| <!doctype html><html lang=en class=no-js><head><meta charset=utf-8><meta name=viewport content="width=device-width,initial-scale=1,shrink-to-fit=no"><meta name=generator content="Hugo 0.102.3"><meta name=robots content="index, follow"><link rel="shortcut icon" href=/favicons/favicon.ico><link rel=apple-touch-icon href=/favicons/apple-touch-icon-180x180.png sizes=180x180><link rel=icon type=image/png href=/favicons/favicon-16x16.png sizes=16x16><link rel=icon type=image/png href=/favicons/favicon-32x32.png sizes=32x32><link rel=icon type=image/png href=/favicons/android-36x36.png sizes=36x36><link rel=icon type=image/png href=/favicons/android-48x48.png sizes=48x48><link rel=icon type=image/png href=/favicons/android-72x72.png sizes=72x72><link rel=icon type=image/png href=/favicons/android-96x96.png sizes=96x96><link rel=icon type=image/png href=/favicons/android-144x144.png sizes=144x144><link rel=icon type=image/png href=/favicons/android-192x192.png sizes=192x192><title>HugeGraph-Computer Quick Start | HugeGraph</title><meta name=description content="1 HugeGraph-Computer Overview |
| The HugeGraph-Computer is a distributed graph processing system for HugeGraph (OLAP). It is an implementation of Pregel. …"><meta property="og:title" content="HugeGraph-Computer Quick Start"><meta property="og:description" content="1 HugeGraph-Computer Overview The HugeGraph-Computer is a distributed graph processing system for HugeGraph (OLAP). It is an implementation of Pregel. It runs on Kubernetes framework. |
| Features Support distributed MPP graph computing, and integrates with HugeGraph as graph input/output storage. Based on BSP(Bulk Synchronous Parallel) model, an algorithm performs computing through multiple parallel iterations, every iteration is a superstep. Auto memory management. The framework will never be OOM(Out of Memory) since it will split some data to disk if it doesn’t have enough memory to hold all the data."><meta property="og:type" content="article"><meta property="og:url" content="/docs/quickstart/hugegraph-computer/"><meta property="article:section" content="docs"><meta property="article:modified_time" content="2024-01-01T00:38:52+08:00"><meta property="og:site_name" content="HugeGraph"><meta itemprop=name content="HugeGraph-Computer Quick Start"><meta itemprop=description content="1 HugeGraph-Computer Overview The HugeGraph-Computer is a distributed graph processing system for HugeGraph (OLAP). It is an implementation of Pregel. It runs on Kubernetes framework. |
| Features Support distributed MPP graph computing, and integrates with HugeGraph as graph input/output storage. Based on BSP(Bulk Synchronous Parallel) model, an algorithm performs computing through multiple parallel iterations, every iteration is a superstep. Auto memory management. The framework will never be OOM(Out of Memory) since it will split some data to disk if it doesn’t have enough memory to hold all the data."><meta itemprop=dateModified content="2024-01-01T00:38:52+08:00"><meta itemprop=wordCount content="727"><meta itemprop=keywords content><meta name=twitter:card content="summary"><meta name=twitter:title content="HugeGraph-Computer Quick Start"><meta name=twitter:description content="1 HugeGraph-Computer Overview The HugeGraph-Computer is a distributed graph processing system for HugeGraph (OLAP). It is an implementation of Pregel. It runs on Kubernetes framework. |
| Features Support distributed MPP graph computing, and integrates with HugeGraph as graph input/output storage. Based on BSP(Bulk Synchronous Parallel) model, an algorithm performs computing through multiple parallel iterations, every iteration is a superstep. Auto memory management. The framework will never be OOM(Out of Memory) since it will split some data to disk if it doesn’t have enough memory to hold all the data."><link rel=preload href=/scss/main.min.14ea575cb35d93d46ff8681b2334f40fd46243c100c5c39f5a841b931fae2d40.css as=style><link href=/scss/main.min.14ea575cb35d93d46ff8681b2334f40fd46243c100c5c39f5a841b931fae2d40.css rel=stylesheet integrity><script src=https://code.jquery.com/jquery-3.5.1.min.js integrity="sha256-9/aliU8dGd2tb6OSsuzixeV4y/faTqgFtohetphbbj0=" crossorigin=anonymous></script> |
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HugeGraph-Server</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsquickstarthugegraph-loader-li><a href=/docs/quickstart/hugegraph-loader/ title="HugeGraph-Loader Quick Start" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsquickstarthugegraph-loader><span>Load data with HugeGraph-Loader</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsquickstarthugegraph-hubble-li><a href=/docs/quickstart/hugegraph-hubble/ title="HugeGraph-Hubble Quick Start" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsquickstarthugegraph-hubble><span>Visual with HugeGraph-Hubble</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsquickstarthugegraph-client-li><a href=/docs/quickstart/hugegraph-client/ title="HugeGraph-Client Quick Start" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsquickstarthugegraph-client><span>Develop with HugeGraph-Client</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsquickstarthugegraph-ai-li><a href=/docs/quickstart/hugegraph-ai/ title="HugeGraph-AI Quick