org.gridgain.grid.spi.metrics.jdk
Interface GridJdkLocalMetricsSpiMBean

All Superinterfaces:

GridLocalMetrics, GridSpiManagementMBean, Serializable

All Known Implementing Classes:

GridJdkLocalMetricsSpi

@GridMBeanDescription(value="MBean that provides access to JDK local metrics SPI configuration.")
public interface GridJdkLocalMetricsSpiMBean
extends GridLocalMetrics, GridSpiManagementMBean

Management MBean for GridJdkLocalMetricsSpi SPI.



See Also:

Documentation
Email Support
Online Forums
Issue Tracking

Author: 2005-2008 Copyright © GridGain Systems. All Rights Reserved. ver. 2.1.0

	Nikita Ivanov, GridGain Systems nivanov@gridgain.com
	Dmitriy Setrakyan, GridGain Systems dsetrakyan@gridgain.com
	Alexander Magdenko, GridGain Systems amagdenko@gridgain.com
	Boris Suchodoev, GridGain Systems bsuchodoev@gridgain.com
	Denis Kharlamov, GridGain Systems dkharlamov@gridgain.com
	close

Method Summary

boolean

isPreferSigar() Configuration parameter indicating if Hyperic Sigar should be used regardless of JDK version.

Methods inherited from interface org.gridgain.grid.spi.metrics.GridLocalMetrics

getAvailableProcessors, getCurrentCpuLoad, getDaemonThreadCount, getHeapMemoryCommitted, getHeapMemoryInitialized, getHeapMemoryMaximum, getHeapMemoryUsed, getNonHeapMemoryCommitted, getNonHeapMemoryInitialized, getNonHeapMemoryMaximum, getNonHeapMemoryUsed, getPeakThreadCount, getStartTime, getThreadCount, getTotalStartedThreadCount, getUptime

Methods inherited from interface org.gridgain.grid.spi.GridSpiManagementMBean

getAuthor, getGridGainHome, getLocalNodeId, getName, getStartTimestamp, getStartTimestampFormatted, getUpTime, getUpTimeFormatted, getVendorEmail, getVendorUrl, getVersion

Method Detail

isPreferSigar

@GridMBeanDescription(value="Parameter indicating if Hyperic Sigar should be used regardless of JDK version.")
boolean isPreferSigar()

Configuration parameter indicating if Hyperic Sigar should be used regardless of JDK version. Hyperic Sigar is used to provide CPU load. Starting with JDK 1.6, method OperatingSystemMXBean.getSystemLoadAverage() method was added. However, even in 1.6 and higher this method does not always provide CPU load on some operating systems - in such cases Hyperic Sigar will be used automatically.

Returns:

If true then Hyperic Sigar should be used regardless of JDK version, if false, then implementation will attempt to use OperatingSystemMXBean.getSystemLoadAverage() for JDK 1.6 and higher.