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itemtype="https://schema.org/ListItem" class="breadcrumbs__item"><span class="breadcrumbs__link" itemprop="item name">Design Docs</span><meta itemprop="position" content="1"></li><li itemscope="" itemprop="itemListElement" itemtype="https://schema.org/ListItem" class="breadcrumbs__item"><span class="breadcrumbs__link" itemprop="item name">Submarine Server</span><meta itemprop="position" content="2"></li><li itemscope="" itemprop="itemListElement" itemtype="https://schema.org/ListItem" class="breadcrumbs__item breadcrumbs__item--active"><span class="breadcrumbs__link" itemprop="item name">Submarine Server Implementation</span><meta itemprop="position" content="3"></li></ul></nav><span class="theme-doc-version-badge badge badge--secondary">Version: master 🏃</span><div class="tocCollapsible_jdIR theme-doc-toc-mobile tocMobile_TmEX"><button type="button" class="clean-btn tocCollapsibleButton_Fzxq">On this page</button></div><div class="theme-doc-markdown markdown"><header><h1>Submarine Server Implementation</h1></header><h2 class="anchor anchorWithStickyNavbar_mojV" id="architecture-overview">Architecture Overview<a class="hash-link" href="#architecture-overview" title="Direct link to heading"></a></h2><div class="codeBlockContainer_I0IT theme-code-block"><div class="codeBlockContent_wNvx" style="color:#bfc7d5;background-color:#292d3e"><pre tabindex="0" class="prism-code language-text codeBlock_jd64 thin-scrollbar"><code class="codeBlockLines_mRuA"><span class="token-line" style="color:#bfc7d5"><span class="token plain"> +---------------Submarine Server ---+</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> | |</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> | +------------+ +------------+ |</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> | |Web Svc/Prxy| |Backend Svc | | +--Submarine Asset +</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> | +------------+ +------------+ | |Project/Notebook |</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> | ^ ^ | |Model/Metrics |</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> +---|---------|---------------------+ |Libraries/Dataset |</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> | | +------------------+</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> | |</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> | +--|-Compute Cluster 1---+ +--Image Registry--+</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> + | | | | User's Images |</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> User / | + | | |</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> Admin | User Notebook Instance | +------------------+</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> | Experiment Runs |</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> +------------------------+ +-Data Storage-----+</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> | S3/HDFS, etc. |</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> +----Compute Cluster 2---+ | |</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> +------------------+</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> ...</span><br></span></code></pre><button type="button" aria-label="Copy code to clipboard" title="Copy" class="copyButton_eDfN clean-btn"><span class="copyButtonIcons_W9eQ" aria-hidden="true"><svg class="copyButtonIcon_XEyF" viewBox="0 0 24 24"><path d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg class="copyButtonSuccessIcon_i9w9" viewBox="0 0 24 24"><path d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div><p>Here's a diagram to illustrate the Submarine's deployment.</p><ul><li>Submarine Server consists of web service/proxy, and backend services. They're like "control planes" of Submarine, and users will interact with these services.</li><li>Submarine server could be a microservice architecture and can be deployed to one of the compute clusters. (see below, this will be useful when we only have one cluster).</li><li>There're multiple compute clusters that could be used by Submarine service. For user's running notebook instance, jobs, etc. they will be placed to one of the compute clusters by user's preference or defined policies.</li><li>Submarine's asset includes project/notebook(content)/models/metrics/dataset-meta, etc. can be stored inside Submarine's own database.</li><li>Datasets can be stored in various locations such as S3/HDFS.</li><li>Users can push container (such as Docker) images to a preconfigured registry in Submarine, so Submarine service can know how to pull required container images.</li><li>Image Registry/Data-Storage, etc. are outside of Submarine server's scope and should be managed by 3rd party applications.</li></ul><h2 class="anchor anchorWithStickyNavbar_mojV" id="submarine-server-and-its-apis">Submarine Server and its APIs<a class="hash-link" href="#submarine-server-and-its-apis" title="Direct link to heading"></a></h2><p>Submarine server is designed to allow data scientists to access notebooks, submit/manage jobs, manage models, create model training workflows, access datasets, etc.</p><p>Submarine Server exposed UI and REST API. Users can also use CLI / SDK to manage assets inside Submarine Server.