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175
presto-tests/src/test/java/com/facebook/presto/tests/TestHistoryBasedRetry.java
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| /* | ||
| * 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.tests; | ||
|
|
||
| import com.facebook.presto.Session; | ||
| import com.facebook.presto.server.BasicQueryInfo; | ||
| import com.facebook.presto.spi.Plugin; | ||
| import com.facebook.presto.spi.statistics.HistoryBasedPlanStatisticsProvider; | ||
| import com.facebook.presto.testing.InMemoryHistoryBasedPlanStatisticsProvider; | ||
| import com.facebook.presto.testing.QueryRunner; | ||
| import com.facebook.presto.tpch.TpchPlugin; | ||
| import com.google.common.collect.ImmutableList; | ||
| import com.google.common.collect.ImmutableMap; | ||
| import com.google.common.util.concurrent.ListenableFuture; | ||
| import com.google.common.util.concurrent.ListeningExecutorService; | ||
| import com.google.common.util.concurrent.MoreExecutors; | ||
| 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.ExecutionException; | ||
|
|
||
| import static com.facebook.presto.SystemSessionProperties.QUERY_RETRY_LIMIT; | ||
| import static com.facebook.presto.SystemSessionProperties.RESTRICT_HISTORY_BASED_OPTIMIZATION_TO_COMPLEX_QUERY; | ||
| import static com.facebook.presto.SystemSessionProperties.RETRY_QUERY_WITH_HISTORY_BASED_OPTIMIZATION; | ||
| import static com.facebook.presto.SystemSessionProperties.TRACK_HISTORY_BASED_PLAN_STATISTICS; | ||
| import static com.facebook.presto.SystemSessionProperties.TRACK_HISTORY_STATS_FROM_FAILED_QUERIES; | ||
| import static com.facebook.presto.SystemSessionProperties.USE_HISTORY_BASED_PLAN_STATISTICS; | ||
| import static com.facebook.presto.testing.TestingSession.testSessionBuilder; | ||
| import static java.util.concurrent.Executors.newCachedThreadPool; | ||
| import static org.testng.Assert.assertEquals; | ||
|
|
||
| public class TestHistoryBasedRetry | ||
| { | ||
| private ListeningExecutorService executor; | ||
|
|
||
| @BeforeClass(alwaysRun = true) | ||
| public void setUp() | ||
| { | ||
| executor = MoreExecutors.listeningDecorator(newCachedThreadPool()); | ||
| } | ||
|
|
||
| @AfterClass(alwaysRun = true) | ||
| public void shutdown() | ||
| { | ||
| executor.shutdownNow(); | ||
| } | ||
|
|
||
| @Test | ||
| public void testQueryRetryWithHBONaturalFail() | ||
| throws Exception | ||
| { | ||
| int retryLimit = 3; | ||
| int retryNum = 0; | ||
|
|
||
| String sql = "SELECT o.orderkey, l.partkey, l.mapcol[o.orderkey] FROM (select orderkey, partkey, mapcol " + | ||
| "FROM (SELECT *, map(array[1], array[2]) mapcol FROM lineitem)) l " + | ||
| "JOIN orders o ON l.partkey = o.custkey WHERE length(comment) > 10"; | ||
|
|
||
| Session session = Session.builder(createSession()) | ||
| .setSystemProperty(QUERY_RETRY_LIMIT, String.valueOf(retryLimit)) | ||
| .build(); | ||
|
|
||
| try (QueryRunner queryRunner = createQueryRunner(session)) { | ||
| List<ListenableFuture<?>> queryFutures = new ArrayList<>(); | ||
|
|
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| ListenableFuture<?> future = executor.submit(() -> queryRunner.execute(session, sql)); | ||
| queryFutures.add(future); | ||
|
|
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| waitForQueryToFinish(queryFutures); | ||
|
|
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| retryNum = getRetryCount(queryRunner); | ||
| } | ||
|
|
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| assertEquals(retryNum, 1, "Retry count should be one as the query plan has changed."); | ||
