| /* |
| * 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.cassandra.db.compaction; |
| |
| import java.util.Collection; |
| |
| import org.junit.BeforeClass; |
| import org.junit.Test; |
| |
| import org.apache.cassandra.cql3.CQLTester; |
| import org.apache.cassandra.db.ColumnFamilyStore; |
| import org.apache.cassandra.db.Keyspace; |
| import org.apache.cassandra.db.rows.Cell; |
| import org.apache.cassandra.db.rows.Row; |
| import org.apache.cassandra.db.rows.Unfiltered; |
| import org.apache.cassandra.db.rows.UnfilteredRowIterator; |
| import org.apache.cassandra.io.sstable.ISSTableScanner; |
| import org.apache.cassandra.io.sstable.format.SSTableReader; |
| |
| import static org.junit.Assert.assertEquals; |
| |
| public class NeverPurgeTest extends CQLTester |
| { |
| @BeforeClass |
| public static void setUpClass() // method name must match the @BeforeClass annotated method in CQLTester |
| { |
| System.setProperty("cassandra.never_purge_tombstones", "true"); |
| CQLTester.setUpClass(); |
| } |
| |
| @Test |
| public void neverPurgeCellTombstoneTest() throws Throwable |
| { |
| testHelper("UPDATE %s SET c = null WHERE a=1 AND b=2"); |
| } |
| |
| @Test |
| public void neverPurgeRowTombstoneTest() throws Throwable |
| { |
| testHelper("DELETE FROM %s WHERE a=1 AND b=2"); |
| } |
| |
| @Test |
| public void neverPurgePartitionTombstoneTest() throws Throwable |
| { |
| testHelper("DELETE FROM %s WHERE a=1"); |
| } |
| |
| @Test |
| public void minorNeverPurgeTombstonesTest() throws Throwable |
| { |
| createTable("CREATE TABLE %s (a int, b int, c text, PRIMARY KEY (a, b)) WITH gc_grace_seconds = 0"); |
| ColumnFamilyStore cfs = Keyspace.open(keyspace()).getColumnFamilyStore(currentTable()); |
| cfs.disableAutoCompaction(); |
| for (int i = 0; i < 4; i++) |
| { |
| for (int j = 0; j < 1000; j++) |
| { |
| execute("INSERT INTO %s (a, b, c) VALUES (" + j + ", 2, '3')"); |
| } |
| cfs.forceBlockingFlush(); |
| } |
| |
| execute("UPDATE %s SET c = null WHERE a=1 AND b=2"); |
| execute("DELETE FROM %s WHERE a=2 AND b=2"); |
| execute("DELETE FROM %s WHERE a=3"); |
| cfs.forceBlockingFlush(); |
| cfs.enableAutoCompaction(); |
| while (cfs.getLiveSSTables().size() > 1 || !cfs.getTracker().getCompacting().isEmpty()) |
| Thread.sleep(100); |
| verifyContainsTombstones(cfs.getLiveSSTables(), 3); |
| } |
| |
| private void testHelper(String deletionStatement) throws Throwable |
| { |
| createTable("CREATE TABLE %s (a int, b int, c text, PRIMARY KEY (a, b)) WITH gc_grace_seconds = 0"); |
| ColumnFamilyStore cfs = Keyspace.open(keyspace()).getColumnFamilyStore(currentTable()); |
| execute("INSERT INTO %s (a, b, c) VALUES (1, 2, '3')"); |
| execute(deletionStatement); |
| Thread.sleep(1000); |
| cfs.forceBlockingFlush(); |
| cfs.forceMajorCompaction(); |
| verifyContainsTombstones(cfs.getLiveSSTables(), 1); |
| } |
| |
| private void verifyContainsTombstones(Collection<SSTableReader> sstables, int expectedTombstoneCount) throws Exception |
| { |
| assertEquals(1, sstables.size()); // always run a major compaction before calling this |
| SSTableReader sstable = sstables.iterator().next(); |
| int tombstoneCount = 0; |
| try (ISSTableScanner scanner = sstable.getScanner()) |
| { |
| while (scanner.hasNext()) |
| { |
| try (UnfilteredRowIterator iter = scanner.next()) |
| { |
| if (!iter.partitionLevelDeletion().isLive()) |
| tombstoneCount++; |
| |
| while (iter.hasNext()) |
| { |
| Unfiltered atom = iter.next(); |
| if (atom.isRow()) |
| { |
| Row r = (Row)atom; |
| if (!r.deletion().isLive()) |
| tombstoneCount++; |
| for (Cell<?> c : r.cells()) |
| if (c.isTombstone()) |
| tombstoneCount++; |
| } |
| } |
| } |
| } |
| } |
| assertEquals(tombstoneCount, expectedTombstoneCount); |
| } |
| } |