HBASE-14635 Fix flaky test TestSnapshotCloneIndependence

Signed-off-by: Matteo Bertozzi <matteo.bertozzi@cloudera.com>
This commit is contained in:
Apekshit 2016-05-25 16:07:22 -07:00 committed by Matteo Bertozzi
parent a049b5f799
commit 7af013b267
1 changed files with 136 additions and 222 deletions

View File

@ -18,7 +18,6 @@
package org.apache.hadoop.hbase.client;
import java.io.IOException;
import java.util.List;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
@ -34,38 +33,56 @@ import org.apache.hadoop.hbase.TableName;
import org.apache.hadoop.hbase.master.snapshot.SnapshotManager;
import org.apache.hadoop.hbase.regionserver.ConstantSizeRegionSplitPolicy;
import org.apache.hadoop.hbase.snapshot.SnapshotTestingUtils;
import org.apache.hadoop.hbase.snapshot.TestRestoreFlushSnapshotFromClient;
import org.apache.hadoop.hbase.testclassification.ClientTests;
import org.apache.hadoop.hbase.testclassification.LargeTests;
import org.apache.hadoop.hbase.testclassification.MediumTests;
import org.apache.hadoop.hbase.util.Bytes;
import org.apache.hadoop.hbase.util.Threads;
import org.junit.After;
import org.junit.AfterClass;
import org.junit.Assert;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Ignore;
import org.junit.Rule;
import org.junit.Test;
import org.junit.Ignore;
import org.junit.experimental.categories.Category;
import org.junit.rules.TestName;
import org.junit.rules.Timeout;
/**
* Test to verify that the cloned table is independent of the table from which it was cloned
*/
@Category({LargeTests.class, ClientTests.class})
@Category({MediumTests.class, ClientTests.class})
public class TestSnapshotCloneIndependence {
private static final Log LOG = LogFactory.getLog(TestSnapshotCloneIndependence.class);
@Rule
public Timeout globalTimeout = Timeout.seconds(60);
@Rule
public TestName testName = new TestName();
protected static final HBaseTestingUtility UTIL = new HBaseTestingUtility();
protected static final int NUM_RS = 2;
private static final String STRING_TABLE_NAME = "test";
private static final String TEST_FAM_STR = "fam";
protected static final byte[] TEST_FAM = Bytes.toBytes(TEST_FAM_STR);
protected static final TableName TABLE_NAME = TableName.valueOf(STRING_TABLE_NAME);
private static final int CLEANER_INTERVAL = 100;
private FileSystem fs;
private Path rootDir;
private Admin admin;
private TableName originalTableName;
private Table originalTable;
private TableName cloneTableName;
private int countOriginalTable;
String snapshotNameAsString;
byte[] snapshotName;
/**
* Setup the config for the cluster and start it
* @throws Exception on fOailure
*/
@BeforeClass
public static void setupCluster() throws Exception {
@ -105,12 +122,25 @@ public class TestSnapshotCloneIndependence {
@Before
public void setup() throws Exception {
createTable(TABLE_NAME, TEST_FAM);
fs = UTIL.getHBaseCluster().getMaster().getMasterFileSystem().getFileSystem();
rootDir = UTIL.getHBaseCluster().getMaster().getMasterFileSystem().getRootDir();
admin = UTIL.getHBaseAdmin();
originalTableName = TableName.valueOf("test" + testName.getMethodName());
cloneTableName = TableName.valueOf("test-clone-" + originalTableName);
snapshotNameAsString = "snapshot_" + originalTableName;
snapshotName = Bytes.toBytes(snapshotNameAsString);
originalTable = createTable(originalTableName, TEST_FAM);
loadData(originalTable, TEST_FAM);
countOriginalTable = countRows(originalTable);
System.out.println("Original table has: " + countOriginalTable + " rows");
}
@After
public void tearDown() throws Exception {
UTIL.deleteTable(TABLE_NAME);
UTIL.deleteTable(originalTableName);
UTIL.deleteTable(cloneTableName);
SnapshotTestingUtils.deleteAllSnapshots(UTIL.getHBaseAdmin());
SnapshotTestingUtils.deleteArchiveDirectory(UTIL);
}
@ -128,78 +158,77 @@ public class TestSnapshotCloneIndependence {
* Verify that adding data to the cloned table will not affect the original, and vice-versa when
* it is taken as an online snapshot.
