Examples with StreamStateHandle org.apache.flink.runtime.state.StreamStateHandle used on opensource projects

Example 1 with StreamStateHandle

use of org.apache.flink.runtime.state.StreamStateHandle in project flink by apache.

the class MigrationV0ToV1Test method testSavepointMigrationV0ToV1.

/**
	 * Simple test of savepoint methods.
	 */
@Test
public void testSavepointMigrationV0ToV1() throws Exception {
    String target = tmp.getRoot().getAbsolutePath();
    assertEquals(0, tmp.getRoot().listFiles().length);
    long checkpointId = ThreadLocalRandom.current().nextLong(Integer.MAX_VALUE);
    int numTaskStates = 4;
    int numSubtaskStates = 16;
    Collection<org.apache.flink.migration.runtime.checkpoint.TaskState> expected = createTaskStatesOld(numTaskStates, numSubtaskStates);
    SavepointV0 savepoint = new SavepointV0(checkpointId, expected);
    assertEquals(SavepointV0.VERSION, savepoint.getVersion());
    assertEquals(checkpointId, savepoint.getCheckpointId());
    assertEquals(expected, savepoint.getOldTaskStates());
    assertFalse(savepoint.getOldTaskStates().isEmpty());
    Exception latestException = null;
    Path path = null;
    FSDataOutputStream fdos = null;
    FileSystem fs = null;
    try {
        // Try to create a FS output stream
        for (int attempt = 0; attempt < 10; attempt++) {
            path = new Path(target, FileUtils.getRandomFilename("savepoint-"));
            if (fs == null) {
                fs = FileSystem.get(path.toUri());
            }
            try {
                fdos = fs.create(path, false);
                break;
            } catch (Exception e) {
                latestException = e;
            }
        }
        if (fdos == null) {
            throw new IOException("Failed to create file output stream at " + path, latestException);
        }
        try (DataOutputStream dos = new DataOutputStream(fdos)) {
            dos.writeInt(SavepointStore.MAGIC_NUMBER);
            dos.writeInt(savepoint.getVersion());
            SavepointV0Serializer.INSTANCE.serializeOld(savepoint, dos);
        }
        ClassLoader cl = Thread.currentThread().getContextClassLoader();
        Savepoint sp = SavepointStore.loadSavepoint(path.toString(), cl);
        int t = 0;
        for (TaskState taskState : sp.getTaskStates()) {
            for (int p = 0; p < taskState.getParallelism(); ++p) {
                SubtaskState subtaskState = taskState.getState(p);
                ChainedStateHandle<StreamStateHandle> legacyOperatorState = subtaskState.getLegacyOperatorState();
                for (int c = 0; c < legacyOperatorState.getLength(); ++c) {
                    StreamStateHandle stateHandle = legacyOperatorState.get(c);
                    try (InputStream is = stateHandle.openInputStream()) {
                        Tuple4<Integer, Integer, Integer, Integer> expTestState = new Tuple4<>(0, t, p, c);
                        Tuple4<Integer, Integer, Integer, Integer> actTestState;
                        //check function state
                        if (p % 4 != 0) {
                            assertEquals(1, is.read());
                            actTestState = InstantiationUtil.deserializeObject(is, cl);
                            assertEquals(expTestState, actTestState);
                        } else {
                            assertEquals(0, is.read());
                        }
                        //check operator state
                        expTestState.f0 = 1;
                        actTestState = InstantiationUtil.deserializeObject(is, cl);
                        assertEquals(expTestState, actTestState);
                    }
                }
                //check keyed state
                KeyGroupsStateHandle keyGroupsStateHandle = subtaskState.getManagedKeyedState();
                if (t % 3 != 0) {
                    assertEquals(1, keyGroupsStateHandle.getNumberOfKeyGroups());
                    assertEquals(p, keyGroupsStateHandle.getGroupRangeOffsets().getKeyGroupRange().getStartKeyGroup());
                    ByteStreamStateHandle stateHandle = (ByteStreamStateHandle) keyGroupsStateHandle.getDelegateStateHandle();
                    HashMap<String, KvStateSnapshot<?, ?, ?, ?>> testKeyedState = MigrationInstantiationUtil.deserializeObject(stateHandle.getData(), cl);
                    assertEquals(2, testKeyedState.size());
                    for (KvStateSnapshot<?, ?, ?, ?> snapshot : testKeyedState.values()) {
                        MemValueState.Snapshot<?, ?, ?> castedSnapshot = (MemValueState.Snapshot<?, ?, ?>) snapshot;
                        byte[] data = castedSnapshot.getData();
                        assertEquals(t, data[0]);
                        assertEquals(p, data[1]);
                    }
                } else {
                    assertEquals(null, keyGroupsStateHandle);
                }
            }
            ++t;
        }
        savepoint.dispose();
    } finally {
        // Dispose
        SavepointStore.removeSavepointFile(path.toString());
    }
}

