Examples with NullConnector org.apache.hadoop.hdfs.server.diskbalancer.connectors.NullConnector used on opensource projects

Example 11 with NullConnector

use of org.apache.hadoop.hdfs.server.diskbalancer.connectors.NullConnector in project hadoop by apache.

the class TestPlanner method testGreedyPlannerNoVolumeTest.

@Test
public void testGreedyPlannerNoVolumeTest() throws Exception {
    NullConnector nullConnector = new NullConnector();
    DiskBalancerCluster cluster = new DiskBalancerCluster(nullConnector);
    List<NodePlan> planList = cluster.computePlan(10.0f);
    assertNotNull(planList);
}

Example 12 with NullConnector

use of org.apache.hadoop.hdfs.server.diskbalancer.connectors.NullConnector in project hadoop by apache.

the class TestPlanner method testGreedyPlannerMoveFromSingleDisk.

@Test
public void testGreedyPlannerMoveFromSingleDisk() throws Exception {
    NullConnector nullConnector = new NullConnector();
    DiskBalancerCluster cluster = new DiskBalancerCluster(nullConnector);
    DiskBalancerDataNode node = new DiskBalancerDataNode(UUID.randomUUID().toString());
    // All disks have same capacity of data
    DiskBalancerVolume volume1 = createVolume("volume100", 200, 100);
    DiskBalancerVolume volume2 = createVolume("volume0-1", 200, 0);
    DiskBalancerVolume volume3 = createVolume("volume0-2", 200, 0);
    node.addVolume(volume1);
    node.addVolume(volume2);
    node.addVolume(volume3);
    nullConnector.addNode(node);
    cluster.readClusterInfo();
    Assert.assertEquals(1, cluster.getNodes().size());
    GreedyPlanner planner = new GreedyPlanner(10.0f, node);
    NodePlan plan = new NodePlan(node.getDataNodeName(), node.getDataNodePort());
    planner.balanceVolumeSet(node, node.getVolumeSets().get("SSD"), plan);
    // We should see 2 move plans. One from volume100 to volume0-1
    // and another from volume100 to volume0-2
    assertEquals(2, plan.getVolumeSetPlans().size());
    Step step = plan.getVolumeSetPlans().get(0);
    assertEquals("volume100", step.getSourceVolume().getPath());
    assertTrue(step.getSizeString(step.getBytesToMove()).matches("33.[2|3|4] G"));
    step = plan.getVolumeSetPlans().get(1);
    assertEquals("volume100", step.getSourceVolume().getPath());
    assertTrue(step.getSizeString(step.getBytesToMove()).matches("33.[2|3|4] G"));
}