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| <div class="subTitle">org.apache.storm.container.cgroup</div> |
| <h2 title="Class CgroupManager" class="title">Class CgroupManager</h2> |
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| <ul class="inheritance"> |
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| <li> |
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| <li>org.apache.storm.container.cgroup.CgroupManager</li> |
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| <pre>public class <span class="typeNameLabel">CgroupManager</span> |
| extends <a href="../../../../../org/apache/storm/container/DefaultResourceIsolationManager.html" title="class in org.apache.storm.container">DefaultResourceIsolationManager</a></pre> |
| <div class="block"><p>Class that implements ResourceIsolationInterface that manages cgroups.</p></div> |
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| <code><a href="../../../../../org/apache/storm/container/DefaultResourceIsolationManager.html#conf">conf</a>, <a href="../../../../../org/apache/storm/container/DefaultResourceIsolationManager.html#runAsUser">runAsUser</a></code></li> |
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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/storm/container/cgroup/CgroupManager.html#CgroupManager--">CgroupManager</a></span>()</code> </td> |
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| <th class="colFirst" scope="col">Modifier and Type</th> |
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| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/storm/container/cgroup/CgroupManager.html#cleanup-java.lang.String-java.lang.String-int-">cleanup</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> user, |
| <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> workerId, |
| int port)</code> |
| <div class="block">This function will be called when the worker needs to shutdown.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>protected <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util">Set</a><<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Long.html?is-external=true" title="class or interface in java.lang">Long</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/storm/container/cgroup/CgroupManager.html#getAllPids-java.lang.String-">getAllPids</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> workerId)</code> |
| <div class="block">Get all of the pids that are a part of this container.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<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>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/storm/container/cgroup/CgroupManager.html#getLaunchCommand-java.lang.String-java.util.List-">getLaunchCommand</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> workerId, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<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>> existingCommand)</code> |
| <div class="block">To compose launch command based on workerId and existing command.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/storm/container/cgroup/CgroupManager.html#getMemoryUsage-java.lang.String-java.lang.String-int-">getMemoryUsage</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> user, |
| <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> workerId, |
| int port)</code> |
| <div class="block">Get the current memory usage of the a given worker.</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/storm/container/cgroup/CgroupManager.html#getSystemFreeMemoryMb--">getSystemFreeMemoryMb</a></span>()</code> |
| <div class="block">Get the amount of free memory in MB.</div> |
| </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code>protected static boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/storm/container/cgroup/CgroupManager.html#isOnLinux--">isOnLinux</a></span>()</code> |
| <div class="block">Extracting out to mock it for tests.</div> |
| </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/storm/container/cgroup/CgroupManager.html#isResourceManaged--">isResourceManaged</a></span>()</code> |
| <div class="block">This class doesn’t really manage resources.</div> |
| </td> |
| </tr> |
| <tr id="i7" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/storm/container/cgroup/CgroupManager.html#launchWorkerProcess-java.lang.String-java.lang.String-java.util.Map-int-java.lang.String-java.util.List-java.util.Map-java.lang.String-org.apache.storm.daemon.supervisor.ExitCodeCallback-java.io.File-">launchWorkerProcess</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> user, |
| <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> topologyId, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a><<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>,<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>> topoConf, |
| int port, |
| <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> workerId, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<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>> command, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a><<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>,<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>> env, |
| <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> logPrefix, |
| <a href="../../../../../org/apache/storm/daemon/supervisor/ExitCodeCallback.html" title="interface in org.apache.storm.daemon.supervisor">ExitCodeCallback</a> processExitCallback, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/io/File.html?is-external=true" title="class or interface in java.io">File</a> targetDir)</code> |
| <div class="block">After reserving resources for the worker (i.e.</div> |
| </td> |
| </tr> |
| <tr id="i8" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/storm/container/cgroup/CgroupManager.html#prepare-java.util.Map-">prepare</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a><<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>,<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>> conf)</code> |
| <div class="block">initialize data structures.</div> |
