001/**
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *     http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018package org.apache.hadoop.hbase.replication;
019
020import static org.junit.Assert.assertArrayEquals;
021import static org.junit.Assert.fail;
022
023import org.apache.hadoop.hbase.HBaseClassTestRule;
024import org.apache.hadoop.hbase.client.Get;
025import org.apache.hadoop.hbase.client.Put;
026import org.apache.hadoop.hbase.client.Result;
027import org.apache.hadoop.hbase.testclassification.LargeTests;
028import org.apache.hadoop.hbase.testclassification.ReplicationTests;
029import org.apache.hadoop.hbase.util.Bytes;
030import org.junit.ClassRule;
031import org.junit.Test;
032import org.junit.experimental.categories.Category;
033import org.slf4j.Logger;
034import org.slf4j.LoggerFactory;
035
036@Category({ReplicationTests.class, LargeTests.class})
037public class TestReplicationDisableInactivePeer extends TestReplicationBase {
038
039  @ClassRule
040  public static final HBaseClassTestRule CLASS_RULE =
041      HBaseClassTestRule.forClass(TestReplicationDisableInactivePeer.class);
042
043  private static final Logger LOG =
044      LoggerFactory.getLogger(TestReplicationDisableInactivePeer.class);
045
046  /**
047   * Test disabling an inactive peer. Add a peer which is inactive, trying to
048   * insert, disable the peer, then activate the peer and make sure nothing is
049   * replicated. In Addition, enable the peer and check the updates are
050   * replicated.
051   *
052   * @throws Exception
053   */
054  @Test
055  public void testDisableInactivePeer() throws Exception {
056    UTIL2.shutdownMiniHBaseCluster();
057
058    byte[] rowkey = Bytes.toBytes("disable inactive peer");
059    Put put = new Put(rowkey);
060    put.addColumn(famName, row, row);
061    htable1.put(put);
062
063    // wait for the sleep interval of the master cluster to become long
064    Thread.sleep(SLEEP_TIME * NB_RETRIES);
065
066    // disable and start the peer
067    hbaseAdmin.disableReplicationPeer("2");
068    restartTargetHBaseCluster(2);
069    Get get = new Get(rowkey);
070    for (int i = 0; i < NB_RETRIES; i++) {
071      Result res = htable2.get(get);
072      if (res.size() >= 1) {
073        fail("Replication wasn't disabled");
074      } else {
075        LOG.info("Row not replicated, let's wait a bit more...");
076        Thread.sleep(SLEEP_TIME);
077      }
078    }
079
080    // Test enable replication
081    admin.enablePeer("2");
082    // wait since the sleep interval would be long
083    Thread.sleep(SLEEP_TIME * NB_RETRIES);
084    for (int i = 0; i < NB_RETRIES; i++) {
085      Result res = htable2.get(get);
086      if (res.isEmpty()) {
087        LOG.info("Row not available");
088        Thread.sleep(SLEEP_TIME * NB_RETRIES);
089      } else {
090        assertArrayEquals(row, res.value());
091        return;
092      }
093    }
094    fail("Waited too much time for put replication");
095  }
096}