</p><div class="codeBlockContainer_I0IT theme-code-block"><div class="codeBlockContent_wNvx" style="color:#bfc7d5;background-color:#292d3e"><pre tabindex="0" class="prism-code language-text codeBlock_jd64 thin-scrollbar"><code class="codeBlockLines_mRuA"><span class="token-line" style="color:#bfc7d5"><span class="token plain"> +----------+</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> | CLI |+---+</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> +----------+ v +----------------+</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> +--------------+ | Submarine |</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> +----------+ | REST API | | |</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> | SDK |+>| |+> Server |</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> +----------+ +--------------+ | |</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> ^ +----------------+</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> +----------+ |</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> | UI |+---+</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> +----------+</span><br></span></code></pre><button type="button" aria-label="Copy code to clipboard" title="Copy" class="copyButton_eDfN clean-btn"><span class="copyButtonIcons_W9eQ" aria-hidden="true"><svg class="copyButtonIcon_XEyF" viewBox="0 0 24 24"><path d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg class="copyButtonSuccessIcon_i9w9" viewBox="0 0 24 24"><path d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div><p>REST API will be used by the other 3 approaches. (CLI/SDK/UI)</p><p>The REST API Service handles HTTP requests and is responsible for authentication. It acts as the caller for the JobManager component.</p><p>The REST component defines the generic job spec which describes the detailed info about job. For more details, refer to <a href="https://docs.google.com/document/d/1kd-5UzsHft6gV7EuZiPXeWIKJtPqVwkNlqMvy0P_pAw/edit#" target="_blank" rel="noopener noreferrer">here</a>. (Please note that we're converting REST endpoint description from Java-based REST API to swagger definition, once that is done, we should replace the link with swagger definition spec).</p><h2 class="anchor anchorWithStickyNavbar_mojV" id="proposal">Proposal<a class="hash-link" href="#proposal" title="Direct link to heading"></a></h2><div class="codeBlockContainer_I0IT theme-code-block"><div class="codeBlockContent_wNvx" style="color:#bfc7d5;background-color:#292d3e"><pre tabindex="0" class="prism-code language-text codeBlock_jd64 thin-scrollbar"><code class="codeBlockLines_mRuA"><span class="token-line" style="color:#bfc7d5"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">+-----------+</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">| |</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">| workbench +---+ +----------------------------------+</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">| | | | +------+ +---------------------+ |</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">+-----------+ | | | | | +-------+ | | +---------------------+</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> | | | | | | K8s | | | | +--------+ +----+ |</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">+-----------+ | | | | | +-------+ | | | | +-->+job1| |</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">| | | | | | | submitter | | | | | +----+ |</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">| CLI +------>+ | REST | +---------------------+ +---->+ |operator| +----+ |</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">| | | | | | +---------------------+ | | | +-->+job2| |</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">+-----------+ | | | | | +-------+ +-------+ | | | +--------+ +----+ |</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> | | | | | |PlugMgr| |monitor| | | | K8s Cluster |</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">+-----------+ | | | | | +-------+ +-------+ | | +---------------------+</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">| | | | | | | JobManager | |</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">| SDK +---+ | +------+ +---------------------+ |</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">| | +----------------------------------+</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">+-----------+</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> client server</span><br></span></code></pre><button type="button" aria-label="Copy code to clipboard" title="Copy" class="copyButton_eDfN clean-btn"><span class="copyButtonIcons_W9eQ" aria-hidden="true"><svg class="copyButtonIcon_XEyF" viewBox="0 0 24 24"><path d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg class="copyButtonSuccessIcon_i9w9" viewBox="0 0 24 24"><path d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div><p>We propose to split the original core module in the old layout into two modules, CLI and server as shown in FIG. The submarine-client calls the REST APIs to submit and retrieve the job info. The submarine-server provides the REST service, job management, submitting the job to cluster, and running job in different clusters through the corresponding runtime.</p><h2 class="anchor anchorWithStickyNavbar_mojV" id="submarine-server-components">Submarine Server Components<a class="hash-link" href="#submarine-server-components" title="Direct link to heading"></a></h2><div class="codeBlockContainer_I0IT theme-code-block"><div class="codeBlockContent_wNvx" style="color:#bfc7d5;background-color:#292d3e"><pre tabindex="0" class="prism-code language-text codeBlock_jd64 thin-scrollbar"><code class="codeBlockLines_mRuA"><span class="token-line" style="color:#bfc7d5"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> +----------------------Submarine Server--------------------------------+</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> | +-----------------+ +------------------+ +--------------------+ |</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> | | Experiment | |Notebook Session | |Environment Mgr | |</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> | | Mgr | |Mgr | | | |</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> | +-----------------+ +------------------+ +--------------------+ |</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> | |</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> | +-----------------+ +------------------+ +--------------------+ |</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> | | Model Registry | |Model Serving Mgr | |Compute Cluster Mgr | |</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> | | | | | | | |</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> | +-----------------+ +------------------+ +--------------------+ |</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> | |</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> | +-----------------+ +------------------+ +--------------------+ |</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> | | DataSet Mgr | |User/Team | |Metadata Mgr | |</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> | | | |Permission Mgr | | | |</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> | +-----------------+ +------------------+ +--------------------+ |</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> +----------------------------------------------------------------------+</span><br></span></code></pre><button type="button" aria-label="Copy code to clipboard" title="Copy" class="copyButton_eDfN clean-btn"><span class="copyButtonIcons_W9eQ" aria-hidden="true"><svg class="copyButtonIcon_XEyF" viewBox="0 0 24 24"><path d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg class="copyButtonSuccessIcon_i9w9" viewBox="0 0 24 24"><path d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div><h3 class="anchor anchorWithStickyNavbar_mojV" id="experiment-manager">Experiment Manager<a class="hash-link" href="#experiment-manager" title="Direct link to heading"></a></h3><p>TODO</p><h3 class="anchor anchorWithStickyNavbar_mojV" id="notebook-sessions-manager">Notebook Sessions Manager<a class="hash-link" href="#notebook-sessions-manager" title="Direct link to heading"></a></h3><p>TODO</p><h3 class="anchor anchorWithStickyNavbar_mojV" id="environment-manager">Environment Manager<a class="hash-link" href="#environment-manager" title="Direct link to heading"></a></h3><p>TODO</p><h3 class="anchor anchorWithStickyNavbar_mojV" id="model-registry">Model Registry<a class="hash-link" href="#model-registry" title="Direct link to heading"></a></h3><p>TODO</p><h3 class="anchor anchorWithStickyNavbar_mojV" id="model-serving-manager">Model Serving Manager<a class="hash-link" href="#model-serving-manager" title="Direct link to heading"></a></h3><p>TODO</p><h3 class="anchor anchorWithStickyNavbar_mojV" id="compute-cluster-manager">Compute Cluster Manager<a class="hash-link" href="#compute-cluster-manager" title="Direct link to heading"></a></h3><p>TODO</p><h3 class="anchor anchorWithStickyNavbar_mojV" id="dataset-manager">Dataset Manager<a class="hash-link" href="#dataset-manager" title="Direct link to heading"></a></h3><p>TODO</p><h3 class="anchor anchorWithStickyNavbar_mojV" id="userteam-permissions-manager">User/team permissions manager<a class="hash-link" href="#userteam-permissions-manager" title="Direct link to heading"></a></h3><p>TODO</p><h3 class="anchor anchorWithStickyNavbar_mojV" id="metadata-manager">Metadata Manager<a class="hash-link" href="#metadata-manager" title="Direct link to heading"></a></h3><p>TODO</p><h2 class="anchor anchorWithStickyNavbar_mojV" id="componentsservices-outside-of-submarine-servers-scope">Components/services outside of Submarine Server's scope<a class="hash-link" href="#componentsservices-outside-of-submarine-servers-scope" title="Direct link to heading"></a></h2><p>TODO: Describe what are the out-of-scope components, which should be handled and managed outside of Submarine server. Candidates are: Identity management, data storage, metastore storage, etc.</p></div><footer class="theme-doc-footer docusaurus-mt-lg"><div class="theme-doc-footer-edit-meta-row row"><div class="col"><a href="https://github.com/apache/submarine/edit/master/website/docs/designDocs/submarine-server/architecture.md" target="_blank" rel="noreferrer noopener" class="theme-edit-this-page"><svg fill="currentColor" height="20" width="20" viewBox="0 0 40 40" class="iconEdit_dcUD" aria-hidden="true"><g><path d="m34.5 11.7l-3 3.1-6.3-6.3 3.1-3q0.5-0.5 1.2-0.5t1.1 0.5l3.9 3.9q0.5 0.4 0.5 1.1t-0.5 1.2z m-29.5 17.1l18.4-18.5 6.3 6.3-18.4 18.4h-6.3v-6.2z"></path></g></svg>Edit this page</a></div><div class="col lastUpdated_foO9"></div></div></footer></article><nav class="pagination-nav docusaurus-mt-lg" aria-label="Docs pages navigation"><div class="pagination-nav__item"><a class="pagination-nav__link" href="/zh-cn/docs/next/designDocs/storage-implementation"><div 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toc-highlight">Submarine Server Components</a><ul><li><a href="#experiment-manager" class="table-of-contents__link toc-highlight">Experiment Manager</a></li><li><a href="#notebook-sessions-manager" class="table-of-contents__link toc-highlight">Notebook Sessions Manager</a></li><li><a href="#environment-manager" class="table-of-contents__link toc-highlight">Environment Manager</a></li><li><a href="#model-registry" class="table-of-contents__link toc-highlight">Model Registry</a></li><li><a href="#model-serving-manager" class="table-of-contents__link toc-highlight">Model Serving Manager</a></li><li><a href="#compute-cluster-manager" class="table-of-contents__link toc-highlight">Compute Cluster Manager</a></li><li><a href="#dataset-manager" class="table-of-contents__link toc-highlight">Dataset Manager</a></li><li><a href="#userteam-permissions-manager" class="table-of-contents__link toc-highlight">User/team permissions manager</a></li><li><a href="#metadata-manager" 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