| </td> |
| </tr> |
| <tr id="i9" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/storm/container/cgroup/CgroupManager.html#reserveResourcesForWorker-java.lang.String-java.lang.Integer-java.lang.Integer-java.lang.String-">reserveResourcesForWorker</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> workerId, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a> totalMem, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a> cpuNum, |
| <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> numaId)</code> |
| <div class="block">This function should be used prior to starting the worker to reserve resources for the worker.</div> |
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| <code><a href="../../../../../org/apache/storm/container/DefaultResourceIsolationManager.html#areAllProcessesDead-java.lang.String-java.lang.String-">areAllProcessesDead</a>, <a href="../../../../../org/apache/storm/container/DefaultResourceIsolationManager.html#forceKill-java.lang.String-java.lang.String-">forceKill</a>, <a href="../../../../../org/apache/storm/container/DefaultResourceIsolationManager.html#kill-java.lang.String-java.lang.String-">kill</a>, <a href="../../../../../org/apache/storm/container/DefaultResourceIsolationManager.html#runProfilingCommand-java.lang.String-java.lang.String-java.util.List-java.util.Map-java.lang.String-java.io.File-">runProfilingCommand</a></code></li> |
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| <h4>CgroupManager</h4> |
| <pre>public CgroupManager()</pre> |
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| <h4>prepare</h4> |
| <pre>public void prepare(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a><<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>,<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>> conf) |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <div class="block"><p>initialize data structures.</p></div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../org/apache/storm/container/ResourceIsolationInterface.html#prepare-java.util.Map-">prepare</a></code> in interface <code><a href="../../../../../org/apache/storm/container/ResourceIsolationInterface.html" title="interface in org.apache.storm.container">ResourceIsolationInterface</a></code></dd> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="../../../../../org/apache/storm/container/DefaultResourceIsolationManager.html#prepare-java.util.Map-">prepare</a></code> in class <code><a href="../../../../../org/apache/storm/container/DefaultResourceIsolationManager.html" title="class in org.apache.storm.container">DefaultResourceIsolationManager</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>conf</code> - storm confs</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code> - on any error.</dd> |
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| <h4>reserveResourcesForWorker</h4> |
| <pre>public void reserveResourcesForWorker(<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> workerId, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a> totalMem, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a> cpuNum, |
| <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> numaId) |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/SecurityException.html?is-external=true" title="class or interface in java.lang">SecurityException</a></pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../org/apache/storm/container/ResourceIsolationInterface.html#reserveResourcesForWorker-java.lang.String-java.lang.Integer-java.lang.Integer-java.lang.String-">ResourceIsolationInterface</a></code></span></div> |
| <div class="block"><p>This function should be used prior to starting the worker to reserve resources for the worker.</p></div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../org/apache/storm/container/ResourceIsolationInterface.html#reserveResourcesForWorker-java.lang.String-java.lang.Integer-java.lang.Integer-java.lang.String-">reserveResourcesForWorker</a></code> in interface <code><a href="../../../../../org/apache/storm/container/ResourceIsolationInterface.html" title="interface in org.apache.storm.container">ResourceIsolationInterface</a></code></dd> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="../../../../../org/apache/storm/container/DefaultResourceIsolationManager.html#reserveResourcesForWorker-java.lang.String-java.lang.Integer-java.lang.Integer-java.lang.String-">reserveResourcesForWorker</a></code> in class <code><a href="../../../../../org/apache/storm/container/DefaultResourceIsolationManager.html" title="class in org.apache.storm.container">DefaultResourceIsolationManager</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>workerId</code> - worker id of the worker to start</dd> |
| <dd><code>totalMem</code> - the amount of memory for the worker or null if not enforced</dd> |
| <dd><code>cpuNum</code> - the amount of cpu for the worker or null if not enforced</dd> |
| <dd><code>numaId</code> - NUMA zone if applicable the worker should be bound to</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/SecurityException.html?is-external=true" title="class or interface in java.lang">SecurityException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="cleanup-java.lang.String-java.lang.String-int-"> |
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| </a> |
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| <h4>cleanup</h4> |
| <pre>public void cleanup(<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> user, |
| <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> workerId, |
| int port) |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../org/apache/storm/container/ResourceIsolationInterface.html#cleanup-java.lang.String-java.lang.String-int-">ResourceIsolationInterface</a></code></span></div> |
