hbase-server/src/test/java/org/apache/hadoop/hbase/replication/TestReplicationEditsDroppedWithDeletedTableCFs.java - hbase - Git at Google

 /**
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
  * distributed with this work for additional information
  * regarding copyright ownership.  The ASF licenses this file
  * to you under the Apache License, Version 2.0 (the
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
  *     http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
 package org.apache.hadoop.hbase.replication;

 import static org.apache.hadoop.hbase.HConstants.REPLICATION_SCOPE_GLOBAL;
 import static org.apache.hadoop.hbase.HConstants.ZOOKEEPER_ZNODE_PARENT;
 import static org.apache.hadoop.hbase.replication.regionserver.HBaseInterClusterReplicationEndpoint.REPLICATION_DROP_ON_DELETED_COLUMN_FAMILY_KEY;
 import static org.junit.Assert.fail;

 import java.io.IOException;
 import java.util.Arrays;
 import java.util.stream.Collectors;

 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.hbase.HBaseClassTestRule;
 import org.apache.hadoop.hbase.HBaseConfiguration;
 import org.apache.hadoop.hbase.HBaseTestingUtility;
 import org.apache.hadoop.hbase.TableName;
 import org.apache.hadoop.hbase.Waiter.Predicate;
 import org.apache.hadoop.hbase.client.Admin;
 import org.apache.hadoop.hbase.client.ColumnFamilyDescriptorBuilder;
 import org.apache.hadoop.hbase.client.Get;
 import org.apache.hadoop.hbase.client.Put;
 import org.apache.hadoop.hbase.client.Result;
 import org.apache.hadoop.hbase.client.Table;
 import org.apache.hadoop.hbase.client.TableDescriptor;
 import org.apache.hadoop.hbase.client.TableDescriptorBuilder;
 import org.apache.hadoop.hbase.testclassification.LargeTests;
 import org.apache.hadoop.hbase.util.Bytes;
 import org.apache.hadoop.hbase.util.JVMClusterUtil;
 import org.apache.hadoop.hbase.zookeeper.MiniZooKeeperCluster;
 import org.junit.After;
 import org.junit.AfterClass;
 import org.junit.Before;
 import org.junit.BeforeClass;
 import org.junit.ClassRule;
 import org.junit.Test;
 import org.junit.experimental.categories.Category;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;

 @Category({ LargeTests.class })
 public class TestReplicationEditsDroppedWithDeletedTableCFs {

   @ClassRule
   public static final HBaseClassTestRule CLASS_RULE =
       HBaseClassTestRule.forClass(TestReplicationEditsDroppedWithDeletedTableCFs.class);

   private static final Logger LOG =
       LoggerFactory.getLogger(TestReplicationEditsDroppedWithDeletedTableCFs.class);

   private static Configuration conf1 = HBaseConfiguration.create();
   private static Configuration conf2 = HBaseConfiguration.create();

   protected static HBaseTestingUtility utility1;
   protected static HBaseTestingUtility utility2;

   private static Admin admin1;
   private static Admin admin2;

   private static final TableName TABLE = TableName.valueOf("table");
   private static final byte[] NORMAL_CF = Bytes.toBytes("normal_cf");
   private static final byte[] DROPPED_CF = Bytes.toBytes("dropped_cf");

   private static final byte[] ROW = Bytes.toBytes("row");
   private static final byte[] QUALIFIER = Bytes.toBytes("q");
   private static final byte[] VALUE = Bytes.toBytes("value");

   private static final String PEER_ID = "1";
   private static final long SLEEP_TIME = 1000;
   private static final int NB_RETRIES = 10;

   @BeforeClass
   public static void setUpBeforeClass() throws Exception {
     // Set true to filter replication edits for dropped table
     conf1.setBoolean(REPLICATION_DROP_ON_DELETED_COLUMN_FAMILY_KEY, true);
     conf1.set(ZOOKEEPER_ZNODE_PARENT, "/1");
     conf1.setInt("replication.source.nb.capacity", 1);
     utility1 = new HBaseTestingUtility(conf1);
     utility1.startMiniZKCluster();
     MiniZooKeeperCluster miniZK = utility1.getZkCluster();
     conf1 = utility1.getConfiguration();

     conf2 = HBaseConfiguration.create(conf1);
     conf2.set(ZOOKEEPER_ZNODE_PARENT, "/2");
     utility2 = new HBaseTestingUtility(conf2);
     utility2.setZkCluster(miniZK);

     utility1.startMiniCluster(1);
     utility2.startMiniCluster(1);

     admin1 = utility1.getAdmin();
     admin2 = utility2.getAdmin();
   }

   @AfterClass
   public static void tearDownAfterClass() throws Exception {
     utility2.shutdownMiniCluster();
     utility1.shutdownMiniCluster();
   }

