Package com.palantir.opensource.sysmon.linux

The Linux Sysmon package implements platform monitoring for Java VMs running on Linux hosts.

See:
Description

Interface Summary

LinuxEntropyLevelMBean	MBean interface for LinuxEntropyLevelJMXWrapper.
LinuxFileSystemMBean	MBean interface for LinuxDiskspaceJMXWrapper.
LinuxIOStatMBean	MBean interface for LinuxIOStatJMXWrapper.
LinuxLoadAverageMBean	MBean interface for LinuxLoadAverageJMXWrapper.
LinuxNetworkInterfaceMBean	MBean interface for LinuxNetStatJMXWrapper.
LinuxVMStatMBean	MBean interface for LinuxVMStatJMXWrapper.

Class Summary

LinuxDiskspaceJMXWrapper	Monitors disk space on a Linux system.
LinuxEntropyLevel	Data container and JMX MBean implementation for entropy level measurements used by LinuxEntropyLevelJMXWrapper.
LinuxEntropyLevelJMXWrapper	Monitors entropy pools that feed secure random number generation.
LinuxFileSystem	Data container and JMX MBean implementation for file system storage measurements used by LinuxDiskspaceJMXWrapper.
LinuxIOStat	Data container and JMX MBean implementation for I/O statistics used by LinuxIOStatJMXWrapper.
LinuxIOStatJMXWrapper	Monitors I/O statistics as reported by iostat
LinuxLoadAverage	Data container and JMX MBean implementation for load average measurements used by LinuxLoadAverageJMXWrapper.
LinuxLoadAverageJMXWrapper	Monitors load average.
LinuxMonitor	Implementation of Linux monitoring, this class monitors a Linux host system, starts and stops monitors.
LinuxNetStatJMXWrapper	Monitors network interface statistics.
LinuxNetworkInterface	Data container and JMX MBean implementation for per-network interface statistics used by LinuxNetStatJMXWrapper.
LinuxVMStat	Data container and JMX MBean implementation for vmstat data used by LinuxVMStatJMXWrapper.
LinuxVMStatJMXWrapper	Monitors system performance statistics as generated by vmstat.

Exception Summary

LinuxMonitoringException

Exception used to signal errors in the Linux portion of the Sysmon package.

Package com.palantir.opensource.sysmon.linux Description

The Linux Sysmon package implements platform monitoring for Java VMs running on Linux hosts.

LinuxMonitor is the single-entry point class that will start and stop all of the implemented platform monitors. This normally done either as a service embedded in a larger program or in standalone-daemon mode, via SysmonDaemon.

Currently, the following specific monitors are implemented:

• Diskspace (LinuxDiskspaceJMXWrapper) - how full the different block storage devices in the system are.
• Entropy Pool (LinuxEntropyLevelJMXWrapper) - how much entropy is available in the entropy pool.
• IO Statistics (LinuxIOStatJMXWrapper) - measurements of reads, writes, and disk utilization, as provided by iostat.
• Load Average (LinuxLoadAverageJMXWrapper) - the one, ten, and fifteen minuted load averages.
• Network statistics (LinuxNetStatJMXWrapper) - measurements of network traffic.
• Linux VM statistics (LinuxVMStatJMXWrapper)- performance measurements of the Linux virtual machine (not the Java VM), as provided by vmstat.

See individual monitor documentation for details on configuration, SysmonDaemon for examples and usage.