Examples with RESTORE_END org.apache.kafka.test.MockStateRestoreListener.RESTORE_END used on opensource projects

Example 1 with RESTORE_END

use of org.apache.kafka.test.MockStateRestoreListener.RESTORE_END in project kafka by apache.

the class StoreChangelogReaderTest method shouldRestoreToLimitInStandbyState.

@Test
public void shouldRestoreToLimitInStandbyState() {
    final Map<TaskId, Task> mockTasks = mock(Map.class);
    EasyMock.expect(mockTasks.get(null)).andReturn(mock(Task.class)).anyTimes();
    EasyMock.expect(standbyStateManager.changelogAsSource(tp)).andReturn(true).anyTimes();
    EasyMock.replay(mockTasks, standbyStateManager, storeMetadata, store);
    final AtomicLong offset = new AtomicLong(7L);
    final MockConsumer<byte[], byte[]> consumer = new MockConsumer<byte[], byte[]>(OffsetResetStrategy.EARLIEST) {

        @Override
        public Map<TopicPartition, OffsetAndMetadata> committed(final Set<TopicPartition> partitions) {
            return partitions.stream().collect(Collectors.toMap(Function.identity(), partition -> new OffsetAndMetadata(offset.get())));
        }
    };
    final long now = time.milliseconds();
    final Properties properties = new Properties();
    properties.put(StreamsConfig.COMMIT_INTERVAL_MS_CONFIG, 100L);
    final StreamsConfig config = new StreamsConfig(StreamsTestUtils.getStreamsConfig("test-reader", properties));
    final StoreChangelogReader changelogReader = new StoreChangelogReader(time, config, logContext, adminClient, consumer, callback);
    changelogReader.setMainConsumer(consumer);
    changelogReader.transitToUpdateStandby();
    consumer.updateBeginningOffsets(Collections.singletonMap(tp, 5L));
    changelogReader.register(tp, standbyStateManager);
    assertEquals(0L, (long) changelogReader.changelogMetadata(tp).endOffset());
    assertEquals(0L, changelogReader.changelogMetadata(tp).totalRestored());
    changelogReader.restore(mockTasks);
    assertNull(callback.restoreTopicPartition);
    assertNull(callback.storeNameCalledStates.get(RESTORE_START));
    assertEquals(StoreChangelogReader.ChangelogState.RESTORING, changelogReader.changelogMetadata(tp).state());
    assertEquals(7L, (long) changelogReader.changelogMetadata(tp).endOffset());
    assertEquals(0L, changelogReader.changelogMetadata(tp).totalRestored());
    consumer.addRecord(new ConsumerRecord<>(topicName, 0, 5L, "key".getBytes(), "value".getBytes()));
    consumer.addRecord(new ConsumerRecord<>(topicName, 0, 6L, "key".getBytes(), "value".getBytes()));
    consumer.addRecord(new ConsumerRecord<>(topicName, 0, 7L, "key".getBytes(), "value".getBytes()));
    // null key should be ignored
    consumer.addRecord(new ConsumerRecord<>(topicName, 0, 8L, null, "value".getBytes()));
    consumer.addRecord(new ConsumerRecord<>(topicName, 0, 9L, "key".getBytes(), "value".getBytes()));
    consumer.addRecord(new ConsumerRecord<>(topicName, 0, 10L, "key".getBytes(), "value".getBytes()));
    consumer.addRecord(new ConsumerRecord<>(topicName, 0, 11L, "key".getBytes(), "value".getBytes()));
    changelogReader.restore(mockTasks);
    assertEquals(StoreChangelogReader.ChangelogState.RESTORING, changelogReader.changelogMetadata(tp).state());
    assertEquals(7L, (long) changelogReader.changelogMetadata(tp).endOffset());
    assertEquals(2L, changelogReader.changelogMetadata(tp).totalRestored());
    assertEquals(4, changelogReader.changelogMetadata(tp).bufferedRecords().size());
    assertEquals(0, changelogReader.changelogMetadata(tp).bufferedLimitIndex());
    assertNull(callback.storeNameCalledStates.get(RESTORE_END));
    assertNull(callback.storeNameCalledStates.get(RESTORE_BATCH));
    offset.set(10L);
    time.setCurrentTimeMs(now + 100L);
    // should not try to read committed offsets if interval has not reached
