org.apache.hadoop.hbase.exceptions

Class ClientExceptionsUtil

java.lang.Object

org.apache.hadoop.hbase.exceptions.ClientExceptionsUtil

@InterfaceAudience.Private
 @InterfaceStability.Evolving
public final class ClientExceptionsUtil
extends Object

Field Summary

Fields

Modifier and Type	Field and Description
private static org.apache.hbase.thirdparty.com.google.common.collect.ImmutableSet<Class<? extends Throwable>>	CONNECTION_EXCEPTION_TYPES

Constructor Summary

Constructors

Modifier	Constructor and Description
private	ClientExceptionsUtil()

Method Summary

Modifier and Type	Method and Description
static Throwable	findException(Object exception) Look for an exception we know in the remote exception: - hadoop.ipc wrapped exceptions - nested exceptions Looks for: RegionMovedException / RegionOpeningException / RegionTooBusyException / RpcThrottlingException
static Set<Class<? extends Throwable>>	getConnectionExceptionTypes() For test only.
static boolean	isCallDroppedException(Throwable t) Checks if the exception is CallDroppedException (maybe wrapped into some RemoteException).
static boolean	isCallQueueTooBigException(Throwable t) Checks if the exception is CallQueueTooBig exception (maybe wrapped into some RemoteException).
static boolean	isConnectionException(Throwable e) Check if the exception is something that indicates that we cannot contact/communicate with the server.
static boolean	isMetaClearingException(Throwable cur)
static boolean	isSpecialException(Throwable cur)
static Throwable	translatePFFE(Throwable t) Translates exception for preemptive fast fail checks.

Methods inherited from class java.lang.Object

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

Field Detail

CONNECTION_EXCEPTION_TYPES

private static final org.apache.hbase.thirdparty.com.google.common.collect.ImmutableSet<Class<? extends Throwable>> CONNECTION_EXCEPTION_TYPES

Constructor Detail

ClientExceptionsUtil

private ClientExceptionsUtil()

Method Detail

isMetaClearingException

public static boolean isMetaClearingException(Throwable cur)

isSpecialException

public static boolean isSpecialException(Throwable cur)

findException

public static Throwable findException(Object exception)

Look for an exception we know in the remote exception: - hadoop.ipc wrapped exceptions - nested exceptions Looks for: RegionMovedException / RegionOpeningException / RegionTooBusyException / RpcThrottlingException

Returns:

null if we didn't find the exception, the exception otherwise.

isCallQueueTooBigException

public static boolean isCallQueueTooBigException(Throwable t)

Checks if the exception is CallQueueTooBig exception (maybe wrapped into some RemoteException).

Parameters:

t - exception to check

Returns:

true if it's a CQTBE, false otherwise

isCallDroppedException

public static boolean isCallDroppedException(Throwable t)

Checks if the exception is CallDroppedException (maybe wrapped into some RemoteException).

Parameters:

t - exception to check

Returns:

true if it's a CQTBE, false otherwise

getConnectionExceptionTypes

public static Set<Class<? extends Throwable>> getConnectionExceptionTypes()

For test only. Usually you should use the isConnectionException(Throwable) method below.

isConnectionException

public static boolean isConnectionException(Throwable e)

Check if the exception is something that indicates that we cannot contact/communicate with the server.

Parameters:

e - exception to check

Returns:

true when exception indicates that the client wasn't able to make contact with server

translatePFFE

public static Throwable translatePFFE(Throwable t)
                               throws IOException

Translates exception for preemptive fast fail checks.

Parameters:

t - exception to check

Returns:

translated exception

Throws:

IOException