[GitHub] sohami commented on a change in pull request #1628: DRILL-7016: Wrong query result with RuntimeFilter enabled when order …

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sohami commented on a change in pull request #1628: DRILL-7016: Wrong query result with RuntimeFilter enabled when order …
URL: https://github.com/apache/drill/pull/1628#discussion_r252827074
 
 

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 File path: exec/java-exec/src/test/java/org/apache/drill/exec/physical/impl/join/TestHashJoinJPPDCorrectness.java
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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.physical.impl.join;
+
+import org.apache.drill.categories.SqlTest;
+import org.apache.drill.exec.ExecConstants;
+import org.apache.drill.exec.proto.UserProtos;
+import org.apache.drill.test.ClusterFixture;
+import org.apache.drill.test.ClusterTest;
+import org.junit.After;
+import org.junit.BeforeClass;
+import org.junit.Test;
+import org.junit.experimental.categories.Category;
+
+import static org.junit.Assert.assertTrue;
+import java.nio.file.Paths;
+
+@Category(SqlTest.class)
+public class TestHashJoinJPPDCorrectness extends ClusterTest {
+  //private static final org.slf4j.Logger logger = org.slf4j.LoggerFactory.getLogger(TestHashJoinJPPDCorrectness.class);
+
+  private final String runtimeFilterOption = "ALTER SESSION SET `" + ExecConstants.HASHJOIN_ENABLE_RUNTIME_FILTER_KEY
+    + "` = %s";
+
+  private final String runtimeFilterWaitOption = "ALTER SESSION SET `" + ExecConstants
+    .HASHJOIN_RUNTIME_FILTER_WAITING_ENABLE_KEY + "` = %s";
+
+  private final String runtimeFilterWaitTimeOption = "ALTER SESSION SET `" + ExecConstants
+    .HASHJOIN_RUNTIME_FILTER_MAX_WAITING_TIME_KEY + "` = %d";
+
+  @BeforeClass
+  public static void setUp() throws Exception {
+    dirTestWatcher.copyResourceToRoot(Paths.get("tpchmulti"));
+    // Reduce the slice target so that there are multiple minor fragments with exchange, otherwise RuntimeFilter
+    // will not be inserted in the plan
+    startCluster(ClusterFixture.builder(dirTestWatcher)
+      .clusterSize(2)
+      .maxParallelization(1)
+      .systemOption(ExecConstants.SLICE_TARGET, 10));
+  }
+
+  @After
+  public void tearDown() {
+    client.resetSession(ExecConstants.HASHJOIN_ENABLE_RUNTIME_FILTER_KEY);
+    client.resetSession(ExecConstants.HASHJOIN_RUNTIME_FILTER_WAITING_ENABLE_KEY);
+  }
+
+  /**
+   * Test to make sure runtime filter is inserted in the plan. This is to ensure that with current cluster setup and
+   * system options distributed plan is generated rather than single fragment plan. Since in later case RuntimeFilter
+   * will not be inserted.
+   * @throws Exception
+   */
+  @Test
+  public void testRuntimeFilterPresentInPlan() throws Exception {
+    String sql = "SELECT l.n_name, r.r_name FROM dfs.`tpchmulti/nation` l, dfs.`tpchmulti/region/` r where " +
+      "l.n_regionkey = r.r_regionkey";
+
+    // don't use client.alterSession since it's an async request and hence there is no guarantee than runtime filter
 
 Review comment:
   Thanks for catching this. So earlier usage was throwing exception which `runSqlSilently` was consuming and hence during debugging I got an impression that second request was sent before first one is completed. But as you mentioned the listener in `run` is waiting for completion to create summary and hence its not async. Updated to use `alterSession` correctly.

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