org.apache.hadoop.yarn.server.nodemanager.util
Class ProcessIdFileReader

java.lang.Object
  org.apache.hadoop.yarn.server.nodemanager.util.ProcessIdFileReader

public class ProcessIdFileReader
extends Object

Helper functionality to read the pid from a file.

Constructor Summary

ProcessIdFileReader()

Method Summary

static String

getProcessId(org.apache.hadoop.fs.Path path) Get the process id from specified file path.

Methods inherited from class java.lang.Object

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

Constructor Detail

ProcessIdFileReader

public ProcessIdFileReader()

Method Detail

getProcessId

public static String getProcessId(org.apache.hadoop.fs.Path path)
                           throws IOException

Get the process id from specified file path. Parses each line to find a valid number and returns the first one found.

Returns:

Process Id if obtained from path specified else null

Throws:

IOException