16" class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#offerRescinded(org.apache.mesos.SchedulerDriver,org.apache.mesos.Protos.OfferID)">offerRescinded</a></span>&#8203;(org.apache.mesos.SchedulerDriver&nbsp;schedulerDriver,
org.apache.mesos.Protos.OfferID&nbsp;offerID)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i17" class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#registered(org.apache.mesos.SchedulerDriver,org.apache.mesos.Protos.FrameworkID,org.apache.mesos.Protos.MasterInfo)">registered</a></span>&#8203;(org.apache.mesos.SchedulerDriver&nbsp;schedulerDriver,
org.apache.mesos.Protos.FrameworkID&nbsp;frameworkID,
org.apache.mesos.Protos.MasterInfo&nbsp;masterInfo)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i18" class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#reregistered(org.apache.mesos.SchedulerDriver,org.apache.mesos.Protos.MasterInfo)">reregistered</a></span>&#8203;(org.apache.mesos.SchedulerDriver&nbsp;schedulerDriver,
org.apache.mesos.Protos.MasterInfo&nbsp;masterInfo)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i19" class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#resourceOffers(org.apache.mesos.SchedulerDriver,java.util.List)">resourceOffers</a></span>&#8203;(org.apache.mesos.SchedulerDriver&nbsp;schedulerDriver,
java.util.List&lt;org.apache.mesos.Protos.Offer&gt;&nbsp;offers)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i20" class="altColor">
<td class="colFirst"><code>boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#restartJob(int)">restartJob</a></span>&#8203;(int&nbsp;containerIndex)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i21" class="rowColor">
<td class="colFirst"><code>protected boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#scheduleNewTask(java.lang.String)">scheduleNewTask</a></span>&#8203;(java.lang.String&nbsp;taskId)</code></th>
<td class="colLast">
<div class="block">Schedule a new task</div>
</td>
</tr>
<tr id="i22" class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#slaveLost(org.apache.mesos.SchedulerDriver,org.apache.mesos.Protos.SlaveID)">slaveLost</a></span>&#8203;(org.apache.mesos.SchedulerDriver&nbsp;schedulerDriver,
org.apache.mesos.Protos.SlaveID&nbsp;slaveID)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i23" class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#statusUpdate(org.apache.mesos.SchedulerDriver,org.apache.mesos.Protos.TaskStatus)">statusUpdate</a></span>&#8203;(org.apache.mesos.SchedulerDriver&nbsp;schedulerDriver,
org.apache.mesos.Protos.TaskStatus&nbsp;taskStatus)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i24" class="altColor">
<td class="colFirst"><code>boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#waitForRegistered(long,java.util.concurrent.TimeUnit)">waitForRegistered</a></span>&#8203;(long&nbsp;timeout,
java.util.concurrent.TimeUnit&nbsp;unit)</code></th>
<td class="colLast">
<div class="block">Causes the current thread to wait for MesosFramework got registered,
unless the thread is interrupted, or the specified waiting time elapses.</div>
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<h3>Methods inherited from class&nbsp;java.lang.Object</h3>
<code>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</code></li>
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<h3>Constructor Detail</h3>
<a id="&lt;init&gt;(org.apache.heron.spi.common.Config,org.apache.heron.spi.common.Config)">
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<h4>MesosFramework</h4>
<pre>public&nbsp;MesosFramework&#8203;(<a href="../../../spi/common/Config.html" title="class in org.apache.heron.spi.common">Config</a>&nbsp;heronConfig,
<a href="../../../spi/common/Config.html" title="class in org.apache.heron.spi.common">Config</a>&nbsp;heronRuntime)</pre>
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<a id="createJob(java.util.Map)">
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<h4>createJob</h4>
<pre class="methodSignature">public&nbsp;boolean&nbsp;createJob&#8203;(java.util.Map&lt;java.lang.Integer,&#8203;<a href="BaseContainer.html" title="class in org.apache.heron.scheduler.mesos.framework">BaseContainer</a>&gt;&nbsp;jobDefinition)</pre>
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<h4>killJob</h4>
<pre class="methodSignature">public&nbsp;boolean&nbsp;killJob()</pre>
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<a id="restartJob(int)">
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<h4>restartJob</h4>
<pre class="methodSignature">public&nbsp;boolean&nbsp;restartJob&#8203;(int&nbsp;containerIndex)</pre>
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<h4>isTerminated</h4>
<pre class="methodSignature">public&nbsp;boolean&nbsp;isTerminated()</pre>