| } | ||
|
|
||
| @Test | ||
| public void testQueryRetryWithHBOForceFail() | ||
| throws Exception | ||
| { | ||
| int retryNum = 0; | ||
|
|
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| String query = "SELECT if(COUNT(*)=1,1,fail(1, 'failed')) FROM part p LEFT JOIN lineitem l ON p.partkey = l.partkey WHERE l.comment like '%a%'"; | ||
|
|
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| Session session = Session.builder(createSession()) | ||
| .build(); | ||
|
|
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| try (QueryRunner queryRunner = createQueryRunner(session)) { | ||
| List<ListenableFuture<?>> queryFutures = new ArrayList<>(); | ||
|
|
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| ListenableFuture<?> future = executor.submit(() -> queryRunner.execute(session, query)); | ||
| queryFutures.add(future); | ||
|
|
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| waitForQueryToFinish(queryFutures); | ||
|
|
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| retryNum = getRetryCount(queryRunner); | ||
| } | ||
|
|
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| assertEquals(retryNum, 1, "Retry count should be one as the query plan has changed and is the max retry limit."); | ||
| } | ||
|
|
||
| private int getRetryCount(QueryRunner queryRunner) | ||
| { | ||
| int retryNum = 0; | ||
|
|
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| DistributedQueryRunner distributedQueryRunner = (DistributedQueryRunner) queryRunner; | ||
| List<BasicQueryInfo> queryInfos = distributedQueryRunner.getCoordinator().getQueryManager().getQueries(); | ||
|
|
||
| for (BasicQueryInfo info : queryInfos) { | ||
| if (info.getQuery().contains("-- retry query")) { | ||
| retryNum++; | ||
| } | ||
| } | ||
| return retryNum; | ||
| } | ||
|
|
||
| private void waitForQueryToFinish(List<ListenableFuture<?>> queryFutures) | ||
| throws Exception | ||
| { | ||
| for (ListenableFuture<?> future : queryFutures) { | ||
| try { | ||
| future.get(); | ||
| } | ||
| catch (ExecutionException e) { | ||
| //it is okay to fail, we are forcing it to test the retry mechanism | ||
| } | ||
| } | ||
| } | ||
|
|
||
| private QueryRunner createQueryRunner(Session session) | ||
| throws Exception | ||
| { | ||
| QueryRunner queryRunner = new DistributedQueryRunner(session, 1); | ||
|
|
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| queryRunner.installPlugin(new TpchPlugin()); | ||
| queryRunner.createCatalog("tpch", "tpch", ImmutableMap.of("tpch.splits-per-node", "3")); | ||
|
|
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| queryRunner.installPlugin(new Plugin() | ||
| { | ||
| @Override | ||
| public Iterable<HistoryBasedPlanStatisticsProvider> getHistoryBasedPlanStatisticsProviders() | ||
| { | ||
| return ImmutableList.of(new InMemoryHistoryBasedPlanStatisticsProvider()); | ||
| } | ||
| }); | ||
| return queryRunner; | ||
| } | ||
|
|
||
| private static Session createSession() | ||
| { | ||
| return testSessionBuilder() | ||
| .setCatalog("tpch") | ||
| .setSchema("tiny") | ||
| .setSystemProperty(USE_HISTORY_BASED_PLAN_STATISTICS, "true") | ||
| .setSystemProperty(TRACK_HISTORY_BASED_PLAN_STATISTICS, "true") | ||
| .setSystemProperty(RETRY_QUERY_WITH_HISTORY_BASED_OPTIMIZATION, "true") | ||
| .setSystemProperty(RESTRICT_HISTORY_BASED_OPTIMIZATION_TO_COMPLEX_QUERY, "false") | ||
| .setSystemProperty(TRACK_HISTORY_STATS_FROM_FAILED_QUERIES, "true") | ||
| .build(); | ||
| } | ||
| } |