org.apache.oozie.action.hadoop

Class LauncherHelper

java.lang.Object

org.apache.oozie.action.hadoop.LauncherHelper

public class LauncherHelper
extends Object

Field Summary

Fields

Modifier and Type	Field and Description
static String	OOZIE_ACTION_YARN_TAG

Constructor Summary

Constructors

Constructor and Description
LauncherHelper()

Method Summary

Modifier and Type	Method and Description
static Map<String,String>	getActionData(org.apache.hadoop.fs.FileSystem fs, org.apache.hadoop.fs.Path actionDir, org.apache.hadoop.conf.Configuration conf) Utility function to load the contents of action data sequence file into memory object
static org.apache.hadoop.fs.Path	getActionDataSequenceFilePath(org.apache.hadoop.fs.Path actionDir) Get the sequence file path storing all action data
static String	getActionYarnTag(org.apache.hadoop.conf.Configuration conf, String parentId, WorkflowAction wfAction)
static String	getRecoveryId(org.apache.hadoop.conf.Configuration launcherConf, org.apache.hadoop.fs.Path actionDir, String recoveryId)
static String	getTag(String launcherTag)
static boolean	hasExternalChildJobs(Map<String,String> actionData) Determine whether action has external child jobs or not
static boolean	hasIdSwap(Map<String,String> actionData) Determine whether action has new id (id swap) or not
static boolean	hasOutputData(Map<String,String> actionData) Determine whether action has output data or not
static boolean	hasStatsData(Map<String,String> actionData) Determine whether action has external stats or not
static boolean	isMainDone(org.apache.hadoop.mapred.RunningJob runningJob)
static boolean	isMainSuccessful(org.apache.hadoop.mapred.RunningJob runningJob)
static void	setupLauncherInfo(org.apache.hadoop.conf.Configuration launcherConf, String jobId, String actionId, org.apache.hadoop.fs.Path actionDir, String recoveryId, org.apache.hadoop.conf.Configuration actionConf, String prepareXML)
static void	setupLauncherURIHandlerConf(org.apache.hadoop.conf.Configuration launcherConf)
static void	setupMainArguments(org.apache.hadoop.conf.Configuration launcherConf, String[] args)
static void	setupMainClass(org.apache.hadoop.conf.Configuration launcherConf, String javaMainClass)
static void	setupMaxExternalStatsSize(org.apache.hadoop.conf.Configuration launcherConf, int maxStatsData) Set the maximum value of stats data
static void	setupMaxFSGlob(org.apache.hadoop.conf.Configuration launcherConf, int fsGlobMax) Set the maximum number of globbed files/dirs
static void	setupMaxOutputData(org.apache.hadoop.conf.Configuration launcherConf, int maxOutputData)
static void	setupYarnRestartHandling(org.apache.hadoop.conf.Configuration launcherJobConf, org.apache.hadoop.conf.Configuration actionConf, String launcherTag, long launcherTime)

Methods inherited from class java.lang.Object

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

Field Detail

OOZIE_ACTION_YARN_TAG

public static final String OOZIE_ACTION_YARN_TAG

See Also:

Constant Field Values

Constructor Detail

LauncherHelper

public LauncherHelper()

Method Detail

getRecoveryId

public static String getRecoveryId(org.apache.hadoop.conf.Configuration launcherConf,
                                   org.apache.hadoop.fs.Path actionDir,
                                   String recoveryId)
                            throws HadoopAccessorException,
                                   IOException

Throws:

HadoopAccessorException

IOException

setupMainClass

public static void setupMainClass(org.apache.hadoop.conf.Configuration launcherConf,
                                  String javaMainClass)

setupLauncherURIHandlerConf

public static void setupLauncherURIHandlerConf(org.apache.hadoop.conf.Configuration launcherConf)

setupMainArguments

public static void setupMainArguments(org.apache.hadoop.conf.Configuration launcherConf,
                                      String[] args)

setupMaxOutputData

public static void setupMaxOutputData(org.apache.hadoop.conf.Configuration launcherConf,
                                      int maxOutputData)

setupMaxExternalStatsSize

public static void setupMaxExternalStatsSize(org.apache.hadoop.conf.Configuration launcherConf,
                                             int maxStatsData)

Set the maximum value of stats data

Parameters:

launcherConf - the oozie launcher configuration

maxStatsData - the maximum allowed size of stats data

setupMaxFSGlob

public static void setupMaxFSGlob(org.apache.hadoop.conf.Configuration launcherConf,
                                  int fsGlobMax)

Set the maximum number of globbed files/dirs

Parameters:

launcherConf - the oozie launcher configuration

fsGlobMax - the maximum number of files/dirs for FS operation

setupLauncherInfo

public static void setupLauncherInfo(org.apache.hadoop.conf.Configuration launcherConf,
                                     String jobId,
                                     String actionId,
                                     org.apache.hadoop.fs.Path actionDir,
                                     String recoveryId,
                                     org.apache.hadoop.conf.Configuration actionConf,
                                     String prepareXML)
                              throws IOException,
                                     HadoopAccessorException

Throws:

IOException

HadoopAccessorException

setupYarnRestartHandling

public static void setupYarnRestartHandling(org.apache.hadoop.conf.Configuration launcherJobConf,
                                            org.apache.hadoop.conf.Configuration actionConf,
                                            String launcherTag,
                                            long launcherTime)
                                     throws NoSuchAlgorithmException

Throws:

NoSuchAlgorithmException

getTag

public static String getTag(String launcherTag)
                     throws NoSuchAlgorithmException

Throws:

NoSuchAlgorithmException

isMainDone

public static boolean isMainDone(org.apache.hadoop.mapred.RunningJob runningJob)
                          throws IOException

Throws:

IOException

isMainSuccessful

public static boolean isMainSuccessful(org.apache.hadoop.mapred.RunningJob runningJob)
                                throws IOException

Throws:

IOException

hasExternalChildJobs

public static boolean hasExternalChildJobs(Map<String,String> actionData)
                                    throws IOException

Determine whether action has external child jobs or not

Parameters:

actionData -

Returns:

true/false

Throws:

IOException

hasOutputData

public static boolean hasOutputData(Map<String,String> actionData)
                             throws IOException

Determine whether action has output data or not

Parameters:

actionData -

Returns:

true/false

Throws:

IOException

hasStatsData

public static boolean hasStatsData(Map<String,String> actionData)
                            throws IOException

Determine whether action has external stats or not

Parameters:

actionData -

Returns:

true/false

Throws:

IOException

hasIdSwap

public static boolean hasIdSwap(Map<String,String> actionData)
                         throws IOException

Determine whether action has new id (id swap) or not

Parameters:

actionData -

Returns:

true/false

Throws:

IOException

getActionDataSequenceFilePath

public static org.apache.hadoop.fs.Path getActionDataSequenceFilePath(org.apache.hadoop.fs.Path actionDir)

Get the sequence file path storing all action data

Parameters:

actionDir -

Returns:

Path returns sequence file path storing all action data

getActionData

public static Map<String,String> getActionData(org.apache.hadoop.fs.FileSystem fs,
                                               org.apache.hadoop.fs.Path actionDir,
                                               org.apache.hadoop.conf.Configuration conf)
                                        throws IOException,
                                               InterruptedException

Utility function to load the contents of action data sequence file into memory object

Parameters:

fs - Action Filesystem

actionDir - Path

conf - Configuration

Returns:

Map action data

Throws:

IOException

InterruptedException

getActionYarnTag

public static String getActionYarnTag(org.apache.hadoop.conf.Configuration conf,
                                      String parentId,
                                      WorkflowAction wfAction)