Start" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsquickstarthugegraph-ai><span>Explore with HugeGraph-AI</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsquickstarthugegraph-tools-li><a href=/docs/quickstart/hugegraph-tools/ title="HugeGraph-Tools Quick Start" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsquickstarthugegraph-tools><span>Manage with HugeGraph-Tools</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsquickstarthugegraph-computer-li><a href=/docs/quickstart/hugegraph-computer/ title="HugeGraph-Computer Quick Start" class="align-left pl-0 active td-sidebar-link td-sidebar-link__page" id=m-docsquickstarthugegraph-computer><span class=td-sidebar-nav-active-item>Analysis with HugeGraph-Computer</span></a></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child" id=m-docsconfig-li><a href=/docs/config/ class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-docsconfig><span>Config</span></a><ul class="ul-2 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsconfigconfig-guide-li><a href=/docs/config/config-guide/ title="HugeGraph configuration" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsconfigconfig-guide><span>Config Guide</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsconfigconfig-option-li><a href=/docs/config/config-option/ title="HugeGraph Config Options" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsconfigconfig-option><span>Config Options</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsconfigconfig-authentication-li><a href=/docs/config/config-authentication/ title="Built-in User Authentication and Authorization Configuration and Usage in HugeGraph" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsconfigconfig-authentication><span>Config Authentication</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsconfigconfig-https-li><a href=/docs/config/config-https/ title="Configuring HugeGraphServer to Use HTTPS Protocol" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsconfigconfig-https><span>Config HTTPS</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsconfigconfig-computer-li><a href=/docs/config/config-computer/ title="HugeGraph-Computer Config" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsconfigconfig-computer><span>Config Computer</span></a></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child" id=m-docsclients-li><a href=/docs/clients/ class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-docsclients><span>API</span></a><ul class="ul-2 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child" id=m-docsclientsrestful-api-li><a href=/docs/clients/restful-api/ title="HugeGraph RESTful API" class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-docsclientsrestful-api><span>RESTful API</span></a><ul class="ul-3 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsclientsrestful-apischema-li><a href=/docs/clients/restful-api/schema/ title="Schema API" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsclientsrestful-apischema><span>Schema</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsclientsrestful-apipropertykey-li><a href=/docs/clients/restful-api/propertykey/ title="PropertyKey API" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsclientsrestful-apipropertykey><span>PropertyKey</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsclientsrestful-apivertexlabel-li><a href=/docs/clients/restful-api/vertexlabel/ title="VertexLabel API" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsclientsrestful-apivertexlabel><span>VertexLabel</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsclientsrestful-apiedgelabel-li><a href=/docs/clients/restful-api/edgelabel/ title="EdgeLabel API" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsclientsrestful-apiedgelabel><span>EdgeLabel</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsclientsrestful-apiindexlabel-li><a href=/docs/clients/restful-api/indexlabel/ title="IndexLabel API" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsclientsrestful-apiindexlabel><span>IndexLabel</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsclientsrestful-apirebuild-li><a href=/docs/clients/restful-api/rebuild/ title="Rebuild API" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsclientsrestful-apirebuild><span>Rebuild</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsclientsrestful-apivertex-li><a href=/docs/clients/restful-api/vertex/ title="Vertex API" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsclientsrestful-apivertex><span>Vertex</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsclientsrestful-apiedge-li><a href=/docs/clients/restful-api/edge/ title="Edge API" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsclientsrestful-apiedge><span>Edge</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsclientsrestful-apitraverser-li><a href=/docs/clients/restful-api/traverser/ title="Traverser API" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsclientsrestful-apitraverser><span>Traverser</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsclientsrestful-apirank-li><a href=/docs/clients/restful-api/rank/ title="Rank API" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsclientsrestful-apirank><span>Rank</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsclientsrestful-apivariable-li><a href=/docs/clients/restful-api/variable/ title="Variable API" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsclientsrestful-apivariable><span>Variable</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsclientsrestful-apigraphs-li><a href=/docs/clients/restful-api/graphs/ title="Graphs API" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsclientsrestful-apigraphs><span>Graphs</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsclientsrestful-apitask-li><a href=/docs/clients/restful-api/task/ title="Task API" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsclientsrestful-apitask><span>Task</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsclientsrestful-apigremlin-li><a href=/docs/clients/restful-api/gremlin/ title="Gremlin API" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsclientsrestful-apigremlin><span>Gremlin</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsclientsrestful-apicypher-li><a href=/docs/clients/restful-api/cypher/ title="Cypher API" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsclientsrestful-apicypher><span>Cypher</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsclientsrestful-apiauth-li><a href=/docs/clients/restful-api/auth/ title="Authentication API" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsclientsrestful-apiauth><span>Authentication</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsclientsrestful-apimetrics-li><a href=/docs/clients/restful-api/metrics/ title="Metrics API" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsclientsrestful-apimetrics><span>Metrics</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsclientsrestful-apiother-li><a href=/docs/clients/restful-api/other/ title="Other API" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsclientsrestful-apiother><span>Other</span></a></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsclientshugegraph-client-li><a href=/docs/clients/hugegraph-client/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsclientshugegraph-client><span>HugeGraph Java Client</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsclientsgremlin-console-li><a href=/docs/clients/gremlin-console/ title=Gremlin-Console class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsclientsgremlin-console><span>Gremlin Console</span></a></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child" id=m-docsguides-li><a href=/docs/guides/ class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-docsguides><span>GUIDES</span></a><ul class="ul-2 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsguidesarchitectural-li><a href=/docs/guides/architectural/ title="HugeGraph Architecture Overview" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsguidesarchitectural><span>Architecture Overview</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsguidesdesgin-concept-li><a href=/docs/guides/desgin-concept/ title="HugeGraph Design Concepts" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsguidesdesgin-concept><span>Design Concepts</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsguidescustom-plugin-li><a href=/docs/guides/custom-plugin/ title="HugeGraph Plugin mechanism and plug-in extension process" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsguidescustom-plugin><span>HugeGraph Plugin</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsguidesbackup-restore-li><a href=/docs/guides/backup-restore/ title="Backup and Restore" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsguidesbackup-restore><span>Backup Restore</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsguidesfaq-li><a href=/docs/guides/faq/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsguidesfaq><span>FAQ</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsguidessecurity-li><a href=/docs/guides/security/ title="Security Report" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsguidessecurity><span>Security</span></a></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child" id=m-docslanguage-li><a href=/docs/language/ class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-docslanguage><span>QUERY LANGUAGE</span></a><ul class="ul-2 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docslanguagehugegraph-gremlin-li><a href=/docs/language/hugegraph-gremlin/ title="HugeGraph Gremlin" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docslanguagehugegraph-gremlin><span>Gremlin Query Language</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docslanguagehugegraph-example-li><a href=/docs/language/hugegraph-example/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docslanguagehugegraph-example><span>HugeGraph Examples</span></a></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child" id=m-docsperformance-li><a href=/docs/performance/ class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-docsperformance><span>PERFORMANCE</span></a><ul class="ul-2 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsperformancehugegraph-benchmark-056-li><a href=/docs/performance/hugegraph-benchmark-0.5.6/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsperformancehugegraph-benchmark-056><span>HugeGraph BenchMark Performance</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child" id=m-docsperformanceapi-preformance-li><a href=/docs/performance/api-preformance/ class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-docsperformanceapi-preformance><span>HugeGraph-API Performance</span></a><ul class="ul-3 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsperformanceapi-preformancehugegraph-api-056-rocksdb-li><a href=/docs/performance/api-preformance/hugegraph-api-0.5.6-rocksdb/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsperformanceapi-preformancehugegraph-api-056-rocksdb><span>v0.5.6 Stand-alone(RocksDB)</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsperformanceapi-preformancehugegraph-api-056-cassandra-li><a href=/docs/performance/api-preformance/hugegraph-api-0.5.6-cassandra/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsperformanceapi-preformancehugegraph-api-056-cassandra><span>v0.5.6 Cluster(Cassandra)</span></a></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsperformancehugegraph-loader-performance-li><a href=/docs/performance/hugegraph-loader-performance/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsperformancehugegraph-loader-performance><span>HugeGraph-Loader Performance</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docsperformancehugegraph-benchmark-044-li><a href=/docs/performance/hugegraph-benchmark-0.4.4/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsperformancehugegraph-benchmark-044><span></span></a></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child" id=m-docscontribution-guidelines-li><a href=/docs/contribution-guidelines/ class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-docscontribution-guidelines><span>Contribution Guidelines</span></a><ul class="ul-2 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docscontribution-guidelinescontribute-li><a href=/docs/contribution-guidelines/contribute/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docscontribution-guidelinescontribute><span>How to Contribute to HugeGraph</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docscontribution-guidelinessubscribe-li><a href=/docs/contribution-guidelines/subscribe/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docscontribution-guidelinessubscribe><span>Subscribe Mailing Lists</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docscontribution-guidelinesvalidate-release-li><a href=/docs/contribution-guidelines/validate-release/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docscontribution-guidelinesvalidate-release><span>Validate Apache Release</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docscontribution-guidelineshugegraph-server-idea-setup-li><a href=/docs/contribution-guidelines/hugegraph-server-idea-setup/ title="Setup Server in IDEA (Dev)" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docscontribution-guidelineshugegraph-server-idea-setup><span>Setup Server in IDEA</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docscontribution-guidelinescommitter-guidelines-li><a href=/docs/contribution-guidelines/committer-guidelines/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docscontribution-guidelinescommitter-guidelines><span>Apache HugeGraph Committer Guide</span></a></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child" id=m-docschangelog-li><a href=/docs/changelog/ class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-docschangelog><span>CHANGELOGS</span></a><ul class="ul-2 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docschangeloghugegraph-100-release-notes-li><a href=/docs/changelog/hugegraph-1.0.0-release-notes/ title="HugeGraph 1.0.0 Release Notes" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docschangeloghugegraph-100-release-notes><span>Release-1.0.0</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docschangeloghugegraph-120-release-notes-li><a href=/docs/changelog/hugegraph-1.2.0-release-notes/ title="HugeGraph 1.2.0 Release Notes" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docschangeloghugegraph-120-release-notes><span>Release-1.2.0</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docschangeloghugegraph-130-release-notes-li><a href=/docs/changelog/hugegraph-1.3.0-release-notes/ title="HugeGraph 1.3.0 Release Notes" class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docschangeloghugegraph-130-release-notes><span>Release-1.3.0</span></a></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docscla-li><a href=/docs/cla/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docscla><span></span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docssummary-li><a href=/docs/summary/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docssummary><span></span></a></li></ul></li></ul></nav></div></aside><aside class="d-none d-xl-block col-xl-2 td-sidebar-toc d-print-none"><div class="td-page-meta ml-2 pb-1 pt-2 mb-0"><a href=https://github.com/apache/incubator-hugegraph-doc/tree/master/content/en/docs/quickstart/hugegraph-computer.md class=td-page-meta--view target=_blank rel=noopener><i class="fa fa-file-alt fa-fw"></i> View page source</a> |
