# Cross DC architecture **URL:** \ **Category:** Community Support\ **Tags:** elasticsearch, xdc\ **Created:** [December 7, 2020, 9:03am UTC](https://community.temporal.io/t/cross-dc-architecture/1133 "2020-12-07T09:03:11Z")\ **Posts on this page:** 1\ **Showing post:** 4
**Author:** ![madhu](https://avatars.discourse-cdn.com/v4/letter/m/a8b319/32.png) [@madhu](https://community.temporal.io/u/madhu)\ **Post date:** [December 8, 2020, 2:46pm UTC](https://community.temporal.io/t/cross-dc-architecture/1133/4 "2020-12-08T14:46:28Z")
few more threads on this > [@Cross data center replication setup](https://community.temporal.io/t/cross-data-center-replication-setup/475/3): > > Ok i had similar questions, and i am trying to consolidate bits and pieces of info lying else where to get this thread moving ( and possibly this can serve as unofficial document) Disclaimer : i have not attempted to set this up yet/ or tried these out smileysmiley At high level cross dc/xdc architecture look something like [this post](https://community.temporal.io/t/temporal-with-aurora-db/357/5) So In my opinion one need to a) setup two independent temporal clusters using existing [helms](https://github.com/temporalio/helm-charts#default-installation-batteries-included) b)Enable global namespace in cluster metadata section c) co… > [@Global domain registration in java sdk](https://community.temporal.io/t/global-domain-registration-in-java-sdk/282): > > I am using temporal 27 ,when i try to register a global domain, its failing unable to register domain Version temporal 27 Request sent : RegisterNamespaceRequest request = RegisterNamespaceRequest.newBuilder().setName(ns) .setEmitMetric(true) .setHistoryArchivalState(ArchivalState.ARCHIVAL\_STATE\_ENABLED) .setIsGlobalNamespace(true) .setOwnerEmail(“[me@myself.me](mailto:me@myself.me)”) .setWorkflowExecutionRetentionPeriodDays(5).build(); int retryCount = 0; // in while loop i attempt registration with th… > [@Temporal with Aurora db](https://community.temporal.io/t/temporal-with-aurora-db/357/5): > > This area has always been confusing, are you saying with XDC settings, each cluster can have its own database and temporal will replicate all info from the primary namespace/domain to secondary automatically? --- _[View the full topic](https://community.temporal.io/t/cross-dc-architecture/1133)._