Package org.apache.helix.controller.stages

Examples of org.apache.helix.controller.stages.MessageSelectionStageOutput

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                    "session_1",
                    "SLAVE");

    runPipeline(event, dataRefresh);
    runPipeline(event, rebalancePipeline);
    MessageSelectionStageOutput msgSelOutput =
        event.getAttribute(AttributeName.MESSAGES_SELECTED.toString());
    List<Message> messages =
        msgSelOutput.getMessages(resourceName, new Partition(resourceName + "_0"));
    Assert.assertEquals(messages.size(),
                        1,
                        "Should output 1 message: OFFLINE-SLAVE for node0");
    Message message = messages.get(0);
    Assert.assertEquals(message.getFromState(), "OFFLINE");
    Assert.assertEquals(message.getToState(), "SLAVE");
    Assert.assertEquals(message.getTgtName(), "localhost_0");

    // round2: updates node0 currentState to SLAVE but keep the
    // message, make sure controller should not send S->M until removal is done
    setCurrentState(clusterName,
                    "localhost_0",
                    resourceName,
                    resourceName + "_0",
                    "session_1",
                    "SLAVE");

    runPipeline(event, dataRefresh);
    runPipeline(event, rebalancePipeline);
    msgSelOutput = event.getAttribute(AttributeName.MESSAGES_SELECTED.toString());
    messages = msgSelOutput.getMessages(resourceName, new Partition(resourceName + "_0"));
    Assert.assertEquals(messages.size(),
                        0,
                        "Should NOT output 1 message: SLAVE-MASTER for node1");

    System.out.println("END " + clusterName + " at "
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    }
    catch (Exception e)
    {
      // OK
    }
    MessageSelectionStageOutput msgSelectOutput = new MessageSelectionStageOutput();
    List<Message> selectMessages = new ArrayList<Message>();
    Message msg =
        createMessage(MessageType.STATE_TRANSITION,
                      "msgId-001",
                      "OFFLINE",
                      "SLAVE",
                      "TestDB",
                      "localhost_0");
    selectMessages.add(msg);

    msgSelectOutput.addMessages("TestDB", new Partition("TestDB_0"), selectMessages);
    event.addAttribute(AttributeName.MESSAGES_SELECTED.toString(), msgSelectOutput);

    runStage(event, throttleStage);

    MessageThrottleStageOutput msgThrottleOutput =
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    Pipeline dataRefresh = new Pipeline();
    dataRefresh.addStage(new ReadClusterDataStage());
    runPipeline(event, dataRefresh);
    runStage(event, new ResourceComputationStage());
    MessageSelectionStageOutput msgSelectOutput = new MessageSelectionStageOutput();

    Message msg3 =
        createMessage(MessageType.STATE_TRANSITION,
                      "msgId-003",
                      "OFFLINE",
                      "SLAVE",
                      "TestDB",
                      "localhost_0");

    Message msg4 =
        createMessage(MessageType.STATE_TRANSITION,
                      "msgId-004",
                      "OFFLINE",
                      "SLAVE",
                      "TestDB",
                      "localhost_0");

    Message msg5 =
        createMessage(MessageType.STATE_TRANSITION,
                      "msgId-005",
                      "OFFLINE",
                      "SLAVE",
                      "TestDB",
                      "localhost_0");

    Message msg6 =
        createMessage(MessageType.STATE_TRANSITION,
                      "msgId-006",
                      "OFFLINE",
                      "SLAVE",
                      "TestDB",
                      "localhost_1");

    List<Message> selectMessages = new ArrayList<Message>();
    selectMessages.add(msg1);
    selectMessages.add(msg2);
    selectMessages.add(msg3);
    selectMessages.add(msg4);
    selectMessages.add(msg5); // should be throttled
    selectMessages.add(msg6); // should be throttled

    msgSelectOutput.addMessages("TestDB", new Partition("TestDB_0"), selectMessages);
    event.addAttribute(AttributeName.MESSAGES_SELECTED.toString(), msgSelectOutput);

    runStage(event, throttleStage);