    changelogReader.restore(mockTasks);
    assertEquals(7L, (long) changelogReader.changelogMetadata(tp).endOffset());
    assertEquals(2L, changelogReader.changelogMetadata(tp).totalRestored());
    assertEquals(4, changelogReader.changelogMetadata(tp).bufferedRecords().size());
    assertEquals(0, changelogReader.changelogMetadata(tp).bufferedLimitIndex());
    time.setCurrentTimeMs(now + 101L);
    // the first restore would only update the limit, same below
    changelogReader.restore(mockTasks);
    assertEquals(10L, (long) changelogReader.changelogMetadata(tp).endOffset());
    assertEquals(2L, changelogReader.changelogMetadata(tp).totalRestored());
    assertEquals(4, changelogReader.changelogMetadata(tp).bufferedRecords().size());
    assertEquals(2, changelogReader.changelogMetadata(tp).bufferedLimitIndex());
    changelogReader.restore(mockTasks);
    assertEquals(10L, (long) changelogReader.changelogMetadata(tp).endOffset());
    assertEquals(4L, changelogReader.changelogMetadata(tp).totalRestored());
    assertEquals(2, changelogReader.changelogMetadata(tp).bufferedRecords().size());
    assertEquals(0, changelogReader.changelogMetadata(tp).bufferedLimitIndex());
    offset.set(15L);
    // after we've updated once, the timer should be reset and we should not try again until next interval elapsed
    time.setCurrentTimeMs(now + 201L);
    changelogReader.restore(mockTasks);
    assertEquals(10L, (long) changelogReader.changelogMetadata(tp).endOffset());
    assertEquals(4L, changelogReader.changelogMetadata(tp).totalRestored());
    assertEquals(2, changelogReader.changelogMetadata(tp).bufferedRecords().size());
    assertEquals(0, changelogReader.changelogMetadata(tp).bufferedLimitIndex());
    // once we are in update active mode, we should not try to update limit offset
    time.setCurrentTimeMs(now + 202L);
    changelogReader.enforceRestoreActive();
    changelogReader.restore(mockTasks);
    assertEquals(10L, (long) changelogReader.changelogMetadata(tp).endOffset());
    assertEquals(4L, changelogReader.changelogMetadata(tp).totalRestored());
    assertEquals(2, changelogReader.changelogMetadata(tp).bufferedRecords().size());
    assertEquals(0, changelogReader.changelogMetadata(tp).bufferedLimitIndex());
    changelogReader.transitToUpdateStandby();
    changelogReader.restore(mockTasks);
    assertEquals(15L, (long) changelogReader.changelogMetadata(tp).endOffset());
    assertEquals(4L, changelogReader.changelogMetadata(tp).totalRestored());
    assertEquals(2, changelogReader.changelogMetadata(tp).bufferedRecords().size());
    assertEquals(2, changelogReader.changelogMetadata(tp).bufferedLimitIndex());
    changelogReader.restore(mockTasks);
    assertEquals(15L, (long) changelogReader.changelogMetadata(tp).endOffset());
    assertEquals(6L, changelogReader.changelogMetadata(tp).totalRestored());
    assertEquals(0, changelogReader.changelogMetadata(tp).bufferedRecords().size());
    assertEquals(0, changelogReader.changelogMetadata(tp).bufferedLimitIndex());
    consumer.addRecord(new ConsumerRecord<>(topicName, 0, 12L, "key".getBytes(), "value".getBytes()));
    consumer.addRecord(new ConsumerRecord<>(topicName, 0, 13L, "key".getBytes(), "value".getBytes()));
    consumer.addRecord(new ConsumerRecord<>(topicName, 0, 14L, "key".getBytes(), "value".getBytes()));
    consumer.addRecord(new ConsumerRecord<>(topicName, 0, 15L, "key".getBytes(), "value".getBytes()));
    changelogReader.restore(mockTasks);
    assertEquals(15L, (long) changelogReader.changelogMetadata(tp).endOffset());
    assertEquals(9L, changelogReader.changelogMetadata(tp).totalRestored());
    assertEquals(1, changelogReader.changelogMetadata(tp).bufferedRecords().size());
    assertEquals(0, changelogReader.changelogMetadata(tp).bufferedLimitIndex());
}