*/
@Ignore ("Flakey. Fix") @Test (timeout=300000)
@Test
public void testOnlineSnapshotAppendIndependent() throws Exception {
runTestSnapshotAppendIndependent(true);
createAndCloneSnapshot(true);
runTestSnapshotAppendIndependent();
}
/**
* Verify that adding data to the cloned table will not affect the original, and vice-versa when
* it is taken as an offline snapshot.
*/
@Test (timeout=300000)
@Ignore
@Test
public void testOfflineSnapshotAppendIndependent() throws Exception {
runTestSnapshotAppendIndependent(false);
createAndCloneSnapshot(false);
runTestSnapshotAppendIndependent();
}
/**
* Verify that adding metadata to the cloned table will not affect the original, and vice-versa
* when it is taken as an online snapshot.
*/
@Test (timeout=300000)
@Test
public void testOnlineSnapshotMetadataChangesIndependent() throws Exception {
runTestSnapshotMetadataChangesIndependent(true);
createAndCloneSnapshot(true);
runTestSnapshotMetadataChangesIndependent();
}
/**
* Verify that adding netadata to the cloned table will not affect the original, and vice-versa
* when is taken as an online snapshot.
*/
@Test (timeout=300000)
@Ignore
@Test
public void testOfflineSnapshotMetadataChangesIndependent() throws Exception {
runTestSnapshotMetadataChangesIndependent(false);
createAndCloneSnapshot(false);
runTestSnapshotMetadataChangesIndependent();
}
/**
* Verify that region operations, in this case splitting a region, are independent between the
* cloned table and the original.
*/
@Test (timeout=300000)
@Ignore
@Test
public void testOfflineSnapshotRegionOperationsIndependent() throws Exception {
runTestRegionOperationsIndependent(false);
createAndCloneSnapshot(false);
runTestRegionOperationsIndependent();
}
/**
* Verify that region operations, in this case splitting a region, are independent between the
* cloned table and the original.
*/
@Test (timeout=300000)
@Test
public void testOnlineSnapshotRegionOperationsIndependent() throws Exception {
runTestRegionOperationsIndependent(true);
createAndCloneSnapshot(true);
runTestRegionOperationsIndependent();
}
@Test (timeout=300000)
@Ignore
@Test
public void testOfflineSnapshotDeleteIndependent() throws Exception {
runTestSnapshotDeleteIndependent(false);
createAndCloneSnapshot(false);
runTestSnapshotDeleteIndependent();
}
@Ignore ("Flakey test") @Test (timeout=300000)
@Test
public void testOnlineSnapshotDeleteIndependent() throws Exception {
runTestSnapshotDeleteIndependent(true);
createAndCloneSnapshot(true);
runTestSnapshotDeleteIndependent();
}
private static void waitOnSplit(Connection c, final Table t, int originalCount) throws Exception {
for (int i = 0; i < 200; i++) {
try {
Thread.sleep(500);
} catch (InterruptedException e) {
// Restore the interrupted status
Thread.currentThread().interrupt();
}
Threads.sleepWithoutInterrupt(500);
try (RegionLocator locator = c.getRegionLocator(t.getName())) {
if (locator.getAllRegionLocations().size() > originalCount) {
return;
@ -209,240 +238,125 @@ public class TestSnapshotCloneIndependence {
throw new Exception("Split did not increase the number of regions");
}
/*
* Take a snapshot of a table, add data, and verify that this only
* affects one table
/**
* Takes the snapshot of originalTable and clones the snapshot to another tables.
* If {@code online} is false, the original table is disabled during taking snapshot, so also
* enables it again.
* @param online - Whether the table is online or not during the snapshot
*/
private void runTestSnapshotAppendIndependent(boolean online) throws Exception {
FileSystem fs = UTIL.getHBaseCluster().getMaster().getMasterFileSystem().getFileSystem();
Path rootDir = UTIL.getHBaseCluster().getMaster().getMasterFileSystem().getRootDir();
private void createAndCloneSnapshot(boolean online) throws Exception {
SnapshotTestingUtils.createSnapshotAndValidate(admin, originalTableName, TEST_FAM_STR,
snapshotNameAsString, rootDir, fs, online);
Admin admin = UTIL.getHBaseAdmin();
final long startTime = System.currentTimeMillis();
final TableName localTableName =
TableName.valueOf(STRING_TABLE_NAME + startTime);
// If offline, enable the table disabled by snapshot testing util.
if (!online) {
admin.enableTable(originalTableName);
UTIL.waitTableAvailable(originalTableName);
}
try (Table original = createTable(localTableName, TEST_FAM)) {
loadData(original, TEST_FAM);
final int origTableRowCount = countRows(original);
admin.cloneSnapshot(snapshotName, cloneTableName);
UTIL.waitUntilAllRegionsAssigned(cloneTableName);
}
// Take a snapshot
final String snapshotNameAsString = "snapshot_" + localTableName;
byte[] snapshotName = Bytes.toBytes(snapshotNameAsString);
/**
* Verify that adding data to original table or clone table doesn't affect other table.
