Package org.apache.helix.model

Examples of org.apache.helix.model.CurrentState

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        String resourceName = message.getResourceName();
        if (!curResourceNames.contains(resourceName) && !createCurStateNames.contains(resourceName)) {
          createCurStateNames.add(resourceName);
          createCurStateKeys.add(keyBuilder.currentState(instanceName, sessionId, resourceName));

          CurrentState metaCurState = new CurrentState(resourceName);
          metaCurState.setBucketSize(message.getBucketSize());
          metaCurState.setStateModelDefRef(message.getStateModelDef());
          metaCurState.setSessionId(sessionId);
          metaCurState.setBatchMessageMode(message.getBatchMessageMode());
          String ftyName = message.getStateModelFactoryName();
          if (ftyName != null) {
            metaCurState.setStateModelFactoryName(ftyName);
          } else {
            metaCurState.setStateModelFactoryName(HelixConstants.DEFAULT_STATE_MODEL_FACTORY);
          }

          metaCurStates.add(metaCurState);
        }
      }
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  public String getResourceStateModelDef(String resourceName) {
    return _resourceStateModelMap.get(resourceName);
  }

  public void setBucketSize(String resource, int bucketSize) {
    CurrentState curStateMeta = _curStateMetaMap.get(resource);
    if (curStateMeta == null) {
      curStateMeta = new CurrentState(resource);
      _curStateMetaMap.put(resource, curStateMeta);
    }
    curStateMeta.setBucketSize(bucketSize);
  }
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    curStateMeta.setBucketSize(bucketSize);
  }

  public int getBucketSize(String resource) {
    int bucketSize = 0;
    CurrentState curStateMeta = _curStateMetaMap.get(resource);
    if (curStateMeta != null) {
      bucketSize = curStateMeta.getBucketSize();
    }

    return bucketSize;
  }
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    accessor.setProperty(keyBuilder.externalView("db-12345"), extView);
    Thread.sleep(100);
    AssertJUnit.assertTrue(testListener.externalViewChangeReceived);
    testListener.Reset();

    CurrentState curState = new CurrentState("db-12345");
    curState.setSessionId("sessionId");
    curState.setStateModelDefRef("StateModelDef");
    accessor.setProperty(keyBuilder.currentState("localhost_8900", testHelixManager.getSessionId(),
        curState.getId()), curState);
    Thread.sleep(100);
    AssertJUnit.assertTrue(testListener.currentStateChangeReceived);
    testListener.Reset();

    IdealState idealState = new IdealState("db-1234");
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      }
    }

    // check partition is in ERROR state
    String sessionId = liveInstance.getSessionId();
    CurrentState curState =
        accessor.getProperty(keyBuilder.currentState(instanceName, sessionId, resourceName));
    for (String partitionName : resetPartitionNames) {
      if (!curState.getState(partitionName).equals(HelixDefinedState.ERROR.toString())) {
        throw new HelixException("Can't reset state for " + resourceName + "/" + partitionNames
            + " on " + instanceName + ", because not all " + partitionNames + " are in ERROR state");
      }
    }
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      }
    }

    // check partition is in ERROR state
    SessionId sessionId = liveInstance.getTypedSessionId();
    CurrentState curState =
        accessor.getProperty(keyBuilder.currentState(instanceName, sessionId.stringify(),
            resourceName));
    for (String partitionName : resetPartitionNames) {
      if (!curState.getState(partitionName).equals(HelixDefinedState.ERROR.toString())) {
        throw new HelixException("Can't reset state for " + resourceName + "/" + partitionNames
            + " on " + instanceName + ", because not all " + partitionNames + " are in ERROR state");
      }
    }
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    Assert.assertEquals(stateMap.size(), 1);
    Assert.assertEquals(stateMap.keySet().iterator().next(), "localhost_12918");
    Assert.assertEquals(stateMap.get("localhost_12918"), HelixDefinedState.ERROR.name());

    // localhost_12918 should have TestDB0_4 in ERROR state
    CurrentState cs =
        accessor.getProperty(keyBuilder.currentState(participants[0].getInstanceName(),
            participants[0].getSessionId(), "TestDB0"));
    Map<String, String> partitionStateMap = cs.getPartitionStateMap();
    Assert.assertEquals(partitionStateMap.size(), 1);
    Assert.assertEquals(partitionStateMap.keySet().iterator().next(), "TestDB0_4");
    Assert.assertEquals(partitionStateMap.get("TestDB0_4"), HelixDefinedState.ERROR.name());

    // all other participants should have cleaned up empty current state
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        map.put(CurrentState.CurrentStateProperty.REQUESTED_STATE.name(), null);
        rec.getMapFields().put(partitionName, map);
        ZNRecordDelta delta = new ZNRecordDelta(rec, ZNRecordDelta.MergeOperation.SUBTRACT);
        List<ZNRecordDelta> deltaList = new ArrayList<ZNRecordDelta>();
        deltaList.add(delta);
        CurrentState currStateUpdate = new CurrentState(resource);
        currStateUpdate.setDeltaList(deltaList);
        // Update the ZK current state of the node
        accessor.updateProperty(key, currStateUpdate);
        _stateModel.setRequestedState(null);
      } catch (Exception e) {
        logger.error(
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    try {
      // set current state to ERROR for the partition
      // if the transition is not canceled, it should go into error state
      if (code == ErrorCode.ERROR) {
        CurrentState currentStateDelta = new CurrentState(resourceId.stringify());
        currentStateDelta.setState(partition, State.from(HelixDefinedState.ERROR.toString()));
        _stateModel.updateState(HelixDefinedState.ERROR.toString());

        // if transit from ERROR state, disable the partition
        if (_message.getTypedFromState().toString()
            .equalsIgnoreCase(HelixDefinedState.ERROR.toString())) {
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            && !createCurStateNames.contains(resourceId.stringify())) {
          createCurStateNames.add(resourceId.stringify());
          createCurStateKeys.add(keyBuilder.currentState(instanceName, sessionId,
              resourceId.stringify()));

          CurrentState metaCurState = new CurrentState(resourceId.stringify());
          metaCurState.setBucketSize(message.getBucketSize());
          metaCurState.setStateModelDefRef(message.getStateModelDef());
          metaCurState.setSessionId(SessionId.from(sessionId));
          metaCurState.setBatchMessageMode(message.getBatchMessageMode());
          String ftyName = message.getStateModelFactoryName();
          if (ftyName != null) {
            metaCurState.setStateModelFactoryName(ftyName);
          } else {
            metaCurState.setStateModelFactoryName(HelixConstants.DEFAULT_STATE_MODEL_FACTORY);
          }

          metaCurStates.add(metaCurState);
        }
      }
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Related Classes of org.apache.helix.model.CurrentState

  • org.apache.helix.api.accessor.ParticipantAccessor
  • org.apache.helix.api.TestNewStages
  • org.apache.helix.controller.rebalancer.AutoRebalancer
  • org.apache.helix.controller.stages.BestPossibleStateCalcStage
  • org.apache.helix.controller.stages.CurrentStateOutput
  • org.apache.helix.controller.stages.ResourceComputationStage
  • org.apache.helix.controller.stages.ResourceCurrentState
  • org.apache.helix.controller.stages.TestCurrentStateComputationStage
  • org.apache.helix.controller.stages.TestRebalancePipeline
  • org.apache.helix.controller.stages.TestResourceComputationStage
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