/*
* Licensed 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 com.facebook.presto.execution.buffer;
import com.facebook.presto.OutputBuffers;
import com.facebook.presto.OutputBuffers.OutputBufferId;
import com.facebook.presto.block.BlockAssertions;
import com.facebook.presto.execution.StateMachine;
import com.facebook.presto.operator.PageAssertions;
import com.facebook.presto.spi.Page;
import com.facebook.presto.spi.type.BigintType;
import com.facebook.presto.spi.type.Type;
import com.google.common.collect.ImmutableList;
import com.google.common.util.concurrent.ListenableFuture;
import io.airlift.units.DataSize;
import io.airlift.units.Duration;
import org.testng.annotations.AfterClass;
import org.testng.annotations.BeforeClass;
import org.testng.annotations.Test;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.Future;
import java.util.concurrent.ScheduledExecutorService;
import java.util.stream.Collectors;
import static com.facebook.presto.OutputBuffers.BufferType.PARTITIONED;
import static com.facebook.presto.OutputBuffers.createInitialEmptyOutputBuffers;
import static com.facebook.presto.execution.buffer.BufferResult.emptyResults;
import static com.facebook.presto.execution.buffer.BufferState.OPEN;
import static com.facebook.presto.execution.buffer.BufferState.TERMINAL_BUFFER_STATES;
import static com.facebook.presto.execution.buffer.TestingPagesSerdeFactory.testingPagesSerde;
import static com.facebook.presto.spi.type.BigintType.BIGINT;
import static com.google.common.base.Preconditions.checkArgument;
import static io.airlift.concurrent.MoreFutures.tryGetFutureValue;
import static io.airlift.concurrent.Threads.daemonThreadsNamed;
import static io.airlift.units.DataSize.Unit.BYTE;
import static java.util.concurrent.Executors.newScheduledThreadPool;
import static java.util.concurrent.TimeUnit.MILLISECONDS;
import static java.util.concurrent.TimeUnit.SECONDS;
import static org.testng.Assert.assertEquals;
import static org.testng.Assert.assertFalse;
import static org.testng.Assert.assertTrue;
import static org.testng.Assert.fail;
public class TestPartitionedOutputBuffer
{
private static final PagesSerde PAGES_SERDE = testingPagesSerde();
private static final Duration NO_WAIT = new Duration(0, MILLISECONDS);
private static final Duration MAX_WAIT = new Duration(1, SECONDS);
private static final DataSize BUFFERED_PAGE_SIZE = new DataSize(PAGES_SERDE.serialize(createPage(42)).getRetainedSizeInBytes(), BYTE);
private static final String TASK_INSTANCE_ID = "task-instance-id";
private static final ImmutableList<BigintType> TYPES = ImmutableList.of(BIGINT);
private static final OutputBufferId FIRST = new OutputBufferId(0);
private static final OutputBufferId SECOND = new OutputBufferId(1);
private ScheduledExecutorService stateNotificationExecutor;
@BeforeClass
public void setUp()
throws Exception
{
stateNotificationExecutor = newScheduledThreadPool(5, daemonThreadsNamed("test-%s"));
}
@AfterClass
public void tearDown()
throws Exception
{
if (stateNotificationExecutor != null) {
stateNotificationExecutor.shutdownNow();
stateNotificationExecutor = null;
}
}
@Test
public void testInvalidConstructorArg()
throws Exception
{
try {
createPartitionedBuffer(createInitialEmptyOutputBuffers(PARTITIONED).withBuffer(FIRST, 0).withNoMoreBufferIds(), new DataSize(0, BYTE));
fail("Expected IllegalStateException");
}
catch (IllegalArgumentException ignored) {
}
