Examples of HelixRebalancer

      IdealState idealState = resourceConfig.getIdealState();
      StateModelDefinition stateModelDef = stateModelDefs.get(idealState.getStateModelDefId());
      ResourceAssignment resourceAssignment = null;
      // use a cached rebalancer if possible
      RebalancerRef ref = idealState.getRebalancerRef();
      HelixRebalancer rebalancer = null;
      if (_rebalancerMap.containsKey(resourceId)) {
        HelixRebalancer candidateRebalancer = _rebalancerMap.get(resourceId);
        if (ref != null && candidateRebalancer.getClass().equals(ref.toString())) {
          rebalancer = candidateRebalancer;
        }
      }


      // otherwise instantiate a new one

      RebalancerConfig rebalancerConfig = resourceConfig.getRebalancerConfig();
      RebalancerContext context = rebalancerConfig.getRebalancerContext(RebalancerContext.class);
      StateModelDefinition stateModelDef = stateModelDefs.get(context.getStateModelDefId());
      ResourceAssignment resourceAssignment = null;
      if (rebalancerConfig != null) {
        HelixRebalancer rebalancer = rebalancerConfig.getRebalancer();
        HelixManager manager = event.getAttribute("helixmanager");
        if (rebalancer == null) {
          rebalancer = new FallbackRebalancer();
        }
        rebalancer.init(manager);
        resourceAssignment =
            rebalancer.computeResourceMapping(rebalancerConfig, cluster, currentStateOutput);
      }
      if (resourceAssignment == null) {
        resourceAssignment =
            mapDroppedResource(cluster, resourceId, currentStateOutput, stateModelDef);
      } else {

Examples of HelixRebalancer

Examples of org.apache.helix.controller.rebalancer.HelixRebalancer

Examples of org.apache.helix.controller.rebalancer.HelixRebalancer