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| <div class="sub-title"><span class="module-label-in-type">Module</span> <a href="../../../../module-summary.html">jdk.management</a></div> |
| <div class="sub-title"><span class="package-label-in-type">Package</span> <a href="package-summary.html">com.ibm.virtualization.management</a></div> |
| <h1 title="Interface GuestOSMXBean" class="title">Interface GuestOSMXBean</h1> |
| </div> |
| <section class="description"> |
| <dl class="notes"> |
| <dt>All Superinterfaces:</dt> |
| <dd><code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.management/java/lang/management/PlatformManagedObject.html" title="class or interface in java.lang.management" class="external-link" target="_blank">PlatformManagedObject</a></code></dd> |
| </dl> |
| <dl class="notes"> |
| <dt>All Known Implementing Classes:</dt> |
| <dd><code><a href="internal/GuestOS.html" title="class in com.ibm.virtualization.management.internal">GuestOS</a></code></dd> |
| </dl> |
| <hr> |
| <div class="type-signature"><span class="modifiers">public interface </span><span class="element-name type-name-label">GuestOSMXBean</span><span class="extends-implements"> |
| extends <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.management/java/lang/management/PlatformManagedObject.html" title="class or interface in java.lang.management" class="external-link" target="_blank">PlatformManagedObject</a></span></div> |
| <div class="block">This interface provides Processor and Memory usage statistics of the |
| Guest (Virtual Machine(VM)/Logical Partition(LPAR)) as seen by the Hypervisor Host. |
| <b>Where there are multiple levels of Hypervisor, only the top level Hypervisor information is returned.</b> |
| These are the supported Hypervisor and Guest Operating System combinations: |
| <ol> |
| <li>Windows and Linux on VMWare ESXi. |
| <ul> |
| <li><a href="http://www.vmware.com/support/developer/guest-sdk" target="_blank">VMware GuestSDK</a> |
| (Generally packaged with VMWare tools) must be installed in the Guest Operating System. |
| </ul> |
| <li>AIX and Linux on PowerVM. |
| <li>Linux on PowerKVM. |
| <ul> |
| <li>Guest Operating System memory usage statistics are not available on Linux for PowerKVM. |
| </ul> |
| <li>z/OS and Linux on z/VM. |
| <ul> |
| <li>hypfs filesystem (s390_hypfs) must be mounted on Linux on z/VM. The userid that runs the Java |
| process must have read and write access. |
| </ul> |
| </ol> |
| <br> |
| <table border="1"> |
| <caption><b>Usage example for the <a href="GuestOSMXBean.html" title="interface in com.ibm.virtualization.management"><code>GuestOSMXBean</code></a></b></caption> |
| <tr> <td> |
| <pre> |
| <code> |
| ... |
| try { |
| mxbeanName = new ObjectName("com.ibm.virtualization.management:type=GuestOS"); |
| } catch (MalformedObjectNameException e) { |
| // Exception Handling |
| } |
| try { |
| MBeanServer mbeanServer = ManagementFactory.getPlatformMBeanServer(); |
| if (true != mbeanServer.isRegistered(mxbeanName)) { |
| // GuestOSMXBean not registered |
| } |
| GuestOSMXBean guestBean = JMX.newMXBeanProxy(mbeanServer, mxbeanName, GuestOSMXBean.class); |
| } catch (Exception e) { |
| // Exception Handling |
| } |
| </code> |
| </pre></td></tr></table></div> |
| <dl class="notes"> |
| <dt>Since:</dt> |
| <dd>1.7.1</dd> |
| </dl> |
| </section> |
| <section class="summary"> |
| <ul class="summary-list"> |
| <!-- ========== METHOD SUMMARY =========== --> |
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| <section class="method-summary" id="method.summary"> |
| <h2>Method Summary</h2> |
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| <div class="summary-table three-column-summary" aria-labelledby="method-summary-table-tab0"> |
| <div class="table-header col-first">Modifier and Type</div> |
| <div class="table-header col-second">Method</div> |
| <div class="table-header col-last">Description</div> |
