Examples of DegraderControl

Examples of com.linkedin.util.degrader.DegraderControl

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                                   Map<URI,Integer> pointsMap, int pointsPerWeight)
  {
    for (TrackerClientUpdater clientUpdater : trackerClientUpdaters)
    {
      TrackerClient client = clientUpdater.getTrackerClient();
      DegraderControl degraderControl = client.getDegraderControl(partitionId);
      int currentOverrideMinCallCount = client.getDegraderControl(partitionId).getOverrideMinCallCount();
      double hashFactor = pointsMap.get(client.getUri()) / pointsPerWeight;
      double transmitFactor = 1.0 - newOverrideDropRate;
      int newOverrideMinCallCount = (int) Math.max(Math.round(degraderControl.getMinCallCount() *
                                                       hashFactor * transmitFactor), 1);

      if (newOverrideMinCallCount != currentOverrideMinCallCount)
      {
        clientUpdater.setOverrideMinCallCount(newOverrideMinCallCount);
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Examples of com.linkedin.util.degrader.DegraderControl

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  private static Map<TrackerClient, TrackerClientMetrics> getTrackerClientMetrics(List<TrackerClient> clients)
  {
    Map<TrackerClient, TrackerClientMetrics> map = new HashMap<TrackerClient, TrackerClientMetrics>();
    for (TrackerClient client : clients)
    {
      DegraderControl degraderControl = client.getDegraderControl(DEFAULT_PARTITION_ID);
      map.put(client, new TrackerClientMetrics(degraderControl.getOverrideDropRate(),
                                                             degraderControl.getMaxDropRate(),
                                                             degraderControl.getOverrideMinCallCount()));
    }
    return map;
  }
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Examples of com.linkedin.util.degrader.DegraderControl

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    // reset metrics on tracker client's degrader control
    for(TrackerClient client : clients)
    {
      TrackerClientMetrics originalMetrics = beforeStateUpdate.get(client);
      DegraderControl degraderControl = client.getDegraderControl(DEFAULT_PARTITION_ID);
      degraderControl.setOverrideDropRate(originalMetrics._overrideDropRate);
      degraderControl.setMaxDropRate(originalMetrics._maxDropRate);
      degraderControl.setOverrideMinCallCount(originalMetrics._overrideMinCallCount);
    }

    callCompletions.clear();
    for (TrackerClient client : clients)
    {
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Examples of com.linkedin.util.degrader.DegraderControl

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    clients.add(client1);
    clients.add(client2);

    // force client2 to be disabled
    DegraderControl dcClient2Default = client2.getDegraderControl(DEFAULT_PARTITION_ID);
    dcClient2Default.setMinCallCount(1);
    dcClient2Default.setOverrideMinCallCount(1);
    dcClient2Default.setMaxDropRate(1d);
    dcClient2Default.setUpStep(1d);
    dcClient2Default.setHighErrorRate(0);
    CallCompletion cc = client2.getCallTracker().startCall();
    clock2.addMs(10000);
    cc.endCallWithError();

    clock1.addMs(15000);
    clock2.addMs(5000);

    System.err.println(dcClient2Default.getCurrentComputedDropRate());
    System.err.println(dcClient2Default.getCurrentComputedDropRate());

    // now verify that we only get client1
    for (int i = 0; i < 1000; ++i)
    {
      assertEquals(getTrackerClient(strategy, null, new RequestContext(), 0, clients), client1);
    }

    // now force client1 to be disabled
    DegraderControl dcClient1Default = client1.getDegraderControl(DEFAULT_PARTITION_ID);
    dcClient1Default.setMinCallCount(1);
    dcClient1Default.setOverrideMinCallCount(1);
    dcClient1Default.setMaxDropRate(1d);
    dcClient1Default.setUpStep(1d);
    dcClient1Default.setHighErrorRate(0);
    cc = client1.getCallTracker().startCall();
    clock1.addMs(10000);
    cc.endCallWithError();

    clock1.addMs(5000);
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Examples of com.linkedin.util.degrader.DegraderControl

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    clients.add(client1);
    clients.add(client2);

    // force client2 to be disabled
    DegraderControl dcClient2Default = client2.getDegraderControl(DEFAULT_PARTITION_ID);
    dcClient2Default.setOverrideMinCallCount(1);
    dcClient2Default.setMinCallCount(1);
    dcClient2Default.setMaxDropRate(1d);
    dcClient2Default.setUpStep(0.4d);
    dcClient2Default.setHighErrorRate(0);
    CallCompletion cc = client2.getCallTracker().startCall();
    clock2.addMs(1);
    cc.endCallWithError();

    clock1.addMs(15000);
    clock2.addMs(5000);

    System.err.println(dcClient2Default.getCurrentComputedDropRate());
    System.err.println(client1.getDegraderControl(DEFAULT_PARTITION_ID).getCurrentComputedDropRate());

    // trigger a state update
    assertNotNull(getTrackerClient(strategy, null, new RequestContext(), 1, clients));
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Examples of com.linkedin.util.degrader.DegraderControl

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    final int partitionId1 = 1;
    clientsForPartition1.add(client2);
    clientsForPartition1.add(client3);

    // force client2 to be disabled
    DegraderControl dcClient2Partition0 = client2.getDegraderControl(0);
    DegraderControl dcClient2Partition1 = client2.getDegraderControl(1);
    dcClient2Partition0.setOverrideMinCallCount(1);
    dcClient2Partition0.setMinCallCount(1);
    dcClient2Partition0.setMaxDropRate(1d);
    dcClient2Partition0.setUpStep(0.4d);
    dcClient2Partition0.setHighErrorRate(0);

    dcClient2Partition1.setOverrideMinCallCount(1);
    dcClient2Partition1.setMinCallCount(1);
    dcClient2Partition1.setMaxDropRate(1d);
    dcClient2Partition1.setUpStep(0.4d);
    dcClient2Partition1.setHighErrorRate(0);
    CallCompletion cc = client2.getCallTracker().startCall();
    clock2.addMs(1);
    cc.endCallWithError();

    // force client3 to be disabled
    DegraderControl dcClient3Partition1 = client3.getDegraderControl(1);
    dcClient3Partition1.setOverrideMinCallCount(1);
    dcClient3Partition1.setMinCallCount(1);
    dcClient3Partition1.setMaxDropRate(1d);
    dcClient3Partition1.setHighErrorRate(0);
    dcClient3Partition1.setUpStep(0.2d);
    CallCompletion cc3 = client3.getCallTracker().startCall();
    clock3.addMs(1);
    cc3.endCallWithError();

    clock1.addMs(15000);
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