    MessageThrottleStageOutput msgThrottleOutput =
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                    "session_1",
                    "SLAVE");

    runPipeline(event, dataRefresh);
    runPipeline(event, rebalancePipeline);
    MessageSelectionStageOutput msgSelOutput =
        event.getAttribute(AttributeName.MESSAGES_SELECTED.toString());
    List<Message> messages =
        msgSelOutput.getMessages(resourceName, new Partition(resourceName + "_0"));
    Assert.assertEquals(messages.size(),
                        1,
                        "Should output 1 message: OFFLINE-SLAVE for node0");
    Message message = messages.get(0);
    Assert.assertEquals(message.getFromState(), "OFFLINE");
    Assert.assertEquals(message.getToState(), "SLAVE");
    Assert.assertEquals(message.getTgtName(), "localhost_0");

    // round2: drop resource, but keep the
    // message, make sure controller should not send O->DROPPEDN until O->S is done
    HelixAdmin admin = new ZKHelixAdmin(_gZkClient);
    admin.dropResource(clusterName, resourceName);

    runPipeline(event, dataRefresh);
    runPipeline(event, rebalancePipeline);
    msgSelOutput = event.getAttribute(AttributeName.MESSAGES_SELECTED.toString());
    messages = msgSelOutput.getMessages(resourceName, new Partition(resourceName + "_0"));
    Assert.assertEquals(messages.size(),
                        1,
                        "Should output only 1 message: OFFLINE->DROPPED for localhost_1");

    message = messages.get(0);
    Assert.assertEquals(message.getFromState(), "SLAVE");
    Assert.assertEquals(message.getToState(), "OFFLINE");
    Assert.assertEquals(message.getTgtName(), "localhost_1");

    // round3: remove O->S for localhost_0, controller should now send O->DROPPED to
    // localhost_0
    Builder keyBuilder = accessor.keyBuilder();
    List<String> msgIds = accessor.getChildNames(keyBuilder.messages("localhost_0"));
    accessor.removeProperty(keyBuilder.message("localhost_0", msgIds.get(0)));
    runPipeline(event, dataRefresh);
    runPipeline(event, rebalancePipeline);
    msgSelOutput = event.getAttribute(AttributeName.MESSAGES_SELECTED.toString());
    messages = msgSelOutput.getMessages(resourceName, new Partition(resourceName + "_0"));
    Assert.assertEquals(messages.size(),
                        1,
                        "Should output 1 message: OFFLINE->DROPPED for localhost_0");
    message = messages.get(0);
    Assert.assertEquals(message.getFromState(), "OFFLINE");
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                    "session_1",
                    "SLAVE");

    runPipeline(event, dataRefresh);
    runPipeline(event, rebalancePipeline);
    MessageSelectionStageOutput msgSelOutput =
        event.getAttribute(AttributeName.MESSAGES_SELECTED.toString());
    List<Message> messages =
        msgSelOutput.getMessages(resourceName, new Partition(resourceName + "_0"));
    Assert.assertEquals(messages.size(),
                        1,
                        "Should output 1 message: SLAVE-MASTER for node1");
    Message message = messages.get(0);
    Assert.assertEquals(message.getFromState(), "SLAVE");
    Assert.assertEquals(message.getToState(), "MASTER");
    Assert.assertEquals(message.getTgtName(), "localhost_1");

    // round2: updates node0 currentState to SLAVE but keep the
    // message, make sure controller should not send S->M until removal is done
    setupLiveInstances(clusterName, new int[] { 0 });
    setCurrentState(clusterName,
                    "localhost_0",
                    resourceName,
                    resourceName + "_0",
                    "session_0",
                    "SLAVE");

    runPipeline(event, dataRefresh);
    runPipeline(event, rebalancePipeline);
    msgSelOutput = event.getAttribute(AttributeName.MESSAGES_SELECTED.toString());
    messages = msgSelOutput.getMessages(resourceName, new Partition(resourceName + "_0"));
    Assert.assertEquals(messages.size(),
                        0,
                        "Should NOT output 1 message: SLAVE-MASTER for node0");

