org.apache.hadoop.yarn.webapp.log

Class DFSContainerLogsUtils

java.lang.Object

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

public class DFSContainerLogsUtils
extends Object

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

Field Summary

Fields

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

Constructor Summary

Constructors

Constructor and Description
DFSContainerLogsUtils()

Method Summary

Methods

Modifier and Type	Method and Description
static 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, String fileName, 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 InputStream	openLogFileForRead(String containerIdStr, org.apache.hadoop.fs.Path logFile, 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 List<org.apache.hadoop.fs.Path> getContainerLogDirs(org.apache.hadoop.yarn.api.records.ContainerId containerId)
                                                           throws IOException

Throws:

IOException

getContainerLogFile

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

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

Throws:

IOException

openLogFileForRead

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

Throws:

IOException

getFileLength

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

Throws:

IOException

getFilesInDir

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

Throws:

IOException