/**
* 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.
*/
package org.apache.hadoop.hbase.master;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertTrue;
import java.io.IOException;
import java.util.List;
import org.apache.hadoop.hbase.HBaseTestingUtility;
import org.apache.hadoop.hbase.HConstants;
import org.apache.hadoop.hbase.MiniHBaseCluster;
import org.apache.hadoop.hbase.NamespaceDescriptor;
import org.apache.hadoop.hbase.TableName;
import org.apache.hadoop.hbase.client.HTable;
import org.apache.hadoop.hbase.client.Put;
import org.apache.hadoop.hbase.regionserver.HRegion;
import org.apache.hadoop.hbase.regionserver.HRegionServer;
import org.apache.hadoop.hbase.testclassification.MediumTests;
import org.apache.hadoop.hbase.util.Bytes;
import org.apache.hadoop.hbase.util.JVMClusterUtil;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.junit.experimental.categories.Category;
/**
* Trivial test to confirm that we can get last flushed sequence id by encodedRegionName. See
* HBASE-12715.
*/
@Category(MediumTests.class)
public class TestGetLastFlushedSequenceId {
private final HBaseTestingUtility testUtil = new HBaseTestingUtility();
private final TableName tableName = TableName.valueOf(getClass().getSimpleName(), "test");
private final byte[] family = Bytes.toBytes("f1");
private final byte[][] families = new byte[][] { family };
@Before
public void setUp() throws Exception {
testUtil.getConfiguration().setInt("hbase.regionserver.msginterval", 1000);
testUtil.startMiniCluster(1, 1);
}
@After
public void tearDown() throws Exception {
testUtil.shutdownMiniCluster();
}
@Test
public void test() throws IOException, InterruptedException {
testUtil.getHBaseAdmin().createNamespace(
NamespaceDescriptor.create(tableName.getNamespaceAsString()).build());
HTable table = testUtil.createTable(tableName, families);
table.put(new Put(Bytes.toBytes("k")).add(family, Bytes.toBytes("q"), Bytes.toBytes("v")));
table.flushCommits();
MiniHBaseCluster cluster = testUtil.getMiniHBaseCluster();
List<JVMClusterUtil.RegionServerThread> rsts = cluster.getRegionServerThreads();
HRegion region = null;
for (int i = 0; i < cluster.getRegionServerThreads().size(); i++) {
HRegionServer hrs = rsts.get(i).getRegionServer();
for (HRegion r : hrs.getOnlineRegions(tableName)) {
region = r;
break;
}
}
assertNotNull(region);
Thread.sleep(2000);
assertEquals(
HConstants.NO_SEQNUM,
testUtil.getHBaseCluster().getMaster()
.getLastSequenceId(region.getRegionInfo().getEncodedNameAsBytes()));
testUtil.getHBaseAdmin().flush(tableName);
Thread.sleep(2000);
assertTrue(testUtil.getHBaseCluster().getMaster()
.getLastSequenceId(region.getRegionInfo().getEncodedNameAsBytes()) > 0);
table.close();
}
}