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.regionserver;
019
020import static org.junit.jupiter.api.Assertions.assertEquals;
021import static org.junit.jupiter.api.Assertions.assertTrue;
022
023import java.io.IOException;
024import org.apache.hadoop.conf.Configuration;
025import org.apache.hadoop.fs.FileSystem;
026import org.apache.hadoop.fs.Path;
027import org.apache.hadoop.hbase.Cell;
028import org.apache.hadoop.hbase.CellUtil;
029import org.apache.hadoop.hbase.HBaseTestingUtil;
030import org.apache.hadoop.hbase.HConstants;
031import org.apache.hadoop.hbase.TableName;
032import org.apache.hadoop.hbase.client.ColumnFamilyDescriptorBuilder;
033import org.apache.hadoop.hbase.client.Durability;
034import org.apache.hadoop.hbase.client.Increment;
035import org.apache.hadoop.hbase.client.RegionInfo;
036import org.apache.hadoop.hbase.client.RegionInfoBuilder;
037import org.apache.hadoop.hbase.client.Result;
038import org.apache.hadoop.hbase.client.TableDescriptor;
039import org.apache.hadoop.hbase.client.TableDescriptorBuilder;
040import org.apache.hadoop.hbase.testclassification.RegionServerTests;
041import org.apache.hadoop.hbase.testclassification.SmallTests;
042import org.apache.hadoop.hbase.util.Bytes;
043import org.junit.jupiter.api.Tag;
044import org.junit.jupiter.api.Test;
045import org.junit.jupiter.api.TestInfo;
046
047@Tag(RegionServerTests.TAG)
048@Tag(SmallTests.TAG)
049public class TestResettingCounters {
050
051  @Test
052  public void testResettingCounters(TestInfo testInfo) throws Exception {
053    HBaseTestingUtil htu = new HBaseTestingUtil();
054    Configuration conf = htu.getConfiguration();
055    FileSystem fs = FileSystem.get(conf);
056    byte[] table = Bytes.toBytes(testInfo.getTestMethod().get().getName());
057    byte[][] families =
058      new byte[][] { Bytes.toBytes("family1"), Bytes.toBytes("family2"), Bytes.toBytes("family3") };
059    int numQualifiers = 10;
060    byte[][] qualifiers = new byte[numQualifiers][];
061    for (int i = 0; i < numQualifiers; i++)
062      qualifiers[i] = Bytes.toBytes("qf" + i);
063    int numRows = 10;
064    byte[][] rows = new byte[numRows][];
065    for (int i = 0; i < numRows; i++)
066      rows[i] = Bytes.toBytes("r" + i);
067
068    TableDescriptorBuilder builder = TableDescriptorBuilder.newBuilder(TableName.valueOf(table));
069    for (byte[] family : families) {
070      builder.setColumnFamily(ColumnFamilyDescriptorBuilder.of(family));
071    }
072    TableDescriptor tableDescriptor = builder.build();
073    RegionInfo hri = RegionInfoBuilder.newBuilder(tableDescriptor.getTableName()).build();
074    String testDir = htu.getDataTestDir() + "/TestResettingCounters/";
075    Path path = new Path(testDir);
076    if (fs.exists(path)) {
077      if (!fs.delete(path, true)) {
078        throw new IOException("Failed delete of " + path);
079      }
080    }
081    HRegion region = HBaseTestingUtil.createRegionAndWAL(hri, path, conf, tableDescriptor);
082    try {
083      Increment odd = new Increment(rows[0]);
084      odd.setDurability(Durability.SKIP_WAL);
085      Increment even = new Increment(rows[0]);
086      even.setDurability(Durability.SKIP_WAL);
087      Increment all = new Increment(rows[0]);
088      all.setDurability(Durability.SKIP_WAL);
089      for (int i = 0; i < numQualifiers; i++) {
090        if (i % 2 == 0) even.addColumn(families[0], qualifiers[i], 1);
091        else odd.addColumn(families[0], qualifiers[i], 1);
092        all.addColumn(families[0], qualifiers[i], 1);
093      }
094
095      // increment odd qualifiers 5 times and flush
096      for (int i = 0; i < 5; i++)
097        region.increment(odd, HConstants.NO_NONCE, HConstants.NO_NONCE);
098      region.flush(true);
099
100      // increment even qualifiers 5 times
101      for (int i = 0; i < 5; i++)
102        region.increment(even, HConstants.NO_NONCE, HConstants.NO_NONCE);
103
104      // increment all qualifiers, should have value=6 for all
105      Result result = region.increment(all, HConstants.NO_NONCE, HConstants.NO_NONCE);
106      assertEquals(numQualifiers, result.size());
107      Cell[] kvs = result.rawCells();
108      for (int i = 0; i < kvs.length; i++) {
109        System.out.println(kvs[i].toString());
110        assertTrue(CellUtil.matchingQualifier(kvs[i], qualifiers[i]));
111        assertEquals(6, Bytes.toLong(CellUtil.cloneValue(kvs[i])));
112      }
113    } finally {
114      HBaseTestingUtil.closeRegionAndWAL(region);
115    }
116    HBaseTestingUtil.closeRegionAndWAL(region);
117  }
118
119}