try {
createPartitionedBuffer(createInitialEmptyOutputBuffers(PARTITIONED), new DataSize(0, BYTE));
fail("Expected IllegalStateException");
}
catch (IllegalArgumentException ignored) {
}
}
@Test
public void testSimplePartitioned()
throws Exception
{
int firstPartition = 0;
int secondPartition = 1;
PartitionedOutputBuffer buffer = createPartitionedBuffer(
createInitialEmptyOutputBuffers(PARTITIONED)
.withBuffer(FIRST, firstPartition)
.withBuffer(SECOND, secondPartition)
.withNoMoreBufferIds(),
sizeOfBufferedPages(20));
// add three items to each buffer
for (int i = 0; i < 3; i++) {
addPage(buffer, createPage(i), firstPartition);
addPage(buffer, createPage(i), secondPartition);
}
// add first partition
assertQueueState(buffer, FIRST, 3, 0);
assertQueueState(buffer, SECOND, 3, 0);
// get the three elements from the first buffer
assertBufferResultEquals(TYPES, getBufferResult(buffer, FIRST, 0, sizeOfBufferedPages(10), NO_WAIT), bufferResult(0, createPage(0), createPage(1), createPage(2)));
// pages not acknowledged yet so state is the same
assertQueueState(buffer, FIRST, 3, 0);
assertQueueState(buffer, SECOND, 3, 0);
// acknowledge first three pages in the first buffer
buffer.get(FIRST, 3, sizeOfBufferedPages(10)).cancel(true);
// pages now acknowledged
assertQueueState(buffer, FIRST, 0, 3);
assertQueueState(buffer, SECOND, 3, 0);
// Fill each buffer so they both have 10 buffered pages
for (int i = 3; i < 13; i++) {
addPage(buffer, createPage(i), firstPartition);
}
// (we already added 3 pages in the second buffer)
for (int i = 3; i < 10; i++) {
addPage(buffer, createPage(i), secondPartition);
}
assertQueueState(buffer, FIRST, 10, 3);
assertQueueState(buffer, SECOND, 10, 0);
// try to add one more page, which should block
ListenableFuture<?> future = enqueuePage(buffer, createPage(13), firstPartition);
assertFalse(future.isDone());
assertQueueState(buffer, FIRST, 11, 3);
assertQueueState(buffer, SECOND, 10, 0);
// remove a page
assertBufferResultEquals(TYPES, getBufferResult(buffer, FIRST, 3, sizeOfBufferedPages(1), NO_WAIT), bufferResult(3, createPage(3)));
// page not acknowledged yet so sent count is the same
assertQueueState(buffer, FIRST, 11, 3);
assertQueueState(buffer, SECOND, 10, 0);
// we should still be blocked
assertFalse(future.isDone());
// read pages from second partition
assertBufferResultEquals(TYPES, getBufferResult(buffer, SECOND, 0, sizeOfBufferedPages(10), NO_WAIT), bufferResult(
0,
createPage(0),
createPage(1),
createPage(2),
createPage(3),
createPage(4),
createPage(5),
createPage(6),
createPage(7),
createPage(8),
createPage(9)));
// page not acknowledged yet so sent count is still zero
assertQueueState(buffer, SECOND, 10, 0);
// acknowledge the 10 pages
buffer.get(SECOND, 10, sizeOfBufferedPages(3)).cancel(true);
assertQueueState(buffer, SECOND, 0, 10);
// since we consumed some pages, the blocked page future from above should be done
assertFutureIsDone(future);
assertQueueState(buffer, FIRST, 11, 3);
assertQueueState(buffer, SECOND, 0, 10);
// we should be able to add 2 more pages
addPage(buffer, createPage(14), firstPartition);
addPage(buffer, createPage(15), firstPartition);
assertQueueState(buffer, FIRST, 13, 3);
assertQueueState(buffer, SECOND, 0, 10);
// remove a page from the first queue
assertBufferResultEquals(TYPES, getBufferResult(buffer, FIRST, 4, sizeOfBufferedPages(1), NO_WAIT), bufferResult(4, createPage(4)));