*/
private void runTestSnapshotAppendIndependent() throws Exception {
try (Table clonedTable = UTIL.getConnection().getTable(cloneTableName)) {
final int clonedTableRowCount = countRows(clonedTable);
SnapshotTestingUtils.createSnapshotAndValidate(admin, localTableName, TEST_FAM_STR,
snapshotNameAsString, rootDir, fs, online);
Assert.assertEquals(
"The line counts of original and cloned tables do not match after clone. ",
countOriginalTable, clonedTableRowCount);
if (!online) {
tryDisable(admin, localTableName);
}
TableName cloneTableName = TableName.valueOf("test-clone-" + localTableName);
admin.cloneSnapshot(snapshotName, cloneTableName);
// Attempt to add data to the test
Put p = new Put(Bytes.toBytes("new-row-" + System.currentTimeMillis()));
p.addColumn(TEST_FAM, Bytes.toBytes("someQualifier"), Bytes.toBytes("someString"));
originalTable.put(p);
try (Table clonedTable = UTIL.getConnection().getTable(cloneTableName)) {
// Verify that the new row is not in the restored table
Assert.assertEquals("The row count of the original table was not modified by the put",
countOriginalTable + 1, countRows(originalTable));
Assert.assertEquals(
"The row count of the cloned table changed as a result of addition to the original",
clonedTableRowCount, countRows(clonedTable));
// Make sure that all the regions are available before starting
UTIL.waitUntilAllRegionsAssigned(cloneTableName);
Put p2 = new Put(Bytes.toBytes("new-row-" + System.currentTimeMillis()));
p2.addColumn(TEST_FAM, Bytes.toBytes("someQualifier"), Bytes.toBytes("someString"));
clonedTable.put(p2);
final int clonedTableRowCount = countRows(clonedTable);
Assert.assertEquals(
"The line counts of original and cloned tables do not match after clone. ",
origTableRowCount, clonedTableRowCount);
// Attempt to add data to the test
final String rowKey = "new-row-" + System.currentTimeMillis();
Put p = new Put(Bytes.toBytes(rowKey));
p.addColumn(TEST_FAM, Bytes.toBytes("someQualifier"), Bytes.toBytes("someString"));
original.put(p);
// Verify that it is not present in the original table
Assert.assertEquals("The row count of the original table was not modified by the put",
origTableRowCount + 1, countRows(original));
Assert.assertEquals(
"The row count of the cloned table changed as a result of addition to the original",
clonedTableRowCount, countRows(clonedTable));
p = new Put(Bytes.toBytes(rowKey));
p.addColumn(TEST_FAM, Bytes.toBytes("someQualifier"), Bytes.toBytes("someString"));
clonedTable.put(p);
// Verify that the new family is not in the restored table's description
Assert.assertEquals(
"The row count of the original table was modified by the put to the clone",
origTableRowCount + 1, countRows(original));
Assert.assertEquals("The row count of the cloned table was not modified by the put",
clonedTableRowCount + 1, countRows(clonedTable));
}
// Verify that the row is not added to the original table.
