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| <h2 title="Interface MemoryMetricsMXBean" class="title">Interface MemoryMetricsMXBean</h2> |
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| <dt>All Superinterfaces:</dt> |
| <dd><a href="../../../../org/apache/ignite/MemoryMetrics.html" title="interface in org.apache.ignite">MemoryMetrics</a></dd> |
| </dl> |
| <hr> |
| <br> |
| <pre><a href="../../../../org/apache/ignite/mxbean/MXBeanDescription.html" title="annotation in org.apache.ignite.mxbean">@MXBeanDescription</a>(<a href="../../../../org/apache/ignite/mxbean/MXBeanDescription.html#value()">value</a>="MBean that provides access to MemoryMetrics of a local Apache Ignite node.") |
| public interface <span class="strong">MemoryMetricsMXBean</span> |
| extends <a href="../../../../org/apache/ignite/MemoryMetrics.html" title="interface in org.apache.ignite">MemoryMetrics</a></pre> |
| <div class="block">This interface defines a JMX view on <a href="../../../../org/apache/ignite/MemoryMetrics.html" title="interface in org.apache.ignite"><code>MemoryMetrics</code></a>.</div> |
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| <h3>Method Summary</h3> |
| <table class="overviewSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation"> |
| <caption><span>Methods</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Method and Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/apache/ignite/mxbean/MemoryMetricsMXBean.html#disableMetrics()">disableMetrics</a></strong>()</code> |
| <div class="block">Disables memory metrics collection on an Apache Ignite node.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/apache/ignite/mxbean/MemoryMetricsMXBean.html#enableMetrics()">enableMetrics</a></strong>()</code> |
| <div class="block">Enables memory metrics collection on an Apache Ignite node.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>float</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/apache/ignite/mxbean/MemoryMetricsMXBean.html#getAllocationRate()">getAllocationRate</a></strong>()</code> |
| <div class="block">Gets pages allocation rate of a memory region.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>float</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/apache/ignite/mxbean/MemoryMetricsMXBean.html#getEvictionRate()">getEvictionRate</a></strong>()</code> |
| <div class="block">Gets eviction rate of a given memory region.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/apache/ignite/mxbean/MemoryMetricsMXBean.html#getInitialSize()">getInitialSize</a></strong>()</code> |
| <div class="block">Gets initial memory region size defined by its <a href="../../../../org/apache/ignite/configuration/MemoryPolicyConfiguration.html" title="class in org.apache.ignite.configuration"><code>MemoryPolicyConfiguration</code></a>.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>float</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/apache/ignite/mxbean/MemoryMetricsMXBean.html#getLargeEntriesPagesPercentage()">getLargeEntriesPagesPercentage</a></strong>()</code> |
| <div class="block">Gets percentage of pages that are fully occupied by large entries that go beyond page size.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/apache/ignite/mxbean/MemoryMetricsMXBean.html#getMaxSize()">getMaxSize</a></strong>()</code> |
| <div class="block">Maximum memory region size defined by its <a href="../../../../org/apache/ignite/configuration/MemoryPolicyConfiguration.html" title="class in org.apache.ignite.configuration"><code>MemoryPolicyConfiguration</code></a>.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/apache/ignite/mxbean/MemoryMetricsMXBean.html#getName()">getName</a></strong>()</code> |
| <div class="block">A name of a memory region the metrics are collected for.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>float</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/apache/ignite/mxbean/MemoryMetricsMXBean.html#getPagesFillFactor()">getPagesFillFactor</a></strong>()</code> |