assertQueueState(buffer, FIRST, 12, 4);
assertQueueState(buffer, SECOND, 0, 10);
//
// finish the buffer
assertFalse(buffer.isFinished());
buffer.setNoMorePages();
assertQueueState(buffer, FIRST, 12, 4);
assertQueueState(buffer, SECOND, 0, 10);
buffer.abort(SECOND);
assertQueueClosed(buffer, SECOND, 10);
// not fully finished until all pages are consumed
assertFalse(buffer.isFinished());
// remove a page, not finished
assertBufferResultEquals(TYPES, getBufferResult(buffer, FIRST, 5, sizeOfBufferedPages(1), NO_WAIT), bufferResult(5, createPage(5)));
assertQueueState(buffer, FIRST, 11, 5);
assertFalse(buffer.isFinished());
// remove all remaining pages from first queue, should not be finished
BufferResult x = getBufferResult(buffer, FIRST, 6, sizeOfBufferedPages(30), NO_WAIT);
assertBufferResultEquals(TYPES, x, bufferResult(
6,
createPage(6),
createPage(7),
createPage(8),
createPage(9),
createPage(10),
createPage(11),
createPage(12),
createPage(13),
createPage(14),
createPage(15)));
assertQueueState(buffer, FIRST, 10, 6);
// acknowledge all pages from the first partition, should transition to finished state
assertBufferResultEquals(TYPES, getBufferResult(buffer, FIRST, 16, sizeOfBufferedPages(10), NO_WAIT), emptyResults(TASK_INSTANCE_ID, 16, true));
buffer.abort(FIRST);
assertQueueClosed(buffer, FIRST, 16);
assertFinished(buffer);
}
@Test
public void testDuplicateRequests()
throws Exception
{
PartitionedOutputBuffer buffer = createPartitionedBuffer(
createInitialEmptyOutputBuffers(PARTITIONED)
.withBuffer(FIRST, 0)
.withNoMoreBufferIds(),
sizeOfBufferedPages(10));
// add three items
for (int i = 0; i < 3; i++) {
addPage(buffer, createPage(i));
}
// add a queue
assertQueueState(buffer, FIRST, 3, 0);
// get the three elements
assertBufferResultEquals(TYPES, getBufferResult(buffer, FIRST, 0, sizeOfBufferedPages(10), NO_WAIT), bufferResult(0, createPage(0), createPage(1), createPage(2)));
// pages not acknowledged yet so state is the same
assertQueueState(buffer, FIRST, 3, 0);
// get the three elements again
assertBufferResultEquals(TYPES, getBufferResult(buffer, FIRST, 0, sizeOfBufferedPages(10), NO_WAIT), bufferResult(0, createPage(0), createPage(1), createPage(2)));
// pages not acknowledged yet so state is the same
assertQueueState(buffer, FIRST, 3, 0);
// acknowledge the pages
buffer.get(FIRST, 3, sizeOfBufferedPages(10)).cancel(true);
// attempt to get the three elements again
assertBufferResultEquals(TYPES, getBufferResult(buffer, FIRST, 0, sizeOfBufferedPages(10), NO_WAIT), emptyResults(TASK_INSTANCE_ID, 0, false));
// pages not acknowledged yet so state is the same
assertQueueState(buffer, FIRST, 0, 3);
}
@Test
public void testAddQueueAfterCreation()
throws Exception
{
PartitionedOutputBuffer buffer = createPartitionedBuffer(
createInitialEmptyOutputBuffers(PARTITIONED)
.withBuffer(FIRST, 0)
.withNoMoreBufferIds(),
sizeOfBufferedPages(10));
assertFalse(buffer.isFinished());
try {
buffer.setOutputBuffers(createInitialEmptyOutputBuffers(PARTITIONED)
.withBuffer(FIRST, 0)
.withBuffer(SECOND, 0)
.withNoMoreBufferIds());
fail("Expected IllegalStateException from addQueue after noMoreQueues has been called");
}
catch (IllegalArgumentException ignored) {
}
}
@Test
public void testAddAfterFinish()
throws Exception
{
PartitionedOutputBuffer buffer = createPartitionedBuffer(
createInitialEmptyOutputBuffers(PARTITIONED)
.withBuffer(FIRST, 0)
.withNoMoreBufferIds(),