Example 2 with StreamStateHandle

use of org.apache.flink.runtime.state.StreamStateHandle in project flink by apache.

the class SavepointV1Test method createTaskStates.

static Collection<TaskState> createTaskStates(int numTaskStates, int numSubtasksPerTask) throws IOException {
    Random random = new Random(numTaskStates * 31 + numSubtasksPerTask);
    List<TaskState> taskStates = new ArrayList<>(numTaskStates);
    for (int stateIdx = 0; stateIdx < numTaskStates; ++stateIdx) {
        int chainLength = 1 + random.nextInt(8);
        TaskState taskState = new TaskState(new JobVertexID(), numSubtasksPerTask, 128, chainLength);
        int noNonPartitionableStateAtIndex = random.nextInt(chainLength);
        int noOperatorStateBackendAtIndex = random.nextInt(chainLength);
        int noOperatorStateStreamAtIndex = random.nextInt(chainLength);
        boolean hasKeyedBackend = random.nextInt(4) != 0;
        boolean hasKeyedStream = random.nextInt(4) != 0;
        for (int subtaskIdx = 0; subtaskIdx < numSubtasksPerTask; subtaskIdx++) {
            List<StreamStateHandle> nonPartitionableStates = new ArrayList<>(chainLength);
            List<OperatorStateHandle> operatorStatesBackend = new ArrayList<>(chainLength);
            List<OperatorStateHandle> operatorStatesStream = new ArrayList<>(chainLength);
            for (int chainIdx = 0; chainIdx < chainLength; ++chainIdx) {
                StreamStateHandle nonPartitionableState = new TestByteStreamStateHandleDeepCompare("a-" + chainIdx, ("Hi-" + chainIdx).getBytes(ConfigConstants.DEFAULT_CHARSET));
                StreamStateHandle operatorStateBackend = new TestByteStreamStateHandleDeepCompare("b-" + chainIdx, ("Beautiful-" + chainIdx).getBytes(ConfigConstants.DEFAULT_CHARSET));
                StreamStateHandle operatorStateStream = new TestByteStreamStateHandleDeepCompare("b-" + chainIdx, ("Beautiful-" + chainIdx).getBytes(ConfigConstants.DEFAULT_CHARSET));
                Map<String, OperatorStateHandle.StateMetaInfo> offsetsMap = new HashMap<>();
                offsetsMap.put("A", new OperatorStateHandle.StateMetaInfo(new long[] { 0, 10, 20 }, OperatorStateHandle.Mode.SPLIT_DISTRIBUTE));
                offsetsMap.put("B", new OperatorStateHandle.StateMetaInfo(new long[] { 30, 40, 50 }, OperatorStateHandle.Mode.SPLIT_DISTRIBUTE));
                offsetsMap.put("C", new OperatorStateHandle.StateMetaInfo(new long[] { 60, 70, 80 }, OperatorStateHandle.Mode.BROADCAST));
                if (chainIdx != noNonPartitionableStateAtIndex) {
                    nonPartitionableStates.add(nonPartitionableState);
                }
                if (chainIdx != noOperatorStateBackendAtIndex) {
                    OperatorStateHandle operatorStateHandleBackend = new OperatorStateHandle(offsetsMap, operatorStateBackend);
                    operatorStatesBackend.add(operatorStateHandleBackend);
                }
                if (chainIdx != noOperatorStateStreamAtIndex) {
                    OperatorStateHandle operatorStateHandleStream = new OperatorStateHandle(offsetsMap, operatorStateStream);
                    operatorStatesStream.add(operatorStateHandleStream);
                }
            }
            KeyGroupsStateHandle keyedStateBackend = null;
            KeyGroupsStateHandle keyedStateStream = null;
            if (hasKeyedBackend) {
                keyedStateBackend = new KeyGroupsStateHandle(new KeyGroupRangeOffsets(1, 1, new long[] { 42 }), new TestByteStreamStateHandleDeepCompare("c", "Hello".getBytes(ConfigConstants.DEFAULT_CHARSET)));
            }
            if (hasKeyedStream) {
                keyedStateStream = new KeyGroupsStateHandle(new KeyGroupRangeOffsets(1, 1, new long[] { 23 }), new TestByteStreamStateHandleDeepCompare("d", "World".getBytes(ConfigConstants.DEFAULT_CHARSET)));
            }
            taskState.putState(subtaskIdx, new SubtaskState(new ChainedStateHandle<>(nonPartitionableStates), new ChainedStateHandle<>(operatorStatesBackend), new ChainedStateHandle<>(operatorStatesStream), keyedStateStream, keyedStateBackend));
        }
        taskStates.add(taskState);
    }
    return taskStates;
}

