test

        if (!g_Cluster || !g_Cluster->isRunning())

            return;

        // While scrub/rebuild is running, blocks may not be on all nodes

        // yet — skip the expensive network fetch and use cached data.

        if (g_Cluster->isScrubRunning()) {

            auto cache = getDomainCache();

            if (!cache->buffer.empty() && _Buffer.size() <= sizeof(AuthHeader)) {

                _Buffer = cache->buffer;

                _ClusterDataExists.store(_Buffer.size() > sizeof(AuthHeader));

            }

            return;

        }

        auto cache = getDomainCache();

        auto now = std::chrono::steady_clock::now();

                        std::cerr << "Cluster: recovered — all "

                                  << health.nodes_online << "/" << n

                                  << " nodes online";

                        recovery_epoch_.fetch_add(1);

                        // Auto-scrub after recovery — but only when domain

                        // backends are loaded, otherwise scrub would treat

                        // all domain groups as orphaned and delete them.

                        // Do NOT bump recovery_epoch_ here — wait until

                        // scrub has repaired/rebalanced data so that

                        // backends don't attempt fetches before blocks

                        // are available on all nodes.

                        if (domains_ready_.load()) {

                            std::cerr << ", starting scrub" << std::endl;

                            std::thread([this](){

                            }).detach();

                        } else {

                            std::cerr << " (scrub deferred — domains not ready)" << std::endl;

                            // No scrub possible yet, bump epoch so backends

                            // at least try once when domains become ready.

                            recovery_epoch_.fetch_add(1);

                        }

                        healthy_cycles = 0;

                    }