sizeOfBufferedPages(10));
buffer.setNoMorePages();
addPage(buffer, createPage(0));
addPage(buffer, createPage(0));
assertEquals(buffer.getInfo().getTotalPagesSent(), 0);
}
@Test
public void testAddAfterDestroy()
throws Exception
{
PartitionedOutputBuffer buffer = createPartitionedBuffer(
createInitialEmptyOutputBuffers(PARTITIONED)
.withBuffer(FIRST, 0)
.withNoMoreBufferIds(),
sizeOfBufferedPages(10));
buffer.destroy();
addPage(buffer, createPage(0));
addPage(buffer, createPage(0));
assertEquals(buffer.getInfo().getTotalPagesSent(), 0);
}
@Test
public void testFullBufferBlocksWriter()
throws Exception
{
int firstPartition = 0;
int secondPartition = 1;
PartitionedOutputBuffer buffer = createPartitionedBuffer(
createInitialEmptyOutputBuffers(PARTITIONED)
.withBuffer(FIRST, firstPartition)
.withBuffer(SECOND, secondPartition)
.withNoMoreBufferIds(),
sizeOfBufferedPages(2));
// Add two pages, buffer is full
addPage(buffer, createPage(1), firstPartition);
addPage(buffer, createPage(2), secondPartition);
// third page is blocked
enqueuePage(buffer, createPage(3), secondPartition);
}
@Test
public void testAcknowledgementFreesWriters()
throws Exception
{
int firstPartition = 0;
int secondPartition = 1;
PartitionedOutputBuffer buffer = createPartitionedBuffer(
createInitialEmptyOutputBuffers(PARTITIONED)
.withBuffer(FIRST, firstPartition)
.withBuffer(SECOND, secondPartition)
.withNoMoreBufferIds(),
sizeOfBufferedPages(2));
// Add two pages, buffer is full
addPage(buffer, createPage(1), firstPartition);
addPage(buffer, createPage(2), firstPartition);
assertQueueState(buffer, FIRST, 2, 0);
// third page is blocked
ListenableFuture<?> future = enqueuePage(buffer, createPage(3), secondPartition);
// we should be blocked
assertFalse(future.isDone());
assertQueueState(buffer, FIRST, 2, 0);
assertQueueState(buffer, SECOND, 1, 0);
// acknowledge pages for first partition, make space in the buffer
buffer.get(FIRST, 2, sizeOfBufferedPages(10)).cancel(true);
// writer should not be blocked
assertFutureIsDone(future);
assertQueueState(buffer, SECOND, 1, 0);
}
@Test
public void testAbort()
throws Exception
{
PartitionedOutputBuffer buffer = createPartitionedBuffer(
createInitialEmptyOutputBuffers(PARTITIONED)
.withBuffer(FIRST, 0)
.withBuffer(SECOND, 1)
.withNoMoreBufferIds(),
sizeOfBufferedPages(10));
// fill the buffer
for (int i = 0; i < 5; i++) {
addPage(buffer, createPage(i), 0);
addPage(buffer, createPage(i), 1);
}
buffer.setNoMorePages();
assertBufferResultEquals(TYPES, getBufferResult(buffer, FIRST, 0, sizeOfBufferedPages(1), NO_WAIT), bufferResult(0, createPage(0)));
buffer.abort(FIRST);
assertQueueClosed(buffer, FIRST, 0);
assertBufferResultEquals(TYPES, getBufferResult(buffer, FIRST, 1, sizeOfBufferedPages(1), NO_WAIT), emptyResults(TASK_INSTANCE_ID, 0, true));
assertBufferResultEquals(TYPES, getBufferResult(buffer, SECOND, 0, sizeOfBufferedPages(1), NO_WAIT), bufferResult(0, createPage(0)));
buffer.abort(SECOND);
assertQueueClosed(buffer, SECOND, 0);
assertFinished(buffer);
assertBufferResultEquals(TYPES, getBufferResult(buffer, SECOND, 1, sizeOfBufferedPages(1), NO_WAIT), emptyResults(TASK_INSTANCE_ID, 0, true));
}
@Test
public void testFinishClosesEmptyQueues()
throws Exception
{
PartitionedOutputBuffer buffer = createPartitionedBuffer(
createInitialEmptyOutputBuffers(PARTITIONED)
.withBuffer(FIRST, 0)
.withBuffer(SECOND, 1)
.withNoMoreBufferIds(),