<div class="block">Check whether the MesosFramework has been terminated</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>true if MesosFramework has been terminated</dd>
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<a id="waitForRegistered(long,java.util.concurrent.TimeUnit)">
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<h4>waitForRegistered</h4>
<pre class="methodSignature">public&nbsp;boolean&nbsp;waitForRegistered&#8203;(long&nbsp;timeout,
java.util.concurrent.TimeUnit&nbsp;unit)</pre>
<div class="block">Causes the current thread to wait for MesosFramework got registered,
unless the thread is interrupted, or the specified waiting time elapses.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>timeout</code> - the maximum time to wait</dd>
<dd><code>unit</code> - the time unit of the timeout argument</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>true MesosFramework got registered,
and false if the waiting time elapsed before the count reached zero</dd>
</dl>
</li>
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<a id="getFrameworkId()">
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<h4>getFrameworkId</h4>
<pre class="methodSignature">public&nbsp;org.apache.mesos.Protos.FrameworkID&nbsp;getFrameworkId()</pre>
<div class="block">Get the FrameworkID registered with Mesos Master</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the FrameworkID</dd>
</dl>
</li>
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<a id="registered(org.apache.mesos.SchedulerDriver,org.apache.mesos.Protos.FrameworkID,org.apache.mesos.Protos.MasterInfo)">
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<h4>registered</h4>
<pre class="methodSignature">public&nbsp;void&nbsp;registered&#8203;(org.apache.mesos.SchedulerDriver&nbsp;schedulerDriver,
org.apache.mesos.Protos.FrameworkID&nbsp;frameworkID,
org.apache.mesos.Protos.MasterInfo&nbsp;masterInfo)</pre>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code>registered</code>&nbsp;in interface&nbsp;<code>org.apache.mesos.Scheduler</code></dd>
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<a id="reregistered(org.apache.mesos.SchedulerDriver,org.apache.mesos.Protos.MasterInfo)">
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<h4>reregistered</h4>
<pre class="methodSignature">public&nbsp;void&nbsp;reregistered&#8203;(org.apache.mesos.SchedulerDriver&nbsp;schedulerDriver,
org.apache.mesos.Protos.MasterInfo&nbsp;masterInfo)</pre>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code>reregistered</code>&nbsp;in interface&nbsp;<code>org.apache.mesos.Scheduler</code></dd>
</dl>
</li>
</ul>
<a id="resourceOffers(org.apache.mesos.SchedulerDriver,java.util.List)">
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<h4>resourceOffers</h4>
<pre class="methodSignature">public&nbsp;void&nbsp;resourceOffers&#8203;(org.apache.mesos.SchedulerDriver&nbsp;schedulerDriver,
java.util.List&lt;org.apache.mesos.Protos.Offer&gt;&nbsp;offers)</pre>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code>resourceOffers</code>&nbsp;in interface&nbsp;<code>org.apache.mesos.Scheduler</code></dd>
</dl>
</li>
</ul>
<a id="offerRescinded(org.apache.mesos.SchedulerDriver,org.apache.mesos.Protos.OfferID)">
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<h4>offerRescinded</h4>
<pre class="methodSignature">public&nbsp;void&nbsp;offerRescinded&#8203;(org.apache.mesos.SchedulerDriver&nbsp;schedulerDriver,
org.apache.mesos.Protos.OfferID&nbsp;offerID)</pre>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code>offerRescinded</code>&nbsp;in interface&nbsp;<code>org.apache.mesos.Scheduler</code></dd>
</dl>
</li>
</ul>
<a id="statusUpdate(org.apache.mesos.SchedulerDriver,org.apache.mesos.Protos.TaskStatus)">
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<h4>statusUpdate</h4>
<pre class="methodSignature">public&nbsp;void&nbsp;statusUpdate&#8203;(org.apache.mesos.SchedulerDriver&nbsp;schedulerDriver,
org.apache.mesos.Protos.TaskStatus&nbsp;taskStatus)</pre>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code>statusUpdate</code>&nbsp;in interface&nbsp;<code>org.apache.mesos.Scheduler</code></dd>
</dl>
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</ul>
<a id="handleMesosStatusUpdate(java.lang.String,org.apache.mesos.Protos.TaskStatus)">
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<h4>handleMesosStatusUpdate</h4>
<pre class="methodSignature">protected&nbsp;void&nbsp;handleMesosStatusUpdate&#8203;(java.lang.String&nbsp;taskId,
org.apache.mesos.Protos.TaskStatus&nbsp;status)</pre>
<div class="block">Handle status update from mesos master
1. It does nothing except logging under states:
- TASK_STAGING,
- TASK_STARTING,
- TASK_RUNNING,
<p>
2. It does severe logging under states:
- TASK_FINISHED
since heron-executor should be long live in normal production running.
This state can occur during DEBUG mode. And we would not consider it as failure.