| <div class="col-first even-row-color method-summary-table-tab2 method-summary-table method-summary-table-tab3"><code><a href="GuestOSMemoryUsage.html" title="class in com.ibm.virtualization.management">GuestOSMemoryUsage</a></code></div> |
| <div class="col-second even-row-color method-summary-table-tab2 method-summary-table method-summary-table-tab3"><code><span class="member-name-link"><a href="#retrieveMemoryUsage()">retrieveMemoryUsage</a></span>()</code></div> |
| <div class="col-last even-row-color method-summary-table-tab2 method-summary-table method-summary-table-tab3"> |
| <div class="block">Function instantiates a <a href="GuestOSMemoryUsage.html" title="class in com.ibm.virtualization.management"><code>GuestOSMemoryUsage</code></a> object and populates it with the |
| current snapshot of Memory Usage statistics of the Guest as seen by the Hypervisor.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table-tab2 method-summary-table method-summary-table-tab3"><code><a href="GuestOSMemoryUsage.html" title="class in com.ibm.virtualization.management">GuestOSMemoryUsage</a></code></div> |
| <div class="col-second odd-row-color method-summary-table-tab2 method-summary-table method-summary-table-tab3"><code><span class="member-name-link"><a href="#retrieveMemoryUsage(com.ibm.virtualization.management.GuestOSMemoryUsage)">retrieveMemoryUsage</a></span>​(<a href="GuestOSMemoryUsage.html" title="class in com.ibm.virtualization.management">GuestOSMemoryUsage</a> gmUsage)</code></div> |
| <div class="col-last odd-row-color method-summary-table-tab2 method-summary-table method-summary-table-tab3"> |
| <div class="block">Snapshot of the Guest Memory usage statistics as seen by the Hypervisor, returned as |
| a <a href="GuestOSMemoryUsage.html" title="class in com.ibm.virtualization.management"><code>GuestOSMemoryUsage</code></a> object.</div> |
| </div> |
| <div class="col-first even-row-color method-summary-table-tab2 method-summary-table method-summary-table-tab3"><code><a href="GuestOSProcessorUsage.html" title="class in com.ibm.virtualization.management">GuestOSProcessorUsage</a></code></div> |
| <div class="col-second even-row-color method-summary-table-tab2 method-summary-table method-summary-table-tab3"><code><span class="member-name-link"><a href="#retrieveProcessorUsage()">retrieveProcessorUsage</a></span>()</code></div> |
| <div class="col-last even-row-color method-summary-table-tab2 method-summary-table method-summary-table-tab3"> |
| <div class="block">Function instantiates a <a href="GuestOSProcessorUsage.html" title="class in com.ibm.virtualization.management"><code>GuestOSProcessorUsage</code></a> object and populates it with the |
| current snapshot of Processor Usage statistics of the Guest as seen by the Hypervisor.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table-tab2 method-summary-table method-summary-table-tab3"><code><a href="GuestOSProcessorUsage.html" title="class in com.ibm.virtualization.management">GuestOSProcessorUsage</a></code></div> |
| <div class="col-second odd-row-color method-summary-table-tab2 method-summary-table method-summary-table-tab3"><code><span class="member-name-link"><a href="#retrieveProcessorUsage(com.ibm.virtualization.management.GuestOSProcessorUsage)">retrieveProcessorUsage</a></span>​(<a href="GuestOSProcessorUsage.html" title="class in com.ibm.virtualization.management">GuestOSProcessorUsage</a> gpUsage)</code></div> |
| <div class="col-last odd-row-color method-summary-table-tab2 method-summary-table method-summary-table-tab3"> |
| <div class="block">Snapshot of the Guest Processor usage statistics as seen by the Hypervisor, returned as a |
| <a href="GuestOSProcessorUsage.html" title="class in com.ibm.virtualization.management"><code>GuestOSProcessorUsage</code></a> object.</div> |
| </div> |
| </div> |
| </div> |
| </div> |
| <div class="inherited-list"> |
| <h3 id="methods.inherited.from.class.java.lang.management.PlatformManagedObject">Methods declared in interface java.lang.management.<a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.management/java/lang/management/PlatformManagedObject.html" title="class or interface in java.lang.management" class="external-link" target="_blank">PlatformManagedObject</a></h3> |
