Package org.apache.hadoop.yarn.webapp.log

Class DFSContainerLogsUtils

java.lang.Object

org.apache.hadoop.yarn.webapp.log.DFSContainerLogsUtils

public class DFSContainerLogsUtils
extends java.lang.Object

Contains utilities for fetching a user's log file from DFS.

Field Summary

Fields

Modifier and Type	Field	Description
static org.slf4j.Logger	LOG

Constructor Summary

Constructors

Constructor	Description
DFSContainerLogsUtils()

Method Summary

Modifier and Type	Method	Description
static java.util.List<org.apache.hadoop.fs.Path>	getContainerLogDirs(org.apache.hadoop.yarn.api.records.ContainerId containerId)
static org.apache.hadoop.fs.Path	getContainerLogFile(org.apache.hadoop.yarn.api.records.ContainerId containerId, java.lang.String fileName, java.lang.String remoteUser)	Finds the log file with the given filename for the given container.
static long	getFileLength(org.apache.hadoop.fs.Path logFile)
static org.apache.hadoop.fs.Path[]	getFilesInDir(org.apache.hadoop.fs.Path dir)
static java.io.InputStream	openLogFileForRead(java.lang.String containerIdStr, org.apache.hadoop.fs.Path logFile, java.lang.String user)

Methods inherited from class java.lang.Object

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

Field Detail

LOG

public static final org.slf4j.Logger LOG

Constructor Detail

DFSContainerLogsUtils

public DFSContainerLogsUtils()

Method Detail

getContainerLogDirs

public static java.util.List<org.apache.hadoop.fs.Path> getContainerLogDirs(org.apache.hadoop.yarn.api.records.ContainerId containerId)
                                                                     throws java.io.IOException

Throws:

java.io.IOException

getContainerLogFile

public static org.apache.hadoop.fs.Path getContainerLogFile(org.apache.hadoop.yarn.api.records.ContainerId containerId,
                                                            java.lang.String fileName,
                                                            java.lang.String remoteUser)
                                                     throws java.io.IOException

Finds the log file with the given filename for the given container.

Throws:

java.io.IOException

openLogFileForRead

public static java.io.InputStream openLogFileForRead(java.lang.String containerIdStr,
                                                     org.apache.hadoop.fs.Path logFile,
                                                     java.lang.String user)
                                              throws java.io.IOException

Throws:

java.io.IOException

getFileLength

public static long getFileLength(org.apache.hadoop.fs.Path logFile)
                          throws java.io.IOException

Throws:

java.io.IOException

getFilesInDir

public static org.apache.hadoop.fs.Path[] getFilesInDir(org.apache.hadoop.fs.Path dir)
                                                 throws java.io.IOException

Throws:

java.io.IOException