org.apache.hadoop.hbase.client

Class TestFromClientSideScanExcpetion

java.lang.Object

org.apache.hadoop.hbase.client.TestFromClientSideScanExcpetion

Direct Known Subclasses:

TestFromClientSideScanExcpetionWithCoprocessor

public class TestFromClientSideScanExcpetion
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	TestFromClientSideScanExcpetion.MyHRegion
static class	TestFromClientSideScanExcpetion.MyHStore
static class	TestFromClientSideScanExcpetion.MyStoreScanner

Field Summary

Fields

Modifier and Type	Field and Description
static HBaseClassTestRule	CLASS_RULE
org.junit.rules.TestName	name
protected static HBaseTestingUtility	TEST_UTIL

Constructor Summary

Constructors

Constructor and Description
TestFromClientSideScanExcpetion()

Method Summary

Modifier and Type	Method and Description
static void	setUpBeforeClass()
static void	tearDownAfterClass()
void	testClientScannerIsResetWhenScanThrowsIOException() Tests the case where a Scan can throw an IOException in the middle of the seek / reseek leaving the server side RegionScanner to be in dirty state.
void	testScannerFailsAfterRetriesWhenCoprocessorThrowsIOE() Tests the case where a coprocessor throws a regular IOException in the scan.
void	testScannerThrowsExceptionWhenCoprocessorThrowsDNRIOE() Tests the case where a coprocessor throws a DoNotRetryIOException in the scan.

Methods inherited from class java.lang.Object

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

Field Detail

CLASS_RULE

public static final HBaseClassTestRule CLASS_RULE

TEST_UTIL

protected static final HBaseTestingUtility TEST_UTIL

name

public org.junit.rules.TestName name

Constructor Detail

TestFromClientSideScanExcpetion

public TestFromClientSideScanExcpetion()

Method Detail

setUpBeforeClass

public static void setUpBeforeClass()
                             throws Exception

Throws:

Exception

tearDownAfterClass

public static void tearDownAfterClass()
                               throws Exception

Throws:

Exception

testClientScannerIsResetWhenScanThrowsIOException

public void testClientScannerIsResetWhenScanThrowsIOException()
                                                       throws IOException,
                                                              InterruptedException

Tests the case where a Scan can throw an IOException in the middle of the seek / reseek leaving the server side RegionScanner to be in dirty state. The client has to ensure that the ClientScanner does not get an exception and also sees all the data.

Throws:

IOException

InterruptedException

testScannerThrowsExceptionWhenCoprocessorThrowsDNRIOE

public void testScannerThrowsExceptionWhenCoprocessorThrowsDNRIOE()
                                                           throws IOException,
                                                                  InterruptedException

Tests the case where a coprocessor throws a DoNotRetryIOException in the scan. The expectation is that the exception will bubble up to the client scanner instead of being retried.

Throws:

IOException

InterruptedException

testScannerFailsAfterRetriesWhenCoprocessorThrowsIOE

public void testScannerFailsAfterRetriesWhenCoprocessorThrowsIOE()
                                                          throws IOException,
                                                                 InterruptedException

Tests the case where a coprocessor throws a regular IOException in the scan. The expectation is that the we will keep on retrying, but fail after the retries are exhausted instead of retrying indefinitely.

Throws:

IOException

InterruptedException