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| <h2 title="Class PackingUtils" class="title">Class PackingUtils</h2> |
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| <li>java.lang.Object</li> |
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| <li>org.apache.heron.packing.utils.PackingUtils</li> |
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| <pre>public final class <span class="typeNameLabel">PackingUtils</span> |
| extends java.lang.Object</pre> |
| <div class="block">Shared utilities for packing algorithms</div> |
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| <th class="colLast" scope="col">Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static class </code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="PackingUtils.ScalingDirection.html" title="enum in org.apache.heron.packing.utils">PackingUtils.ScalingDirection</a></span></code></th> |
| <td class="colLast"> </td> |
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| <th class="colFirst" scope="col">Modifier and Type</th> |
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| <th class="colLast" scope="col">Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static double</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#DEFAULT_CONTAINER_CPU_PADDING">DEFAULT_CONTAINER_CPU_PADDING</a></span></code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static <a href="../../common/basics/ByteAmount.html" title="class in org.apache.heron.common.basics">ByteAmount</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#DEFAULT_CONTAINER_DISK_PADDING">DEFAULT_CONTAINER_DISK_PADDING</a></span></code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static int</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#DEFAULT_CONTAINER_PADDING_PERCENTAGE">DEFAULT_CONTAINER_PADDING_PERCENTAGE</a></span></code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static <a href="../../common/basics/ByteAmount.html" title="class in org.apache.heron.common.basics">ByteAmount</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#DEFAULT_CONTAINER_RAM_PADDING">DEFAULT_CONTAINER_RAM_PADDING</a></span></code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static int</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#DEFAULT_MAX_NUM_INSTANCES_PER_CONTAINER">DEFAULT_MAX_NUM_INSTANCES_PER_CONTAINER</a></span></code></th> |
| <td class="colLast"> </td> |
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| </tr> |
| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code>static <a href="../../spi/packing/Resource.html" title="class in org.apache.heron.spi.packing">Resource</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#computeTotalResourceChange(org.apache.heron.api.generated.TopologyAPI.Topology,java.util.Map,org.apache.heron.spi.packing.Resource,org.apache.heron.packing.utils.PackingUtils.ScalingDirection)">computeTotalResourceChange</a></span>​(<a href="../../api/generated/TopologyAPI.Topology.html" title="class in org.apache.heron.api.generated">TopologyAPI.Topology</a> topology, |
| java.util.Map<java.lang.String,​java.lang.Integer> componentChanges, |
| <a href="../../spi/packing/Resource.html" title="class in org.apache.heron.spi.packing">Resource</a> defaultInstanceResources, |
| <a href="PackingUtils.ScalingDirection.html" title="enum in org.apache.heron.packing.utils">PackingUtils.ScalingDirection</a> scalingDirection)</code></th> |
| <td class="colLast"> |
| <div class="block">Identifies the resources reclaimed by the components that will be scaled down</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>static <a href="../../spi/packing/Resource.html" title="class in org.apache.heron.spi.packing">Resource</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#finalizePadding(org.apache.heron.spi.packing.Resource,org.apache.heron.spi.packing.Resource,int)">finalizePadding</a></span>​(<a href="../../spi/packing/Resource.html" title="class in org.apache.heron.spi.packing">Resource</a> containerResource, |
| <a href="../../spi/packing/Resource.html" title="class in org.apache.heron.spi.packing">Resource</a> padding, |
| int paddingPercentage)</code></th> |
| <td class="colLast"> |
| <div class="block">Finalize padding by taking Math.max(containerResource * paddingPercent, paddingValue)</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>static java.util.Map<java.lang.String,​<a href="../../spi/packing/Resource.html" title="class in org.apache.heron.spi.packing">Resource</a>></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getComponentResourceMap(java.util.Set,java.util.Map,java.util.Map,java.util.Map,org.apache.heron.spi.packing.Resource)">getComponentResourceMap</a></span>​(java.util.Set<java.lang.String> components, |
| java.util.Map<java.lang.String,​<a href="../../common/basics/ByteAmount.html" title="class in org.apache.heron.common.basics">ByteAmount</a>> componentRamMap, |
