Examples with Workload org.neo4j.kernel.stresstests.transaction.checkpoint.workload.Workload used on opensource projects

Example 1 with Workload

use of org.neo4j.kernel.stresstests.transaction.checkpoint.workload.Workload in project neo4j by neo4j.

the class CheckPointingLogRotationStressTesting method shouldBehaveCorrectlyUnderStress.

@Test
public void shouldBehaveCorrectlyUnderStress() throws Throwable {
    long durationInMinutes = parseLong(fromEnv("CHECK_POINT_LOG_ROTATION_STRESS_DURATION", DEFAULT_DURATION_IN_MINUTES));
    File storeDir = new File(fromEnv("CHECK_POINT_LOG_ROTATION_STORE_DIRECTORY", DEFAULT_STORE_DIR));
    long nodeCount = parseLong(fromEnv("CHECK_POINT_LOG_ROTATION_NODE_COUNT", DEFAULT_NODE_COUNT));
    int threads = parseInt(fromEnv("CHECK_POINT_LOG_ROTATION_WORKER_THREADS", DEFAULT_WORKER_THREADS));
    String pageCacheMemory = fromEnv("CHECK_POINT_LOG_ROTATION_PAGE_CACHE_MEMORY", DEFAULT_PAGE_CACHE_MEMORY);
    System.out.println("1/6\tBuilding initial store...");
    try (FileSystemAbstraction fileSystem = new DefaultFileSystemAbstraction()) {
        new ParallelBatchImporter(ensureExistsAndEmpty(storeDir), fileSystem, DEFAULT, NullLogService.getInstance(), ExecutionMonitors.defaultVisible(), Config.defaults()).doImport(new NodeCountInputs(nodeCount));
    }
    System.out.println("2/6\tStarting database...");
    GraphDatabaseBuilder builder = new TestGraphDatabaseFactory().newEmbeddedDatabaseBuilder(storeDir);
    GraphDatabaseService db = builder.setConfig(GraphDatabaseSettings.pagecache_memory, pageCacheMemory).setConfig(GraphDatabaseSettings.keep_logical_logs, Settings.FALSE).setConfig(GraphDatabaseSettings.check_point_interval_time, CHECK_POINT_INTERVAL_MINUTES + "m").setConfig(GraphDatabaseFacadeFactory.Configuration.tracer, "timer").newGraphDatabase();
    System.out.println("3/6\tWarm up db...");
    try (Workload workload = new Workload(db, defaultRandomMutation(nodeCount, db), threads)) {
        // make sure to run at least one checkpoint during warmup
        long warmUpTimeMillis = TimeUnit.SECONDS.toMillis(CHECK_POINT_INTERVAL_MINUTES * 2);
        workload.run(warmUpTimeMillis, Workload.TransactionThroughput.NONE);
    }
    System.out.println("4/6\tStarting workload...");
    TransactionThroughputChecker throughput = new TransactionThroughputChecker();
    try (Workload workload = new Workload(db, defaultRandomMutation(nodeCount, db), threads)) {
        workload.run(TimeUnit.MINUTES.toMillis(durationInMinutes), throughput);
    }
    System.out.println("5/6\tShutting down...");
    db.shutdown();
    try {
        System.out.println("6/6\tPrinting stats and recorded timings...");
        TimerTransactionTracer.printStats(System.out);
        throughput.assertThroughput(System.out);
    } finally {
        System.out.println("Done.");
    }
    // let's cleanup disk space when everything went well
    FileUtils.deleteRecursively(storeDir);
}