Package org.infinispan.distribution.ch

Examples of org.infinispan.distribution.ch.ConsistentHashFactory

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         return;

      int unionTopologyId = 0;
      ConsistentHash currentCHUnion = null;
      ConsistentHash pendingCHUnion = null;
      ConsistentHashFactory chFactory = cacheStatus.getJoinInfo().getConsistentHashFactory();
      for (CacheTopology topology : partitionTopologies) {
         if (topology.getTopologyId() > unionTopologyId) {
            unionTopologyId = topology.getTopologyId();
         }
         if (currentCHUnion == null) {
            currentCHUnion = topology.getCurrentCH();
         } else {
            currentCHUnion = chFactory.union(currentCHUnion, topology.getCurrentCH());
         }

         if (pendingCHUnion == null) {
            pendingCHUnion = topology.getPendingCH();
         } else {
            if (topology.getPendingCH() != null)
               pendingCHUnion = chFactory.union(pendingCHUnion, topology.getPendingCH());
         }
      }

      // We have added each node to the cache status when we received its status response
      List<Address> members = cacheStatus.getMembers();
      if (currentCHUnion != null) {
         currentCHUnion = chFactory.updateMembers(currentCHUnion, members);
      }
      if (pendingCHUnion != null) {
         pendingCHUnion = chFactory.updateMembers(pendingCHUnion, members);
      }

      // Make sure the topology id is higher than any topology id we had before in the cluster
      unionTopologyId += 2;
      CacheTopology cacheTopology = new CacheTopology(unionTopologyId, currentCHUnion, pendingCHUnion);
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            newMembers.removeAll(currentCH.getMembers());
            log.tracef("Ignoring request to rebalance cache %s, we have new leavers: %s", cacheName, newMembers);
            return;
         }

         ConsistentHashFactory chFactory = cacheStatus.getJoinInfo().getConsistentHashFactory();
         // This update will only add the joiners to the CH, we have already checked that we don't have leavers
         ConsistentHash updatedMembersCH = chFactory.updateMembers(currentCH, newMembers);
         ConsistentHash balancedCH = chFactory.rebalance(updatedMembersCH);
         if (balancedCH.equals(currentCH)) {
            log.tracef("The balanced CH is the same as the current CH, not rebalancing");
            return;
         }
         CacheTopology newTopology = new CacheTopology(newTopologyId, currentCH, balancedCH);
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   /**
    * @return {@code true} if the topology was changed, {@code false} otherwise
    */
   private boolean updateTopologyAfterMembershipChange(String cacheName, ClusterCacheStatus cacheStatus) {
      synchronized (cacheStatus) {
         ConsistentHashFactory consistentHashFactory = cacheStatus.getJoinInfo().getConsistentHashFactory();
         int topologyId = cacheStatus.getCacheTopology().getTopologyId();
         ConsistentHash currentCH = cacheStatus.getCacheTopology().getCurrentCH();
         ConsistentHash pendingCH = cacheStatus.getCacheTopology().getPendingCH();
         if (!cacheStatus.needConsistentHashUpdate()) {
            log.tracef("Cache %s members list was updated, but the cache topology doesn't need to change: %s",
                  cacheName, cacheStatus.getCacheTopology());
            return false;
         }

         List<Address> newCurrentMembers = cacheStatus.pruneInvalidMembers(currentCH.getMembers());
         if (newCurrentMembers.isEmpty()) {
            CacheTopology newTopology = new CacheTopology(topologyId + 1, null, null);
            cacheStatus.updateCacheTopology(newTopology);
            log.tracef("Initial topology installed for cache %s: %s", cacheName, newTopology);
            return false;
         }
         ConsistentHash newCurrentCH = consistentHashFactory.updateMembers(currentCH, newCurrentMembers);
         ConsistentHash newPendingCH = null;
         if (pendingCH != null) {
            List<Address> newPendingMembers = cacheStatus.pruneInvalidMembers(pendingCH.getMembers());
            newPendingCH = consistentHashFactory.updateMembers(pendingCH, newPendingMembers);
         }
         CacheTopology newTopology = new CacheTopology(topologyId, newCurrentCH, newPendingCH);
         cacheStatus.updateCacheTopology(newTopology);
         log.tracef("Cache %s topology updated: %s", cacheName, newTopology);
         return true;
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         return;

      int unionTopologyId = 0;
      ConsistentHash currentCHUnion = null;
      ConsistentHash pendingCHUnion = null;
      ConsistentHashFactory chFactory = cacheStatus.getJoinInfo().getConsistentHashFactory();
      for (CacheTopology topology : partitionTopologies) {
         if (topology.getTopologyId() > unionTopologyId) {
            unionTopologyId = topology.getTopologyId();
         }
         if (currentCHUnion == null) {
            currentCHUnion = topology.getCurrentCH();
         } else {
            currentCHUnion = chFactory.union(currentCHUnion, topology.getCurrentCH());
         }

         if (pendingCHUnion == null) {
            pendingCHUnion = topology.getPendingCH();
         } else {
            if (topology.getPendingCH() != null)
               pendingCHUnion = chFactory.union(pendingCHUnion, topology.getPendingCH());
         }
      }

