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* 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.
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package org.apache.hadoop.hbase.coprocessor.example;
import static org.junit.Assert.assertEquals;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.HBaseTestingUtility;
import org.apache.hadoop.hbase.HColumnDescriptor;
import org.apache.hadoop.hbase.HTableDescriptor;
import org.apache.hadoop.hbase.MediumTests;
import org.apache.hadoop.hbase.client.Get;
import org.apache.hadoop.hbase.client.HConnectionManager;
import org.apache.hadoop.hbase.client.HTable;
import org.apache.hadoop.hbase.client.Put;
import org.apache.hadoop.hbase.client.Result;
import org.apache.hadoop.hbase.coprocessor.CoprocessorHost;
import org.apache.hadoop.hbase.util.Bytes;
import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;
import org.apache.hadoop.hbase.zookeeper.ZKUtil;
import org.apache.hadoop.hbase.zookeeper.ZooKeeperWatcher;
import org.apache.zookeeper.ZooKeeper;
import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.junit.Test;
import org.junit.experimental.categories.Category;
@Category(MediumTests.class)
public class TestZooKeeperScanPolicyObserver {
private static final Log LOG = LogFactory.getLog(TestZooKeeperScanPolicyObserver.class);
private final static HBaseTestingUtility TEST_UTIL = new HBaseTestingUtility();
private static final byte[] F = Bytes.toBytes("fam");
private static final byte[] Q = Bytes.toBytes("qual");
private static final byte[] R = Bytes.toBytes("row");
@BeforeClass
public static void setUpBeforeClass() throws Exception {
// Test we can first start the ZK cluster by itself
Configuration conf = TEST_UTIL.getConfiguration();
conf.setStrings(CoprocessorHost.REGION_COPROCESSOR_CONF_KEY,
ZooKeeperScanPolicyObserver.class.getName());
TEST_UTIL.startMiniZKCluster();
TEST_UTIL.startMiniCluster();
}
@AfterClass
public static void tearDownAfterClass() throws Exception {
TEST_UTIL.shutdownMiniCluster();
}
@Test
public void testScanPolicyObserver() throws Exception {
byte[] tableName = Bytes.toBytes("testScanPolicyObserver");
HTableDescriptor desc = new HTableDescriptor(tableName);
HColumnDescriptor hcd = new HColumnDescriptor(F)
.setMaxVersions(10)
.setTimeToLive(1);
desc.addFamily(hcd);
TEST_UTIL.getHBaseAdmin().createTable(desc);
HTable t = new HTable(new Configuration(TEST_UTIL.getConfiguration()), tableName);
long now = EnvironmentEdgeManager.currentTimeMillis();
ZooKeeperWatcher zkw = HConnectionManager.getConnection(TEST_UTIL.getConfiguration())
.getZooKeeperWatcher();
ZooKeeper zk = zkw.getRecoverableZooKeeper().getZooKeeper();
ZKUtil.createWithParents(zkw, ZooKeeperScanPolicyObserver.node);
// let's say test last backup was 1h ago
// using plain ZK here, because RecoverableZooKeeper add extra encoding to the data
zk.setData(ZooKeeperScanPolicyObserver.node, Bytes.toBytes(now - 3600*1000), -1);
LOG.debug("Set time: "+Bytes.toLong(Bytes.toBytes(now - 3600*1000)));
// sleep for 1s to give the ZK change a chance to reach the watcher in the observer.
// TODO: Better to wait for the data to be propagated
Thread.sleep(1000);
long ts = now - 2000;
Put p = new Put(R);
p.add(F, Q, ts, Q);
t.put(p);
p = new Put(R);
p.add(F, Q, ts+1, Q);
t.put(p);
// these two should be expired but for the override
// (their ts was 2s in the past)
Get g = new Get(R);
g.setMaxVersions(10);
Result r = t.get(g);
// still there?
assertEquals(2, r.size());
TEST_UTIL.flush(tableName);
TEST_UTIL.compact(tableName, true);
g = new Get(R);
g.setMaxVersions(10);
r = t.get(g);
// still there?
assertEquals(2, r.size());
zk.setData(ZooKeeperScanPolicyObserver.node, Bytes.toBytes(now), -1);
LOG.debug("Set time: "+now);
TEST_UTIL.compact(tableName, true);
g = new Get(R);
g.setMaxVersions(10);
r = t.get(g);
// should be gone now
assertEquals(0, r.size());
t.close();
}
}