   @Before
   public void setup() throws Exception {
     // Roll log
     for (JVMClusterUtil.RegionServerThread r : utility1.getHBaseCluster()
         .getRegionServerThreads()) {
       utility1.getAdmin().rollWALWriter(r.getRegionServer().getServerName());
     }
     // add peer
     ReplicationPeerConfig rpc = ReplicationPeerConfig.newBuilder()
         .setClusterKey(utility2.getClusterKey())
         .setReplicateAllUserTables(true).build();
     admin1.addReplicationPeer(PEER_ID, rpc);
     // create table
     createTable();
   }

   @After
   public void tearDown() throws Exception {
     // Remove peer
     admin1.removeReplicationPeer(PEER_ID);
     // Drop table
     admin1.disableTable(TABLE);
     admin1.deleteTable(TABLE);
     admin2.disableTable(TABLE);
     admin2.deleteTable(TABLE);
   }

   private void createTable() throws Exception {
     TableDescriptor desc = createTableDescriptor(NORMAL_CF, DROPPED_CF);
     admin1.createTable(desc);
     admin2.createTable(desc);
     utility1.waitUntilAllRegionsAssigned(desc.getTableName());
     utility2.waitUntilAllRegionsAssigned(desc.getTableName());
   }

   @Test
   public void testEditsDroppedWithDeleteCF() throws Exception {
     admin1.disableReplicationPeer(PEER_ID);

     try (Table table = utility1.getConnection().getTable(TABLE)) {
       Put put = new Put(ROW);
       put.addColumn(DROPPED_CF, QUALIFIER, VALUE);
       table.put(put);
     }

     deleteCf(admin1);
     deleteCf(admin2);

     admin1.enableReplicationPeer(PEER_ID);

     verifyReplicationProceeded();
   }

   @Test
   public void testEditsBehindDeleteCFTiming() throws Exception {
     admin1.disableReplicationPeer(PEER_ID);

     try (Table table = utility1.getConnection().getTable(TABLE)) {
       Put put = new Put(ROW);
       put.addColumn(DROPPED_CF, QUALIFIER, VALUE);
       table.put(put);
     }

     // Only delete cf from peer cluster
     deleteCf(admin2);

     admin1.enableReplicationPeer(PEER_ID);

     // the source table's cf still exists, replication should be stalled
     verifyReplicationStuck();
     deleteCf(admin1);
     // now the source table's cf is gone, replication should proceed, the
     // offending edits be dropped
     verifyReplicationProceeded();
   }

   private void verifyReplicationProceeded() throws Exception {
     try (Table table = utility1.getConnection().getTable(TABLE)) {
       Put put = new Put(ROW);
       put.addColumn(NORMAL_CF, QUALIFIER, VALUE);
       table.put(put);
     }
     utility2.waitFor(NB_RETRIES * SLEEP_TIME, (Predicate<Exception>) () -> {
       try (Table peerTable = utility2.getConnection().getTable(TABLE)) {
         Result result = peerTable.get(new Get(ROW).addColumn(NORMAL_CF, QUALIFIER));
         return result != null && !result.isEmpty()
             && Bytes.equals(VALUE, result.getValue(NORMAL_CF, QUALIFIER));
       }
     });
   }

   private void verifyReplicationStuck() throws Exception {
     try (Table table = utility1.getConnection().getTable(TABLE)) {
       Put put = new Put(ROW);
       put.addColumn(NORMAL_CF, QUALIFIER, VALUE);
       table.put(put);
     }
     try (Table peerTable = utility2.getConnection().getTable(TABLE)) {
       for (int i = 0; i < NB_RETRIES; i++) {
         Result result = peerTable.get(new Get(ROW).addColumn(NORMAL_CF, QUALIFIER));
         if (result != null && !result.isEmpty()) {
           fail("Edit should have been stuck behind dropped tables, but value is " + Bytes
               .toString(result.getValue(NORMAL_CF, QUALIFIER)));
         } else {
           LOG.info("Row not replicated, let's wait a bit more...");
           Thread.sleep(SLEEP_TIME);
         }
       }
     }
   }

   private TableDescriptor createTableDescriptor(byte[]... cfs) {
     return TableDescriptorBuilder.newBuilder(TABLE)
         .setColumnFamilies(Arrays.stream(cfs).map(cf ->
             ColumnFamilyDescriptorBuilder.newBuilder(cf).setScope(REPLICATION_SCOPE_GLOBAL).build())
             .collect(Collectors.toList())
         ).build();
   }