sizeOfBufferedPages(10));
// finish while queues are empty
buffer.setNoMorePages();
assertQueueState(buffer, FIRST, 0, 0);
assertQueueState(buffer, SECOND, 0, 0);
buffer.abort(FIRST);
buffer.abort(SECOND);
assertQueueClosed(buffer, FIRST, 0);
assertQueueClosed(buffer, SECOND, 0);
}
@Test
public void testAbortFreesReader()
throws Exception
{
PartitionedOutputBuffer buffer = createPartitionedBuffer(
createInitialEmptyOutputBuffers(PARTITIONED)
.withBuffer(FIRST, 0)
.withNoMoreBufferIds(),
sizeOfBufferedPages(5));
assertFalse(buffer.isFinished());
// attempt to get a page
ListenableFuture<BufferResult> future = buffer.get(FIRST, 0, sizeOfBufferedPages(10));
// verify we are waiting for a page
assertFalse(future.isDone());
// add one item
addPage(buffer, createPage(0));
assertTrue(future.isDone());
// verify we got one page
assertBufferResultEquals(TYPES, getFuture(future, NO_WAIT), bufferResult(0, createPage(0)));
// attempt to get another page, and verify we are blocked
future = buffer.get(FIRST, 1, sizeOfBufferedPages(10));
assertFalse(future.isDone());
// abort the buffer
buffer.abort(FIRST);
// verify the future completed
// partitioned buffer does not return a "complete" result in this case, but it doesn't matter
assertBufferResultEquals(TYPES, getFuture(future, NO_WAIT), emptyResults(TASK_INSTANCE_ID, 1, false));
// further requests will see a completed result
assertQueueClosed(buffer, FIRST, 1);
}
@Test
public void testFinishFreesReader()
throws Exception
{
PartitionedOutputBuffer buffer = createPartitionedBuffer(
createInitialEmptyOutputBuffers(PARTITIONED)
.withBuffer(FIRST, 0)
.withNoMoreBufferIds(),
sizeOfBufferedPages(5));
assertFalse(buffer.isFinished());
// attempt to get a page
ListenableFuture<BufferResult> future = buffer.get(FIRST, 0, sizeOfBufferedPages(10));
// verify we are waiting for a page
assertFalse(future.isDone());
// add one item
addPage(buffer, createPage(0));
// verify we got one page
assertBufferResultEquals(TYPES, getFuture(future, NO_WAIT), bufferResult(0, createPage(0)));
// attempt to get another page, and verify we are blocked
future = buffer.get(FIRST, 1, sizeOfBufferedPages(10));
assertFalse(future.isDone());
// finish the buffer
buffer.setNoMorePages();
assertQueueState(buffer, FIRST, 0, 1);
// verify the future completed
assertBufferResultEquals(TYPES, getFuture(future, NO_WAIT), emptyResults(TASK_INSTANCE_ID, 1, true));
}
@Test
public void testFinishFreesWriter()
throws Exception
{
PartitionedOutputBuffer buffer = createPartitionedBuffer(
createInitialEmptyOutputBuffers(PARTITIONED)
.withBuffer(FIRST, 0)
.withNoMoreBufferIds(),
sizeOfBufferedPages(5));
assertFalse(buffer.isFinished());
// fill the buffer
for (int i = 0; i < 5; i++) {
addPage(buffer, createPage(i));
}
// enqueue the addition two pages more pages
ListenableFuture<?> firstEnqueuePage = enqueuePage(buffer, createPage(5));
ListenableFuture<?> secondEnqueuePage = enqueuePage(buffer, createPage(6));
// get and acknowledge one page
assertBufferResultEquals(TYPES, getBufferResult(buffer, FIRST, 0, sizeOfBufferedPages(1), MAX_WAIT), bufferResult(0, createPage(0)));
buffer.get(FIRST, 1, sizeOfBufferedPages(1)).cancel(true);
// verify we are still blocked because the buffer is full
assertFalse(firstEnqueuePage.isDone());
assertFalse(secondEnqueuePage.isDone());
// finish the query
buffer.setNoMorePages();
assertFalse(buffer.isFinished());
// verify futures are complete