| <code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.management/java/lang/management/PlatformManagedObject.html#getObjectName()" title="class or interface in java.lang.management" class="external-link" target="_blank">getObjectName</a></code></div> |
| </section> |
| </li> |
| </ul> |
| </section> |
| <section class="details"> |
| <ul class="details-list"> |
| <!-- ============ METHOD DETAIL ========== --> |
| <li> |
| <section class="method-details" id="method.detail"> |
| <h2>Method Details</h2> |
| <ul class="member-list"> |
| <li> |
| <section class="detail" id="retrieveProcessorUsage(com.ibm.virtualization.management.GuestOSProcessorUsage)"> |
| <h3>retrieveProcessorUsage</h3> |
| <div class="member-signature"><span class="return-type"><a href="GuestOSProcessorUsage.html" title="class in com.ibm.virtualization.management">GuestOSProcessorUsage</a></span> <span class="element-name">retrieveProcessorUsage</span>​<span class="parameters">(<a href="GuestOSProcessorUsage.html" title="class in com.ibm.virtualization.management">GuestOSProcessorUsage</a> gpUsage)</span> |
| throws <span class="exceptions"><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/NullPointerException.html" title="class or interface in java.lang" class="external-link" target="_blank">NullPointerException</a>, |
| <a href="GuestOSInfoRetrievalException.html" title="class in com.ibm.virtualization.management">GuestOSInfoRetrievalException</a></span></div> |
| <div class="block">Snapshot of the Guest Processor usage statistics as seen by the Hypervisor, returned as a |
| <a href="GuestOSProcessorUsage.html" title="class in com.ibm.virtualization.management"><code>GuestOSProcessorUsage</code></a> object. The statistics are an |
| aggregate across all physical CPUs assigned to the Guest by the Hypervisor.</div> |
| <dl class="notes"> |
| <dt>Parameters:</dt> |
| <dd><code>gpUsage</code> - User provided <a href="GuestOSProcessorUsage.html" title="class in com.ibm.virtualization.management"><code>GuestOSProcessorUsage</code></a> object.</dd> |
| <dt>Returns:</dt> |
| <dd>The updated <a href="GuestOSProcessorUsage.html" title="class in com.ibm.virtualization.management"><code>GuestOSProcessorUsage</code></a> object.</dd> |
| <dt>Throws:</dt> |
| <dd><code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/NullPointerException.html" title="class or interface in java.lang" class="external-link" target="_blank">NullPointerException</a></code> - if a null reference is passed.</dd> |
| <dd><code><a href="GuestOSInfoRetrievalException.html" title="class in com.ibm.virtualization.management">GuestOSInfoRetrievalException</a></code> - if it failed to obtain usage statistics. |
| |
| <p>In case of an exception, the handler code can use toString() on the exception code |
| to obtain a description of the exception.</dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="retrieveProcessorUsage()"> |
| <h3>retrieveProcessorUsage</h3> |
| <div class="member-signature"><span class="return-type"><a href="GuestOSProcessorUsage.html" title="class in com.ibm.virtualization.management">GuestOSProcessorUsage</a></span> <span class="element-name">retrieveProcessorUsage</span>() |
| throws <span class="exceptions"><a href="GuestOSInfoRetrievalException.html" title="class in com.ibm.virtualization.management">GuestOSInfoRetrievalException</a></span></div> |
| <div class="block">Function instantiates a <a href="GuestOSProcessorUsage.html" title="class in com.ibm.virtualization.management"><code>GuestOSProcessorUsage</code></a> object and populates it with the |
| current snapshot of Processor Usage statistics of the Guest as seen by the Hypervisor. |
| The statistics are an aggregate across all physical CPUs assigned to the Guest by the Hypervisor.</div> |
| <dl class="notes"> |
| <dt>Returns:</dt> |
| <dd>The new <a href="GuestOSProcessorUsage.html" title="class in com.ibm.virtualization.management"><code>GuestOSProcessorUsage</code></a> object.</dd> |
