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java.lang.Objectorg.apache.hadoop.mapred.JobHistory.Task
org.apache.hadoop.mapred.JobHistory.TaskAttempt
org.apache.hadoop.mapred.JobHistory.ReduceAttempt
public static class JobHistory.ReduceAttempt
Helper class for logging or reading back events related to start, finish or failure of a Map Attempt on a node.
| Constructor Summary | |
|---|---|
JobHistory.ReduceAttempt()
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|
| Method Summary | |
|---|---|
String |
get(JobHistory.Keys k)
Get 'String' value for given key. |
int |
getInt(JobHistory.Keys k)
Convert value from history to int and return. |
long |
getLong(JobHistory.Keys k)
Convert value from history to int and return. |
Map<JobHistory.Keys,String> |
getValues()
Returns Map containing all key-values. |
void |
handle(Map<JobHistory.Keys,String> values)
Reads values back from the history, input is same Map as passed to Listener by parseHistory(). |
static void |
logFailed(TaskAttemptID taskAttemptId,
long timestamp,
String hostName,
String error)
Deprecated. Use logFailed(TaskAttemptID, long, String, String, String) |
static void |
logFailed(TaskAttemptID taskAttemptId,
long timestamp,
String hostName,
String error,
String taskType)
Log failed reduce task attempt. |
static void |
logFinished(TaskAttemptID taskAttemptId,
long shuffleFinished,
long sortFinished,
long finishTime,
String hostName)
Deprecated. Use logFinished(TaskAttemptID, long, long, long, String, String, String, Counters) |
static void |
logFinished(TaskAttemptID taskAttemptId,
long shuffleFinished,
long sortFinished,
long finishTime,
String hostName,
String taskType,
String stateString,
Counters counter)
Log finished event of this task. |
static void |
logKilled(TaskAttemptID taskAttemptId,
long timestamp,
String hostName,
String error)
Deprecated. Use logKilled(TaskAttemptID, long, String, String, String) |
static void |
logKilled(TaskAttemptID taskAttemptId,
long timestamp,
String hostName,
String error,
String taskType)
Log killed reduce task attempt. |
static void |
logStarted(TaskAttemptID taskAttemptId,
long startTime,
String hostName)
Deprecated. Use logStarted(TaskAttemptID, long, String, int, String) |
static void |
logStarted(TaskAttemptID taskAttemptId,
long startTime,
String trackerName,
int httpPort,
String taskType)
Log start time of Reduce task attempt. |
void |
set(JobHistory.Keys k,
String s)
Set value for the key. |
void |
set(Map<JobHistory.Keys,String> m)
Adds all values in the Map argument to its own values. |
| Methods inherited from class org.apache.hadoop.mapred.JobHistory.Task |
|---|
getTaskAttempts, logFailed, logFailed, logFinished, logStarted, logUpdates |
| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
|---|
public JobHistory.ReduceAttempt()
| Method Detail |
|---|
@Deprecated
public static void logStarted(TaskAttemptID taskAttemptId,
long startTime,
String hostName)
logStarted(TaskAttemptID, long, String, int, String)
taskAttemptId - task attempt idstartTime - start timehostName - host name
public static void logStarted(TaskAttemptID taskAttemptId,
long startTime,
String trackerName,
int httpPort,
String taskType)
taskAttemptId - task attempt idstartTime - start timetrackerName - tracker namehttpPort - the http port of the tracker executing the task attempttaskType - Whether the attempt is cleanup or setup or reduce
@Deprecated
public static void logFinished(TaskAttemptID taskAttemptId,
long shuffleFinished,
long sortFinished,
long finishTime,
String hostName)
logFinished(TaskAttemptID, long, long, long, String, String, String, Counters)
taskAttemptId - task attempt idshuffleFinished - shuffle finish timesortFinished - sort finish timefinishTime - finish time of taskhostName - host name where task attempt executed
public static void logFinished(TaskAttemptID taskAttemptId,
long shuffleFinished,
long sortFinished,
long finishTime,
String hostName,
String taskType,
String stateString,
Counters counter)
taskAttemptId - task attempt idshuffleFinished - shuffle finish timesortFinished - sort finish timefinishTime - finish time of taskhostName - host name where task attempt executedtaskType - Whether the attempt is cleanup or setup or reducestateString - the state string of the attemptcounter - counters of the attempt
@Deprecated
public static void logFailed(TaskAttemptID taskAttemptId,
long timestamp,
String hostName,
String error)
logFailed(TaskAttemptID, long, String, String, String)
taskAttemptId - task attempt idtimestamp - time stamp when task failedhostName - host name of the task attempt.error - error message of the task.
public static void logFailed(TaskAttemptID taskAttemptId,
long timestamp,
String hostName,
String error,
String taskType)
taskAttemptId - task attempt idtimestamp - time stamp when task failedhostName - host name of the task attempt.error - error message of the task.taskType - Whether the attempt is cleanup or setup or reduce
@Deprecated
public static void logKilled(TaskAttemptID taskAttemptId,
long timestamp,
String hostName,
String error)
logKilled(TaskAttemptID, long, String, String, String)
taskAttemptId - task attempt idtimestamp - time stamp when task failedhostName - host name of the task attempt.error - error message of the task.
public static void logKilled(TaskAttemptID taskAttemptId,
long timestamp,
String hostName,
String error,
String taskType)
taskAttemptId - task attempt idtimestamp - time stamp when task failedhostName - host name of the task attempt.error - error message of the task.taskType - Whether the attempt is cleanup or setup or reducepublic String get(JobHistory.Keys k)
k -
public int getInt(JobHistory.Keys k)
k - keypublic long getLong(JobHistory.Keys k)
k -
public void set(JobHistory.Keys k,
String s)
k - s - public void set(Map<JobHistory.Keys,String> m)
m - public void handle(Map<JobHistory.Keys,String> values)
values - public Map<JobHistory.Keys,String> getValues()
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