| /* |
| * 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.bookkeeper.statelib.impl.mvcc; |
| |
| import static com.google.common.base.Charsets.UTF_8; |
| import static org.apache.bookkeeper.common.concurrent.FutureUtils.result; |
| import static org.junit.Assert.assertArrayEquals; |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertFalse; |
| import static org.junit.Assert.assertNotNull; |
| import static org.junit.Assert.assertNull; |
| import static org.junit.Assert.assertTrue; |
| import static org.junit.Assert.fail; |
| |
| import com.google.common.collect.Lists; |
| import java.io.File; |
| import java.net.URI; |
| import java.util.List; |
| import java.util.concurrent.CompletableFuture; |
| import java.util.stream.IntStream; |
| import lombok.Cleanup; |
| import lombok.extern.slf4j.Slf4j; |
| import org.apache.bookkeeper.api.kv.op.PutOp; |
| import org.apache.bookkeeper.api.kv.options.Options; |
| import org.apache.bookkeeper.api.kv.result.Code; |
| import org.apache.bookkeeper.api.kv.result.KeyValue; |
| import org.apache.bookkeeper.api.kv.result.PutResult; |
| import org.apache.bookkeeper.common.coder.ByteArrayCoder; |
| import org.apache.bookkeeper.common.concurrent.FutureUtils; |
| import org.apache.bookkeeper.statelib.api.StateStoreSpec; |
| import org.apache.bookkeeper.statelib.api.exceptions.MVCCStoreException; |
| import org.apache.distributedlog.DLMTestUtil; |
| import org.apache.distributedlog.TestDistributedLogBase; |
| import org.apache.distributedlog.api.namespace.Namespace; |
| import org.apache.distributedlog.api.namespace.NamespaceBuilder; |
| import org.junit.After; |
| import org.junit.AfterClass; |
| import org.junit.Before; |
| import org.junit.BeforeClass; |
| import org.junit.Rule; |
| import org.junit.Test; |
| import org.junit.rules.TemporaryFolder; |
| |
| /** |
| * Unit test of {@link MVCCAsyncBytesStoreImpl}. |
| */ |
| @Slf4j |
| public class TestMVCCAsyncBytesStoreImpl extends TestDistributedLogBase { |
| |
| @Rule |
| public final TemporaryFolder testDir = new TemporaryFolder(); |
| |
| private static URI uri; |
| private static Namespace namespace; |
| |
| @BeforeClass |
| public static void setupCluster() throws Exception { |
| TestDistributedLogBase.setupCluster(); |
| uri = DLMTestUtil.createDLMURI(zkPort, "/mvcc"); |
| conf.setPeriodicFlushFrequencyMilliSeconds(2); |
| conf.setWriteLockEnabled(false); |
| namespace = NamespaceBuilder.newBuilder() |
| .conf(conf) |
| .uri(uri) |
| .clientId("test-mvcc-async-store") |
| .build(); |
| } |
| |
| @AfterClass |
| public static void teardownCluster() throws Exception { |
| if (null != namespace) { |
| namespace.close(); |
| } |
| TestDistributedLogBase.teardownCluster(); |
| } |
| |
| private String streamName; |
| private File tempDir; |
| private MVCCAsyncBytesStoreImpl store; |
| |
| @Before |
| @Override |
| public void setup() throws Exception { |
| super.setup(); |
| ensureURICreated(uri); |
| |
| tempDir = testDir.newFolder(); |
| |
| store = new MVCCAsyncBytesStoreImpl( |
| () -> new MVCCStoreImpl<>(), |
| () -> namespace); |
| } |
| |
| private StateStoreSpec initSpec(String streamName) { |
| return StateStoreSpec.builder() |
| .name(streamName) |
| .keyCoder(ByteArrayCoder.of()) |
| .valCoder(ByteArrayCoder.of()) |
| .stream(streamName) |
| .localStateStoreDir(tempDir) |
| .build(); |
| } |
| |
| @After |
| @Override |
| public void teardown() throws Exception { |
| if (null != streamName) { |
| namespace.deleteLog(streamName); |
| } |
| |
| if (null != store) { |
| store.close(); |
| } |
| super.teardown(); |
| } |
| |
| @Test(expected = NullPointerException.class) |
