Package org.apache.hadoop.hbase.regionserver.wal

Class TestLogRollingNoCluster

java.lang.Object

org.apache.hadoop.hbase.regionserver.wal.TestLogRollingNoCluster

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

Test many concurrent appenders to an WAL while rolling the log.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
(package private) static class	TestLogRollingNoCluster.Appender	Appender thread.
static class	TestLogRollingNoCluster.HighLatencySyncWriter	ProtobufLogWriter that simulates higher latencies in sync() call

Field Summary

Fields

Modifier and Type	Field	Description
private static final byte[]	EMPTY_1K_ARRAY
private static final int	NUM_ENTRIES
private static final int	NUM_THREADS
private static final HBaseTestingUtil	TEST_UTIL

Constructor Summary

Constructors

Constructor	Description
TestLogRollingNoCluster()

Method Summary

Modifier and Type	Method	Description
void	testContendedLogRolling()	Spin up a bunch of threads and have them all append to a WAL.

Methods inherited from class java.lang.Object

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

Field Details

TEST_UTIL

private static final HBaseTestingUtil TEST_UTIL

EMPTY_1K_ARRAY

private static final byte[] EMPTY_1K_ARRAY

NUM_THREADS

private static final int NUM_THREADS

See Also:

• Constant Field Values

NUM_ENTRIES

private static final int NUM_ENTRIES

See Also:

• Constant Field Values

Constructor Details

TestLogRollingNoCluster

public TestLogRollingNoCluster()

Method Details

testContendedLogRolling

@Test
public void testContendedLogRolling()
                             throws Exception

Spin up a bunch of threads and have them all append to a WAL. Roll the WAL frequently to try and trigger NPE.

Throws:

Exception