org.apache.flink.hdfstests.FsNegativeRunningJobsRegistryTest.java Source code

Introduction

Here is the source code for org.apache.flink.hdfstests.FsNegativeRunningJobsRegistryTest.java

Source

/*
 * 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.flink.hdfstests;

import org.apache.flink.api.common.JobID;
import org.apache.flink.core.fs.Path;
import org.apache.flink.runtime.highavailability.FsNegativeRunningJobsRegistry;

import org.apache.flink.runtime.highavailability.RunningJobsRegistry.JobSchedulingStatus;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hdfs.MiniDFSCluster;

import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.junit.ClassRule;
import org.junit.Test;
import org.junit.rules.TemporaryFolder;

import java.io.File;

import static org.junit.Assert.assertEquals;

/**
 * Tests for the {@link FsNegativeRunningJobsRegistry} on HDFS.
 */
public class FsNegativeRunningJobsRegistryTest {

    @ClassRule
    public static final TemporaryFolder TEMP_DIR = new TemporaryFolder();

    private static MiniDFSCluster HDFS_CLUSTER;

    private static Path HDFS_ROOT_PATH;

    // ------------------------------------------------------------------------
    //  startup / shutdown
    // ------------------------------------------------------------------------

    @BeforeClass
    public static void createHDFS() throws Exception {
        final File tempDir = TEMP_DIR.newFolder();

        Configuration hdConf = new Configuration();
        hdConf.set(MiniDFSCluster.HDFS_MINIDFS_BASEDIR, tempDir.getAbsolutePath());

        MiniDFSCluster.Builder builder = new MiniDFSCluster.Builder(hdConf);
        HDFS_CLUSTER = builder.build();

        HDFS_ROOT_PATH = new Path(
                "hdfs://" + HDFS_CLUSTER.getURI().getHost() + ":" + HDFS_CLUSTER.getNameNodePort() + "/");
    }

    @AfterClass
    public static void destroyHDFS() {
        if (HDFS_CLUSTER != null) {
            HDFS_CLUSTER.shutdown();
        }
        HDFS_CLUSTER = null;
        HDFS_ROOT_PATH = null;
    }

    // ------------------------------------------------------------------------
    //  Tests
    // ------------------------------------------------------------------------

    @Test
    public void testCreateAndSetFinished() throws Exception {
        final Path workDir = new Path(HDFS_ROOT_PATH, "test-work-dir");
        final JobID jid = new JobID();

        FsNegativeRunningJobsRegistry registry = new FsNegativeRunningJobsRegistry(workDir);

        // another registry should pick this up
        FsNegativeRunningJobsRegistry otherRegistry = new FsNegativeRunningJobsRegistry(workDir);

        // initially, without any call, the job is pending
        assertEquals(JobSchedulingStatus.PENDING, registry.getJobSchedulingStatus(jid));
        assertEquals(JobSchedulingStatus.PENDING, otherRegistry.getJobSchedulingStatus(jid));

        // after set running, the job is running
        registry.setJobRunning(jid);
        assertEquals(JobSchedulingStatus.RUNNING, registry.getJobSchedulingStatus(jid));
        assertEquals(JobSchedulingStatus.RUNNING, otherRegistry.getJobSchedulingStatus(jid));

        // set the job to finished and validate
        registry.setJobFinished(jid);
        assertEquals(JobSchedulingStatus.DONE, registry.getJobSchedulingStatus(jid));
        assertEquals(JobSchedulingStatus.DONE, otherRegistry.getJobSchedulingStatus(jid));
    }

    @Test
    public void testSetFinishedAndRunning() throws Exception {
        final Path workDir = new Path(HDFS_ROOT_PATH, "nother_wrk_directr");
        final JobID jid = new JobID();

        FsNegativeRunningJobsRegistry registry = new FsNegativeRunningJobsRegistry(workDir);

        // set the job to finished and validate
        registry.setJobFinished(jid);
        assertEquals(JobSchedulingStatus.DONE, registry.getJobSchedulingStatus(jid));

        // set the job to running does not overwrite the finished status
        registry.setJobRunning(jid);
        assertEquals(JobSchedulingStatus.DONE, registry.getJobSchedulingStatus(jid));

        // another registry should pick this up
        FsNegativeRunningJobsRegistry otherRegistry = new FsNegativeRunningJobsRegistry(workDir);
        assertEquals(JobSchedulingStatus.DONE, otherRegistry.getJobSchedulingStatus(jid));

        // clear the running and finished marker, it will be pending
        otherRegistry.clearJob(jid);
        assertEquals(JobSchedulingStatus.PENDING, registry.getJobSchedulingStatus(jid));
        assertEquals(JobSchedulingStatus.PENDING, otherRegistry.getJobSchedulingStatus(jid));
    }
}