Package org.apache.hadoop.hbase.master

Class TestRecoverUnknownWithNullRegionLocation

java.lang.Object

org.apache.hadoop.hbase.master.TestRecoverUnknownWithNullRegionLocation

@Tag("org.apache.hadoop.hbase.testclassification.MasterTests") @Tag("org.apache.hadoop.hbase.testclassification.MediumTests")
public class TestRecoverUnknownWithNullRegionLocation
extends Object

Test for HBASE-30142. Verifies that scheduleSCPsForUnknownServers (i.e. the recoverUnknown HBCK command) does not throw a NullPointerException when a region's regionLocation is null while its state is something other than OFFLINE.

Before HBASE-30142, ServerManager.isServerUnknown(org.apache.hadoop.hbase.ServerName) returned true for a null server name, so a region whose location had been temporarily nulled (e.g. between region transitions or while marking it FAILED_OPEN / ABNORMALLY_CLOSED) was treated as living on an "unknown" server. The downstream call to shouldSubmitSCP(null) then dereferenced the null and crashed.

Field Summary

Fields

Modifier and Type	Field	Description
private static final byte[]	FAMILY
private static final org.apache.hadoop.hbase.TableName	TABLE_NAME
private static HBaseTestingUtil	UTIL

Constructor Summary

Constructors

Constructor	Description
TestRecoverUnknownWithNullRegionLocation()

Method Summary

Modifier and Type	Method	Description
static void	setUpBeforeClass()
static void	tearDownAfterClass()
void	testRecoverUnknownWithAbnormallyClosedRegion()	Drive the region into ABNORMALLY_CLOSED through the AssignmentManager.regionClosedAbnormally(RegionStateNode) path (the same path SCP uses).

Methods inherited from class java.lang.Object

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

Field Details

UTIL

private static HBaseTestingUtil UTIL

TABLE_NAME

private static final org.apache.hadoop.hbase.TableName TABLE_NAME

FAMILY

private static final byte[] FAMILY

Constructor Details

TestRecoverUnknownWithNullRegionLocation

public TestRecoverUnknownWithNullRegionLocation()

Method Details

setUpBeforeClass

@BeforeAll
public static void setUpBeforeClass()
                             throws Exception

Throws:

Exception

tearDownAfterClass

@AfterAll
public static void tearDownAfterClass()
                               throws Exception

Throws:

Exception

testRecoverUnknownWithAbnormallyClosedRegion

@Test
public void testRecoverUnknownWithAbnormallyClosedRegion()
                                                  throws Exception

Drive the region into ABNORMALLY_CLOSED through the AssignmentManager.regionClosedAbnormally(RegionStateNode) path (the same path SCP uses). That method also nulls regionLocation while leaving state non-OFFLINE. Then call scheduleSCPsForUnknownServers and assert no NPE.

Throws:

Exception