| <div class="block">Gets the percentage of space that is still free and can be filled in.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/apache/ignite/mxbean/MemoryMetricsMXBean.html#getSwapFilePath()">getSwapFilePath</a></strong>()</code> |
| <div class="block">A path to the memory-mapped files the memory region defined by <a href="../../../../org/apache/ignite/configuration/MemoryPolicyConfiguration.html" title="class in org.apache.ignite.configuration"><code>MemoryPolicyConfiguration</code></a> will be |
| mapped to.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>long</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/apache/ignite/mxbean/MemoryMetricsMXBean.html#getTotalAllocatedPages()">getTotalAllocatedPages</a></strong>()</code> |
| <div class="block">Gets a total number of allocated pages in a memory region.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/apache/ignite/mxbean/MemoryMetricsMXBean.html#rateTimeInterval(int)">rateTimeInterval</a></strong>(int rateTimeInterval)</code> |
| <div class="block">Sets time interval for <a href="../../../../org/apache/ignite/mxbean/MemoryMetricsMXBean.html#getAllocationRate()"><code>getAllocationRate()</code></a> and <a href="../../../../org/apache/ignite/mxbean/MemoryMetricsMXBean.html#getEvictionRate()"><code>getEvictionRate()</code></a> monitoring purposes.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/apache/ignite/mxbean/MemoryMetricsMXBean.html#subIntervals(int)">subIntervals</a></strong>(int subInts)</code> |
| <div class="block">Sets a number of sub-intervals the whole <a href="../../../../org/apache/ignite/mxbean/MemoryMetricsMXBean.html#rateTimeInterval(int)"><code>rateTimeInterval(int)</code></a> will be split into to calculate |
| <a href="../../../../org/apache/ignite/mxbean/MemoryMetricsMXBean.html#getAllocationRate()"><code>getAllocationRate()</code></a> and <a href="../../../../org/apache/ignite/mxbean/MemoryMetricsMXBean.html#getEvictionRate()"><code>getEvictionRate()</code></a> rates (5 by default).</div> |
| </td> |
| </tr> |
| </table> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </div> |
| <div class="details"> |
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| <h3>Method Detail</h3> |
| <a name="getName()"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getName</h4> |
| <pre><a href="../../../../org/apache/ignite/mxbean/MXBeanDescription.html" title="annotation in org.apache.ignite.mxbean">@MXBeanDescription</a>(<a href="../../../../org/apache/ignite/mxbean/MXBeanDescription.html#value()">value</a>="A name of a memory region the metrics are collected for.") |
| <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> getName()</pre> |
| <div class="block">A name of a memory region the metrics are collected for.</div> |
| <dl> |
| <dt><strong>Specified by:</strong></dt> |
| <dd><code><a href="../../../../org/apache/ignite/MemoryMetrics.html#getName()">getName</a></code> in interface <code><a href="../../../../org/apache/ignite/MemoryMetrics.html" title="interface in org.apache.ignite">MemoryMetrics</a></code></dd> |
| <dt><span class="strong">Returns:</span></dt><dd>Name of the memory region.</dd></dl> |
| </li> |
| </ul> |
| <a name="getInitialSize()"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getInitialSize</h4> |
| <pre><a href="../../../../org/apache/ignite/mxbean/MXBeanDescription.html" title="annotation in org.apache.ignite.mxbean">@MXBeanDescription</a>(<a href="../../../../org/apache/ignite/mxbean/MXBeanDescription.html#value()">value</a>="Initial memory region size defined by its memory policy.") |
| int getInitialSize()</pre> |
| <div class="block">Gets initial memory region size defined by its <a href="../../../../org/apache/ignite/configuration/MemoryPolicyConfiguration.html" title="class in org.apache.ignite.configuration"><code>MemoryPolicyConfiguration</code></a>.</div> |