| public void testInitMissingStreamName() throws Exception { |
| this.streamName = "test-init-missing-stream-name"; |
| StateStoreSpec spec = StateStoreSpec.builder() |
| .name(streamName) |
| .keyCoder(ByteArrayCoder.of()) |
| .valCoder(ByteArrayCoder.of()) |
| .localStateStoreDir(tempDir) |
| .build(); |
| result(store.init(spec)); |
| } |
| |
| @Test |
| public void testInit() throws Exception { |
| this.streamName = "test-init"; |
| StateStoreSpec spec = initSpec(streamName); |
| result(store.init(spec)); |
| assertTrue(store.ownWriteScheduler()); |
| assertFalse(store.ownReadScheduler()); |
| assertEquals(streamName, store.name()); |
| } |
| |
| // |
| // Put & Range Ops |
| // |
| |
| private byte[] getKey(int i) { |
| return String.format("key-%05d", i).getBytes(UTF_8); |
| } |
| |
| private byte[] getValue(int i) { |
| return String.format("value-%05d", i).getBytes(UTF_8); |
| } |
| |
| private List<PutResult<byte[], byte[]>> writeKVs(int numPairs, boolean prevKv) throws Exception { |
| List<CompletableFuture<PutResult<byte[], byte[]>>> results = Lists.newArrayListWithExpectedSize(numPairs); |
| for (int i = 0; i < numPairs; i++) { |
| results.add(writeKV(i, prevKv)); |
| } |
| return result(FutureUtils.collect(results)); |
| } |
| |
| private CompletableFuture<PutResult<byte[], byte[]>> writeKV(int i, boolean prevKv) { |
| PutOp<byte[], byte[]> op = store.getOpFactory().newPut( |
| getKey(i), |
| getValue(i), |
| Options.putAndGet()); |
| return store.put(op).whenComplete((value, cause) -> op.close()); |
| } |
| |
| @Test |
| public void testBasicOps() throws Exception { |
| this.streamName = "test-basic-ops"; |
| StateStoreSpec spec = initSpec(streamName); |
| result(store.init(spec)); |
| |
| // normal put |
| { |
| assertNull(result(store.get(getKey(0)))); |
| result(store.put(getKey(0), getValue(0))); |
| assertArrayEquals(getValue(0), result(store.get(getKey(0)))); |
| } |
| |
| // putIfAbsent |
| { |
| // failure case |
| assertArrayEquals(getValue(0), result(store.putIfAbsent(getKey(0), getValue(99)))); |
| assertArrayEquals(getValue(0), result(store.get(getKey(0)))); |
| // success case |
| byte[] key1 = getKey(1); |
| assertNull(result(store.putIfAbsent(key1, getValue(1)))); |
| assertArrayEquals(getValue(1), result(store.get(key1))); |
| } |
| |
| // vPut |
| { |
| // key-not-found case |
| int key = 2; |
| int initialVal = 2; |
| int casVal = 99; |
| try { |
| result(store.vPut(getKey(key), getValue(initialVal), 100L)); |
| fail("key2 doesn't exist yet"); |
| } catch (MVCCStoreException e) { |
| assertEquals(Code.KEY_NOT_FOUND, e.getCode()); |
| } |
| // vPut(k, v, -1L) |
| try { |
| result(store.vPut(getKey(key), getValue(initialVal), -1L)); |
| fail("key2 doesn't exist yet"); |
| } catch (MVCCStoreException e) { |
| assertEquals(Code.KEY_NOT_FOUND, e.getCode()); |
| } |
| // put(key2, v) |
| assertNull(result(store.putIfAbsent(getKey(key), getValue(initialVal)))); |
| // vPut(key2, v, 0) |
| assertEquals(1L, result(store.vPut(getKey(key), getValue(casVal), 0)).longValue()); |
| assertArrayEquals(getValue(casVal), result(store.get(getKey(key)))); |
| } |
| |
| // rPut |
| { |
| // key-not-found case |
| int key = 3; |
| int initialVal = 3; |
| int casVal = 99; |
| try { |
| result(store.rPut(getKey(key), getValue(initialVal), 100L)); |
| fail("key2 doesn't exist yet"); |
| } catch (MVCCStoreException e) { |
| assertEquals(Code.KEY_NOT_FOUND, e.getCode()); |
| } |
| // vPut(k, v, -1L) |
| try { |
| result(store.rPut(getKey(key), getValue(initialVal), -1L)); |
| fail("key2 doesn't exist yet"); |
| } catch (MVCCStoreException e) { |
| assertEquals(Code.KEY_NOT_FOUND, e.getCode()); |
