org.apache.druid.query

Class QueryCapacityExceededException

java.lang.Object

java.lang.Throwable

java.lang.Exception

java.lang.RuntimeException

org.apache.druid.query.QueryException

org.apache.druid.query.QueryCapacityExceededException

All Implemented Interfaces:

Serializable

public class QueryCapacityExceededException
extends QueryException

This exception is for QueryResource and SqlResource to surface when a query is cast away after it hits a resource limit. It is currently used in 2 places:

• When the query is rejected by QueryScheduler.
• When the query cannot acquire enough merge buffers for groupBy v2

As a QueryException it is expected to be serialied to a json response, but will be mapped to STATUS_CODE instead of the default HTTP 500 status.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static String	ERROR_CODE
static int	STATUS_CODE

Constructor Summary

Constructors

Constructor and Description
QueryCapacityExceededException(int capacity)
QueryCapacityExceededException(String lane, int capacity)
QueryCapacityExceededException(String errorCode, String errorMessage, String errorClass, String host)

Method Summary

Modifier and Type	Method and Description
static String	makeLaneErrorMessage(String lane, int capacity)
static String	makeTotalErrorMessage(int capacity)
static QueryCapacityExceededException	withErrorMessageAndResolvedHost(String errorMessage) This method sets hostName unlike constructors because this can be called in historicals while those constructors are only used in brokers.

Methods inherited from class org.apache.druid.query.QueryException

getErrorClass, getErrorCode, getHost, getMessage, resolveHostname

Methods inherited from class java.lang.Throwable

addSuppressed, fillInStackTrace, getCause, getLocalizedMessage, getStackTrace, getSuppressed, initCause, printStackTrace, printStackTrace, printStackTrace, setStackTrace, toString

Methods inherited from class java.lang.Object

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

Field Detail

ERROR_CODE

public static final String ERROR_CODE

See Also:

Constant Field Values

STATUS_CODE

public static final int STATUS_CODE

See Also:

Constant Field Values

Constructor Detail

QueryCapacityExceededException

public QueryCapacityExceededException(int capacity)

QueryCapacityExceededException

public QueryCapacityExceededException(String lane,
                                      int capacity)

QueryCapacityExceededException

public QueryCapacityExceededException(String errorCode,
                                      String errorMessage,
                                      String errorClass,
                                      String host)

Method Detail

withErrorMessageAndResolvedHost

public static QueryCapacityExceededException withErrorMessageAndResolvedHost(String errorMessage)

This method sets hostName unlike constructors because this can be called in historicals while those constructors are only used in brokers.

makeTotalErrorMessage

public static String makeTotalErrorMessage(int capacity)

makeLaneErrorMessage

public static String makeLaneErrorMessage(String lane,
                                          int capacity)