Assert.assertEquals(
"The row count of the original table was modified by the put to the clone",
countOriginalTable + 1, countRows(originalTable));
Assert.assertEquals("The row count of the cloned table was not modified by the put",
clonedTableRowCount + 1, countRows(clonedTable));
}
}
/*
* Take a snapshot of a table, do a split, and verify that this only affects one table
* @param online - Whether the table is online or not during the snapshot
/**
* Do a split, and verify that this only affects one table
*/
private void runTestRegionOperationsIndependent(boolean online) throws Exception {
FileSystem fs = UTIL.getHBaseCluster().getMaster().getMasterFileSystem().getFileSystem();
Path rootDir = UTIL.getHBaseCluster().getMaster().getMasterFileSystem().getRootDir();
// Create a table
Admin admin = UTIL.getHBaseAdmin();
final long startTime = System.currentTimeMillis();
final TableName localTableName =
TableName.valueOf(STRING_TABLE_NAME + startTime);
Table original = createTable(localTableName, TEST_FAM);
loadData(original, TEST_FAM);
final int loadedTableCount = countRows(original);
System.out.println("Original table has: " + loadedTableCount + " rows");
final String snapshotNameAsString = "snapshot_" + localTableName;
// Create a snapshot
SnapshotTestingUtils.createSnapshotAndValidate(admin, localTableName, TEST_FAM_STR,
snapshotNameAsString, rootDir, fs, online);
if (!online) {
tryDisable(admin, localTableName);
}
TableName cloneTableName = TableName.valueOf("test-clone-" + localTableName);
// Clone the snapshot
byte[] snapshotName = Bytes.toBytes(snapshotNameAsString);
admin.cloneSnapshot(snapshotName, cloneTableName);
private void runTestRegionOperationsIndependent() throws Exception {
// Verify that region information is the same pre-split
((ClusterConnection) UTIL.getConnection()).clearRegionCache();
List<HRegionInfo> originalTableHRegions = admin.getTableRegions(localTableName);
List<HRegionInfo> originalTableHRegions = admin.getTableRegions(originalTableName);
final int originalRegionCount = originalTableHRegions.size();
final int cloneTableRegionCount = admin.getTableRegions(cloneTableName).size();
Assert.assertEquals(
"The number of regions in the cloned table is different than in the original table.",
originalRegionCount, cloneTableRegionCount);
"The number of regions in the cloned table is different than in the original table.",
originalRegionCount, cloneTableRegionCount);
// Split a region on the parent table
admin.splitRegion(originalTableHRegions.get(0).getRegionName());
waitOnSplit(UTIL.getConnection(), original, originalRegionCount);
waitOnSplit(UTIL.getConnection(), originalTable, originalRegionCount);
// Verify that the cloned table region is not split
final int cloneTableRegionCount2 = admin.getTableRegions(cloneTableName).size();
Assert.assertEquals(
"The number of regions in the cloned table changed though none of its regions were split.",
cloneTableRegionCount, cloneTableRegionCount2);
"The number of regions in the cloned table changed though none of its regions were split.",
cloneTableRegionCount, cloneTableRegionCount2);
}
/*
* Take a snapshot of a table, add metadata, and verify that this only
* affects one table
* @param online - Whether the table is online or not during the snapshot
/**
* Add metadata, and verify that this only affects one table
*/
private void runTestSnapshotMetadataChangesIndependent(boolean online) throws Exception {
FileSystem fs = UTIL.getHBaseCluster().getMaster().getMasterFileSystem().getFileSystem();
Path rootDir = UTIL.getHBaseCluster().getMaster().getMasterFileSystem().getRootDir();
// Create a table
Admin admin = UTIL.getHBaseAdmin();
final long startTime = System.currentTimeMillis();
final TableName localTableName =
TableName.valueOf(STRING_TABLE_NAME + startTime);
Table original = createTable(localTableName, TEST_FAM);
loadData(original, TEST_FAM);
final String snapshotNameAsString = "snapshot_" + localTableName;
// Create a snapshot
SnapshotTestingUtils.createSnapshotAndValidate(admin, localTableName, TEST_FAM_STR,
snapshotNameAsString, rootDir, fs, online);
if (!online) {
tryDisable(admin, localTableName);
}
TableName cloneTableName = TableName.valueOf("test-clone-" + localTableName);
// Clone the snapshot
byte[] snapshotName = Bytes.toBytes(snapshotNameAsString);
admin.cloneSnapshot(snapshotName, cloneTableName);
private void runTestSnapshotMetadataChangesIndependent() throws Exception {
// Add a new column family to the original table
byte[] TEST_FAM_2 = Bytes.toBytes("fam2");
HColumnDescriptor hcd = new HColumnDescriptor(TEST_FAM_2);