| <dl><dt><span class="strong">Returns:</span></dt><dd>Initial size in MB.</dd></dl> |
| </li> |
| </ul> |
| <a name="getMaxSize()"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getMaxSize</h4> |
| <pre><a href="../../../../org/apache/ignite/mxbean/MXBeanDescription.html" title="annotation in org.apache.ignite.mxbean">@MXBeanDescription</a>(<a href="../../../../org/apache/ignite/mxbean/MXBeanDescription.html#value()">value</a>="Maximum memory region size defined by its memory policy.") |
| int getMaxSize()</pre> |
| <div class="block">Maximum memory region size defined by its <a href="../../../../org/apache/ignite/configuration/MemoryPolicyConfiguration.html" title="class in org.apache.ignite.configuration"><code>MemoryPolicyConfiguration</code></a>.</div> |
| <dl><dt><span class="strong">Returns:</span></dt><dd>Maximum size in MB.</dd></dl> |
| </li> |
| </ul> |
| <a name="getSwapFilePath()"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getSwapFilePath</h4> |
| <pre><a href="../../../../org/apache/ignite/mxbean/MXBeanDescription.html" title="annotation in org.apache.ignite.mxbean">@MXBeanDescription</a>(<a href="../../../../org/apache/ignite/mxbean/MXBeanDescription.html#value()">value</a>="Path to the memory-mapped files.") |
| <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> getSwapFilePath()</pre> |
| <div class="block">A path to the memory-mapped files the memory region defined by <a href="../../../../org/apache/ignite/configuration/MemoryPolicyConfiguration.html" title="class in org.apache.ignite.configuration"><code>MemoryPolicyConfiguration</code></a> will be |
| mapped to.</div> |
| <dl><dt><span class="strong">Returns:</span></dt><dd>Path to the memory-mapped files.</dd></dl> |
| </li> |
| </ul> |
| <a name="getTotalAllocatedPages()"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getTotalAllocatedPages</h4> |
| <pre><a href="../../../../org/apache/ignite/mxbean/MXBeanDescription.html" title="annotation in org.apache.ignite.mxbean">@MXBeanDescription</a>(<a href="../../../../org/apache/ignite/mxbean/MXBeanDescription.html#value()">value</a>="Total number of allocated pages.") |
| long getTotalAllocatedPages()</pre> |
| <div class="block">Gets a total number of allocated pages in a memory region.</div> |
| <dl> |
| <dt><strong>Specified by:</strong></dt> |
| <dd><code><a href="../../../../org/apache/ignite/MemoryMetrics.html#getTotalAllocatedPages()">getTotalAllocatedPages</a></code> in interface <code><a href="../../../../org/apache/ignite/MemoryMetrics.html" title="interface in org.apache.ignite">MemoryMetrics</a></code></dd> |
| <dt><span class="strong">Returns:</span></dt><dd>Total number of allocated pages.</dd></dl> |
| </li> |
| </ul> |
| <a name="getAllocationRate()"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getAllocationRate</h4> |
| <pre><a href="../../../../org/apache/ignite/mxbean/MXBeanDescription.html" title="annotation in org.apache.ignite.mxbean">@MXBeanDescription</a>(<a href="../../../../org/apache/ignite/mxbean/MXBeanDescription.html#value()">value</a>="Allocation rate (pages per second) averaged across rateTimeInternal.") |
| float getAllocationRate()</pre> |
| <div class="block">Gets pages allocation rate of a memory region.</div> |
| <dl> |
| <dt><strong>Specified by:</strong></dt> |
| <dd><code><a href="../../../../org/apache/ignite/MemoryMetrics.html#getAllocationRate()">getAllocationRate</a></code> in interface <code><a href="../../../../org/apache/ignite/MemoryMetrics.html" title="interface in org.apache.ignite">MemoryMetrics</a></code></dd> |
| <dt><span class="strong">Returns:</span></dt><dd>Number of allocated pages per second.</dd></dl> |
| </li> |
| </ul> |
| <a name="getEvictionRate()"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getEvictionRate</h4> |
| <pre><a href="../../../../org/apache/ignite/mxbean/MXBeanDescription.html" title="annotation in org.apache.ignite.mxbean">@MXBeanDescription</a>(<a href="../../../../org/apache/ignite/mxbean/MXBeanDescription.html#value()">value</a>="Eviction rate (pages per second).") |