   private void deleteCf(Admin admin) throws IOException {
     TableDescriptor desc = createTableDescriptor(NORMAL_CF);
     admin.modifyTable(desc);
   }
 }
	/**
	* Licensed to the Apache Software Foundation (ASF) under one
	* or more contributor license agreements. See the NOTICE file
	* distributed with this work for additional information
	* regarding copyright ownership. The ASF licenses this file
	* to you under the Apache License, Version 2.0 (the
	* "License"); you may not use this file except in compliance
	* with the License. You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS,
	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	* See the License for the specific language governing permissions and
	* limitations under the License.
	*/
	package org.apache.hadoop.hbase.replication;

	import static org.apache.hadoop.hbase.HConstants.REPLICATION_SCOPE_GLOBAL;
	import static org.apache.hadoop.hbase.HConstants.ZOOKEEPER_ZNODE_PARENT;
	import static org.apache.hadoop.hbase.replication.regionserver.HBaseInterClusterReplicationEndpoint.REPLICATION_DROP_ON_DELETED_COLUMN_FAMILY_KEY;
	import static org.junit.Assert.fail;

	import java.io.IOException;
	import java.util.Arrays;
	import java.util.stream.Collectors;

	import org.apache.hadoop.conf.Configuration;
	import org.apache.hadoop.hbase.HBaseClassTestRule;
	import org.apache.hadoop.hbase.HBaseConfiguration;
	import org.apache.hadoop.hbase.HBaseTestingUtility;
	import org.apache.hadoop.hbase.TableName;
	import org.apache.hadoop.hbase.Waiter.Predicate;
	import org.apache.hadoop.hbase.client.Admin;
	import org.apache.hadoop.hbase.client.ColumnFamilyDescriptorBuilder;
	import org.apache.hadoop.hbase.client.Get;
	import org.apache.hadoop.hbase.client.Put;
	import org.apache.hadoop.hbase.client.Result;
	import org.apache.hadoop.hbase.client.Table;
	import org.apache.hadoop.hbase.client.TableDescriptor;
	import org.apache.hadoop.hbase.client.TableDescriptorBuilder;
	import org.apache.hadoop.hbase.testclassification.LargeTests;
	import org.apache.hadoop.hbase.util.Bytes;
	import org.apache.hadoop.hbase.util.JVMClusterUtil;
	import org.apache.hadoop.hbase.zookeeper.MiniZooKeeperCluster;
	import org.junit.After;
	import org.junit.AfterClass;
	import org.junit.Before;
	import org.junit.BeforeClass;
	import org.junit.ClassRule;
	import org.junit.Test;
	import org.junit.experimental.categories.Category;
	import org.slf4j.Logger;
	import org.slf4j.LoggerFactory;

	@Category({ LargeTests.class })
	public class TestReplicationEditsDroppedWithDeletedTableCFs {

	@ClassRule
	public static final HBaseClassTestRule CLASS_RULE =
	HBaseClassTestRule.forClass(TestReplicationEditsDroppedWithDeletedTableCFs.class);

	private static final Logger LOG =
	LoggerFactory.getLogger(TestReplicationEditsDroppedWithDeletedTableCFs.class);

	private static Configuration conf1 = HBaseConfiguration.create();
	private static Configuration conf2 = HBaseConfiguration.create();

	protected static HBaseTestingUtility utility1;
	protected static HBaseTestingUtility utility2;

	private static Admin admin1;
	private static Admin admin2;

	private static final TableName TABLE = TableName.valueOf("table");
	private static final byte[] NORMAL_CF = Bytes.toBytes("normal_cf");
	private static final byte[] DROPPED_CF = Bytes.toBytes("dropped_cf");

	private static final byte[] ROW = Bytes.toBytes("row");
	private static final byte[] QUALIFIER = Bytes.toBytes("q");
	private static final byte[] VALUE = Bytes.toBytes("value");

	private static final String PEER_ID = "1";
	private static final long SLEEP_TIME = 1000;
	private static final int NB_RETRIES = 10;

	@BeforeClass
	public static void setUpBeforeClass() throws Exception {
	// Set true to filter replication edits for dropped table
	conf1.setBoolean(REPLICATION_DROP_ON_DELETED_COLUMN_FAMILY_KEY, true);
	conf1.set(ZOOKEEPER_ZNODE_PARENT, "/1");
	conf1.setInt("replication.source.nb.capacity", 1);
	utility1 = new HBaseTestingUtility(conf1);
	utility1.startMiniZKCluster();
	MiniZooKeeperCluster miniZK = utility1.getZkCluster();
	conf1 = utility1.getConfiguration();

	conf2 = HBaseConfiguration.create(conf1);
	conf2.set(ZOOKEEPER_ZNODE_PARENT, "/2");
	utility2 = new HBaseTestingUtility(conf2);
	utility2.setZkCluster(miniZK);

	utility1.startMiniCluster(1);
	utility2.startMiniCluster(1);

	admin1 = utility1.getAdmin();
	admin2 = utility2.getAdmin();
	}

	@AfterClass
	public static void tearDownAfterClass() throws Exception {
	utility2.shutdownMiniCluster();
	utility1.shutdownMiniCluster();
	}

