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/*
* 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.drill.exec;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertTrue;
import java.nio.file.Paths;
import java.util.List;
import org.apache.drill.test.ClientFixture;
import org.apache.drill.test.ClusterFixture;
import org.apache.drill.test.ClusterFixtureBuilder;
import org.apache.drill.test.ClusterTest;
import org.apache.drill.test.QueryBuilder.QuerySummary;
import org.apache.drill.test.rowSet.RowSet;
import org.apache.drill.test.rowSet.RowSetReader;
import org.apache.drill.categories.PlannerTest;
import org.apache.drill.categories.SlowTest;
import org.apache.drill.exec.proto.BitControl.PlanFragment;
import org.apache.drill.exec.proto.CoordinationProtos.DrillbitEndpoint;
import org.apache.drill.exec.proto.UserBitShared.QueryType;
import org.apache.drill.exec.proto.UserProtos.QueryPlanFragments;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Test;
import org.junit.experimental.categories.Category;
import org.apache.drill.shaded.guava.com.google.common.collect.Lists;
/**
* Class to test different planning use cases (separate from query execution)
*
*/
@Category({SlowTest.class, PlannerTest.class})
public class DrillSeparatePlanningTest extends ClusterTest {
@BeforeClass
public static void setupFiles() {
dirTestWatcher.copyResourceToRoot(Paths.get("multilevel", "json"));
dirTestWatcher.copyResourceToRoot(Paths.get("multilevel", "csv"));
}
@Before
public void testSetup() throws Exception {
ClusterFixtureBuilder builder = ClusterFixture.builder(dirTestWatcher)
.clusterSize(2);
startCluster(builder);
}
@Test(timeout=60_000)
public void testSingleFragmentQuery() throws Exception {
final String query = "SELECT * FROM cp.`employee.json` where employee_id > 1 and employee_id < 1000";
QueryPlanFragments planFragments = getFragmentsHelper(query);
assertNotNull(planFragments);
assertEquals(1, planFragments.getFragmentsCount());
assertTrue(planFragments.getFragments(0).getLeafFragment());
QuerySummary summary = client.queryBuilder().plan(planFragments.getFragmentsList()).run();
assertEquals(997, summary.recordCount());
}
@Test(timeout=60_000)
public void testMultiMinorFragmentSimpleQuery() throws Exception {
final String query = "SELECT o_orderkey FROM dfs.`multilevel/json`";
QueryPlanFragments planFragments = getFragmentsHelper(query);
assertNotNull(planFragments);
assertTrue((planFragments.getFragmentsCount() > 1));
for (PlanFragment planFragment : planFragments.getFragmentsList()) {
assertTrue(planFragment.getLeafFragment());
}
int rowCount = getResultsHelper(planFragments);
assertEquals(120, rowCount);
}
@Test(timeout=60_000)
public void testMultiMinorFragmentComplexQuery() throws Exception {
final String query = "SELECT dir0, sum(o_totalprice) FROM dfs.`multilevel/json` group by dir0 order by dir0";
QueryPlanFragments planFragments = getFragmentsHelper(query);
assertNotNull(planFragments);
assertTrue((planFragments.getFragmentsCount() > 1));
for ( PlanFragment planFragment : planFragments.getFragmentsList()) {
assertTrue(planFragment.getLeafFragment());
}
int rowCount = getResultsHelper(planFragments);
assertEquals(8, rowCount);
}
@Test(timeout=60_000)
public void testPlanningNoSplit() throws Exception {
final String query = "SELECT dir0, sum(o_totalprice) FROM dfs.`multilevel/json` group by dir0 order by dir0";
client.alterSession("planner.slice_target", 1);
try {
final QueryPlanFragments planFragments = client.planQuery(query);
assertNotNull(planFragments);
assertTrue((planFragments.getFragmentsCount() > 1));
PlanFragment rootFragment = planFragments.getFragments(0);
assertFalse(rootFragment.getLeafFragment());
QuerySummary summary = client.queryBuilder().plan(planFragments.getFragmentsList()).run();
assertEquals(3, summary.recordCount());
}
finally {
client.resetSession("planner.slice_target");
}
}
@Test(timeout=60_000)
public void testPlanningNegative() throws Exception {
final String query = "SELECT dir0, sum(o_totalprice) FROM dfs.`multilevel/json` group by dir0 order by dir0";
// LOGICAL is not supported
final QueryPlanFragments planFragments = client.planQuery(QueryType.LOGICAL, query, false);
assertNotNull(planFragments);
assertNotNull(planFragments.getError());
assertTrue(planFragments.getFragmentsCount()==0);
}
@Test(timeout=60_000)
public void testPlanning() throws Exception {
final String query = "SELECT dir0, columns[3] FROM dfs.`multilevel/csv` order by dir0";
client.alterSession("planner.slice_target", 1);
try {
// Original version, but no reason to dump output to test results.
// long rows = client.queryBuilder().sql(query).print(Format.TSV, VectorUtil.DEFAULT_COLUMN_WIDTH);
QuerySummary summary = client.queryBuilder().sql(query).run();
assertEquals(120, summary.recordCount());
}
finally {
client.resetSession("planner.slice_target");
}
}
private QueryPlanFragments getFragmentsHelper(final String query) {
client.alterSession("planner.slice_target", 1);
try {
QueryPlanFragments planFragments = client.planQuery(QueryType.SQL, query, true);
return planFragments;
}
finally {
client.resetSession("planner.slice_target");
}
}
private int getResultsHelper(final QueryPlanFragments planFragments) throws Exception {
int totalRows = 0;
for (PlanFragment fragment : planFragments.getFragmentsList()) {
DrillbitEndpoint assignedNode = fragment.getAssignment();
ClientFixture fragmentClient = cluster.client(assignedNode.getAddress(), assignedNode.getUserPort());
RowSet rowSet = fragmentClient.queryBuilder().sql("select hostname, user_port from sys.drillbits where `current`=true").rowSet();
assertEquals(1, rowSet.rowCount());
RowSetReader reader = rowSet.reader();
assertTrue(reader.next());
String host = reader.scalar("hostname").getString();
int port = reader.scalar("user_port").getInt();
rowSet.clear();
assertEquals(assignedNode.getAddress(), host);
assertEquals(assignedNode.getUserPort(), port);
List<PlanFragment> fragmentList = Lists.newArrayList();
fragmentList.add(fragment);
QuerySummary summary = fragmentClient.queryBuilder().plan(fragmentList).run();
totalRows += summary.recordCount();
fragmentClient.close();
}
return totalRows;
}
}
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