assertFutureIsDone(firstEnqueuePage);
assertFutureIsDone(secondEnqueuePage);
// get and acknowledge the last 6 pages
assertBufferResultEquals(TYPES, getBufferResult(buffer, FIRST, 1, sizeOfBufferedPages(100), NO_WAIT),
bufferResult(1, createPage(1), createPage(2), createPage(3), createPage(4), createPage(5), createPage(6)));
assertBufferResultEquals(TYPES, getBufferResult(buffer, FIRST, 7, sizeOfBufferedPages(100), NO_WAIT), emptyResults(TASK_INSTANCE_ID, 7, true));
buffer.abort(FIRST);
// verify finished
assertFinished(buffer);
}
@Test
public void testDestroyFreesReader()
throws Exception
{
PartitionedOutputBuffer buffer = createPartitionedBuffer(
createInitialEmptyOutputBuffers(PARTITIONED)
.withBuffer(FIRST, 0)
.withNoMoreBufferIds(),
sizeOfBufferedPages(5));
assertFalse(buffer.isFinished());
// attempt to get a page
ListenableFuture<BufferResult> future = buffer.get(FIRST, 0, sizeOfBufferedPages(10));
// verify we are waiting for a page
assertFalse(future.isDone());
// add one page
addPage(buffer, createPage(0));
// verify we got one page
assertBufferResultEquals(TYPES, getFuture(future, NO_WAIT), bufferResult(0, createPage(0)));
// attempt to get another page, and verify we are blocked
future = buffer.get(FIRST, 1, sizeOfBufferedPages(10));
assertFalse(future.isDone());
// destroy the buffer
buffer.destroy();
assertQueueClosed(buffer, FIRST, 1);
// verify the future completed
assertBufferResultEquals(TYPES, getFuture(future, NO_WAIT), emptyResults(TASK_INSTANCE_ID, 1, false));
}
@Test
public void testDestroyFreesWriter()
throws Exception
{
PartitionedOutputBuffer buffer = createPartitionedBuffer(
createInitialEmptyOutputBuffers(PARTITIONED)
.withBuffer(FIRST, 0)
.withNoMoreBufferIds(),
sizeOfBufferedPages(5));
assertFalse(buffer.isFinished());
// fill the buffer
for (int i = 0; i < 5; i++) {
addPage(buffer, createPage(i));
}
// add two pages to the buffer queue
ListenableFuture<?> firstEnqueuePage = enqueuePage(buffer, createPage(5));
ListenableFuture<?> secondEnqueuePage = enqueuePage(buffer, createPage(6));
// get and acknowledge one page
assertBufferResultEquals(TYPES, getBufferResult(buffer, FIRST, 0, sizeOfBufferedPages(1), MAX_WAIT), bufferResult(0, createPage(0)));
buffer.get(FIRST, 1, sizeOfBufferedPages(1)).cancel(true);
// verify we are still blocked because the buffer is full
assertFalse(firstEnqueuePage.isDone());
assertFalse(secondEnqueuePage.isDone());
// destroy the buffer (i.e., cancel the query)
buffer.destroy();
assertFinished(buffer);
// verify the futures are completed
assertFutureIsDone(firstEnqueuePage);
assertFutureIsDone(secondEnqueuePage);
}
@Test
public void testFailDoesNotFreeReader()
throws Exception
{
PartitionedOutputBuffer buffer = createPartitionedBuffer(
createInitialEmptyOutputBuffers(PARTITIONED)
.withBuffer(FIRST, 0)
.withNoMoreBufferIds(),
sizeOfBufferedPages(5));
assertFalse(buffer.isFinished());
// attempt to get a page
ListenableFuture<BufferResult> future = buffer.get(FIRST, 0, sizeOfBufferedPages(10));
// verify we are waiting for a page
assertFalse(future.isDone());
// add one page
addPage(buffer, createPage(0));
// verify we got one page
assertBufferResultEquals(TYPES, getFuture(future, NO_WAIT), bufferResult(0, createPage(0)));
// attempt to get another page, and verify we are blocked
future = buffer.get(FIRST, 1, sizeOfBufferedPages(10));
assertFalse(future.isDone());
// fail the buffer
buffer.fail();
