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.HBaseTestingUtil;
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  @Override
048  protected String getClusterKey(HBaseTestingUtil util) throws Exception {
049    // in this test we will restart the peer cluster, and the master address will be changed, so we
050    // need to use zk based connection uri
051    return util.getZkConnectionURI();
052  }
053
054  /**
055   * Test disabling an inactive peer. Add a peer which is inactive, trying to insert, disable the
056   * peer, then activate the peer and make sure nothing is replicated. In Addition, enable the peer
057   * and check the updates are replicated.
058   */
059  @Test
060  public void testDisableInactivePeer() throws Exception {
061    UTIL2.shutdownMiniHBaseCluster();
062
063    byte[] rowkey = Bytes.toBytes("disable inactive peer");
064    Put put = new Put(rowkey);
065    put.addColumn(famName, row, row);
066    htable1.put(put);
067
068    // wait for the sleep interval of the master cluster to become long
069    Thread.sleep(SLEEP_TIME * NB_RETRIES);
070
071    // disable and start the peer
072    hbaseAdmin.disableReplicationPeer("2");
073    restartTargetHBaseCluster(2);
074    Get get = new Get(rowkey);
075    for (int i = 0; i < NB_RETRIES; i++) {
076      Result res = htable2.get(get);
077      if (res.size() >= 1) {
078        fail("Replication wasn't disabled");
079      } else {
080        LOG.info("Row not replicated, let's wait a bit more...");
081        Thread.sleep(SLEEP_TIME);
082      }
083    }
084
085    // Test enable replication
086    hbaseAdmin.enableReplicationPeer("2");
087    // wait since the sleep interval would be long
088    Thread.sleep(SLEEP_TIME * NB_RETRIES);
089    for (int i = 0; i < NB_RETRIES; i++) {
090      Result res = htable2.get(get);
091      if (res.isEmpty()) {
092        LOG.info("Row not available");
093        Thread.sleep(SLEEP_TIME * NB_RETRIES);
094      } else {
095        assertArrayEquals(row, res.value());
096        return;
097      }
098    }
099    fail("Waited too much time for put replication");
100  }
101}