      // We have added each node to the cache status when we received its status response
      List<Address> members = cacheStatus.getMembers();
      if (currentCHUnion != null) {
         currentCHUnion = chFactory.updateMembers(currentCHUnion, members);
      }
      if (pendingCHUnion != null) {
         pendingCHUnion = chFactory.updateMembers(pendingCHUnion, members);
      }

      // Make sure the topology id is higher than any topology id we had before in the cluster
      unionTopologyId += 2;
      CacheTopology cacheTopology = new CacheTopology(unionTopologyId, currentCHUnion, pendingCHUnion);
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            newMembers.removeAll(currentCH.getMembers());
            log.tracef("Ignoring request to rebalance cache %s, we have new leavers: %s", cacheName, newMembers);
            return;
         }

         ConsistentHashFactory chFactory = cacheStatus.getJoinInfo().getConsistentHashFactory();
         // This update will only add the joiners to the CH, we have already checked that we don't have leavers
         ConsistentHash updatedMembersCH = chFactory.updateMembers(currentCH, newMembers);
         ConsistentHash balancedCH = chFactory.rebalance(updatedMembersCH);
         if (balancedCH.equals(currentCH)) {
            log.tracef("The balanced CH is the same as the current CH, not rebalancing");
            return;
         }
         CacheTopology newTopology = new CacheTopology(newTopologyId, currentCH, balancedCH);
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   /**
    * @return {@code true} if the topology was changed, {@code false} otherwise
    */
   private boolean updateTopologyAfterMembershipChange(String cacheName, ClusterCacheStatus cacheStatus) {
      synchronized (cacheStatus) {
         ConsistentHashFactory consistentHashFactory = cacheStatus.getJoinInfo().getConsistentHashFactory();
         int topologyId = cacheStatus.getCacheTopology().getTopologyId();
         ConsistentHash currentCH = cacheStatus.getCacheTopology().getCurrentCH();
         ConsistentHash pendingCH = cacheStatus.getCacheTopology().getPendingCH();
         if (!cacheStatus.needConsistentHashUpdate()) {
            log.tracef("Cache %s members list was updated, but the cache topology doesn't need to change: %s",
                  cacheName, cacheStatus.getCacheTopology());
            return false;
         }

         List<Address> newCurrentMembers = cacheStatus.pruneInvalidMembers(currentCH.getMembers());
         if (newCurrentMembers.isEmpty()) {
            CacheTopology newTopology = new CacheTopology(topologyId + 1, null, null);
            cacheStatus.updateCacheTopology(newTopology);
            log.tracef("Initial topology installed for cache %s: %s", cacheName, newTopology);
            return false;
         }
         ConsistentHash newCurrentCH = consistentHashFactory.updateMembers(currentCH, newCurrentMembers);
         ConsistentHash newPendingCH = null;
         if (pendingCH != null) {
            List<Address> newPendingMembers = cacheStatus.pruneInvalidMembers(pendingCH.getMembers());
            newPendingCH = consistentHashFactory.updateMembers(pendingCH, newPendingMembers);
         }
         CacheTopology newTopology = new CacheTopology(topologyId + 1, newCurrentCH, newPendingCH);
         cacheStatus.updateCacheTopology(newTopology);
         log.tracef("Cache %s topology updated: %s", cacheName, newTopology);
         return true;
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         return;

      int unionTopologyId = 0;
      ConsistentHash currentCHUnion = null;
      ConsistentHash pendingCHUnion = null;
      ConsistentHashFactory chFactory = cacheStatus.getJoinInfo().getConsistentHashFactory();
      for (CacheTopology topology : partitionTopologies) {
         if (topology.getTopologyId() > unionTopologyId) {
            unionTopologyId = topology.getTopologyId();
         }
         if (currentCHUnion == null) {
            currentCHUnion = topology.getCurrentCH();
         } else {
            currentCHUnion = chFactory.union(currentCHUnion, topology.getCurrentCH());
         }

         if (pendingCHUnion == null) {
            pendingCHUnion = topology.getPendingCH();
         } else {
            if (topology.getPendingCH() != null)
               pendingCHUnion = chFactory.union(pendingCHUnion, topology.getPendingCH());
         }
      }

      // We have added each node to the cache status when we received its status response
      List<Address> members = cacheStatus.getMembers();
      if (currentCHUnion != null) {
         currentCHUnion = chFactory.updateMembers(currentCHUnion, members);
      }
      if (pendingCHUnion != null) {
         pendingCHUnion = chFactory.updateMembers(pendingCHUnion, members);
      }