Example 3 with StreamStateHandle

use of org.apache.flink.runtime.state.StreamStateHandle in project flink by apache.

the class CompletedCheckpointStoreTest method createCheckpoint.

protected TestCompletedCheckpoint createCheckpoint(int id, int numberOfStates, CheckpointProperties props) throws IOException {
    JobVertexID jvid = new JobVertexID();
    Map<JobVertexID, TaskState> taskGroupStates = new HashMap<>();
    TaskState taskState = new TaskState(jvid, numberOfStates, numberOfStates, 1);
    taskGroupStates.put(jvid, taskState);
    for (int i = 0; i < numberOfStates; i++) {
        ChainedStateHandle<StreamStateHandle> stateHandle = CheckpointCoordinatorTest.generateChainedStateHandle(new CheckpointMessagesTest.MyHandle());
        taskState.putState(i, new SubtaskState(stateHandle, null, null, null, null));
    }
    return new TestCompletedCheckpoint(new JobID(), id, 0, taskGroupStates, props);
}

Example 4 with StreamStateHandle

use of org.apache.flink.runtime.state.StreamStateHandle in project flink by apache.

the class AbstractStreamOperatorTestHarness method initializeStateFromLegacyCheckpoint.

public void initializeStateFromLegacyCheckpoint(String checkpointFilename) throws Exception {
    FileInputStream fin = new FileInputStream(checkpointFilename);
    StreamTaskState state = MigrationInstantiationUtil.deserializeObject(fin, ClassLoader.getSystemClassLoader());
    fin.close();
    if (!setupCalled) {
        setup();
    }
    StreamStateHandle stateHandle = SavepointV0Serializer.convertOperatorAndFunctionState(state);
    List<KeyGroupsStateHandle> keyGroupStatesList = new ArrayList<>();
    if (state.getKvStates() != null) {
        KeyGroupsStateHandle keyedStateHandle = SavepointV0Serializer.convertKeyedBackendState(state.getKvStates(), environment.getTaskInfo().getIndexOfThisSubtask(), 0);
        keyGroupStatesList.add(keyedStateHandle);
    }
    // finally calling the initializeState() with the legacy operatorStateHandles
    initializeState(new OperatorStateHandles(0, stateHandle, keyGroupStatesList, Collections.<KeyGroupsStateHandle>emptyList(), Collections.<OperatorStateHandle>emptyList(), Collections.<OperatorStateHandle>emptyList()));
}

Example 5 with StreamStateHandle

use of org.apache.flink.runtime.state.StreamStateHandle in project flink by apache.

the class SavepointV0Serializer method convertOperatorAndFunctionState.

/**
	 * This is public so that we can use it when restoring a legacy snapshot
	 * in {@code AbstractStreamOperatorTestHarness}.
	 */
public static StreamStateHandle convertOperatorAndFunctionState(StreamTaskState streamTaskState) throws Exception {
    List<StreamStateHandle> mergeStateHandles = new ArrayList<>(4);
    StateHandle<Serializable> functionState = streamTaskState.getFunctionState();
    StateHandle<?> operatorState = streamTaskState.getOperatorState();
    if (null != functionState) {
        mergeStateHandles.add(SIGNAL_1);
        mergeStateHandles.add(convertStateHandle(functionState));
    } else {
        mergeStateHandles.add(SIGNAL_0);
    }
    if (null != operatorState) {
        mergeStateHandles.add(convertStateHandle(operatorState));
    }
    return new MigrationStreamStateHandle(new MultiStreamStateHandle(mergeStateHandles));
}