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 insert, disable the
048   * peer, then activate the peer and make sure nothing is replicated. In Addition, enable the peer
049   * and check the updates are replicated. n
050   */
051  @Test
052  public void testDisableInactivePeer() throws Exception {
053    UTIL2.shutdownMiniHBaseCluster();
054
055    byte[] rowkey = Bytes.toBytes("disable inactive peer");
056    Put put = new Put(rowkey);
057    put.addColumn(famName, row, row);
058    htable1.put(put);
059
060    // wait for the sleep interval of the master cluster to become long
061    Thread.sleep(SLEEP_TIME * NB_RETRIES);
062
063    // disable and start the peer
064    hbaseAdmin.disableReplicationPeer("2");
065    restartTargetHBaseCluster(2);
066    Get get = new Get(rowkey);
067    for (int i = 0; i < NB_RETRIES; i++) {
068      Result res = htable2.get(get);
069      if (res.size() >= 1) {
070        fail("Replication wasn't disabled");
071      } else {
072        LOG.info("Row not replicated, let's wait a bit more...");
073        Thread.sleep(SLEEP_TIME);
074      }
075    }
076
077    // Test enable replication
078    admin.enablePeer("2");
079    // wait since the sleep interval would be long
080    Thread.sleep(SLEEP_TIME * NB_RETRIES);
081    for (int i = 0; i < NB_RETRIES; i++) {
082      Result res = htable2.get(get);
083      if (res.isEmpty()) {
084        LOG.info("Row not available");
085        Thread.sleep(SLEEP_TIME * NB_RETRIES);
086      } else {
087        assertArrayEquals(row, res.value());
088        return;
089      }
090    }
091    fail("Waited too much time for put replication");
092  }
093}