      // Make sure the topology id is higher than any topology id we had before in the cluster
      unionTopologyId += 2;
      CacheTopology cacheTopology = new CacheTopology(unionTopologyId, currentCHUnion, pendingCHUnion);
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            newMembers.removeAll(currentCH.getMembers());
            log.tracef("Ignoring request to rebalance cache %s, we have new leavers: %s", cacheName, newMembers);
            return;
         }

         ConsistentHashFactory chFactory = cacheStatus.getJoinInfo().getConsistentHashFactory();
         // This update will only add the joiners to the CH, we have already checked that we don't have leavers
         ConsistentHash updatedMembersCH = chFactory.updateMembers(currentCH, newMembers);
         ConsistentHash balancedCH = chFactory.rebalance(updatedMembersCH);
         if (balancedCH.equals(currentCH)) {
            log.tracef("The balanced CH is the same as the current CH, not rebalancing");
            return;
         }
         CacheTopology newTopology = new CacheTopology(newTopologyId, currentCH, balancedCH);
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   /**
    * @return {@code true} if the topology was changed, {@code false} otherwise
    */
   private boolean updateTopologyAfterMembershipChange(String cacheName, ClusterCacheStatus cacheStatus) {
      synchronized (cacheStatus) {
         ConsistentHashFactory consistentHashFactory = cacheStatus.getJoinInfo().getConsistentHashFactory();
         int topologyId = cacheStatus.getCacheTopology().getTopologyId();
         ConsistentHash currentCH = cacheStatus.getCacheTopology().getCurrentCH();
         ConsistentHash pendingCH = cacheStatus.getCacheTopology().getPendingCH();
         if (!cacheStatus.needConsistentHashUpdate()) {
            log.tracef("Cache %s members list was updated, but the cache topology doesn't need to change: %s",
                  cacheName, cacheStatus.getCacheTopology());
            return false;
         }

         List<Address> newCurrentMembers = cacheStatus.pruneInvalidMembers(currentCH.getMembers());
         if (newCurrentMembers.isEmpty()) {
            CacheTopology newTopology = new CacheTopology(topologyId + 1, null, null);
            cacheStatus.updateCacheTopology(newTopology);
            log.tracef("Initial topology installed for cache %s: %s", cacheName, newTopology);
            return false;
         }
         ConsistentHash newCurrentCH = consistentHashFactory.updateMembers(currentCH, newCurrentMembers);
         ConsistentHash newPendingCH = null;
         if (pendingCH != null) {
            List<Address> newPendingMembers = cacheStatus.pruneInvalidMembers(pendingCH.getMembers());
            newPendingCH = consistentHashFactory.updateMembers(pendingCH, newPendingMembers);
         }
         CacheTopology newTopology = new CacheTopology(topologyId, newCurrentCH, newPendingCH);
         cacheStatus.updateCacheTopology(newTopology);
         log.tracef("Cache %s topology updated: %s", cacheName, newTopology);
         return true;
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      synchronized (this) {
         // The current topology might be null just after a joiner became the coordinator
         if (currentTopology == null) {
            createInitialCacheTopology();
         }
         ConsistentHashFactory consistentHashFactory = getJoinInfo().getConsistentHashFactory();
         int topologyId = currentTopology.getTopologyId();
         int rebalanceId = currentTopology.getRebalanceId();
         ConsistentHash currentCH = currentTopology.getCurrentCH();
         ConsistentHash pendingCH = currentTopology.getPendingCH();
         if (!needConsistentHashUpdate()) {
            log.tracef("Cache %s members list was updated, but the cache topology doesn't need to change: %s",
                  cacheName, currentTopology);
            return;
         }

         if (newMembers.isEmpty()) {
            log.tracef("Cache %s no longer has any members, removing topology", cacheName);
            setCurrentTopology(null);
            setStableTopology(null);
            // TODO Remove the cache from the cache status map in ClusterTopologyManagerImpl instead
            return;
         }

         ConsistentHash newCurrentCH = consistentHashFactory.updateMembers(currentCH, newMembers, getCapacityFactors());
         ConsistentHash newPendingCH = null;
         if (pendingCH != null) {
            List<Address> newPendingMembers = pruneInvalidMembers(pendingCH.getMembers());
            newPendingCH = consistentHashFactory.updateMembers(pendingCH, newPendingMembers, getCapacityFactors());
         }
         CacheTopology newTopology = new CacheTopology(topologyId + 1, rebalanceId, newCurrentCH, newPendingCH);
         setCurrentTopology(newTopology);
         newTopology.logRoutingTableInformation();
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Related Classes of org.infinispan.distribution.ch.ConsistentHashFactory

  • org.infinispan.topology.CacheJoinInfo$Externalizer
  • org.infinispan.topology.ClusterCacheStatus
  • org.infinispan.topology.ClusterTopologyManagerImpl
  • org.infinispan.topology.DefaultRebalancePolicy
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