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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.
*/
package org.apache.hadoop.hbase.regionserver;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import java.io.IOException;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.hbase.Cell;
import org.apache.hadoop.hbase.CellUtil;
import org.apache.hadoop.hbase.HBaseClassTestRule;
import org.apache.hadoop.hbase.HBaseTestingUtility;
import org.apache.hadoop.hbase.HConstants;
import org.apache.hadoop.hbase.TableName;
import org.apache.hadoop.hbase.client.ColumnFamilyDescriptorBuilder;
import org.apache.hadoop.hbase.client.Durability;
import org.apache.hadoop.hbase.client.Increment;
import org.apache.hadoop.hbase.client.RegionInfo;
import org.apache.hadoop.hbase.client.RegionInfoBuilder;
import org.apache.hadoop.hbase.client.Result;
import org.apache.hadoop.hbase.client.TableDescriptor;
import org.apache.hadoop.hbase.client.TableDescriptorBuilder;
import org.apache.hadoop.hbase.testclassification.RegionServerTests;
import org.apache.hadoop.hbase.testclassification.SmallTests;
import org.apache.hadoop.hbase.util.Bytes;
import org.junit.ClassRule;
import org.junit.Rule;
import org.junit.Test;
import org.junit.experimental.categories.Category;
import org.junit.rules.TestName;
@Category({RegionServerTests.class, SmallTests.class})
public class TestResettingCounters {
@ClassRule
public static final HBaseClassTestRule CLASS_RULE =
HBaseClassTestRule.forClass(TestResettingCounters.class);
@Rule
public TestName name = new TestName();
@Test
public void testResettingCounters() throws Exception {
HBaseTestingUtility htu = new HBaseTestingUtility();
Configuration conf = htu.getConfiguration();
FileSystem fs = FileSystem.get(conf);
byte [] table = Bytes.toBytes(name.getMethodName());
byte [][] families = new byte [][] {
Bytes.toBytes("family1"),
Bytes.toBytes("family2"),
Bytes.toBytes("family3")
};
int numQualifiers = 10;
byte [][] qualifiers = new byte [numQualifiers][];
for (int i=0; i<numQualifiers; i++) qualifiers[i] = Bytes.toBytes("qf" + i);
int numRows = 10;
byte [][] rows = new byte [numRows][];
for (int i=0; i<numRows; i++) rows[i] = Bytes.toBytes("r" + i);
TableDescriptorBuilder builder =
TableDescriptorBuilder.newBuilder(TableName.valueOf(table));
for (byte[] family : families) {
builder.setColumnFamily(
ColumnFamilyDescriptorBuilder.of(family));
}
TableDescriptor tableDescriptor = builder.build();
RegionInfo hri = RegionInfoBuilder.newBuilder(tableDescriptor.getTableName()).build();
String testDir = htu.getDataTestDir() + "/TestResettingCounters/";
Path path = new Path(testDir);
if (fs.exists(path)) {
if (!fs.delete(path, true)) {
throw new IOException("Failed delete of " + path);
}
}
HRegion region = HBaseTestingUtility.createRegionAndWAL(hri, path, conf, tableDescriptor);
try {
Increment odd = new Increment(rows[0]);
odd.setDurability(Durability.SKIP_WAL);
Increment even = new Increment(rows[0]);
even.setDurability(Durability.SKIP_WAL);
Increment all = new Increment(rows[0]);
all.setDurability(Durability.SKIP_WAL);
for (int i=0;i<numQualifiers;i++) {
if (i % 2 == 0) even.addColumn(families[0], qualifiers[i], 1);
else odd.addColumn(families[0], qualifiers[i], 1);
all.addColumn(families[0], qualifiers[i], 1);
}
// increment odd qualifiers 5 times and flush
for (int i=0;i<5;i++) region.increment(odd, HConstants.NO_NONCE, HConstants.NO_NONCE);
region.flush(true);
// increment even qualifiers 5 times
for (int i=0;i<5;i++) region.increment(even, HConstants.NO_NONCE, HConstants.NO_NONCE);
// increment all qualifiers, should have value=6 for all
Result result = region.increment(all, HConstants.NO_NONCE, HConstants.NO_NONCE);
assertEquals(numQualifiers, result.size());
Cell[] kvs = result.rawCells();
for (int i=0;i<kvs.length;i++) {
System.out.println(kvs[i].toString());
assertTrue(CellUtil.matchingQualifier(kvs[i], qualifiers[i]));
assertEquals(6, Bytes.toLong(CellUtil.cloneValue(kvs[i])));
}
} finally {
HBaseTestingUtility.closeRegionAndWAL(region);
}
HBaseTestingUtility.closeRegionAndWAL(region);
}
}