<p>
3. It considers the task a failure and tries to restart it under states:
- TASK_FAILED
- TASK_KILLED
- TASK_LOST
- TASK_ERROR</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>taskId</code> - the taskId of container to handle</dd>
<dd><code>status</code> - the TasksStatus to handle</dd>
</dl>
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</ul>
<a id="handleMesosFailure(java.lang.String)">
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<h4>handleMesosFailure</h4>
<pre class="methodSignature">protected&nbsp;void&nbsp;handleMesosFailure&#8203;(java.lang.String&nbsp;taskId)</pre>
<div class="block">Restart a failed task unless exceeding the retires limitation</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>taskId</code> - the taskId of container to handle</dd>
</dl>
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<a id="scheduleNewTask(java.lang.String)">
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<h4>scheduleNewTask</h4>
<pre class="methodSignature">protected&nbsp;boolean&nbsp;scheduleNewTask&#8203;(java.lang.String&nbsp;taskId)</pre>
<div class="block">Schedule a new task</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>taskId</code> - the taskId of container to handle</dd>
</dl>
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</ul>
<a id="frameworkMessage(org.apache.mesos.SchedulerDriver,org.apache.mesos.Protos.ExecutorID,org.apache.mesos.Protos.SlaveID,byte[])">
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<pre class="methodSignature">public&nbsp;void&nbsp;frameworkMessage&#8203;(org.apache.mesos.SchedulerDriver&nbsp;schedulerDriver,
org.apache.mesos.Protos.ExecutorID&nbsp;executorID,
org.apache.mesos.Protos.SlaveID&nbsp;slaveID,
byte[]&nbsp;data)</pre>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code>frameworkMessage</code>&nbsp;in interface&nbsp;<code>org.apache.mesos.Scheduler</code></dd>
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<h4>disconnected</h4>
<pre class="methodSignature">public&nbsp;void&nbsp;disconnected&#8203;(org.apache.mesos.SchedulerDriver&nbsp;schedulerDriver)</pre>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code>disconnected</code>&nbsp;in interface&nbsp;<code>org.apache.mesos.Scheduler</code></dd>
</dl>
</li>
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<a id="slaveLost(org.apache.mesos.SchedulerDriver,org.apache.mesos.Protos.SlaveID)">
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<h4>slaveLost</h4>
<pre class="methodSignature">public&nbsp;void&nbsp;slaveLost&#8203;(org.apache.mesos.SchedulerDriver&nbsp;schedulerDriver,
org.apache.mesos.Protos.SlaveID&nbsp;slaveID)</pre>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code>slaveLost</code>&nbsp;in interface&nbsp;<code>org.apache.mesos.Scheduler</code></dd>
</dl>
</li>
</ul>
<a id="executorLost(org.apache.mesos.SchedulerDriver,org.apache.mesos.Protos.ExecutorID,org.apache.mesos.Protos.SlaveID,int)">
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<h4>executorLost</h4>
<pre class="methodSignature">public&nbsp;void&nbsp;executorLost&#8203;(org.apache.mesos.SchedulerDriver&nbsp;schedulerDriver,
org.apache.mesos.Protos.ExecutorID&nbsp;executorID,
org.apache.mesos.Protos.SlaveID&nbsp;slaveID,
int&nbsp;status)</pre>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code>executorLost</code>&nbsp;in interface&nbsp;<code>org.apache.mesos.Scheduler</code></dd>
</dl>
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</ul>
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<h4>error</h4>
<pre class="methodSignature">public&nbsp;void&nbsp;error&#8203;(org.apache.mesos.SchedulerDriver&nbsp;schedulerDriver,
java.lang.String&nbsp;message)</pre>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code>error</code>&nbsp;in interface&nbsp;<code>org.apache.mesos.Scheduler</code></dd>
</dl>
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</ul>
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<h4>generateLaunchableTasks</h4>
<pre class="methodSignature">protected&nbsp;java.util.List&lt;<a href="LaunchableTask.html" title="class in org.apache.heron.scheduler.mesos.framework">LaunchableTask</a>&gt;&nbsp;generateLaunchableTasks&#8203;(java.util.Map&lt;org.apache.mesos.Protos.Offer,&#8203;<a href="TaskResources.html" title="class in org.apache.heron.scheduler.mesos.framework">TaskResources</a>&gt;&nbsp;offerResources)</pre>
<div class="block">Generate launchable tasks basing on offer resources</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>offerResources</code> - Mapping from Protos.Offer to utils class TaskResources</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>list of launchable task</dd>
</dl>
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</ul>
<a id="launchTasks(java.util.List)">
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<h4>launchTasks</h4>
<pre class="methodSignature">protected&nbsp;void&nbsp;launchTasks&#8203;(java.util.List&lt;<a href="LaunchableTask.html" title="class in org.apache.heron.scheduler.mesos.framework">LaunchableTask</a>&gt;&nbsp;tasks)</pre>
<div class="block">Launch tasks</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>tasks</code> - list of LaunchableTask</dd>
</dl>
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</ul>
<a id="getContainersInfo()">
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<h4>getContainersInfo</h4>
<pre class="methodSignature">protected&nbsp;java.util.Map&lt;java.lang.Integer,&#8203;<a href="BaseContainer.html" title="class in org.apache.heron.scheduler.mesos.framework">BaseContainer</a>&gt;&nbsp;getContainersInfo()</pre>
<div class="block">Followings are used for unit test only</div>
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<h4>getTasksId</h4>
<pre class="methodSignature">protected&nbsp;java.util.Map&lt;java.lang.Integer,&#8203;java.lang.String&gt;&nbsp;getTasksId()</pre>
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<h4>getToScheduleTasks</h4>
<pre class="methodSignature">protected&nbsp;java.util.Queue&lt;java.lang.String&gt;&nbsp;getToScheduleTasks()</pre>
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<a id="getSchedulerDriver()">
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<h4>getSchedulerDriver</h4>
<pre class="methodSignature">protected&nbsp;org.apache.mesos.SchedulerDriver&nbsp;getSchedulerDriver()</pre>
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</ul>
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