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| <a id=print href=/docs/quickstart/_print/><i class="fa fa-print fa-fw"></i> Print entire section</a></div><div class=td-toc><nav id=TableOfContents><ul><li><a href=#1-hugegraph-computer-overview>1 HugeGraph-Computer Overview</a><ul><li><a href=#features>Features</a></li></ul></li><li><a href=#2-dependency-for-buildingrunning>2 Dependency for Building/Running</a><ul><li><a href=#21-install-java-11-jdk-11>2.1 Install Java 11 (JDK 11)</a></li></ul></li><li><a href=#3-get-started>3 Get Started</a><ul><li><a href=#31-run-pagerank-algorithm-locally>3.1 Run PageRank algorithm locally</a></li><li><a href=#32-run-pagerank-algorithm-in-kubernetes>3.2 Run PageRank algorithm in Kubernetes</a></li></ul></li><li><a href=#4-built-in-algorithms-document>4 Built-In algorithms document</a><ul><li><a href=#41-supported-algorithms-list>4.1 Supported algorithms list:</a></li><li><a href=#42-algorithm-describe>4.2 Algorithm describe</a></li></ul></li><li><a href=#5-algorithm-development-guide>5 Algorithm development guide</a></li><li><a href=#6-note>6 Note</a></li></ul></nav></div></aside><main class="col-12 col-md-9 col-xl-8 pl-md-5" role=main><nav aria-label=breadcrumb class=td-breadcrumbs><ol class=breadcrumb><li class=breadcrumb-item><a href=/docs/>Documentation</a></li><li class=breadcrumb-item><a href=/docs/quickstart/>Quick Start</a></li><li class="breadcrumb-item active" aria-current=page><a href=/docs/quickstart/hugegraph-computer/>Analysis with HugeGraph-Computer</a></li></ol></nav><div class=td-content><h1>HugeGraph-Computer Quick Start</h1><header class=article-meta></header><h2 id=1-hugegraph-computer-overview>1 HugeGraph-Computer Overview</h2><p>The <a href=https://github.com/apache/incubator-hugegraph-computer><code>HugeGraph-Computer</code></a> is a distributed graph processing system for HugeGraph (OLAP). It is an implementation of <a href=https://kowshik.github.io/JPregel/pregel_paper.pdf>Pregel</a>. It runs on Kubernetes framework.</p><h3 id=features>Features</h3><ul><li>Support distributed MPP graph computing, and integrates with HugeGraph as graph input/output storage.</li><li>Based on BSP(Bulk Synchronous Parallel) model, an algorithm performs computing through multiple parallel iterations, every iteration is a superstep.</li><li>Auto memory management. The framework will never be OOM(Out of Memory) since it will split some data to disk if it doesn’t have enough memory to hold all the data.</li><li>The part of edges or the messages of super node can be in memory, so you will never lose it.</li><li>You can load the data from HDFS or HugeGraph, or any other system.</li><li>You can output the results to HDFS or HugeGraph, or any other system.</li><li>Easy to develop a new algorithm. You just need to focus on a vertex only processing just like as in a single server, without worrying about message transfer and memory/storage management.</li></ul><h2 id=2-dependency-for-buildingrunning>2 Dependency for Building/Running</h2><h3 id=21-install-java-11-jdk-11>2.1 Install Java 11 (JDK 11)</h3><p><strong>Must</strong> use ≥ <code>Java 11</code> to run <code>Computer</code>, and configure by yourself.</p><p><strong>Be sure to execute the <code>java -version</code> command to check the jdk version before reading</strong></p><h2 id=3-get-started>3 Get Started</h2><h3 id=31-run-pagerank-algorithm-locally>3.1 Run PageRank algorithm locally</h3><blockquote><p>To run algorithm with HugeGraph-Computer, you need to install Java 11 or later versions.</p><p>You also need to deploy HugeGraph-Server and <a href=https://etcd.io/docs/v3.5/quickstart/>Etcd</a>.</p></blockquote><p>There are two ways to get HugeGraph-Computer:</p><ul><li>Download the compiled tarball</li><li>Clone source code then compile and package</li></ul><h4 id=311-download-the-compiled-archive>3.1.1 Download the compiled archive</h4><p>Download the latest version of the HugeGraph-Computer release package:</p><div class=highlight><pre tabindex=0 style=background-color:#f8f8f8;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-bash data-lang=bash><span style=display:flex><span>wget https://downloads.apache.org/incubator/hugegraph/<span style=color:#4e9a06>${</span><span style=color:#000>version</span><span style=color:#4e9a06>}</span>/apache-hugegraph-computer-incubating-<span style=color:#4e9a06>${</span><span style=color:#000>version</span><span style=color:#4e9a06>}</span>.tar.gz |
| </span></span><span style=display:flex><span>tar zxvf apache-hugegraph-computer-incubating-<span style=color:#4e9a06>${</span><span style=color:#000>version</span><span style=color:#4e9a06>}</span>.tar.gz -C hugegraph-computer |
| </span></span></code></pre></div><h4 id=312-clone-source-code-to-compile-and-package>3.1.2 Clone source code to compile and package</h4><p>Clone the latest version of HugeGraph-Computer source package:</p><div class=highlight><pre tabindex=0 style=background-color:#f8f8f8;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-bash data-lang=bash><span style=display:flex><span>$ git clone https://github.com/apache/hugegraph-computer.git |
| </span></span></code></pre></div><p>Compile and generate tar package:</p><div class=highlight><pre tabindex=0 style=background-color:#f8f8f8;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-bash data-lang=bash><span style=display:flex><span><span style=color:#204a87>cd</span> hugegraph-computer |
| </span></span><span style=display:flex><span>mvn clean package -DskipTests |