tryDisable(admin, localTableName);
admin.addColumn(localTableName, hcd);
admin.disableTable(originalTableName);
admin.addColumn(originalTableName, hcd);
// Verify that it is not in the snapshot
admin.enableTable(localTableName);
UTIL.waitTableAvailable(localTableName);
admin.enableTable(originalTableName);
UTIL.waitTableAvailable(originalTableName);
// get a description of the cloned table
// get a list of its families
// assert that the family is there
HTableDescriptor originalTableDescriptor = original.getTableDescriptor();
HTableDescriptor originalTableDescriptor = originalTable.getTableDescriptor();
HTableDescriptor clonedTableDescriptor = admin.getTableDescriptor(cloneTableName);
Assert.assertTrue("The original family was not found. There is something wrong. ",
originalTableDescriptor.hasFamily(TEST_FAM));
originalTableDescriptor.hasFamily(TEST_FAM));
Assert.assertTrue("The original family was not found in the clone. There is something wrong. ",
clonedTableDescriptor.hasFamily(TEST_FAM));
clonedTableDescriptor.hasFamily(TEST_FAM));
Assert.assertTrue("The new family was not found. ",
originalTableDescriptor.hasFamily(TEST_FAM_2));
originalTableDescriptor.hasFamily(TEST_FAM_2));
Assert.assertTrue("The new family was not found. ",
!clonedTableDescriptor.hasFamily(TEST_FAM_2));
!clonedTableDescriptor.hasFamily(TEST_FAM_2));
}
private void tryDisable(Admin admin, TableName localTableName) throws IOException {
int offlineRetry = 0;
while ( offlineRetry < 5 && admin.isTableEnabled(localTableName)) {
try {
admin.disableTable(localTableName);
} catch (IOException ioe) {
LOG.warn("Error disabling the table", ioe);
}
offlineRetry ++;
}
}
/*
* Take a snapshot of a table, add data, and verify that deleting the snapshot does not affect
* either table.
* @param online - Whether the table is online or not during the snapshot
/**
* Verify that deleting the snapshot does not affect either table.
*/
private void runTestSnapshotDeleteIndependent(boolean online) throws Exception {
FileSystem fs = UTIL.getHBaseCluster().getMaster().getMasterFileSystem().getFileSystem();
Path rootDir = UTIL.getHBaseCluster().getMaster().getMasterFileSystem().getRootDir();
final Admin admin = UTIL.getHBaseAdmin();
final long startTime = System.currentTimeMillis();
final TableName localTableName =
TableName.valueOf(STRING_TABLE_NAME + startTime);
try (Table original = createTable(localTableName, TEST_FAM)) {
loadData(original, TEST_FAM);
}
// Take a snapshot
final String snapshotNameAsString = "snapshot_" + localTableName;
byte[] snapshotName = Bytes.toBytes(snapshotNameAsString);
SnapshotTestingUtils.createSnapshotAndValidate(admin, localTableName, TEST_FAM_STR,
snapshotNameAsString, rootDir, fs, online);
if (!online) {
tryDisable(admin, localTableName);
}
TableName cloneTableName = TableName.valueOf("test-clone-" + localTableName);
admin.cloneSnapshot(snapshotName, cloneTableName);
UTIL.waitUntilAllRegionsAssigned(cloneTableName);
private void runTestSnapshotDeleteIndependent() throws Exception {
// Ensure the original table does not reference the HFiles anymore
admin.majorCompact(localTableName);
admin.majorCompact(originalTableName);
// Deleting the snapshot used to break the cloned table by deleting in-use HFiles
admin.deleteSnapshot(snapshotName);
@ -452,7 +366,7 @@ public class TestSnapshotCloneIndependence {
Thread.sleep(5000);
} while (!admin.listSnapshots(snapshotNameAsString).isEmpty());
try (Table original = UTIL.getConnection().getTable(localTableName)) {
try (Table original = UTIL.getConnection().getTable(originalTableName)) {
try (Table clonedTable = UTIL.getConnection().getTable(cloneTableName)) {
// Verify that all regions of both tables are readable
final int origTableRowCount = countRows(original);
@ -463,7 +377,7 @@ public class TestSnapshotCloneIndependence {
}
protected Table createTable(final TableName table, byte[] family) throws Exception {
Table t = UTIL.createTable(table, family);
Table t = UTIL.createTable(table, family);
// Wait for everything to be ready with the table
UTIL.waitUntilAllRegionsAssigned(table);
@ -471,11 +385,11 @@ public class TestSnapshotCloneIndependence {
return t;
}
protected void loadData(final Table table, byte[]... families) throws Exception {
UTIL.loadTable(table, families);
public void loadData(final Table table, byte[]... families) throws Exception {
UTIL.loadTable(originalTable, TEST_FAM);
}
protected int countRows(final Table table, final byte[]... families) throws Exception {
return UTIL.countRows(table, families);
}
}
}