    System.out.println("END " + clusterName + " at "
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    setCurrentState(clusterName, "localhost_1", resourceName, resourceName + "_0", "session_1",
        "SLAVE");

    runPipeline(event, dataRefresh);
    runPipeline(event, rebalancePipeline);
    MessageSelectionStageOutput msgSelOutput =
        event.getAttribute(AttributeName.MESSAGES_SELECTED.toString());
    List<Message> messages =
        msgSelOutput.getMessages(resourceName, new Partition(resourceName + "_0"));
    Assert.assertEquals(messages.size(), 1, "Should output 1 message: OFFLINE-SLAVE for node0");
    Message message = messages.get(0);
    Assert.assertEquals(message.getFromState(), "OFFLINE");
    Assert.assertEquals(message.getToState(), "SLAVE");
    Assert.assertEquals(message.getTgtName(), "localhost_0");

    // round2: updates node0 currentState to SLAVE but keep the
    // message, make sure controller should not send S->M until removal is done
    setCurrentState(clusterName, "localhost_0", resourceName, resourceName + "_0", "session_1",
        "SLAVE");

    runPipeline(event, dataRefresh);
    runPipeline(event, rebalancePipeline);
    msgSelOutput = event.getAttribute(AttributeName.MESSAGES_SELECTED.toString());
    messages = msgSelOutput.getMessages(resourceName, new Partition(resourceName + "_0"));
    Assert.assertEquals(messages.size(), 0, "Should NOT output 1 message: SLAVE-MASTER for node1");

    System.out.println("END " + clusterName + " at " + new Date(System.currentTimeMillis()));

  }
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    setCurrentState(clusterName, "localhost_1", resourceName, resourceName + "_0", "session_1",
        "SLAVE");

    runPipeline(event, dataRefresh);
    runPipeline(event, rebalancePipeline);
    MessageSelectionStageOutput msgSelOutput =
        event.getAttribute(AttributeName.MESSAGES_SELECTED.toString());
    List<Message> messages =
        msgSelOutput.getMessages(resourceName, new Partition(resourceName + "_0"));
    Assert.assertEquals(messages.size(), 1, "Should output 1 message: OFFLINE-SLAVE for node0");
    Message message = messages.get(0);
    Assert.assertEquals(message.getFromState(), "OFFLINE");
    Assert.assertEquals(message.getToState(), "SLAVE");
    Assert.assertEquals(message.getTgtName(), "localhost_0");

    // round2: drop resource, but keep the
    // message, make sure controller should not send O->DROPPEDN until O->S is done
    HelixAdmin admin = new ZKHelixAdmin(_gZkClient);
    admin.dropResource(clusterName, resourceName);

    runPipeline(event, dataRefresh);
    runPipeline(event, rebalancePipeline);
    msgSelOutput = event.getAttribute(AttributeName.MESSAGES_SELECTED.toString());
    messages = msgSelOutput.getMessages(resourceName, new Partition(resourceName + "_0"));
    Assert.assertEquals(messages.size(), 1,
        "Should output only 1 message: OFFLINE->DROPPED for localhost_1");

    message = messages.get(0);
    Assert.assertEquals(message.getFromState(), "SLAVE");
    Assert.assertEquals(message.getToState(), "OFFLINE");
    Assert.assertEquals(message.getTgtName(), "localhost_1");

    // round3: remove O->S for localhost_0, controller should now send O->DROPPED to
    // localhost_0
    Builder keyBuilder = accessor.keyBuilder();
    List<String> msgIds = accessor.getChildNames(keyBuilder.messages("localhost_0"));
    accessor.removeProperty(keyBuilder.message("localhost_0", msgIds.get(0)));
    runPipeline(event, dataRefresh);
    runPipeline(event, rebalancePipeline);
    msgSelOutput = event.getAttribute(AttributeName.MESSAGES_SELECTED.toString());
    messages = msgSelOutput.getMessages(resourceName, new Partition(resourceName + "_0"));
    Assert.assertEquals(messages.size(), 1,
        "Should output 1 message: OFFLINE->DROPPED for localhost_0");
    message = messages.get(0);
    Assert.assertEquals(message.getFromState(), "OFFLINE");
    Assert.assertEquals(message.getToState(), "DROPPED");
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    setCurrentState(clusterName, "localhost_1", resourceName, resourceName + "_0", "session_1",
        "SLAVE");

