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+# Proposal for Incubation
+
+## Subproject name
+
+Jupyter Enterprise Gateway ('jupyter-incubator/enterprise_gateway')
+
+## Development team and Advocate
+
+* Luciano Resende, IBM ('@lresende')
+* Kevin Bates, IBM ('@kevin-bates')
+* Christian Kadner, IBM ('@ckadner')
+* Kun Liu, IBM ('@liukun1016')
+* Alan Chin, IBM ('@akchinSTC')
+* Sherry Guo, IBM ('@sherryxg')
+* Fred Reiss, IBM ('@frreiss')
+* Sanjay Saxena ('@sanjay-saxena')
+
+Who is the Steering Council Advocate for this Subproject?
+
+* Kyle Kelley ('@rgbkrk')
+* Peter Parente ('@parente')
+
+## Subproject goals, scope and functionality
+
+### Problem
+Founded in academia, the Jupyter projects provide a rich and highly popular set of applications for
+interacting with and iterating on large and complex applications.  It has been truly ground-breaking.
+However, when we first attempted to build a Notebook service that could enable a large number of data
+scientists to run frequent and large workloads against a large Apache Spark cluster, we identified
+several requirements that were not currently available in the Jupyter open source ecosystem. We tried
+to use the Jupyter Kernel Gateway project, but we quickly realized that the JKG server became the
+bottleneck because the co-located Spark driver application for these kinds of workloads (in this case,
+the kernel process running on behalf of notebook cells) were extremely resource intensive. Toss in a team
+or organization of data scientists, and you quickly saturate the compute resources of the Kernel Gateway
+server.
+
+### Goals
+The primary goal behind Jupyter Enterprise Gateway is to address the gaps identified during our experience
+described above and provide a lightweight, multi-tenant gateway that enables many notebook users to share
+a single Spark Cluster and run kernels as managed resources within the cluster (i.e. Yarn Cluster mode).
+By providing tight integration with the resource manager used by the Spark cluster, we avoid resource starvation
+caused by multiple processes that are unaware of each other and compete for the same resources.  We can also provide
+complex scheduling capabilities such as [capacity scheduling and priority queues](https://hadoop.apache.org/docs/r2.7.4/hadoop-yarn/hadoop-yarn-site/CapacityScheduler.html)
+with a very low development cost, thus satisfying Enterprise Administrators manageability and security
+requirements. Although the Apache Yarn resource manager is immediately supported, we have plans to support
+others such as Spark on Kubernetes in the near future utilizing the existing resource manager pluggable framework.
+
+We strive to not alter any kernel code itself.  As a result, we've developed kernel launchers that essentially
+house the target kernel and serve as life-cycle managers for functionality like interrupt or, in some cases,
+kernel termination.
+
+![System Diagram](system-diagram.jpg)
+
+### Scope
+In general, Enterprise Gateway is intended to the address the needs of enterprise and cloud administrators
+such that cluster resource utilization is optimized across all applications, including those of data scientists
+performing analysis via Notebooks residing on their desktops.
+
+### Use Cases
+
+*As a data scientist, I want to attach a local Jupyter Notebook server to the enterprise/cloud shared compute cluster
+to run compute-intensive analytical workload (e.g. multi-tenant interactive gateway to Apache Spark cluster).
+
+* As an Spark Cluster administrator, I want to enable notebook users to utilize all the computing resources available
+in the enterprise/cloud compute cluster to run analytical workloads in a managed and secure way.
+
+* As an administrator, I want enforce user isolation such that notebook kernel processes are protected against each
+other allowing users to preserve and leverage their own environment, i.e. libraries and/or packages, data, etc.
+
+## Audience
+
+Platform Engineers and Apache Spark Administrators that want to enable Data Scientists and other Jupyter
+Notebook users to connect and share existing Spark cluster resources when executing their notebooks.
+
+
+## Other options
+
+Enterprise Gateway has very close affinity with Kernel Gateway and could be considered the next generation of JKG.
+As JKG is planning to move its functionality directly to Jupyter Notebook (see [JKG-259 ](https://github.com/jupyter/kernel_gateway/issues/259)
+and [JUPYTER-2644 ](https://github.com/jupyter/notebook/issues/2644)), and based on recommendation from some
+members from the JKG community, we have decided to boostrap a new project (“Enterprise Gateway”). We expect that in
+the future, once functionality has been moved out of JKG, Enterprise Gateway will have a direct dependency on the
+Notebook server.
+
+Other projects have tried to solve the 'remote kernel' problem (e.g. [remotekernel](https://github.com/danielballan/remotekernel)
+or [remote_ikernel](https://bitbucket.org/tdaff/remote_ikernel)) but these seem to be providing a wrapper/proxy kernel
+that will introduce a level of indirection that can cause side-effects. In any case, they do not provide any integration
+with Spark and its resource manager.
+
+As for JupyterHub, we believe its a full solution, providing capabilities to spawn and manage Notebook servers per
+user. In this scenario, the JupyterHub will be independently consuming and managing cluster compute resources that
+compete directly with managed resources.  This may lead to operational and management issues for cluster administrators.
+
+## Integration with Project Jupyter
+
+Enterprise Gateway is based on the Jupyter Notebook stack, and directly extends Kernel Gateway, Notebook Server,
+and Jupyter Client. These components, including it's transient dependencies to other projects are all used and
+required by Jupyter Enterprise Gateway.
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