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| <div class="subTitle">org.apache.ignite.spi.loadbalancing.adaptive</div> |
| <h2 title="Class AdaptiveProcessingTimeLoadProbe" class="title">Class AdaptiveProcessingTimeLoadProbe</h2> |
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| <li>org.apache.ignite.spi.loadbalancing.adaptive.AdaptiveProcessingTimeLoadProbe</li> |
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| <dt>All Implemented Interfaces:</dt> |
| <dd><a href="../../../../../../org/apache/ignite/spi/loadbalancing/adaptive/AdaptiveLoadProbe.html" title="interface in org.apache.ignite.spi.loadbalancing.adaptive">AdaptiveLoadProbe</a></dd> |
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| <pre>public class <span class="typeNameLabel">AdaptiveProcessingTimeLoadProbe</span> |
| 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> |
| implements <a href="../../../../../../org/apache/ignite/spi/loadbalancing/adaptive/AdaptiveLoadProbe.html" title="interface in org.apache.ignite.spi.loadbalancing.adaptive">AdaptiveLoadProbe</a></pre> |
| <div class="block">Implementation of node load probing based on total job processing time. |
| Based on <a href="../../../../../../org/apache/ignite/spi/loadbalancing/adaptive/AdaptiveProcessingTimeLoadProbe.html#setUseAverage-boolean-"><code>setUseAverage(boolean)</code></a> |
| parameter, this implementation will either use average job execution |
| time values or current (default is to use averages). The algorithm |
| returns a sum of job wait time and job execution time. |
| <p> |
| Below is an example of how CPU load probe would be configured in Ignite |
| Spring configuration file: |
| <pre name="code" class="xml"> |
| <property name="loadBalancingSpi"> |
| <bean class="org.apache.ignite.spi.loadBalancing.adaptive.GridAdaptiveLoadBalancingSpi"> |
| <property name="loadProbe"> |
| <bean class="org.apache.ignite.spi.loadBalancing.adaptive.GridAdaptiveProcessingTimeLoadProbe"> |
| <property name="useAverage" value="true"/> |
| </bean> |
| </property> |
| </bean> |
| </property> |
| </pre></div> |
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| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../org/apache/ignite/spi/loadbalancing/adaptive/AdaptiveProcessingTimeLoadProbe.html#AdaptiveProcessingTimeLoadProbe--">AdaptiveProcessingTimeLoadProbe</a></span>()</code> |
| <div class="block">Initializes execution time load probe to use |
| execution time average by default.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../org/apache/ignite/spi/loadbalancing/adaptive/AdaptiveProcessingTimeLoadProbe.html#AdaptiveProcessingTimeLoadProbe-boolean-">AdaptiveProcessingTimeLoadProbe</a></span>(boolean useAvg)</code> |
| <div class="block">Specifies whether to use average execution time vs. current.</div> |
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| <td class="colFirst"><code>double</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/ignite/spi/loadbalancing/adaptive/AdaptiveProcessingTimeLoadProbe.html#getLoad-org.apache.ignite.cluster.ClusterNode-int-">getLoad</a></span>(<a href="../../../../../../org/apache/ignite/cluster/ClusterNode.html" title="interface in org.apache.ignite.cluster">ClusterNode</a> node, |
| int jobsSentSinceLastUpdate)</code> |
| <div class="block">Calculates load value for a given node.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/ignite/spi/loadbalancing/adaptive/AdaptiveProcessingTimeLoadProbe.html#isUseAverage--">isUseAverage</a></span>()</code> |
| <div class="block">Gets flag indicating whether to use average execution time vs. current.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/ignite/spi/loadbalancing/adaptive/AdaptiveProcessingTimeLoadProbe.html#setUseAverage-boolean-">setUseAverage</a></span>(boolean useAvg)</code> |
| <div class="block">Sets flag indicating whether to use average execution time vs. current.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code><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/ignite/spi/loadbalancing/adaptive/AdaptiveProcessingTimeLoadProbe.html#toString--">toString</a></span>()</code></td> |
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| <h4>AdaptiveProcessingTimeLoadProbe</h4> |
| <pre>public AdaptiveProcessingTimeLoadProbe()</pre> |
| <div class="block">Initializes execution time load probe to use |
| execution time average by default.</div> |
| </li> |