| float getEvictionRate()</pre> |
| <div class="block">Gets eviction rate of a given memory region.</div> |
| <dl> |
| <dt><strong>Specified by:</strong></dt> |
| <dd><code><a href="../../../../org/apache/ignite/MemoryMetrics.html#getEvictionRate()">getEvictionRate</a></code> in interface <code><a href="../../../../org/apache/ignite/MemoryMetrics.html" title="interface in org.apache.ignite">MemoryMetrics</a></code></dd> |
| <dt><span class="strong">Returns:</span></dt><dd>Number of evicted pages per second.</dd></dl> |
| </li> |
| </ul> |
| <a name="getLargeEntriesPagesPercentage()"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getLargeEntriesPagesPercentage</h4> |
| <pre><a href="../../../../org/apache/ignite/mxbean/MXBeanDescription.html" title="annotation in org.apache.ignite.mxbean">@MXBeanDescription</a>(<a href="../../../../org/apache/ignite/mxbean/MXBeanDescription.html#value()">value</a>="Percentage of pages that are fully occupied by large entries that go beyond page size.") |
| float getLargeEntriesPagesPercentage()</pre> |
| <div class="block">Gets percentage of pages that are fully occupied by large entries that go beyond page size. The large entities |
| are split into fragments in a way so that each fragment can fit into a single page.</div> |
| <dl> |
| <dt><strong>Specified by:</strong></dt> |
| <dd><code><a href="../../../../org/apache/ignite/MemoryMetrics.html#getLargeEntriesPagesPercentage()">getLargeEntriesPagesPercentage</a></code> in interface <code><a href="../../../../org/apache/ignite/MemoryMetrics.html" title="interface in org.apache.ignite">MemoryMetrics</a></code></dd> |
| <dt><span class="strong">Returns:</span></dt><dd>Percentage of pages fully occupied by large entities.</dd></dl> |
| </li> |
| </ul> |
| <a name="getPagesFillFactor()"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getPagesFillFactor</h4> |
| <pre><a href="../../../../org/apache/ignite/mxbean/MXBeanDescription.html" title="annotation in org.apache.ignite.mxbean">@MXBeanDescription</a>(<a href="../../../../org/apache/ignite/mxbean/MXBeanDescription.html#value()">value</a>="Percentage of space that is still free and can be filled in.") |
| float getPagesFillFactor()</pre> |
| <div class="block">Gets the percentage of space that is still free and can be filled in.</div> |
| <dl> |
| <dt><strong>Specified by:</strong></dt> |
| <dd><code><a href="../../../../org/apache/ignite/MemoryMetrics.html#getPagesFillFactor()">getPagesFillFactor</a></code> in interface <code><a href="../../../../org/apache/ignite/MemoryMetrics.html" title="interface in org.apache.ignite">MemoryMetrics</a></code></dd> |
| <dt><span class="strong">Returns:</span></dt><dd>The percentage of space that is still free and can be filled in.</dd></dl> |
| </li> |
| </ul> |
| <a name="enableMetrics()"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>enableMetrics</h4> |
| <pre><a href="../../../../org/apache/ignite/mxbean/MXBeanDescription.html" title="annotation in org.apache.ignite.mxbean">@MXBeanDescription</a>(<a href="../../../../org/apache/ignite/mxbean/MXBeanDescription.html#value()">value</a>="Enables memory metrics collection on an Apache Ignite node.") |
| void enableMetrics()</pre> |
| <div class="block">Enables memory metrics collection on an Apache Ignite node.</div> |
| </li> |
| </ul> |
| <a name="disableMetrics()"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>disableMetrics</h4> |
| <pre><a href="../../../../org/apache/ignite/mxbean/MXBeanDescription.html" title="annotation in org.apache.ignite.mxbean">@MXBeanDescription</a>(<a href="../../../../org/apache/ignite/mxbean/MXBeanDescription.html#value()">value</a>="Disables memory metrics collection on an Apache Ignite node.") |
| void disableMetrics()</pre> |
| <div class="block">Disables memory metrics collection on an Apache Ignite node.</div> |