| <dt>Throws:</dt> |
| <dd><code><a href="GuestOSInfoRetrievalException.html" title="class in com.ibm.virtualization.management">GuestOSInfoRetrievalException</a></code> - if it failed to obtain usage statistics. |
| |
| <p>In case of an exception, the handler code can use toString() on the exception code |
| to obtain a description of the exception.</dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="retrieveMemoryUsage(com.ibm.virtualization.management.GuestOSMemoryUsage)"> |
| <h3>retrieveMemoryUsage</h3> |
| <div class="member-signature"><span class="return-type"><a href="GuestOSMemoryUsage.html" title="class in com.ibm.virtualization.management">GuestOSMemoryUsage</a></span> <span class="element-name">retrieveMemoryUsage</span>​<span class="parameters">(<a href="GuestOSMemoryUsage.html" title="class in com.ibm.virtualization.management">GuestOSMemoryUsage</a> gmUsage)</span> |
| throws <span class="exceptions"><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/NullPointerException.html" title="class or interface in java.lang" class="external-link" target="_blank">NullPointerException</a>, |
| <a href="GuestOSInfoRetrievalException.html" title="class in com.ibm.virtualization.management">GuestOSInfoRetrievalException</a></span></div> |
| <div class="block">Snapshot of the Guest Memory usage statistics as seen by the Hypervisor, returned as |
| a <a href="GuestOSMemoryUsage.html" title="class in com.ibm.virtualization.management"><code>GuestOSMemoryUsage</code></a> object.</div> |
| <dl class="notes"> |
| <dt>Parameters:</dt> |
| <dd><code>gmUsage</code> - User provided <a href="GuestOSMemoryUsage.html" title="class in com.ibm.virtualization.management"><code>GuestOSMemoryUsage</code></a> object.</dd> |
| <dt>Returns:</dt> |
| <dd>The updated <a href="GuestOSMemoryUsage.html" title="class in com.ibm.virtualization.management"><code>GuestOSMemoryUsage</code></a> object.</dd> |
| <dt>Throws:</dt> |
| <dd><code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/NullPointerException.html" title="class or interface in java.lang" class="external-link" target="_blank">NullPointerException</a></code> - if a null reference is passed.</dd> |
| <dd><code><a href="GuestOSInfoRetrievalException.html" title="class in com.ibm.virtualization.management">GuestOSInfoRetrievalException</a></code> - if it failed to obtain usage statistics. |
| |
| <p>In case of an exception, the handler code can use toString() on the exception code |
| to obtain a description of the exception.</dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="retrieveMemoryUsage()"> |
| <h3>retrieveMemoryUsage</h3> |
| <div class="member-signature"><span class="return-type"><a href="GuestOSMemoryUsage.html" title="class in com.ibm.virtualization.management">GuestOSMemoryUsage</a></span> <span class="element-name">retrieveMemoryUsage</span>() |
| throws <span class="exceptions"><a href="GuestOSInfoRetrievalException.html" title="class in com.ibm.virtualization.management">GuestOSInfoRetrievalException</a></span></div> |
| <div class="block">Function instantiates a <a href="GuestOSMemoryUsage.html" title="class in com.ibm.virtualization.management"><code>GuestOSMemoryUsage</code></a> object and populates it with the |
| current snapshot of Memory Usage statistics of the Guest as seen by the Hypervisor.</div> |
| <dl class="notes"> |
| <dt>Returns:</dt> |
| <dd>The new <a href="GuestOSMemoryUsage.html" title="class in com.ibm.virtualization.management"><code>GuestOSMemoryUsage</code></a> object.</dd> |
| <dt>Throws:</dt> |
| <dd><code><a href="GuestOSInfoRetrievalException.html" title="class in com.ibm.virtualization.management">GuestOSInfoRetrievalException</a></code> - if it failed to obtain usage statistics. |
| |
| <p>In case of an exception, the handler code can use toString() on the exception code |
| to obtain a description of the exception.</dd> |
| </dl> |
| </section> |
| </li> |
| </ul> |
| </section> |
| </li> |
| </ul> |
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