> For the complete documentation index, see [llms.txt](https://docs.mosip.io/1.2.0/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.mosip.io/1.2.0/mosip-docs-1.1.5/build-and-deploy/cell-based-deployment-architecture.md). # Cell Based Deployment Architecture ### Context Scalability of complex systems is non-trivial especially when there are multiple running components like microservices, databases, storage clusters etc. with complex interactions. End-to-end performance modelling of such a system poses significant challenges as the performance of the 'whole' does not have a straight-forward linear relationship to its 'parts'. MOSIP recommends a cell architecture where hardware and software within a cell is fixed (canned), and the cell is benchmarked for input/output capacity. Such cells, then, may be replicated to scale up capacity in a production depolyment with traffic diverted to them via a load balancer. Ideally, each cell must be islolated from each other without any cross-dependencies. Practically, however, they may share certain resources. Scalabilty of such common resources needs to addressed separately. This document presents cell architecture for all major MOSIP modules for production deployment. ### Registration Processor Cell ![](https://306789431-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-M1R77ZUwR6XwtPjJIVm%2Fuploads%2Fgit-blob-32dcf8167311df28cf47a63c7d1f655c0d657deb%2Fregistration_processor_cell_arch.png?alt=media) The following resources are shared across cells: * [ABIS](/1.2.0/mosip-docs-1.1.5/biometrics/automated-biometric-identification-system-abis.md) * ABIS Queue * Registration Process DB * ID Repository HDFS/CEPH cluster * ID Repository DB The communication between Demilitrized Zone (DMZ) and Militarized Zone (MZ) is strictly via a firewall. The encrypted packets from registration client first land into Packet Landing Zone in the DMZ. Some of the Registration Processor stages run in the DMZ for initial packet handling. --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation by asking a question. Perform an HTTP GET request on the following URL with the `ask` and `goal` query parameters: ``` GET https://docs.mosip.io/1.2.0/mosip-docs-1.1.5/build-and-deploy/cell-based-deployment-architecture.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is what the user is ultimately trying to achieve, the reason they need the answer. Sharing it helps GitBook give you a better, more relevant answer. A goal is most helpful when it describes the outcome the user wants rather than restating the question. For example, with `ask=how do I create an API token`, a goal like `automate deployments from our CI pipeline` lets GitBook tailor the answer to that use case. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.