| <div class="block"><p>This function will be called when the worker needs to shutdown. This function should include logic to clean up after a worker is shutdown.</p></div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../org/apache/storm/container/ResourceIsolationInterface.html#cleanup-java.lang.String-java.lang.String-int-">cleanup</a></code> in interface <code><a href="../../../../../org/apache/storm/container/ResourceIsolationInterface.html" title="interface in org.apache.storm.container">ResourceIsolationInterface</a></code></dd> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="../../../../../org/apache/storm/container/DefaultResourceIsolationManager.html#cleanup-java.lang.String-java.lang.String-int-">cleanup</a></code> in class <code><a href="../../../../../org/apache/storm/container/DefaultResourceIsolationManager.html" title="class in org.apache.storm.container">DefaultResourceIsolationManager</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>user</code> - the user of the worker</dd> |
| <dd><code>workerId</code> - worker id to shutdown and clean up after</dd> |
| <dd><code>port</code> - the port of the worker</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="isOnLinux--"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>isOnLinux</h4> |
| <pre>protected static boolean isOnLinux()</pre> |
| <div class="block"><p>Extracting out to mock it for tests.</p></div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>true if on Linux.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="launchWorkerProcess-java.lang.String-java.lang.String-java.util.Map-int-java.lang.String-java.util.List-java.util.Map-java.lang.String-org.apache.storm.daemon.supervisor.ExitCodeCallback-java.io.File-"> |
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| <h4>launchWorkerProcess</h4> |
| <pre>public void launchWorkerProcess(<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> user, |
| <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> topologyId, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a><<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>,<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>> topoConf, |
| int port, |
| <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> workerId, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<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>> command, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a><<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>,<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>> env, |
| <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> logPrefix, |
| <a href="../../../../../org/apache/storm/daemon/supervisor/ExitCodeCallback.html" title="interface in org.apache.storm.daemon.supervisor">ExitCodeCallback</a> processExitCallback, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/io/File.html?is-external=true" title="class or interface in java.io">File</a> targetDir) |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../org/apache/storm/container/ResourceIsolationInterface.html#launchWorkerProcess-java.lang.String-java.lang.String-java.util.Map-int-java.lang.String-java.util.List-java.util.Map-java.lang.String-org.apache.storm.daemon.supervisor.ExitCodeCallback-java.io.File-">ResourceIsolationInterface</a></code></span></div> |
| <div class="block"><p>After reserving resources for the worker (i.e. calling reserveResourcesForWorker), this function can be used to launch worker process.</p></div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../org/apache/storm/container/ResourceIsolationInterface.html#launchWorkerProcess-java.lang.String-java.lang.String-java.util.Map-int-java.lang.String-java.util.List-java.util.Map-java.lang.String-org.apache.storm.daemon.supervisor.ExitCodeCallback-java.io.File-">launchWorkerProcess</a></code> in interface <code><a href="../../../../../org/apache/storm/container/ResourceIsolationInterface.html" title="interface in org.apache.storm.container">ResourceIsolationInterface</a></code></dd> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="../../../../../org/apache/storm/container/DefaultResourceIsolationManager.html#launchWorkerProcess-java.lang.String-java.lang.String-java.util.Map-int-java.lang.String-java.util.List-java.util.Map-java.lang.String-org.apache.storm.daemon.supervisor.ExitCodeCallback-java.io.File-">launchWorkerProcess</a></code> in class <code><a href="../../../../../org/apache/storm/container/DefaultResourceIsolationManager.html" title="class in org.apache.storm.container">DefaultResourceIsolationManager</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>user</code> - the user who runs the command as</dd> |
| <dd><code>topologyId</code> - the Id of the topology</dd> |
| <dd><code>topoConf</code> - the topology configuration</dd> |
| <dd><code>port</code> - the port where the worker is on</dd> |
| <dd><code>workerId</code> - the Id of the worker</dd> |
| <dd><code>command</code> - the command to run</dd> |
| <dd><code>env</code> - the environment to run the command</dd> |
| <dd><code>logPrefix</code> - the prefix to include in the logs</dd> |
| <dd><code>processExitCallback</code> - a callback for when the process exits</dd> |
| <dd><code>targetDir</code> - the working directory to run the command in</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code> - on I/O exception</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getLaunchCommand-java.lang.String-java.util.List-"> |
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| </a> |
| <ul class="blockList"> |
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| <h4>getLaunchCommand</h4> |
| <pre>public <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<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>> getLaunchCommand(<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> workerId, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<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>> existingCommand)</pre> |
| <div class="block"><p>To compose launch command based on workerId and existing command.</p></div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>workerId</code> - the worker id</dd> |