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| <a name="AdaptiveProcessingTimeLoadProbe-boolean-"> |
| <!-- --> |
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| <h4>AdaptiveProcessingTimeLoadProbe</h4> |
| <pre>public AdaptiveProcessingTimeLoadProbe(boolean useAvg)</pre> |
| <div class="block">Specifies whether to use average execution time vs. current.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>useAvg</code> - Flag indicating whether to use average execution time vs. current.</dd> |
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| <pre>public boolean isUseAverage()</pre> |
| <div class="block">Gets flag indicating whether to use average execution time vs. current.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Flag indicating whether to use average execution time vs. current.</dd> |
| </dl> |
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| </ul> |
| <a name="setUseAverage-boolean-"> |
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| <h4>setUseAverage</h4> |
| <pre>public void setUseAverage(boolean useAvg)</pre> |
| <div class="block">Sets flag indicating whether to use average execution time vs. current.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>useAvg</code> - Flag indicating whether to use average execution time vs. current.</dd> |
| </dl> |
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| <h4>getLoad</h4> |
| <pre>public double getLoad(<a href="../../../../../../org/apache/ignite/cluster/ClusterNode.html" title="interface in org.apache.ignite.cluster">ClusterNode</a> node, |
| int jobsSentSinceLastUpdate)</pre> |
| <div class="block">Calculates load value for a given node. Specific implementations would |
| usually take into account some of the values provided by |
| <a href="../../../../../../org/apache/ignite/cluster/ClusterNode.html#metrics--"><code>ClusterNode.metrics()</code></a> method. For example, load can be calculated |
| based on job execution time or number of active jobs, or CPU/Heap utilization. |
| <p> |
| Note that if this method returns a value of <code>0</code>, |
| then implementation will assume that load value is simply not available and |
| will try to calculate an average of load values for other nodes. If such |
| average cannot be obtained (all node load values are <code>0</code>), then a value |
| of <code>1</code> will be used.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../../org/apache/ignite/spi/loadbalancing/adaptive/AdaptiveLoadProbe.html#getLoad-org.apache.ignite.cluster.ClusterNode-int-">getLoad</a></code> in interface <code><a href="../../../../../../org/apache/ignite/spi/loadbalancing/adaptive/AdaptiveLoadProbe.html" title="interface in org.apache.ignite.spi.loadbalancing.adaptive">AdaptiveLoadProbe</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>node</code> - Grid node to calculate load for.</dd> |
| <dd><code>jobsSentSinceLastUpdate</code> - Number of jobs sent to this node since |
| last metrics update. This parameter may be useful when |
| implementation takes into account the current job count on a node.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Non-negative load value for the node (zero and above).</dd> |
| </dl> |
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| <pre>public <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> toString()</pre> |
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| <p class="legalCopy"><small><table width="100%" border="0" cellspacing=0 cellpadding=0 style="padding: 5px"> <tr> <td> <table style="padding-left: 0; margin: 0"> <tbody style="padding: 0; margin: 0"> <tr style="padding: 0; margin: 0"> <td> <a target=_blank href="https://ignite.apache.org"><nobr>2021 Copyright © Apache Software Foundation</nobr></a> </td> </tr> </tbody> </table> </td> <td width="100%" align="right" valign="center"> <a href="https://twitter.com/ApacheIgnite" class="twitter-follow-button" data-show-count="false" data-size="large">Follow @ApacheIgnite</a> </td> </tr> <tr> <td colspan="2" valign="top" align="left"> <table style="padding-left: 0; margin: 0"> <tbody style="padding: 0; margin: 0"> <tr style="padding: 0; margin: 0"> <td> <b>Ignite Database and Caching Platform</b> </td> <td>: ver. <strong>2.11.1</strong> </td> </tr> <tr style="padding: 0; margin: 0"> <td> <b>Release Date</b> </td> <td>: December 20 2021 </td> </tr> </tbody> </table> </td> </tr> </table></small></p> |
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