	@Before
	public void setup() throws Exception {
	// Roll log
	for (JVMClusterUtil.RegionServerThread r : utility1.getHBaseCluster()
	.getRegionServerThreads()) {
	utility1.getAdmin().rollWALWriter(r.getRegionServer().getServerName());
	}
	// add peer
	ReplicationPeerConfig rpc = ReplicationPeerConfig.newBuilder()
	.setClusterKey(utility2.getClusterKey())
	.setReplicateAllUserTables(true).build();
	admin1.addReplicationPeer(PEER_ID, rpc);
	// create table
	createTable();
	}

	@After
	public void tearDown() throws Exception {
	// Remove peer
	admin1.removeReplicationPeer(PEER_ID);
	// Drop table
	admin1.disableTable(TABLE);
	admin1.deleteTable(TABLE);
	admin2.disableTable(TABLE);
	admin2.deleteTable(TABLE);
	}

	private void createTable() throws Exception {
	TableDescriptor desc = createTableDescriptor(NORMAL_CF, DROPPED_CF);
	admin1.createTable(desc);
	admin2.createTable(desc);
	utility1.waitUntilAllRegionsAssigned(desc.getTableName());
	utility2.waitUntilAllRegionsAssigned(desc.getTableName());
	}

	@Test
	public void testEditsDroppedWithDeleteCF() throws Exception {
	admin1.disableReplicationPeer(PEER_ID);

	try (Table table = utility1.getConnection().getTable(TABLE)) {
	Put put = new Put(ROW);
	put.addColumn(DROPPED_CF, QUALIFIER, VALUE);
	table.put(put);
	}

	deleteCf(admin1);
	deleteCf(admin2);

	admin1.enableReplicationPeer(PEER_ID);

	verifyReplicationProceeded();
	}

	@Test
	public void testEditsBehindDeleteCFTiming() throws Exception {
	admin1.disableReplicationPeer(PEER_ID);

	try (Table table = utility1.getConnection().getTable(TABLE)) {
	Put put = new Put(ROW);
	put.addColumn(DROPPED_CF, QUALIFIER, VALUE);
	table.put(put);
	}

	// Only delete cf from peer cluster
	deleteCf(admin2);

	admin1.enableReplicationPeer(PEER_ID);

	// the source table's cf still exists, replication should be stalled
	verifyReplicationStuck();
	deleteCf(admin1);
	// now the source table's cf is gone, replication should proceed, the
	// offending edits be dropped
	verifyReplicationProceeded();
	}

	private void verifyReplicationProceeded() throws Exception {
	try (Table table = utility1.getConnection().getTable(TABLE)) {
	Put put = new Put(ROW);
	put.addColumn(NORMAL_CF, QUALIFIER, VALUE);
	table.put(put);
	}
	utility2.waitFor(NB_RETRIES * SLEEP_TIME, (Predicate<Exception>) () -> {
	try (Table peerTable = utility2.getConnection().getTable(TABLE)) {
	Result result = peerTable.get(new Get(ROW).addColumn(NORMAL_CF, QUALIFIER));
	return result != null && !result.isEmpty()
	&& Bytes.equals(VALUE, result.getValue(NORMAL_CF, QUALIFIER));
	}
	});
	}

	private void verifyReplicationStuck() throws Exception {
	try (Table table = utility1.getConnection().getTable(TABLE)) {
	Put put = new Put(ROW);
	put.addColumn(NORMAL_CF, QUALIFIER, VALUE);
	table.put(put);
	}
	try (Table peerTable = utility2.getConnection().getTable(TABLE)) {
	for (int i = 0; i < NB_RETRIES; i++) {
	Result result = peerTable.get(new Get(ROW).addColumn(NORMAL_CF, QUALIFIER));
	if (result != null && !result.isEmpty()) {
	fail("Edit should have been stuck behind dropped tables, but value is " + Bytes
	.toString(result.getValue(NORMAL_CF, QUALIFIER)));
	} else {
	LOG.info("Row not replicated, let's wait a bit more...");
	Thread.sleep(SLEEP_TIME);
	}
	}
	}
	}

	private TableDescriptor createTableDescriptor(byte[]... cfs) {
	return TableDescriptorBuilder.newBuilder(TABLE)
	.setColumnFamilies(Arrays.stream(cfs).map(cf ->
	ColumnFamilyDescriptorBuilder.newBuilder(cf).setScope(REPLICATION_SCOPE_GLOBAL).build())
	.collect(Collectors.toList())
	).build();
	}

	private void deleteCf(Admin admin) throws IOException {
	TableDescriptor desc = createTableDescriptor(NORMAL_CF);
	admin.modifyTable(desc);
	}
	}