| </li> |
| </ul> |
| <a name="rateTimeInterval(int)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>rateTimeInterval</h4> |
| <pre><a href="../../../../org/apache/ignite/mxbean/MXBeanDescription.html" title="annotation in org.apache.ignite.mxbean">@MXBeanDescription</a>(<a href="../../../../org/apache/ignite/mxbean/MXBeanDescription.html#value()">value</a>="Sets time interval for pages allocation and eviction monitoring purposes.") |
| <a href="../../../../org/apache/ignite/mxbean/MXBeanParametersNames.html" title="annotation in org.apache.ignite.mxbean">@MXBeanParametersNames</a>(<a href="../../../../org/apache/ignite/mxbean/MXBeanParametersNames.html#value()">value</a>="rateTimeInterval") |
| <a href="../../../../org/apache/ignite/mxbean/MXBeanParametersDescriptions.html" title="annotation in org.apache.ignite.mxbean">@MXBeanParametersDescriptions</a>(<a href="../../../../org/apache/ignite/mxbean/MXBeanParametersDescriptions.html#value()">value</a>="Time interval (in seconds) to set.") |
| void rateTimeInterval(int rateTimeInterval)</pre> |
| <div class="block">Sets time interval for <a href="../../../../org/apache/ignite/mxbean/MemoryMetricsMXBean.html#getAllocationRate()"><code>getAllocationRate()</code></a> and <a href="../../../../org/apache/ignite/mxbean/MemoryMetricsMXBean.html#getEvictionRate()"><code>getEvictionRate()</code></a> monitoring purposes. |
| <p> |
| For instance, after setting the interval to 60 seconds, subsequent calls to <a href="../../../../org/apache/ignite/mxbean/MemoryMetricsMXBean.html#getAllocationRate()"><code>getAllocationRate()</code></a> |
| will return average allocation rate (pages per second) for the last minute.</div> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>rateTimeInterval</code> - Time interval used for allocation and eviction rates calculations.</dd></dl> |
| </li> |
| </ul> |
| <a name="subIntervals(int)"> |
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| <h4>subIntervals</h4> |
| <pre><a href="../../../../org/apache/ignite/mxbean/MXBeanDescription.html" title="annotation in org.apache.ignite.mxbean">@MXBeanDescription</a>(<a href="../../../../org/apache/ignite/mxbean/MXBeanDescription.html#value()">value</a>="Sets a number of sub-intervals to calculate allocation and eviction rates metrics.") |
| <a href="../../../../org/apache/ignite/mxbean/MXBeanParametersNames.html" title="annotation in org.apache.ignite.mxbean">@MXBeanParametersNames</a>(<a href="../../../../org/apache/ignite/mxbean/MXBeanParametersNames.html#value()">value</a>="subInts") |
| <a href="../../../../org/apache/ignite/mxbean/MXBeanParametersDescriptions.html" title="annotation in org.apache.ignite.mxbean">@MXBeanParametersDescriptions</a>(<a href="../../../../org/apache/ignite/mxbean/MXBeanParametersDescriptions.html#value()">value</a>="Number of subintervals to set.") |
| void subIntervals(int subInts)</pre> |
| <div class="block">Sets a number of sub-intervals the whole <a href="../../../../org/apache/ignite/mxbean/MemoryMetricsMXBean.html#rateTimeInterval(int)"><code>rateTimeInterval(int)</code></a> will be split into to calculate |
| <a href="../../../../org/apache/ignite/mxbean/MemoryMetricsMXBean.html#getAllocationRate()"><code>getAllocationRate()</code></a> and <a href="../../../../org/apache/ignite/mxbean/MemoryMetricsMXBean.html#getEvictionRate()"><code>getEvictionRate()</code></a> rates (5 by default). |
| <p> |
| Setting it to a bigger value will result in more precise calculation and smaller drops of |
| <a href="../../../../org/apache/ignite/mxbean/MemoryMetricsMXBean.html#getAllocationRate()"><code>getAllocationRate()</code></a> metric when next sub-interval has to be recycled but introduces bigger |
| calculation overhead.</div> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>subInts</code> - A number of sub-intervals.</dd></dl> |
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