| java.util.Map<java.lang.String,​java.lang.Double> componentCpuMap, |
| java.util.Map<java.lang.String,​<a href="../../common/basics/ByteAmount.html" title="class in org.apache.heron.common.basics">ByteAmount</a>> componentDiskMap, |
| <a href="../../spi/packing/Resource.html" title="class in org.apache.heron.spi.packing">Resource</a> defaultInstanceResource)</code></th> |
| <td class="colLast"> |
| <div class="block">Compose the component resource map by reading from user configs or default</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>static java.util.Map<java.lang.String,​java.lang.Integer></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getComponentsToScale(java.util.Map,org.apache.heron.packing.utils.PackingUtils.ScalingDirection)">getComponentsToScale</a></span>​(java.util.Map<java.lang.String,​java.lang.Integer> componentChanges, |
| <a href="PackingUtils.ScalingDirection.html" title="enum in org.apache.heron.packing.utils">PackingUtils.ScalingDirection</a> scalingDirection)</code></th> |
| <td class="colLast"> |
| <div class="block">Identifies which components need to be scaled given specific scaling direction</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>static double</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#increaseBy(double,int)">increaseBy</a></span>​(double value, |
| int paddingPercentage)</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code>static long</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#increaseBy(long,int)">increaseBy</a></span>​(long value, |
| int paddingPercentage)</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| </table> |
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| <!-- --> |
| </a> |
| <h3>Methods inherited from class java.lang.Object</h3> |
| <code>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</code></li> |
| </ul> |
| </li> |
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| </section> |
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| <div class="details"> |
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| <!-- ============ FIELD DETAIL =========== --> |
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| <h3>Field Detail</h3> |
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| </a> |
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| <h4>DEFAULT_CONTAINER_PADDING_PERCENTAGE</h4> |
| <pre>public static final int DEFAULT_CONTAINER_PADDING_PERCENTAGE</pre> |
| <dl> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../constant-values.html#org.apache.heron.packing.utils.PackingUtils.DEFAULT_CONTAINER_PADDING_PERCENTAGE">Constant Field Values</a></dd> |
| </dl> |
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| </a> |
| <ul class="blockList"> |
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| <h4>DEFAULT_CONTAINER_RAM_PADDING</h4> |
| <pre>public static final <a href="../../common/basics/ByteAmount.html" title="class in org.apache.heron.common.basics">ByteAmount</a> DEFAULT_CONTAINER_RAM_PADDING</pre> |
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| </a> |
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| <h4>DEFAULT_CONTAINER_DISK_PADDING</h4> |
| <pre>public static final <a href="../../common/basics/ByteAmount.html" title="class in org.apache.heron.common.basics">ByteAmount</a> DEFAULT_CONTAINER_DISK_PADDING</pre> |
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| <h4>DEFAULT_CONTAINER_CPU_PADDING</h4> |
| <pre>public static final double DEFAULT_CONTAINER_CPU_PADDING</pre> |
| <dl> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../constant-values.html#org.apache.heron.packing.utils.PackingUtils.DEFAULT_CONTAINER_CPU_PADDING">Constant Field Values</a></dd> |
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| </a> |
| <ul class="blockListLast"> |
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| <h4>DEFAULT_MAX_NUM_INSTANCES_PER_CONTAINER</h4> |
| <pre>public static final int DEFAULT_MAX_NUM_INSTANCES_PER_CONTAINER</pre> |
| <dl> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../constant-values.html#org.apache.heron.packing.utils.PackingUtils.DEFAULT_MAX_NUM_INSTANCES_PER_CONTAINER">Constant Field Values</a></dd> |
| </dl> |
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| </section> |
| <!-- ============ METHOD DETAIL ========== --> |
| <section> |
| <ul class="blockList"> |
| <li class="blockList"><a id="method.detail"> |
| <!-- --> |
| </a> |
| <h3>Method Detail</h3> |
| <a id="getComponentResourceMap(java.util.Set,java.util.Map,java.util.Map,java.util.Map,org.apache.heron.spi.packing.Resource)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getComponentResourceMap</h4> |
