Examples with DiskBalancerCluster org.apache.hadoop.hdfs.server.diskbalancer.datamodel.DiskBalancerCluster used on opensource projects

Example 6 with DiskBalancerCluster

use of org.apache.hadoop.hdfs.server.diskbalancer.datamodel.DiskBalancerCluster in project hadoop by apache.

the class TestPlanner method testGreedyPlannerComputePlan.

@Test
public void testGreedyPlannerComputePlan() throws Exception {
    URI clusterJson = getClass().getResource("/diskBalancer/data-cluster-3node-3disk.json").toURI();
    ClusterConnector jsonConnector = ConnectorFactory.getCluster(clusterJson, null);
    DiskBalancerCluster cluster = new DiskBalancerCluster(jsonConnector);
    cluster.readClusterInfo();
    Assert.assertEquals(3, cluster.getNodes().size());
    cluster.setNodesToProcess(cluster.getNodes());
    List<NodePlan> plan = cluster.computePlan(10.0f);
    Assert.assertNotNull(plan);
}

Example 7 with DiskBalancerCluster

use of org.apache.hadoop.hdfs.server.diskbalancer.datamodel.DiskBalancerCluster in project hadoop by apache.

the class TestPlanner method testNodePlanSerialize.

@Test
public void testNodePlanSerialize() throws Exception {
    final int diskCount = 12;
    DiskBalancerTestUtil util = new DiskBalancerTestUtil();
    DiskBalancerVolumeSet vSet = util.createRandomVolumeSet(StorageType.SSD, diskCount);
    NullConnector nullConnector = new NullConnector();
    DiskBalancerCluster cluster = new DiskBalancerCluster(nullConnector);
    DiskBalancerDataNode node = new DiskBalancerDataNode(UUID.randomUUID().toString());
    int diskNum = 0;
    for (DiskBalancerVolume vol : vSet.getVolumes()) {
        vol.setPath("volume" + diskNum++);
        node.addVolume(vol);
    }
    nullConnector.addNode(node);
    cluster.readClusterInfo();
    GreedyPlanner newPlanner = new GreedyPlanner(01.0f, node);
    NodePlan newPlan = new NodePlan(node.getDataNodeName(), node.getDataNodePort());
    newPlanner.balanceVolumeSet(node, node.getVolumeSets().get("SSD"), newPlan);
    String planString = newPlan.toJson();
    assertNotNull(planString);
    NodePlan copy = NodePlan.parseJson(planString);
    assertNotNull(copy);
    assertEquals(newPlan.getVolumeSetPlans().size(), copy.getVolumeSetPlans().size());
}

Example 8 with DiskBalancerCluster

use of org.apache.hadoop.hdfs.server.diskbalancer.datamodel.DiskBalancerCluster in project hadoop by apache.

the class TestPlanner method testGreedyPlannerOneVolumeNoPlanTest.

@Test
public void testGreedyPlannerOneVolumeNoPlanTest() throws Exception {
    NullConnector nullConnector = new NullConnector();
    DiskBalancerCluster cluster = new DiskBalancerCluster(nullConnector);
    DiskBalancerDataNode node = new DiskBalancerDataNode(UUID.randomUUID().toString());
    DiskBalancerVolume volume30 = createVolume("volume30", 100, 30);
    node.addVolume(volume30);
    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);
    // With a single volume we should not have any plans for moves.
    assertEquals(0, plan.getVolumeSetPlans().size());
}

Example 9 with DiskBalancerCluster

use of org.apache.hadoop.hdfs.server.diskbalancer.datamodel.DiskBalancerCluster in project hadoop by apache.

the class TestPlanner method testGreedyPlannerTwoVolume.

@Test
public void testGreedyPlannerTwoVolume() throws Exception {
    NullConnector nullConnector = new NullConnector();
    DiskBalancerCluster cluster = new DiskBalancerCluster(nullConnector);
    DiskBalancerDataNode node = new DiskBalancerDataNode(UUID.randomUUID().toString());
    DiskBalancerVolume volume30 = createVolume("volume30", 100, 30);
    DiskBalancerVolume volume10 = createVolume("volume10", 100, 10);
    node.addVolume(volume10);
    node.addVolume(volume30);
    nullConnector.addNode(node);
    cluster.readClusterInfo();
    Assert.assertEquals(1, cluster.getNodes().size());
    GreedyPlanner planner = new GreedyPlanner(5.0f, node);
    NodePlan plan = new NodePlan(node.getDataNodeUUID(), node.getDataNodePort());
    planner.balanceVolumeSet(node, node.getVolumeSets().get("SSD"), plan);
    // We should have only one planned move from
    // volume30 to volume10 of 10 GB Size.
    assertEquals(1, plan.getVolumeSetPlans().size());
    Step step = plan.getVolumeSetPlans().get(0);
    assertEquals("volume30", step.getSourceVolume().getPath());
    assertEquals("volume10", step.getDestinationVolume().getPath());
    assertEquals("10 G", step.getSizeString(step.getBytesToMove()));
}

Example 10 with DiskBalancerCluster

use of org.apache.hadoop.hdfs.server.diskbalancer.datamodel.DiskBalancerCluster in project hadoop by apache.

the class TestDiskBalancerCommand method testReadClusterFromJson.

@Test(timeout = 60000)
public void testReadClusterFromJson() throws Exception {
    ClusterConnector jsonConnector = ConnectorFactory.getCluster(clusterJson, conf);
    DiskBalancerCluster diskBalancerCluster = new DiskBalancerCluster(jsonConnector);
    diskBalancerCluster.readClusterInfo();
    assertEquals(64, diskBalancerCluster.getNodes().size());
}