| <dd><code>existingCommand</code> - the current command to run that may need to be modified</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>new commandline with necessary additions to launch worker</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getAllPids-java.lang.String-"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getAllPids</h4> |
| <pre>protected <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util">Set</a><<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Long.html?is-external=true" title="class or interface in java.lang">Long</a>> getAllPids(<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> workerId) |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <div class="block"><p>Get all of the pids that are a part of this container.</p></div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="../../../../../org/apache/storm/container/DefaultResourceIsolationManager.html#getAllPids-java.lang.String-">getAllPids</a></code> in class <code><a href="../../../../../org/apache/storm/container/DefaultResourceIsolationManager.html" title="class in org.apache.storm.container">DefaultResourceIsolationManager</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>workerId</code> - the worker id</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>all of the pids that are a part of this container</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getMemoryUsage-java.lang.String-java.lang.String-int-"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getMemoryUsage</h4> |
| <pre>public long getMemoryUsage(<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> user, |
| <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> workerId, |
| int port) |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../org/apache/storm/container/ResourceIsolationInterface.html#getMemoryUsage-java.lang.String-java.lang.String-int-">ResourceIsolationInterface</a></code></span></div> |
| <div class="block"><p>Get the current memory usage of the a given worker.</p></div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../org/apache/storm/container/ResourceIsolationInterface.html#getMemoryUsage-java.lang.String-java.lang.String-int-">getMemoryUsage</a></code> in interface <code><a href="../../../../../org/apache/storm/container/ResourceIsolationInterface.html" title="interface in org.apache.storm.container">ResourceIsolationInterface</a></code></dd> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="../../../../../org/apache/storm/container/DefaultResourceIsolationManager.html#getMemoryUsage-java.lang.String-java.lang.String-int-">getMemoryUsage</a></code> in class <code><a href="../../../../../org/apache/storm/container/DefaultResourceIsolationManager.html" title="class in org.apache.storm.container">DefaultResourceIsolationManager</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>user</code> - the user that the worker is running as</dd> |
| <dd><code>workerId</code> - the id of the worker</dd> |
| <dd><code>port</code> - the port of the worker</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the amount of memory the worker is using in bytes or -1 if not supported</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code> - on I/O exception</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getSystemFreeMemoryMb--"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getSystemFreeMemoryMb</h4> |
| <pre>public long getSystemFreeMemoryMb() |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../org/apache/storm/container/ResourceIsolationInterface.html#getSystemFreeMemoryMb--">ResourceIsolationInterface</a></code></span></div> |
| <div class="block"><p>Get the amount of free memory in MB. This might not be the entire box, it might be within a parent resource group.</p></div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../org/apache/storm/container/ResourceIsolationInterface.html#getSystemFreeMemoryMb--">getSystemFreeMemoryMb</a></code> in interface <code><a href="../../../../../org/apache/storm/container/ResourceIsolationInterface.html" title="interface in org.apache.storm.container">ResourceIsolationInterface</a></code></dd> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="../../../../../org/apache/storm/container/DefaultResourceIsolationManager.html#getSystemFreeMemoryMb--">getSystemFreeMemoryMb</a></code> in class <code><a href="../../../../../org/apache/storm/container/DefaultResourceIsolationManager.html" title="class in org.apache.storm.container">DefaultResourceIsolationManager</a></code></dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>The amount of memory in MB that are free on the system.</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code> - on I/O exception</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="isResourceManaged--"> |
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| </a> |
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| <li class="blockList"> |
| <h4>isResourceManaged</h4> |
| <pre>public boolean isResourceManaged()</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from class: <code><a href="../../../../../org/apache/storm/container/DefaultResourceIsolationManager.html#isResourceManaged--">DefaultResourceIsolationManager</a></code></span></div> |
| <div class="block"><p>This class doesn’t really manage resources.</p></div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../org/apache/storm/container/ResourceIsolationInterface.html#isResourceManaged--">isResourceManaged</a></code> in interface <code><a href="../../../../../org/apache/storm/container/ResourceIsolationInterface.html" title="interface in org.apache.storm.container">ResourceIsolationInterface</a></code></dd> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="../../../../../org/apache/storm/container/DefaultResourceIsolationManager.html#isResourceManaged--">isResourceManaged</a></code> in class <code><a href="../../../../../org/apache/storm/container/DefaultResourceIsolationManager.html" title="class in org.apache.storm.container">DefaultResourceIsolationManager</a></code></dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>false</dd> |
| </dl> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </div> |
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