public void initialize(DragonConfiguration conf, JobId id)
throws IOException, ClassNotFoundException, InterruptedException {
Class<? extends ResourceCalculatorPlugin> clazz =
conf.getClass(
DragonConfig.RESOURCE_CALCULATOR_PLUGIN, null, ResourceCalculatorPlugin.class);
resourceCalculator = ResourceCalculatorPlugin.getResourceCalculatorPlugin(clazz, conf);
LOG.info(" Using ResourceCalculatorPlugin : " + resourceCalculator);
if (resourceCalculator != null) {
initCpuCumulativeTime = resourceCalculator.getProcResourceValues().getCumulativeCpuTime();
}
}
/** Update resource information counters */
void updateResourceCounters() {
// Update generic resource counters
updateHeapUsageCounter();
// Updating resources specified in ResourceCalculatorPlugin
if (resourceCalculator == null) {
return;
}
ProcResourceValues res = resourceCalculator.getProcResourceValues();
long cpuTime = res.getCumulativeCpuTime();
long pMem = res.getPhysicalMemorySize();
long vMem = res.getVirtualMemorySize();
// Remove the CPU time consumed previously by JVM reuse
cpuTime -= initCpuCumulativeTime;
counters.getCounter(TaskCounter.CPU_MILLISECONDS).setValue(cpuTime);
counters.getCounter(TaskCounter.PHYSICAL_MEMORY_BYTES).setValue(pMem);
counters.getCounter(TaskCounter.VIRTUAL_MEMORY_BYTES).setValue(vMem);
}