com.bigdata.counters.linux
Class VMStatCollector

java.lang.Object
  com.bigdata.counters.AbstractProcessCollector
      com.bigdata.counters.linux.VMStatCollector

All Implemented Interfaces:

ICounterHierarchy, IHostCounters, IRequiredHostCounters, IStatisticsCollector

public class VMStatCollector
extends AbstractProcessCollector
implements ICounterHierarchy, IRequiredHostCounters, IHostCounters

Collects some counters using vmstat.

Version:

$Id: VMStatCollector.java 2265 2009-10-26 12:51:06Z thompsonbry $

Author:

Bryan Thompson

Field Summary

protected boolean	cpuStats true iff you want collect the user time, system time, and IO WAIT time using vmstat (as opposed to sar).
protected static Pattern	pattern The Pattern used to split apart the rows read from vmstat.

Fields inherited from class com.bigdata.counters.AbstractProcessCollector

activeProcess, log

Fields inherited from interface com.bigdata.counters.IHostCounters

CPU_PercentIOWait, CPU_PercentSystemTime, CPU_PercentUserTime, Info_NumProcessors, Info_ProcessorInfo, Memory_Bytes_Available, Memory_Bytes_Free, Memory_MinorFaultsPerSec, Memory_SwapBytesAvailable, Memory_SwapBytesUsed, PhysicalDisk_ReadsPerSec, PhysicalDisk_WritesPerSec

Fields inherited from interface com.bigdata.counters.IRequiredHostCounters

CPU_PercentProcessorTime, Info_Architecture, Info_OperatingSystemName, Info_OperatingSystemVersion, LogicalDisk_PercentFreeSpace, Memory_majorFaultsPerSecond, PhysicalDisk_BytesReadPerSec, PhysicalDisk_BytesWrittenPerSec

Fields inherited from interface com.bigdata.counters.ICounterHierarchy

CPU, Info, LogicalDisk, Memory, Memory_GarbageCollectors, PhysicalDisk, ps

Constructor Summary

VMStatCollector(int interval, boolean cpuStats)

Method Summary

List<String>	getCommand()
CounterSet	getCounters() Declares the counters that we will collect
AbstractProcessReader	getProcessReader()

Methods inherited from class com.bigdata.counters.AbstractProcessCollector

getInterval, setEnvironment, start, stop

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

cpuStats

protected final boolean cpuStats

true iff you want collect the user time, system time, and IO WAIT time using vmstat (as opposed to sar).

pattern

protected static final Pattern pattern

The Pattern used to split apart the rows read from vmstat.

Constructor Detail

VMStatCollector

public VMStatCollector(int interval,
                       boolean cpuStats)

Parameters:

interval - The interval for the collected statistics.

cpuStats - true iff you want collect the user time, system time, and IO WAIT time using vmstat (as opposed to sar).

Method Detail

getCommand

public List<String> getCommand()

Specified by:

getCommand in class AbstractProcessCollector

getCounters

public CounterSet getCounters()

Declares the counters that we will collect

Specified by:

getCounters in interface IStatisticsCollector

getProcessReader

public AbstractProcessReader getProcessReader()

Specified by:

getProcessReader in class AbstractProcessCollector