// future should have not finished
assertFalse(future.isDone());
// attempt to get another page, and verify we are blocked
future = buffer.get(FIRST, 1, sizeOfBufferedPages(10));
assertFalse(future.isDone());
}
@Test
public void testFailFreesWriter()
throws Exception
{
PartitionedOutputBuffer buffer = createPartitionedBuffer(
createInitialEmptyOutputBuffers(PARTITIONED)
.withBuffer(FIRST, 0)
.withNoMoreBufferIds(),
sizeOfBufferedPages(5));
assertFalse(buffer.isFinished());
// fill the buffer
for (int i = 0; i < 5; i++) {
addPage(buffer, createPage(i));
}
// add two pages to the buffer queue
ListenableFuture<?> firstEnqueuePage = enqueuePage(buffer, createPage(5));
ListenableFuture<?> secondEnqueuePage = enqueuePage(buffer, createPage(6));
// get and acknowledge one page
assertBufferResultEquals(TYPES, getBufferResult(buffer, FIRST, 0, sizeOfBufferedPages(1), MAX_WAIT), bufferResult(0, createPage(0)));
buffer.get(FIRST, 1, sizeOfBufferedPages(1)).cancel(true);
// verify we are still blocked because the buffer is full
assertFalse(firstEnqueuePage.isDone());
assertFalse(secondEnqueuePage.isDone());
// fail the buffer (i.e., cancel the query)
buffer.fail();
assertFalse(buffer.isFinished());
// verify the futures are completed
assertFutureIsDone(firstEnqueuePage);
assertFutureIsDone(secondEnqueuePage);
}
@Test
public void testBufferCompletion()
throws Exception
{
PartitionedOutputBuffer buffer = createPartitionedBuffer(
createInitialEmptyOutputBuffers(PARTITIONED)
.withBuffer(FIRST, 0)
.withNoMoreBufferIds(),
sizeOfBufferedPages(5));
assertFalse(buffer.isFinished());
// fill the buffer
List<Page> pages = new ArrayList<>();
for (int i = 0; i < 5; i++) {
Page page = createPage(i);
addPage(buffer, page);
pages.add(page);
}
buffer.setNoMorePages();
// get and acknowledge 5 pages
assertBufferResultEquals(TYPES, getBufferResult(buffer, FIRST, 0, sizeOfBufferedPages(5), MAX_WAIT), bufferResult(0, pages));
// buffer is not finished
assertFalse(buffer.isFinished());
// there are no more pages and no more buffers, but buffer is not finished because it didn't receive an acknowledgement yet
assertFalse(buffer.isFinished());
// ask the buffer to finish
buffer.abort(FIRST);
// verify that the buffer is finished
assertTrue(buffer.isFinished());
}
public static BufferResult getBufferResult(PartitionedOutputBuffer buffer, OutputBufferId bufferId, long sequenceId, DataSize maxSize, Duration maxWait)
{
ListenableFuture<BufferResult> future = buffer.get(bufferId, sequenceId, maxSize);
return getFuture(future, maxWait);
}
public static BufferResult getFuture(ListenableFuture<BufferResult> future, Duration maxWait)
{
return tryGetFutureValue(future, (int) maxWait.toMillis(), MILLISECONDS).get();
}
private static ListenableFuture<?> enqueuePage(PartitionedOutputBuffer buffer, Page page)
{
ListenableFuture<?> future = buffer.enqueue(ImmutableList.of(PAGES_SERDE.serialize(page)));
assertFalse(future.isDone());
return future;
}
private static ListenableFuture<?> enqueuePage(PartitionedOutputBuffer buffer, Page page, int partition)
{
ListenableFuture<?> future = buffer.enqueue(partition, ImmutableList.of(PAGES_SERDE.serialize(page)));
assertFalse(future.isDone());
return future;
}
private static void addPage(PartitionedOutputBuffer buffer, Page page)
{
assertTrue(buffer.enqueue(ImmutableList.of(PAGES_SERDE.serialize(page))).isDone(), "Expected add page to not block");
}
