| /* |
| * 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.hyracks.storage.am.lsm.btree; |
| |
| import java.io.File; |
| |
| import org.apache.hyracks.api.dataflow.value.ISerializerDeserializer; |
| import org.apache.hyracks.api.exceptions.HyracksDataException; |
| import org.apache.hyracks.dataflow.common.comm.io.ArrayTupleBuilder; |
| import org.apache.hyracks.dataflow.common.comm.io.ArrayTupleReference; |
| import org.apache.hyracks.dataflow.common.data.marshalling.IntegerSerializerDeserializer; |
| import org.apache.hyracks.storage.am.lsm.btree.impls.LSMBTree; |
| import org.apache.hyracks.storage.am.lsm.btree.impls.LSMBTreeWithBloomFilterDiskComponent; |
| import org.apache.hyracks.storage.am.lsm.btree.util.LSMBTreeTestContext; |
| import org.apache.hyracks.storage.am.lsm.btree.util.LSMBTreeTestHarness; |
| import org.apache.hyracks.storage.am.lsm.common.api.ILSMIndexAccessor; |
| import org.junit.After; |
| import org.junit.Assert; |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| public class LSMBTreeFileManagerTest { |
| |
| private final LSMBTreeTestHarness harness = new LSMBTreeTestHarness(); |
| |
| @Before |
| public void setUp() throws HyracksDataException { |
| harness.setUp(); |
| } |
| |
| @After |
| public void tearDown() throws HyracksDataException { |
| harness.tearDown(); |
| } |
| |
| @Test |
| public void deleteOrphanedFilesTest() throws Exception { |
| ISerializerDeserializer[] fieldSerdes = { IntegerSerializerDeserializer.INSTANCE }; |
| LSMBTreeTestContext ctx = LSMBTreeTestContext.create(harness.getIOManager(), harness.getVirtualBufferCaches(), |
| harness.getFileReference(), harness.getDiskBufferCache(), fieldSerdes, 1, |
| harness.getBoomFilterFalsePositiveRate(), harness.getMergePolicy(), harness.getOperationTracker(), |
| harness.getIOScheduler(), harness.getIOOperationCallbackFactory(), |
| harness.getPageWriteCallbackFactory(), harness.getMetadataPageManagerFactory(), false, true, false); |
| ctx.getIndex().create(); |
| ctx.getIndex().activate(); |
| |
| // Insert a tuple |
| ArrayTupleBuilder tupleBuilder = new ArrayTupleBuilder(ctx.getFieldCount()); |
| for (int i = 0; i < ctx.getFieldCount(); i++) { |
| tupleBuilder.addField(fieldSerdes[i], 1); |
| } |
| ArrayTupleReference tuple = new ArrayTupleReference(); |
| tuple.reset(tupleBuilder.getFieldEndOffsets(), tupleBuilder.getByteArray()); |
| ILSMIndexAccessor accessor = (ILSMIndexAccessor) ctx.getIndexAccessor(); |
| accessor.insert(tuple); |
| |
| // Flush to generate a disk component. This uses synchronous scheduler |
| accessor.scheduleFlush(); |
| |
| // Make sure the disk component was generated |
| LSMBTree btree = (LSMBTree) ctx.getIndex(); |
| Assert.assertEquals("Check disk components", 1, btree.getDiskComponents().size()); |
| |
| ctx.getIndex().deactivate(); |
| |
| // Delete the btree file and keep the bloom filter file from the disk component |
| LSMBTreeWithBloomFilterDiskComponent ilsmDiskComponent = |
| (LSMBTreeWithBloomFilterDiskComponent) btree.getDiskComponents().get(0); |
| ilsmDiskComponent.getIndex().getFileReference().delete(); |
| |
| File bloomFilterFile = ilsmDiskComponent.getBloomFilter().getFileReference().getFile().getAbsoluteFile(); |
| Assert.assertEquals("Check bloom filter file exists", true, bloomFilterFile.exists()); |
| |
| // Activating the index again should delete the orphaned bloom filter file as well as the disk component |
| ctx.getIndex().activate(); |
| Assert.assertEquals("Check bloom filter file deleted", false, bloomFilterFile.exists()); |
| Assert.assertEquals("Check disk components", 0, btree.getDiskComponents().size()); |
| } |
| } |