    runPipeline(event, dataRefresh);
    runPipeline(event, rebalancePipeline);
    MessageSelectionStageOutput msgSelOutput =
        event.getAttribute(AttributeName.MESSAGES_SELECTED.toString());
    List<Message> messages =
        msgSelOutput.getMessages(resourceName, new Partition(resourceName + "_0"));
    Assert.assertEquals(messages.size(), 1, "Should output 1 message: SLAVE-MASTER for node1");
    Message message = messages.get(0);
    Assert.assertEquals(message.getFromState(), "SLAVE");
    Assert.assertEquals(message.getToState(), "MASTER");
    Assert.assertEquals(message.getTgtName(), "localhost_1");

    // round2: updates node0 currentState to SLAVE but keep the
    // message, make sure controller should not send S->M until removal is done
    setupLiveInstances(clusterName, new int[] {
      0
    });
    setCurrentState(clusterName, "localhost_0", resourceName, resourceName + "_0", "session_0",
        "SLAVE");

    runPipeline(event, dataRefresh);
    runPipeline(event, rebalancePipeline);
    msgSelOutput = event.getAttribute(AttributeName.MESSAGES_SELECTED.toString());
    messages = msgSelOutput.getMessages(resourceName, new Partition(resourceName + "_0"));
    Assert.assertEquals(messages.size(), 0, "Should NOT output 1 message: SLAVE-MASTER for node0");

    System.out.println("END " + clusterName + " at " + new Date(System.currentTimeMillis()));

  }
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      runStage(event, throttleStage);
      Assert.fail("Should throw exception since MESSAGE_SELECT is null");
    } catch (Exception e) {
      // OK
    }
    MessageSelectionStageOutput msgSelectOutput = new MessageSelectionStageOutput();
    List<Message> selectMessages = new ArrayList<Message>();
    Message msg =
        createMessage(MessageType.STATE_TRANSITION, "msgId-001", "OFFLINE", "SLAVE", "TestDB",
            "localhost_0");
    selectMessages.add(msg);

    msgSelectOutput.addMessages("TestDB", new Partition("TestDB_0"), selectMessages);
    event.addAttribute(AttributeName.MESSAGES_SELECTED.toString(), msgSelectOutput);

    runStage(event, throttleStage);

    MessageThrottleStageOutput msgThrottleOutput =
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    Pipeline dataRefresh = new Pipeline();
    dataRefresh.addStage(new ReadClusterDataStage());
    runPipeline(event, dataRefresh);
    runStage(event, new ResourceComputationStage());
    MessageSelectionStageOutput msgSelectOutput = new MessageSelectionStageOutput();

    Message msg3 =
        createMessage(MessageType.STATE_TRANSITION, "msgId-003", "OFFLINE", "SLAVE", "TestDB",
            "localhost_0");

    Message msg4 =
        createMessage(MessageType.STATE_TRANSITION, "msgId-004", "OFFLINE", "SLAVE", "TestDB",
            "localhost_0");

    Message msg5 =
        createMessage(MessageType.STATE_TRANSITION, "msgId-005", "OFFLINE", "SLAVE", "TestDB",
            "localhost_0");

    Message msg6 =
        createMessage(MessageType.STATE_TRANSITION, "msgId-006", "OFFLINE", "SLAVE", "TestDB",
            "localhost_1");

    List<Message> selectMessages = new ArrayList<Message>();
    selectMessages.add(msg1);
    selectMessages.add(msg2);
    selectMessages.add(msg3);
    selectMessages.add(msg4);
    selectMessages.add(msg5); // should be throttled
    selectMessages.add(msg6); // should be throttled

    msgSelectOutput.addMessages("TestDB", new Partition("TestDB_0"), selectMessages);
    event.addAttribute(AttributeName.MESSAGES_SELECTED.toString(), msgSelectOutput);

    runStage(event, throttleStage);

    MessageThrottleStageOutput msgThrottleOutput =
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Related Classes of org.apache.helix.controller.stages.MessageSelectionStageOutput

  • org.apache.helix.controller.stages.TestMessageThrottleStage
  • org.apache.helix.controller.stages.TestRebalancePipeline
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