org.apache.hadoop.yarn.server.nodemanager.webapp
Class ContainerLogsUtils

java.lang.Object
  org.apache.hadoop.yarn.server.nodemanager.webapp.ContainerLogsUtils

public class ContainerLogsUtils
extends Object

Contains utilities for fetching a user's log file in a secure fashion.

Field Summary

static org.slf4j.Logger

LOG

Constructor Summary

ContainerLogsUtils()

Method Summary

static List<File>	getContainerLogDirs(org.apache.hadoop.yarn.api.records.ContainerId containerId, String remoteUser, Context context) Finds the local directories that logs for the given container are stored on.
static File	getContainerLogFile(org.apache.hadoop.yarn.api.records.ContainerId containerId, String fileName, String remoteUser, Context context) Finds the log file with the given filename for the given container.
static FileInputStream	openLogFileForRead(String containerIdStr, File logFile, Context context)

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

ContainerLogsUtils

public ContainerLogsUtils()

Method Detail

getContainerLogDirs

public static List<File> getContainerLogDirs(org.apache.hadoop.yarn.api.records.ContainerId containerId,
                                             String remoteUser,
                                             Context context)
                                      throws org.apache.hadoop.yarn.exceptions.YarnException

Finds the local directories that logs for the given container are stored on.

Throws:

org.apache.hadoop.yarn.exceptions.YarnException

getContainerLogFile

public static File getContainerLogFile(org.apache.hadoop.yarn.api.records.ContainerId containerId,
                                       String fileName,
                                       String remoteUser,
                                       Context context)
                                throws org.apache.hadoop.yarn.exceptions.YarnException

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

Throws:

org.apache.hadoop.yarn.exceptions.YarnException

openLogFileForRead

public static FileInputStream openLogFileForRead(String containerIdStr,
                                                 File logFile,
                                                 Context context)
                                          throws IOException

Throws:

IOException