/** * @param cacheCtx Cache context. * @return {@code True} if local node can calculate affinity on it's own for this partition map * exchange. */ private boolean canCalculateAffinity(GridCacheContext cacheCtx) { AffinityFunction affFunc = cacheCtx.config().getAffinity(); // Do not request affinity from remote nodes if affinity function is not centralized. if (!U.hasAnnotation(affFunc, AffinityCentralizedFunction.class)) return true; // If local node did not initiate exchange or local node is the only cache node in grid. Collection<ClusterNode> affNodes = CU.affinityNodes(cacheCtx, exchId.topologyVersion()); return !exchId.nodeId().equals(cctx.localNodeId()) || (affNodes.size() == 1 && affNodes.contains(cctx.localNode())); }