| </span></span></code></pre></div><h4 id=313-start-master-node>3.1.3 Start master node</h4><blockquote><p>You can use <code>-c</code> parameter specify the configuration file, more computer config please see:<a href=/docs/config/config-computer#computer-config-options>Computer Config Options</a></p></blockquote><div class=highlight><pre tabindex=0 style=background-color:#f8f8f8;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-bash data-lang=bash><span style=display:flex><span><span style=color:#204a87>cd</span> hugegraph-computer |
| </span></span><span style=display:flex><span>bin/start-computer.sh -d <span style=color:#204a87>local</span> -r master |
| </span></span></code></pre></div><h4 id=314-start-worker-node>3.1.4 Start worker node</h4><div class=highlight><pre tabindex=0 style=background-color:#f8f8f8;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-bash data-lang=bash><span style=display:flex><span>bin/start-computer.sh -d <span style=color:#204a87>local</span> -r worker |
| </span></span></code></pre></div><h4 id=315-query-algorithm-results>3.1.5 Query algorithm results</h4><p>3.1.5.1 Enable <code>OLAP</code> index query for server</p><p>If OLAP index is not enabled, it needs to enable, more reference: <a href=/docs/clients/restful-api/graphs/#634-modify-graphs-read-mode-this-operation-requires-administrator-privileges>modify-graphs-read-mode</a></p><div class=highlight><pre tabindex=0 style=background-color:#f8f8f8;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-http data-lang=http><span style=display:flex><span><span style=color:#a40000>PUT http://localhost:8080/graphs/hugegraph/graph_read_mode |
| </span></span></span><span style=display:flex><span><span style=color:#a40000> |
| </span></span></span><span style=display:flex><span><span style=color:#a40000>"ALL" |
| </span></span></span></code></pre></div><p>3.1.5.2 Query <code>page_rank</code> property value:</p><div class=highlight><pre tabindex=0 style=background-color:#f8f8f8;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-bash data-lang=bash><span style=display:flex><span>curl <span style=color:#4e9a06>"http://localhost:8080/graphs/hugegraph/graph/vertices?page&limit=3"</span> <span style=color:#000;font-weight:700>|</span> gunzip |
| </span></span></code></pre></div><h3 id=32-run-pagerank-algorithm-in-kubernetes>3.2 Run PageRank algorithm in Kubernetes</h3><blockquote><p>To run algorithm with HugeGraph-Computer you need to deploy HugeGraph-Server first</p></blockquote><h4 id=321-install-hugegraph-computer-crd>3.2.1 Install HugeGraph-Computer CRD</h4><div class=highlight><pre tabindex=0 style=background-color:#f8f8f8;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-bash data-lang=bash><span style=display:flex><span><span style=color:#8f5902;font-style:italic># Kubernetes version >= v1.16</span> |
| </span></span><span style=display:flex><span>kubectl apply -f https://raw.githubusercontent.com/apache/hugegraph-computer/master/computer-k8s-operator/manifest/hugegraph-computer-crd.v1.yaml |
| </span></span><span style=display:flex><span> |
| </span></span><span style=display:flex><span><span style=color:#8f5902;font-style:italic># Kubernetes version < v1.16</span> |
| </span></span><span style=display:flex><span>kubectl apply -f https://raw.githubusercontent.com/apache/hugegraph-computer/master/computer-k8s-operator/manifest/hugegraph-computer-crd.v1beta1.yaml |
| </span></span></code></pre></div><h4 id=322-show-crd>3.2.2 Show CRD</h4><div class=highlight><pre tabindex=0 style=background-color:#f8f8f8;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-bash data-lang=bash><span style=display:flex><span>kubectl get crd |
| </span></span><span style=display:flex><span> |
| </span></span><span style=display:flex><span>NAME CREATED AT |
| </span></span><span style=display:flex><span>hugegraphcomputerjobs.hugegraph.apache.org 2021-09-16T08:01:08Z |
| </span></span></code></pre></div><h4 id=323-install-hugegraph-computer-operatoretcd-server>3.2.3 Install hugegraph-computer-operator&etcd-server</h4><div class=highlight><pre tabindex=0 style=background-color:#f8f8f8;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-bash data-lang=bash><span style=display:flex><span>kubectl apply -f https://raw.githubusercontent.com/apache/hugegraph-computer/master/computer-k8s-operator/manifest/hugegraph-computer-operator.yaml |
| </span></span></code></pre></div><h4 id=324-wait-for-hugegraph-computer-operatoretcd-server-deployment-to-complete>3.2.4 Wait for hugegraph-computer-operator&etcd-server deployment to complete</h4><div class=highlight><pre tabindex=0 style=background-color:#f8f8f8;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-bash data-lang=bash><span style=display:flex><span>kubectl get pod -n hugegraph-computer-operator-system |
| </span></span><span style=display:flex><span> |
| </span></span><span style=display:flex><span>NAME READY STATUS RESTARTS AGE |
| </span></span><span style=display:flex><span>hugegraph-computer-operator-controller-manager-58c5545949-jqvzl 1/1 Running <span style=color:#0000cf;font-weight:700>0</span> 15h |
| </span></span><span style=display:flex><span>hugegraph-computer-operator-etcd-28lm67jxk5 1/1 Running <span style=color:#0000cf;font-weight:700>0</span> 15h |