| <pre class="methodSignature">public static java.util.Map<java.lang.String,​<a href="../../spi/packing/Resource.html" title="class in org.apache.heron.spi.packing">Resource</a>> getComponentResourceMap​(java.util.Set<java.lang.String> components, |
| java.util.Map<java.lang.String,​<a href="../../common/basics/ByteAmount.html" title="class in org.apache.heron.common.basics">ByteAmount</a>> componentRamMap, |
| java.util.Map<java.lang.String,​java.lang.Double> componentCpuMap, |
| java.util.Map<java.lang.String,​<a href="../../common/basics/ByteAmount.html" title="class in org.apache.heron.common.basics">ByteAmount</a>> componentDiskMap, |
| <a href="../../spi/packing/Resource.html" title="class in org.apache.heron.spi.packing">Resource</a> defaultInstanceResource)</pre> |
| <div class="block">Compose the component resource map by reading from user configs or default</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>components</code> - component names</dd> |
| <dd><code>componentRamMap</code> - user configured component ram map</dd> |
| <dd><code>componentCpuMap</code> - user configured component cpu map</dd> |
| <dd><code>componentDiskMap</code> - user configured component disk map</dd> |
| <dd><code>defaultInstanceResource</code> - default instance resources</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>component resource map</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="increaseBy(long,int)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>increaseBy</h4> |
| <pre class="methodSignature">public static long increaseBy​(long value, |
| int paddingPercentage)</pre> |
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| </ul> |
| <a id="increaseBy(double,int)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>increaseBy</h4> |
| <pre class="methodSignature">public static double increaseBy​(double value, |
| int paddingPercentage)</pre> |
| </li> |
| </ul> |
| <a id="finalizePadding(org.apache.heron.spi.packing.Resource,org.apache.heron.spi.packing.Resource,int)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>finalizePadding</h4> |
| <pre class="methodSignature">public static <a href="../../spi/packing/Resource.html" title="class in org.apache.heron.spi.packing">Resource</a> finalizePadding​(<a href="../../spi/packing/Resource.html" title="class in org.apache.heron.spi.packing">Resource</a> containerResource, |
| <a href="../../spi/packing/Resource.html" title="class in org.apache.heron.spi.packing">Resource</a> padding, |
| int paddingPercentage)</pre> |
| <div class="block">Finalize padding by taking Math.max(containerResource * paddingPercent, paddingValue)</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>containerResource</code> - max container resource</dd> |
| <dd><code>padding</code> - padding value</dd> |
| <dd><code>paddingPercentage</code> - padding percent</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>finalized padding amount</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="getComponentsToScale(java.util.Map,org.apache.heron.packing.utils.PackingUtils.ScalingDirection)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
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| <h4>getComponentsToScale</h4> |
| <pre class="methodSignature">public static java.util.Map<java.lang.String,​java.lang.Integer> getComponentsToScale​(java.util.Map<java.lang.String,​java.lang.Integer> componentChanges, |
| <a href="PackingUtils.ScalingDirection.html" title="enum in org.apache.heron.packing.utils">PackingUtils.ScalingDirection</a> scalingDirection)</pre> |
| <div class="block">Identifies which components need to be scaled given specific scaling direction</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Map < component name, scale factor ></dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="computeTotalResourceChange(org.apache.heron.api.generated.TopologyAPI.Topology,java.util.Map,org.apache.heron.spi.packing.Resource,org.apache.heron.packing.utils.PackingUtils.ScalingDirection)"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>computeTotalResourceChange</h4> |
| <pre class="methodSignature">public static <a href="../../spi/packing/Resource.html" title="class in org.apache.heron.spi.packing">Resource</a> computeTotalResourceChange​(<a href="../../api/generated/TopologyAPI.Topology.html" title="class in org.apache.heron.api.generated">TopologyAPI.Topology</a> topology, |
| java.util.Map<java.lang.String,​java.lang.Integer> componentChanges, |
| <a href="../../spi/packing/Resource.html" title="class in org.apache.heron.spi.packing">Resource</a> defaultInstanceResources, |
| <a href="PackingUtils.ScalingDirection.html" title="enum in org.apache.heron.packing.utils">PackingUtils.ScalingDirection</a> scalingDirection)</pre> |
| <div class="block">Identifies the resources reclaimed by the components that will be scaled down</div> |
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