Java tutorial
/* * 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 com.facebook.hiveio.output; import com.facebook.hiveio.common.BackoffRetryTask; import com.facebook.hiveio.common.FaultyThriftHiveMetastore; import com.facebook.hiveio.common.HiveIOTestBase; import com.facebook.hiveio.common.HiveMetastores; import org.apache.hadoop.conf.Configuration; import org.apache.hadoop.mapred.HackJobContext; import org.apache.hadoop.mapred.HackTaskAttemptContext; import org.apache.hadoop.mapred.JobConf; import org.apache.hadoop.mapred.TaskAttemptID; import org.apache.hadoop.mapreduce.JobContext; import org.apache.hadoop.mapreduce.TaskAttemptContext; import org.testng.annotations.Test; import java.io.IOException; import static org.testng.Assert.assertEquals; import static org.testng.Assert.fail; public class FaultyCheckOutputSpecsTest extends HiveIOTestBase { private final String PROFILE_ID = "x"; @Test(expectedExceptions = IOException.class) public void testExceptionAfterTooManyRetriesWhenTableDoesNotExist() throws Exception { HiveMetastores.setTestClient(new FaultyThriftHiveMetastore(BackoffRetryTask.NUM_TRIES.getDefaultValue())); Configuration conf = new Configuration(); conf.setLong(BackoffRetryTask.INITIAL_RETRY_DELAY_MSEC.getKey(), 100); HiveOutputDescription outputDesc = new HiveOutputDescription(); outputDesc.getTableDesc().setTableName("doesnt-exist"); OutputConf outputConf = new OutputConf(conf, PROFILE_ID); outputConf.writeOutputDescription(outputDesc); HiveApiOutputFormat outputFormat = new HiveApiOutputFormat(); outputFormat.setMyProfileId(PROFILE_ID); JobConf jobConf = new JobConf(conf); TaskAttemptContext taskContext = new HackTaskAttemptContext(jobConf, new TaskAttemptID()); JobContext jobContext = new HackJobContext(jobConf, taskContext.getJobID()); outputFormat.checkOutputSpecs(jobContext); fail(); } @Test public void testRecoveredFromFailuresAfterRetries() throws Exception { FaultyThriftHiveMetastore metastore = new FaultyThriftHiveMetastore( BackoffRetryTask.NUM_TRIES.getDefaultValue() - 1); Configuration conf = new Configuration(); conf.setLong(BackoffRetryTask.INITIAL_RETRY_DELAY_MSEC.getKey(), 100); HiveOutputDescription outputDesc = new HiveOutputDescription(); outputDesc.getTableDesc().setTableName("foo"); OutputConf outputConf = new OutputConf(conf, PROFILE_ID); outputConf.writeOutputDescription(outputDesc); HiveApiOutputFormat outputFormat = new HiveApiOutputFormat(); outputFormat.setMyProfileId(PROFILE_ID); JobConf jobConf = new JobConf(conf); TaskAttemptContext taskContext = new HackTaskAttemptContext(jobConf, new TaskAttemptID()); JobContext jobContext = new HackJobContext(jobConf, taskContext.getJobID()); HiveMetastores.setTestClient(metastore); outputFormat.checkOutputSpecs(jobContext); assertEquals(BackoffRetryTask.NUM_TRIES.getDefaultValue(), metastore.getNumCalls()); } }