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HBASE-21158 Empty qualifier cell is always returned when using QualifierFilter

This commit is contained in:
Guangxu Cheng 2018-09-10 17:20:48 +08:00
parent b09dbb443e
commit 2aae247e3f
2 changed files with 167 additions and 5 deletions
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3
hbase-client/src/main/java/org/apache/hadoop/hbase/filter/QualifierFilter.java
View File

@ -78,12 +78,9 @@ public class QualifierFilter extends CompareFilter {
@Override
public ReturnCode filterCell(final Cell c) {
int qualifierLength = c.getQualifierLength();
if (qualifierLength > 0) {
if (compareQualifier(getCompareOperator(), this.comparator, c)) {
return ReturnCode.SKIP;
}
}
return ReturnCode.INCLUDE;
}

165
hbase-server/src/test/java/org/apache/hadoop/hbase/filter/TestQualifierFilterWithEmptyQualifier.java Normal file
View File

@ -0,0 +1,165 @@
/**
* 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.filter;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import org.apache.hadoop.hbase.Cell;
import org.apache.hadoop.hbase.CellComparator;
import org.apache.hadoop.hbase.CompareOperator;
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.Put;
import org.apache.hadoop.hbase.client.RegionInfo;
import org.apache.hadoop.hbase.client.RegionInfoBuilder;
import org.apache.hadoop.hbase.client.Scan;
import org.apache.hadoop.hbase.client.TableDescriptor;
import org.apache.hadoop.hbase.client.TableDescriptorBuilder;
import org.apache.hadoop.hbase.regionserver.HRegion;
import org.apache.hadoop.hbase.regionserver.InternalScanner;
import org.apache.hadoop.hbase.testclassification.FilterTests;
import org.apache.hadoop.hbase.testclassification.SmallTests;
import org.apache.hadoop.hbase.util.Bytes;
import org.junit.After;
import org.junit.Before;
import org.junit.ClassRule;
import org.junit.Rule;
import org.junit.Test;
import org.junit.experimental.categories.Category;
import org.junit.rules.TestName;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Test qualifierFilter with empty qualifier column
*/
@Category({FilterTests.class, SmallTests.class})
public class TestQualifierFilterWithEmptyQualifier {
private final static Logger LOG
= LoggerFactory.getLogger(TestQualifierFilterWithEmptyQualifier.class);
@ClassRule
public static final HBaseClassTestRule CLASS_RULE =
HBaseClassTestRule.forClass(TestQualifierFilterWithEmptyQualifier.class);
private final static HBaseTestingUtility TEST_UTIL = new HBaseTestingUtility();
private HRegion region;
@Rule
public TestName name = new TestName();
private static final byte[][] ROWS =
{ Bytes.toBytes("testRowOne-0"), Bytes.toBytes("testRowOne-1"),
Bytes.toBytes("testRowOne-2"), Bytes.toBytes("testRowOne-3") };
private static final byte[] FAMILY = Bytes.toBytes("testFamily");
private static final byte[][] QUALIFIERS = {HConstants.EMPTY_BYTE_ARRAY,
Bytes.toBytes("testQualifier")};
private static final byte[] VALUE = Bytes.toBytes("testValueOne");
private long numRows = (long) ROWS.length;
@Before
public void setUp() throws Exception {
TableDescriptor htd = TableDescriptorBuilder
.newBuilder(TableName.valueOf("TestQualifierFilter"))
.setColumnFamily(ColumnFamilyDescriptorBuilder.newBuilder(FAMILY).build()).build();
RegionInfo info = RegionInfoBuilder.newBuilder(htd.getTableName()).build();
this.region = HBaseTestingUtility
.createRegionAndWAL(info, TEST_UTIL.getDataTestDir(), TEST_UTIL.getConfiguration(), htd);
// Insert data
for (byte[] ROW : ROWS) {
Put p = new Put(ROW);
p.setDurability(Durability.SKIP_WAL);
for (byte[] QUALIFIER : QUALIFIERS) {
p.addColumn(FAMILY, QUALIFIER, VALUE);
}
this.region.put(p);
}
// Flush
this.region.flush(true);
}
@After
public void tearDown() throws Exception {
HBaseTestingUtility.closeRegionAndWAL(region);
}
@Test
public void testQualifierFilterWithEmptyColumn() throws IOException {
long colsPerRow = 2;
long expectedKeys = colsPerRow / 2;
Filter f = new QualifierFilter(CompareOperator.EQUAL,
new BinaryComparator(QUALIFIERS[0]));
Scan s = new Scan();
s.setFilter(f);
verifyScanNoEarlyOut(s, this.numRows, expectedKeys);
expectedKeys = colsPerRow / 2;
f = new QualifierFilter(CompareOperator.EQUAL,
new BinaryComparator(QUALIFIERS[1]));
s = new Scan();
s.setFilter(f);
verifyScanNoEarlyOut(s, this.numRows, expectedKeys);
expectedKeys = colsPerRow / 2;
f = new QualifierFilter(CompareOperator.GREATER,
new BinaryComparator(QUALIFIERS[0]));
s = new Scan();
s.setFilter(f);
verifyScanNoEarlyOut(s, this.numRows, expectedKeys);
expectedKeys = colsPerRow;
f = new QualifierFilter(CompareOperator.GREATER_OR_EQUAL,
new BinaryComparator(QUALIFIERS[0]));
s = new Scan();
s.setFilter(f);
verifyScanNoEarlyOut(s, this.numRows, expectedKeys);
}
private void verifyScanNoEarlyOut(Scan s, long expectedRows,
long expectedKeys)
throws IOException {
InternalScanner scanner = this.region.getScanner(s);
List<Cell> results = new ArrayList<>();
int i = 0;
for (boolean done = true; done; i++) {
done = scanner.next(results);
Arrays.sort(results.toArray(new Cell[results.size()]),
CellComparator.getInstance());
LOG.info("counter=" + i + ", " + results);
if(results.isEmpty()) {
break;
}
assertTrue("Scanned too many rows! Only expected " + expectedRows +
" total but already scanned " + (i+1), expectedRows > i);
assertEquals("Expected " + expectedKeys + " keys per row but " +
"returned " + results.size(), expectedKeys, results.size());
results.clear();
}
assertEquals("Expected " + expectedRows + " rows but scanned " + i +
" rows", expectedRows, i);
}
}