001/*
002 *
003 * Licensed to the Apache Software Foundation (ASF) under one
004 * or more contributor license agreements.  See the NOTICE file
005 * distributed with this work for additional information
006 * regarding copyright ownership.  The ASF licenses this file
007 * to you under the Apache License, Version 2.0 (the
008 * "License"); you may not use this file except in compliance
009 * with the License.  You may obtain a copy of the License at
010 *
011 *     http://www.apache.org/licenses/LICENSE-2.0
012 *
013 * Unless required by applicable law or agreed to in writing, software
014 * distributed under the License is distributed on an "AS IS" BASIS,
015 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
016 * See the License for the specific language governing permissions and
017 * limitations under the License.
018 */
019package org.apache.hadoop.hbase.replication;
020
021import static org.junit.Assert.assertArrayEquals;
022import static org.junit.Assert.fail;
023
024import org.apache.hadoop.hbase.HBaseClassTestRule;
025import org.apache.hadoop.hbase.client.Get;
026import org.apache.hadoop.hbase.client.Put;
027import org.apache.hadoop.hbase.client.Result;
028import org.apache.hadoop.hbase.testclassification.LargeTests;
029import org.apache.hadoop.hbase.testclassification.ReplicationTests;
030import org.apache.hadoop.hbase.util.Bytes;
031import org.junit.ClassRule;
032import org.junit.Test;
033import org.junit.experimental.categories.Category;
034import org.slf4j.Logger;
035import org.slf4j.LoggerFactory;
036
037@Category({ReplicationTests.class, LargeTests.class})
038public class TestReplicationDisableInactivePeer extends TestReplicationBase {
039
040  @ClassRule
041  public static final HBaseClassTestRule CLASS_RULE =
042      HBaseClassTestRule.forClass(TestReplicationDisableInactivePeer.class);
043
044  private static final Logger LOG =
045      LoggerFactory.getLogger(TestReplicationDisableInactivePeer.class);
046
047  /**
048   * Test disabling an inactive peer. Add a peer which is inactive, trying to
049   * insert, disable the peer, then activate the peer and make sure nothing is
050   * replicated. In Addition, enable the peer and check the updates are
051   * replicated.
052   *
053   * @throws Exception
054   */
055  @Test
056  public void testDisableInactivePeer() throws Exception {
057
058    // enabling and shutdown the peer
059    admin.enablePeer("2");
060    utility2.shutdownMiniHBaseCluster();
061
062    byte[] rowkey = Bytes.toBytes("disable inactive peer");
063    Put put = new Put(rowkey);
064    put.addColumn(famName, row, row);
065    htable1.put(put);
066
067    // wait for the sleep interval of the master cluster to become long
068    Thread.sleep(SLEEP_TIME * NB_RETRIES);
069
070    // disable and start the peer
071    admin.disablePeer("2");
072    utility2.startMiniHBaseCluster(1, 2);
073    Get get = new Get(rowkey);
074    for (int i = 0; i < NB_RETRIES; i++) {
075      Result res = htable2.get(get);
076      if (res.size() >= 1) {
077        fail("Replication wasn't disabled");
078      } else {
079        LOG.info("Row not replicated, let's wait a bit more...");
080        Thread.sleep(SLEEP_TIME);
081      }
082    }
083
084    // Test enable replication
085    admin.enablePeer("2");
086    // wait since the sleep interval would be long
087    Thread.sleep(SLEEP_TIME * NB_RETRIES);
088    for (int i = 0; i < NB_RETRIES; i++) {
089      Result res = htable2.get(get);
090      if (res.isEmpty()) {
091        LOG.info("Row not available");
092        Thread.sleep(SLEEP_TIME * NB_RETRIES);
093      } else {
094        assertArrayEquals(row, res.value());
095        return;
096      }
097    }
098    fail("Waited too much time for put replication");
099  }
100}