Package org.apache.druid.java.util.metrics

Class ProcFsReader

java.lang.Object

org.apache.druid.java.util.metrics.ProcFsReader

public class ProcFsReader
extends Object

Fetches data from top-level procfs files for metrics.

Constructor Summary

Constructors

Constructor	Description
ProcFsReader(Path procFsRoot)

Method Summary

Modifier and Type	Method	Description
UUID	getBootId()	Reads the boot ID from the boot_id path, which is just a UUID.
long	getProcessorCount()	Reads the cpuinfo path (example in src/test/resources/cpuinfo) and counts the number of processors.

Methods inherited from class java.lang.Object

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

Constructor Details

ProcFsReader

public ProcFsReader(Path procFsRoot)

Method Details

getBootId

public UUID getBootId()

Reads the boot ID from the boot_id path, which is just a UUID.

Returns:

The boot UUID.

getProcessorCount

public long getProcessorCount()

Reads the cpuinfo path (example in src/test/resources/cpuinfo) and counts the number of processors.

Returns:

the number of processors.