Github user ajantha-bhat commented on a diff in the pull request:
https://github.com/apache/carbondata/pull/2850#discussion_r229183542
--- Diff:
store/sdk/src/test/java/org/apache/carbondata/sdk/file/ConcurrentSdkReaderTest.java
---
@@ -0,0 +1,153 @@
+/*
+ * 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.carbondata.sdk.file;
+
+import java.io.File;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.Callable;
+import java.util.concurrent.ExecutionException;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+import java.util.concurrent.Future;
+
+import org.apache.carbondata.core.metadata.datatype.DataTypes;
+
+import junit.framework.TestCase;
+import org.apache.commons.io.FileUtils;
+import org.apache.commons.io.IOExceptionWithCause;
+import org.junit.*;
+
+/**
+ * multi-thread Test suite for {@link CarbonReader}
+ */
+public class ConcurrentSdkReaderTest {
+
+ private static final String dataDir = "./testReadFiles";
+
+ @Before
+ @After
+ public void cleanTestData() {
+ try {
+ FileUtils.deleteDirectory(new File(dataDir));
+ } catch (Exception e) {
+ e.printStackTrace();
+ Assert.fail(e.getMessage());
+ }
+ }
+
+ private void writeTestData(long numRows, int tableBlockSize) {
+ Field[] fields = new Field[2];
+ fields[0] = new Field("stringField", DataTypes.STRING);
+ fields[1] = new Field("intField", DataTypes.INT);
+
+ Map<String, String> tableProperties = new HashMap<>();
+ tableProperties.put("table_blocksize",
Integer.toString(tableBlockSize));
+
+ CarbonWriterBuilder builder =
+
CarbonWriter.builder().outputPath(dataDir).withTableProperties(tableProperties)
+ .withCsvInput(new Schema(fields));
+
+ try {
+ CarbonWriter writer = builder.build();
+
+ for (long i = 0; i < numRows; ++i) {
+ writer.write(new String[] { "robot_" + i, String.valueOf(i) });
+ }
+ writer.close();
+ } catch (Exception e) {
+ e.printStackTrace();
+ Assert.fail(e.getMessage());
+ }
+ }
+
+ @Test public void testReadParallely() throws IOException,
InterruptedException {
+ long numRows = 10000000;
--- End diff --
We must not add huge record test case in UT. PR builder time for all the PR
will affect by this. Locally test with huge data but update UT with fewer rows.
say 10 rows.
---