private static void addPage(PartitionedOutputBuffer buffer, Page page, int partition)
{
assertTrue(buffer.enqueue(partition, ImmutableList.of(PAGES_SERDE.serialize(page))).isDone(), "Expected add page to not block");
}
private static void assertQueueState(
PartitionedOutputBuffer buffer,
OutputBufferId bufferId,
int bufferedPages,
int pagesSent)
{
assertEquals(
getBufferInfo(buffer, bufferId),
new BufferInfo(
bufferId,
false,
bufferedPages,
pagesSent,
new PageBufferInfo(
bufferId.getId(),
bufferedPages,
sizeOfBufferedPages(bufferedPages).toBytes(),
bufferedPages + pagesSent, // every page has one row
bufferedPages + pagesSent)));
}
@SuppressWarnings("ConstantConditions")
private static void assertQueueClosed(PartitionedOutputBuffer buffer, OutputBufferId bufferId, int pagesSent)
{
BufferInfo bufferInfo = getBufferInfo(buffer, bufferId);
assertEquals(bufferInfo.getBufferedPages(), 0);
assertEquals(bufferInfo.getPagesSent(), pagesSent);
assertEquals(bufferInfo.isFinished(), true);
}
private PartitionedOutputBuffer createPartitionedBuffer(OutputBuffers buffers, DataSize dataSize)
{
return new PartitionedOutputBuffer(
TASK_INSTANCE_ID,
new StateMachine<>("bufferState", stateNotificationExecutor, OPEN, TERMINAL_BUFFER_STATES),
buffers,
dataSize,
ignored -> { },
stateNotificationExecutor);
}
private static BufferInfo getBufferInfo(PartitionedOutputBuffer buffer, OutputBufferId bufferId)
{
for (BufferInfo bufferInfo : buffer.getInfo().getBuffers()) {
if (bufferInfo.getBufferId().equals(bufferId)) {
return bufferInfo;
}
}
return null;
}
private static void assertFinished(PartitionedOutputBuffer buffer)
throws Exception
{
assertTrue(buffer.isFinished());
for (BufferInfo bufferInfo : buffer.getInfo().getBuffers()) {
assertTrue(bufferInfo.isFinished());
assertEquals(bufferInfo.getBufferedPages(), 0);
}
}
private static void assertBufferResultEquals(List<? extends Type> types, BufferResult actual, BufferResult expected)
{
assertEquals(actual.getSerializedPages().size(), expected.getSerializedPages().size());
assertEquals(actual.getToken(), expected.getToken());
for (int i = 0; i < actual.getSerializedPages().size(); i++) {
// three copies of this function appear to exist
Page actualPage = PAGES_SERDE.deserialize(actual.getSerializedPages().get(i));
Page expectedPage = PAGES_SERDE.deserialize(expected.getSerializedPages().get(i));
assertEquals(actualPage.getChannelCount(), expectedPage.getChannelCount());
PageAssertions.assertPageEquals(types, actualPage, expectedPage);
}
assertEquals(actual.isBufferComplete(), expected.isBufferComplete());
}
private static void assertFutureIsDone(Future<?> future)
{
tryGetFutureValue(future, 5, SECONDS);
assertTrue(future.isDone());
}
public static BufferResult bufferResult(long token, Page firstPage, Page... otherPages)
{
List<Page> pages = ImmutableList.<Page>builder().add(firstPage).add(otherPages).build();
return bufferResult(token, pages);
}
public static BufferResult bufferResult(long token, List<Page> pages)
{
checkArgument(!pages.isEmpty(), "pages is empty");
return new BufferResult(
TASK_INSTANCE_ID,
token,
token + pages.size(),
false,
pages.stream()
.map(PAGES_SERDE::serialize)
.collect(Collectors.toList()));
}
private static Page createPage(int i)
{
return new Page(BlockAssertions.createLongsBlock(i));
}
public static DataSize sizeOfBufferedPages(int count)
{
return new DataSize(BUFFERED_PAGE_SIZE.toBytes() * count, BYTE);
}
}