| } |
| // put(key2, v) |
| assertNull(result(store.putIfAbsent(getKey(key), getValue(initialVal)))); |
| KeyValue<byte[], byte[]> kv = result(store.getKeyValue(getKey(key))); |
| long revision = kv.modifiedRevision(); |
| assertArrayEquals(getValue(initialVal), kv.value()); |
| // vPut(key2, v, 0) |
| assertEquals(revision + 1, result(store.rPut(getKey(key), getValue(casVal), revision)).longValue()); |
| assertArrayEquals(getValue(casVal), result(store.get(getKey(key)))); |
| } |
| |
| // delete(k) |
| { |
| // key not found |
| assertNull(result(store.delete(getKey(99)))); |
| // key exists |
| int key = 0; |
| assertArrayEquals(getValue(key), result(store.get(getKey(key)))); |
| assertArrayEquals(getValue(key), result(store.delete(getKey(key)))); |
| assertNull(result(store.get(getKey(key)))); |
| } |
| |
| // delete(k, v) |
| { |
| // key not found |
| assertNull(result(store.delete(getKey(99)))); |
| // key exists |
| int key = 1; |
| assertArrayEquals(getValue(key), result(store.get(getKey(key)))); |
| assertFalse(result(store.delete(getKey(key), getValue(99)))); |
| assertArrayEquals(getValue(key), result(store.get(getKey(key)))); |
| assertTrue(result(store.delete(getKey(key), getValue(key)))); |
| assertNull(result(store.get(getKey(key)))); |
| } |
| // vDelete |
| { |
| int key = 2; |
| @Cleanup KeyValue<byte[], byte[]> kv = result(store.getKeyValue(getKey(key))); |
| long expectedVersion = kv.version(); |
| try { |
| result(store.vDelete(getKey(key), expectedVersion + 1)); |
| fail("should fail to delete a key with wrong version"); |
| } catch (MVCCStoreException e) { |
| assertEquals(Code.BAD_REVISION, e.getCode()); |
| } |
| // vDelete(k, -1L) |
| try { |
| result(store.vDelete(getKey(key), -1L)); |
| fail("Should fail to delete a key with version(-1)"); |
| } catch (MVCCStoreException e) { |
| assertEquals(Code.BAD_REVISION, e.getCode()); |
| } |
| // vDelete(key2, version) |
| @Cleanup KeyValue<byte[], byte[]> deletedKv = (result(store.vDelete(getKey(key), expectedVersion))); |
| assertNotNull(deletedKv); |
| assertEquals(kv.createRevision(), deletedKv.createRevision()); |
| assertEquals(kv.modifiedRevision(), deletedKv.modifiedRevision()); |
| assertEquals(kv.version(), deletedKv.version()); |
| assertArrayEquals(kv.value(), deletedKv.value()); |
| assertNull(result(store.get(getKey(key)))); |
| } |
| |
| // rPut |
| { |
| int key = 3; |
| @Cleanup KeyValue<byte[], byte[]> kv = result(store.getKeyValue(getKey(key))); |
| long expectedRevision = kv.modifiedRevision(); |
| try { |
| result(store.rDelete(getKey(key), expectedRevision + 1)); |
| fail("should fail to delete a key with wrong revision"); |
| } catch (MVCCStoreException e) { |
| assertEquals(Code.BAD_REVISION, e.getCode()); |
| } |
| // rDelete(k, -1L) |
| try { |
| result(store.rDelete(getKey(key), -1L)); |
| fail("Should fail to delete a key with revision(-1)"); |
| } catch (MVCCStoreException e) { |
| assertEquals(Code.BAD_REVISION, e.getCode()); |
| } |
| // rDelete(key2, revision) |
| @Cleanup KeyValue<byte[], byte[]> deletedKv = (result(store.rDelete(getKey(key), expectedRevision))); |
| assertNotNull(deletedKv); |
| assertEquals(kv.createRevision(), deletedKv.createRevision()); |
| assertEquals(kv.modifiedRevision(), deletedKv.modifiedRevision()); |
| assertEquals(kv.version(), deletedKv.version()); |
| assertArrayEquals(kv.value(), deletedKv.value()); |
| assertNull(result(store.get(getKey(key)))); |
| } |
| |
| // increment failure |
| { |
| int ki = 3; |
| byte[] key = getKey(ki); |
| result(store.put(key, getValue(ki))); |
| try { |
| result(store.increment(key, 100L)); |
| fail("Can't increment a non-number key"); |