| </span></span></code></pre></div><h4 id=325-submit-job>3.2.5 Submit job</h4><blockquote><p>More computer crd please see: <a href=/docs/config/config-computer#hugegraph-computer-crd>Computer CRD</a></p><p>More computer config please see: <a href=/docs/config/config-computer#computer-config-options>Computer Config Options</a></p></blockquote><div class=highlight><pre tabindex=0 style=background-color:#f8f8f8;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-yaml data-lang=yaml><span style=display:flex><span><span style=color:#000>cat <<EOF | kubectl apply --filename -</span><span style=color:#f8f8f8;text-decoration:underline> |
| </span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline></span><span style=color:#204a87;font-weight:700>apiVersion</span><span style=color:#000;font-weight:700>:</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#000>hugegraph.apache.org/v1</span><span style=color:#f8f8f8;text-decoration:underline> |
| </span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline></span><span style=color:#204a87;font-weight:700>kind</span><span style=color:#000;font-weight:700>:</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#000>HugeGraphComputerJob</span><span style=color:#f8f8f8;text-decoration:underline> |
| </span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline></span><span style=color:#204a87;font-weight:700>metadata</span><span style=color:#000;font-weight:700>:</span><span style=color:#f8f8f8;text-decoration:underline> |
| </span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>namespace</span><span style=color:#000;font-weight:700>:</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#000>hugegraph-computer-operator-system</span><span style=color:#f8f8f8;text-decoration:underline> |
| </span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>name</span><span style=color:#000;font-weight:700>:</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#8f5902;font-style:italic>&jobName</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#000>pagerank-sample</span><span style=color:#f8f8f8;text-decoration:underline> |
| </span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline></span><span style=color:#204a87;font-weight:700>spec</span><span style=color:#000;font-weight:700>:</span><span style=color:#f8f8f8;text-decoration:underline> |
| </span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>jobId</span><span style=color:#000;font-weight:700>:</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#8f5902;font-style:italic>*jobName</span><span style=color:#f8f8f8;text-decoration:underline> |
| </span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>algorithmName</span><span style=color:#000;font-weight:700>:</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#000>page_rank</span><span style=color:#f8f8f8;text-decoration:underline> |
| </span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>image</span><span style=color:#000;font-weight:700>:</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#000>hugegraph/hugegraph-computer:latest</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#8f5902;font-style:italic># algorithm image url</span><span style=color:#f8f8f8;text-decoration:underline> |
| </span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>jarFile</span><span style=color:#000;font-weight:700>:</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#000>/hugegraph/hugegraph-computer/algorithm/builtin-algorithm.jar</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#8f5902;font-style:italic># algorithm jar path</span><span style=color:#f8f8f8;text-decoration:underline> |
| </span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>pullPolicy</span><span style=color:#000;font-weight:700>:</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#000>Always</span><span style=color:#f8f8f8;text-decoration:underline> |
| </span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>workerCpu</span><span style=color:#000;font-weight:700>:</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#4e9a06>"4"</span><span style=color:#f8f8f8;text-decoration:underline> |
| </span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>workerMemory</span><span style=color:#000;font-weight:700>:</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#4e9a06>"4Gi"</span><span style=color:#f8f8f8;text-decoration:underline> |
| </span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>workerInstances</span><span style=color:#000;font-weight:700>:</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#0000cf;font-weight:700>5</span><span style=color:#f8f8f8;text-decoration:underline> |
| </span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>computerConf</span><span style=color:#000;font-weight:700>:</span><span style=color:#f8f8f8;text-decoration:underline> |
| </span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>job.partitions_count</span><span style=color:#000;font-weight:700>:</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#4e9a06>"20"</span><span style=color:#f8f8f8;text-decoration:underline> |
| </span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>algorithm.params_class</span><span style=color:#000;font-weight:700>:</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#000>org.apache.hugegraph.computer.algorithm.centrality.pagerank.PageRankParams</span><span style=color:#f8f8f8;text-decoration:underline> |
