org.apache.hadoop.hive.ql

Class QueryDisplay

java.lang.Object

org.apache.hadoop.hive.ql.QueryDisplay

public class QueryDisplay
extends Object

Some limited query information to save for WebUI. The class is synchronized, as WebUI may access information about a running query.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	QueryDisplay.Phase
static class	QueryDisplay.TaskDisplay

Field Summary

Fields

Modifier and Type	Field and Description
static com.fasterxml.jackson.databind.ObjectMapper	OBJECT_MAPPER Preffered objectmapper for this class.

Constructor Summary

Constructors

Constructor and Description
QueryDisplay()

Method Summary

Modifier and Type	Method and Description
String	getErrorMessage()
String	getExplainPlan()
String	getFullLogLocation()
Map<String,Long>	getHmsTimings(QueryDisplay.Phase phase)
Map<String,Long>	getPerfLogEnds(QueryDisplay.Phase phase)
Map<String,Long>	getPerfLogStarts(QueryDisplay.Phase phase)
Map<String,Long>	getPerfLogTimes(QueryDisplay.Phase phase)
String	getQueryId()
long	getQueryStartTime()
String	getQueryString()
List<QueryDisplay.TaskDisplay>	getTaskDisplays()
void	setErrorMessage(String errorMessage)
void	setExplainPlan(String explainPlan)
void	setHmsTimings(QueryDisplay.Phase phase, Map<String,Long> hmsTimings)
void	setPerfLogEnds(QueryDisplay.Phase phase, Map<String,Long> perfLogEnds)
void	setPerfLogStarts(QueryDisplay.Phase phase, Map<String,Long> perfLogStarts)
void	setQueryId(String queryId)
void	setQueryStr(String queryStr)
void	setTaskResult(String taskId, TaskResult result)
void	updateTaskStatistics(MapRedStats mapRedStats, org.apache.hadoop.mapred.RunningJob rj, String taskId)
void	updateTaskStatus(Task<?> tTask)

Methods inherited from class java.lang.Object

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

Field Detail

OBJECT_MAPPER

public static final com.fasterxml.jackson.databind.ObjectMapper OBJECT_MAPPER

Preffered objectmapper for this class. It must be used to have things work in shaded environment (and its also more performant).

Constructor Detail

QueryDisplay

public QueryDisplay()

Method Detail

updateTaskStatus

public void updateTaskStatus(Task<?> tTask)

updateTaskStatistics

public void updateTaskStatistics(MapRedStats mapRedStats,
                                 org.apache.hadoop.mapred.RunningJob rj,
                                 String taskId)
                          throws IOException,
                                 org.json.JSONException

Throws:

IOException

org.json.JSONException

getFullLogLocation

public String getFullLogLocation()

setTaskResult

public void setTaskResult(String taskId,
                          TaskResult result)

getTaskDisplays

public List<QueryDisplay.TaskDisplay> getTaskDisplays()

setQueryStr

public void setQueryStr(String queryStr)

getQueryString

public String getQueryString()

getExplainPlan

public String getExplainPlan()

setExplainPlan

public void setExplainPlan(String explainPlan)

getHmsTimings

public Map<String,Long> getHmsTimings(QueryDisplay.Phase phase)

Parameters:

phase - phase of query

Returns:

map of HMS Client method-calls and duration in miliseconds, during given phase.

setHmsTimings

public void setHmsTimings(QueryDisplay.Phase phase,
                          Map<String,Long> hmsTimings)

Parameters:

phase - phase of query

hmsTimings - map of HMS Client method-calls and duration in miliseconds, during given phase.

getPerfLogStarts

public Map<String,Long> getPerfLogStarts(QueryDisplay.Phase phase)

Parameters:

phase - phase of query

Returns:

map of PerfLogger call-trace name and start time in miliseconds, during given phase.

setPerfLogStarts

public void setPerfLogStarts(QueryDisplay.Phase phase,
                             Map<String,Long> perfLogStarts)

Parameters:

phase - phase of query

perfLogStarts - map of PerfLogger call-trace name and start time in miliseconds, during given phase.

getPerfLogEnds

public Map<String,Long> getPerfLogEnds(QueryDisplay.Phase phase)

Parameters:

phase - phase of query

Returns:

map of PerfLogger call-trace name and end time in miliseconds, during given phase.

setPerfLogEnds

public void setPerfLogEnds(QueryDisplay.Phase phase,
                           Map<String,Long> perfLogEnds)

Parameters:

phase - phase of query

perfLogEnds - map of PerfLogger call-trace name and end time in miliseconds, during given phase.

getPerfLogTimes

public Map<String,Long> getPerfLogTimes(QueryDisplay.Phase phase)

Parameters:

phase - phase of query

Returns:

map of PerfLogger call-trace name and duration in miliseconds, during given phase.

getErrorMessage

public String getErrorMessage()

setErrorMessage

public void setErrorMessage(String errorMessage)

getQueryId

public String getQueryId()

setQueryId

public void setQueryId(String queryId)

getQueryStartTime

public long getQueryStartTime()