| } catch (MVCCStoreException e) { |
| assertEquals(Code.ILLEGAL_OP, e.getCode()); |
| } |
| } |
| |
| // increment success |
| { |
| int ki = 4; |
| byte[] key = getKey(ki); |
| for (int i = 0; i < 5; i++) { |
| result(store.increment(key, 100L)); |
| @Cleanup KeyValue<byte[], byte[]> kv = result(store.getKeyValue(key)); |
| assertEquals(100L * (i + 1), kv.numberValue()); |
| } |
| } |
| } |
| |
| @Test |
| public void testPutGetDeleteRanges() throws Exception { |
| this.streamName = "test-put-kvs"; |
| StateStoreSpec spec = initSpec(streamName); |
| result(store.init(spec)); |
| int numPairs = 100; |
| List<PutResult<byte[], byte[]>> kvs = writeKVs(numPairs, true); |
| assertEquals(numPairs, kvs.size()); |
| |
| for (PutResult<byte[], byte[]> kv : kvs) { |
| assertEquals(Code.OK, kv.code()); |
| assertNull(kv.prevKv()); |
| kv.close(); |
| } |
| |
| verifyRange(20, 70, 2, 2, 0); |
| |
| List<KeyValue<byte[], byte[]>> prevKvs = result(store.deleteRange(getKey(20), getKey(70))); |
| assertNotNull(prevKvs); |
| verifyRecords( |
| prevKvs, |
| 20, 70, |
| 2, 2, 0); |
| prevKvs.forEach(KeyValue::close); |
| |
| prevKvs = result(store.range(getKey(20), getKey(70))); |
| assertTrue(prevKvs.isEmpty()); |
| } |
| |
| private void verifyRange(int startKey, |
| int endKey, |
| int startCreateRevision, |
| int startModRevision, |
| int expectedVersion) throws Exception { |
| int count = endKey - startKey + 1; |
| List<KeyValue<byte[], byte[]>> kvs = result(store.range(getKey(startKey), getKey(endKey))); |
| assertEquals(count, kvs.size()); |
| |
| verifyRecords(kvs, startKey, endKey, startCreateRevision, startModRevision, expectedVersion); |
| |
| kvs.forEach(KeyValue::close); |
| } |
| |
| private void verifyRecords(List<KeyValue<byte[], byte[]>> kvs, |
| int startKey, int endKey, |
| int startCreateRevision, |
| int startModRevision, |
| int expectedVersion) { |
| int idx = startKey; |
| for (KeyValue<byte[], byte[]> record : kvs) { |
| assertArrayEquals(getKey(idx), record.key()); |
| assertArrayEquals(getValue(idx), record.value()); |
| // revision - starts from 1, but the first revision is used for nop barrier record. |
| assertEquals(idx + startCreateRevision, record.createRevision()); |
| assertEquals(idx + startModRevision, record.modifiedRevision()); |
| assertEquals(expectedVersion, record.version()); |
| ++idx; |
| } |
| assertEquals(endKey + 1, idx); |
| } |
| |
| @Test |
| public void testReplayJournal() throws Exception { |
| this.streamName = "test-replay-journal"; |
| StateStoreSpec spec = initSpec(streamName); |
| result(store.init(spec)); |
| |
| int numKvs = 10; |
| |
| // putIfAbsent |
| IntStream.range(0, numKvs) |
| .forEach(i -> { |
| try { |
| result(store.putIfAbsent(getKey(i), getValue(100 + i))); |
| } catch (Exception e) { |
| log.error("Failed to put kv pair ({})", i, e); |
| } |
| }); |
| |
| log.info("Closing the store '{}' ...", streamName); |
| // close the store |
| store.close(); |
| log.info("Closed the store '{}' ...", streamName); |
| |
| // open the store again to replay the journal. |
| store = new MVCCAsyncBytesStoreImpl( |
| () -> new MVCCStoreImpl<>(), |
| () -> namespace); |
| spec = StateStoreSpec.builder() |
| .name(streamName) |
| .keyCoder(ByteArrayCoder.of()) |
| .valCoder(ByteArrayCoder.of()) |
| .stream(streamName) |
| .localStateStoreDir(testDir.newFolder()) |
| .build(); |
| result(store.init(spec)); |
| |
| // verify the key/value pairs |
| for (int i = 0; i < numKvs; i++) { |
| byte[] value = result(store.get(getKey(i))); |
| assertNotNull(value); |
| assertArrayEquals(getValue(100 + i), value); |
| } |
| } |
| |
| } |