| </span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>hugegraph.url</span><span style=color:#000;font-weight:700>:</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#000>http://${hugegraph-server-host}:${hugegraph-server-port}</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#8f5902;font-style:italic># hugegraph server url</span><span style=color:#f8f8f8;text-decoration:underline> |
| </span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>hugegraph.name</span><span style=color:#000;font-weight:700>:</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#000>hugegraph</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#8f5902;font-style:italic># hugegraph graph name</span><span style=color:#f8f8f8;text-decoration:underline> |
| </span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline></span><span style=color:#000>EOF</span><span style=color:#f8f8f8;text-decoration:underline> |
| </span></span></span></code></pre></div><h4 id=326-show-job>3.2.6 Show job</h4><div class=highlight><pre tabindex=0 style=background-color:#f8f8f8;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-bash data-lang=bash><span style=display:flex><span>kubectl get hcjob/pagerank-sample -n hugegraph-computer-operator-system |
| </span></span><span style=display:flex><span> |
| </span></span><span style=display:flex><span>NAME JOBID JOBSTATUS |
| </span></span><span style=display:flex><span>pagerank-sample pagerank-sample RUNNING |
| </span></span></code></pre></div><h4 id=327-show-log-of-nodes>3.2.7 Show log of nodes</h4><div class=highlight><pre tabindex=0 style=background-color:#f8f8f8;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-bash data-lang=bash><span style=display:flex><span><span style=color:#8f5902;font-style:italic># Show the master log</span> |
| </span></span><span style=display:flex><span>kubectl logs -l <span style=color:#000>component</span><span style=color:#ce5c00;font-weight:700>=</span>pagerank-sample-master -n hugegraph-computer-operator-system |
| </span></span><span style=display:flex><span> |
| </span></span><span style=display:flex><span><span style=color:#8f5902;font-style:italic># Show the worker log</span> |
| </span></span><span style=display:flex><span>kubectl logs -l <span style=color:#000>component</span><span style=color:#ce5c00;font-weight:700>=</span>pagerank-sample-worker -n hugegraph-computer-operator-system |
| </span></span><span style=display:flex><span> |
| </span></span><span style=display:flex><span><span style=color:#8f5902;font-style:italic># Show diagnostic log of a job</span> |
| </span></span><span style=display:flex><span><span style=color:#8f5902;font-style:italic># NOTE: diagnostic log exist only when the job fails, and it will only be saved for one hour.</span> |
| </span></span><span style=display:flex><span>kubectl get event --field-selector <span style=color:#000>reason</span><span style=color:#ce5c00;font-weight:700>=</span>ComputerJobFailed --field-selector involvedObject.name<span style=color:#ce5c00;font-weight:700>=</span>pagerank-sample -n hugegraph-computer-operator-system |
| </span></span></code></pre></div><h4 id=328-show-success-event-of-a-job>3.2.8 Show success event of a job</h4><blockquote><p>NOTE: it will only be saved for one hour</p></blockquote><div class=highlight><pre tabindex=0 style=background-color:#f8f8f8;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-bash data-lang=bash><span style=display:flex><span>kubectl get event --field-selector <span style=color:#000>reason</span><span style=color:#ce5c00;font-weight:700>=</span>ComputerJobSucceed --field-selector involvedObject.name<span style=color:#ce5c00;font-weight:700>=</span>pagerank-sample -n hugegraph-computer-operator-system |
| </span></span></code></pre></div><h4 id=329-query-algorithm-results>3.2.9 Query algorithm results</h4><p>If the output to <code>Hugegraph-Server</code> is consistent with Locally, if output to <code>HDFS</code>, please check the result file in the directory of <code>/hugegraph-computer/results/{jobId}</code> directory.</p><h2 id=4-built-in-algorithms-document>4 Built-In algorithms document</h2><h3 id=41-supported-algorithms-list>4.1 Supported algorithms list:</h3><h6 id=centrality-algorithm>Centrality Algorithm:</h6><ul><li>PageRank</li><li>BetweennessCentrality</li><li>ClosenessCentrality</li><li>DegreeCentrality</li></ul><h6 id=community-algorithm>Community Algorithm:</h6><ul><li>ClusteringCoefficient</li><li>Kcore</li><li>Lpa</li><li>TriangleCount</li><li>Wcc</li></ul><h6 id=path-algorithm>Path Algorithm:</h6><ul><li>RingsDetection</li><li>RingsDetectionWithFilter</li></ul><p>More algorithms please see: <a href=https://github.com/apache/hugegraph-computer/tree/master/computer-algorithm/src/main/java/org/apache/hugegraph/computer/algorithm>Built-In algorithms</a></p><h3 id=42-algorithm-describe>4.2 Algorithm describe</h3><p>TODO</p><h2 id=5-algorithm-development-guide>5 Algorithm development guide</h2><p>TODO</p><h2 id=6-note>6 Note</h2><ul><li>If some classes under computer-k8s cannot be found, you need to execute <code>mvn compile</code> in advance to generate corresponding classes.</li></ul><style>.feedback--answer{display:inline-block}.feedback--answer-no{margin-left:1em}.feedback--response{display:none;margin-top:1em}.feedback--response__visible{display:block}</style><script>const 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