{"id":2104,"date":"2017-12-07T10:37:02","date_gmt":"2017-12-07T10:37:02","guid":{"rendered":"http:\/\/www.scmgalaxy.com\/tutorials\/?p=2104"},"modified":"2021-02-27T09:29:16","modified_gmt":"2021-02-27T09:29:16","slug":"advice-on-our-hudson-setup-how-to-poll-dependencies","status":"publish","type":"post","link":"https:\/\/www.scmgalaxy.com\/tutorials\/advice-on-our-hudson-setup-how-to-poll-dependencies\/","title":{"rendered":"Advice on our Hudson setup \/ How to Poll Dependencies"},"content":{"rendered":"<p><strong>scmuser created the topic: Advice on our Hudson setup \/ How to poll dependenc<\/strong><br \/>\nAdvice on our Hudson setup \/ How to poll dependencies<\/p>\n<p>Hi, I&#8217;m looking for some advice on whether our Hudson setup is<br \/>\nsensible, and I&#8217;m also wondering how to poll instead of build<br \/>\n&#8220;dependency-triggered&#8221; jobs.<\/p>\n<p>We have a project that is broken up into 3 components. As is typical<br \/>\nwith git, each component is a standalone piece that lives in its own<br \/>\ngit repository.<\/p>\n<p>The Hudson Git Plugin takes multiple repository URLs but blends them<br \/>\ntogether, so we couldn&#8217;t just keep everything in a single job (nor do<br \/>\nI think we really want that), and instead we created one job per<br \/>\nrepository.<\/p>\n<p>Dependency-wise, one project (C) depends on the other two (A, B).<br \/>\nBrief Googling led us to the Join Plugin. So now we have a 4th &#8220;base&#8221;<br \/>\njob (D) that is empty and simple triggers A, B to build, then has a<br \/>\nJoin Trigger for C. D builds every hour.<\/p>\n<p>Now to the question: our setup produces a lot of unnecessary builds.<br \/>\nIs there a way to add polling into the chain, such that if an upstream<br \/>\npoll detects no changes, downstream polls still take place? It seems<br \/>\nthat currently there are two problems standing in the way of this:<\/p>\n<p>(1) Downstream jobs can only be built, not polled.<\/p>\n<p>(2) Only post-build triggers exist, so an upstream project (like A or<br \/>\nB) must actually go through a build for C to build, whereas what we&#8217;d<br \/>\nwant here is a post-poll trigger.<\/p>\n<p>Thanks in advance for any tips<\/p>\n","protected":false},"excerpt":{"rendered":"<p>scmuser created the topic: Advice on our Hudson setup \/ How to poll dependenc Advice on our Hudson setup \/ [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_joinchat":[],"footnotes":""},"categories":[428],"tags":[429],"class_list":["post-2104","post","type-post","status-publish","format-standard","hentry","category-jenkins-build-management-tools","tag-hudson"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Advice on our Hudson setup \/ How to Poll Dependencies - scmGalaxy<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.scmgalaxy.com\/tutorials\/advice-on-our-hudson-setup-how-to-poll-dependencies\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Advice on our Hudson setup \/ How to Poll Dependencies - scmGalaxy\" \/>\n<meta property=\"og:description\" content=\"scmuser created the topic: Advice on our Hudson setup \/ How to poll dependenc Advice on our Hudson setup \/ [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.scmgalaxy.com\/tutorials\/advice-on-our-hudson-setup-how-to-poll-dependencies\/\" \/>\n<meta property=\"og:site_name\" content=\"scmGalaxy\" \/>\n<meta property=\"article:published_time\" content=\"2017-12-07T10:37:02+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2021-02-27T09:29:16+00:00\" \/>\n<meta name=\"author\" content=\"scmgalaxy K\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"scmgalaxy K\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.scmgalaxy.com\\\/tutorials\\\/advice-on-our-hudson-setup-how-to-poll-dependencies\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.scmgalaxy.com\\\/tutorials\\\/advice-on-our-hudson-setup-how-to-poll-dependencies\\\/\"},\"author\":{\"name\":\"scmgalaxy K\",\"@id\":\"https:\\\/\\\/www.scmgalaxy.com\\\/tutorials\\\/#\\\/schema\\\/person\\\/fc12ad190f540e79460243c81148d102\"},\"headline\":\"Advice on our Hudson setup \\\/ How to Poll Dependencies\",\"datePublished\":\"2017-12-07T10:37:02+00:00\",\"dateModified\":\"2021-02-27T09:29:16+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.scmgalaxy.com\\\/tutorials\\\/advice-on-our-hudson-setup-how-to-poll-dependencies\\\/\"},\"wordCount\":270,\"commentCount\":0,\"keywords\":[\"Hudson\"],\"articleSection\":[\"Jenkins\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.scmgalaxy.com\\\/tutorials\\\/advice-on-our-hudson-setup-how-to-poll-dependencies\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.scmgalaxy.com\\\/tutorials\\\/advice-on-our-hudson-setup-how-to-poll-dependencies\\\/\",\"url\":\"https:\\\/\\\/www.scmgalaxy.com\\\/tutorials\\\/advice-on-our-hudson-setup-how-to-poll-dependencies\\\/\",\"name\":\"Advice on our Hudson setup \\\/ How to Poll Dependencies - scmGalaxy\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.scmgalaxy.com\\\/tutorials\\\/#website\"},\"datePublished\":\"2017-12-07T10:37:02+00:00\",\"dateModified\":\"2021-02-27T09:29:16+00:00\",\"author\":{\"@id\":\"https:\\\/\\\/www.scmgalaxy.com\\\/tutorials\\\/#\\\/schema\\\/person\\\/fc12ad190f540e79460243c81148d102\"},\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.scmgalaxy.com\\\/tutorials\\\/advice-on-our-hudson-setup-how-to-poll-dependencies\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.scmgalaxy.com\\\/tutorials\\\/advice-on-our-hudson-setup-how-to-poll-dependencies\\\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.scmgalaxy.com\\\/tutorials\\\/advice-on-our-hudson-setup-how-to-poll-dependencies\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.scmgalaxy.com\\\/tutorials\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Advice on our Hudson setup \\\/ How to Poll Dependencies\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.scmgalaxy.com\\\/tutorials\\\/#website\",\"url\":\"https:\\\/\\\/www.scmgalaxy.com\\\/tutorials\\\/\",\"name\":\"scmGalaxy\",\"description\":\"A Platform for Software Engineers\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.scmgalaxy.com\\\/tutorials\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/www.scmgalaxy.com\\\/tutorials\\\/#\\\/schema\\\/person\\\/fc12ad190f540e79460243c81148d102\",\"name\":\"scmgalaxy K\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/4b902ea8c77ee0a326c112f29d0edf51b7c3e1cd05c4fb92a810177e9c3f12a9?s=96&d=mm&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/4b902ea8c77ee0a326c112f29d0edf51b7c3e1cd05c4fb92a810177e9c3f12a9?s=96&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/4b902ea8c77ee0a326c112f29d0edf51b7c3e1cd05c4fb92a810177e9c3f12a9?s=96&d=mm&r=g\",\"caption\":\"scmgalaxy K\"},\"sameAs\":[\"http:\\\/\\\/www.DevOpsSchool.com\"],\"url\":\"https:\\\/\\\/www.scmgalaxy.com\\\/tutorials\\\/author\\\/scmgalaxy\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Advice on our Hudson setup \/ How to Poll Dependencies - scmGalaxy","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.scmgalaxy.com\/tutorials\/advice-on-our-hudson-setup-how-to-poll-dependencies\/","og_locale":"en_US","og_type":"article","og_title":"Advice on our Hudson setup \/ How to Poll Dependencies - scmGalaxy","og_description":"scmuser created the topic: Advice on our Hudson setup \/ How to poll dependenc Advice on our Hudson setup \/ [&hellip;]","og_url":"https:\/\/www.scmgalaxy.com\/tutorials\/advice-on-our-hudson-setup-how-to-poll-dependencies\/","og_site_name":"scmGalaxy","article_published_time":"2017-12-07T10:37:02+00:00","article_modified_time":"2021-02-27T09:29:16+00:00","author":"scmgalaxy K","twitter_card":"summary_large_image","twitter_misc":{"Written by":"scmgalaxy K","Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.scmgalaxy.com\/tutorials\/advice-on-our-hudson-setup-how-to-poll-dependencies\/#article","isPartOf":{"@id":"https:\/\/www.scmgalaxy.com\/tutorials\/advice-on-our-hudson-setup-how-to-poll-dependencies\/"},"author":{"name":"scmgalaxy K","@id":"https:\/\/www.scmgalaxy.com\/tutorials\/#\/schema\/person\/fc12ad190f540e79460243c81148d102"},"headline":"Advice on our Hudson setup \/ How to Poll Dependencies","datePublished":"2017-12-07T10:37:02+00:00","dateModified":"2021-02-27T09:29:16+00:00","mainEntityOfPage":{"@id":"https:\/\/www.scmgalaxy.com\/tutorials\/advice-on-our-hudson-setup-how-to-poll-dependencies\/"},"wordCount":270,"commentCount":0,"keywords":["Hudson"],"articleSection":["Jenkins"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/www.scmgalaxy.com\/tutorials\/advice-on-our-hudson-setup-how-to-poll-dependencies\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/www.scmgalaxy.com\/tutorials\/advice-on-our-hudson-setup-how-to-poll-dependencies\/","url":"https:\/\/www.scmgalaxy.com\/tutorials\/advice-on-our-hudson-setup-how-to-poll-dependencies\/","name":"Advice on our Hudson setup \/ How to Poll Dependencies - scmGalaxy","isPartOf":{"@id":"https:\/\/www.scmgalaxy.com\/tutorials\/#website"},"datePublished":"2017-12-07T10:37:02+00:00","dateModified":"2021-02-27T09:29:16+00:00","author":{"@id":"https:\/\/www.scmgalaxy.com\/tutorials\/#\/schema\/person\/fc12ad190f540e79460243c81148d102"},"breadcrumb":{"@id":"https:\/\/www.scmgalaxy.com\/tutorials\/advice-on-our-hudson-setup-how-to-poll-dependencies\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.scmgalaxy.com\/tutorials\/advice-on-our-hudson-setup-how-to-poll-dependencies\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.scmgalaxy.com\/tutorials\/advice-on-our-hudson-setup-how-to-poll-dependencies\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.scmgalaxy.com\/tutorials\/"},{"@type":"ListItem","position":2,"name":"Advice on our Hudson setup \/ How to Poll Dependencies"}]},{"@type":"WebSite","@id":"https:\/\/www.scmgalaxy.com\/tutorials\/#website","url":"https:\/\/www.scmgalaxy.com\/tutorials\/","name":"scmGalaxy","description":"A Platform for Software Engineers","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.scmgalaxy.com\/tutorials\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Person","@id":"https:\/\/www.scmgalaxy.com\/tutorials\/#\/schema\/person\/fc12ad190f540e79460243c81148d102","name":"scmgalaxy K","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/secure.gravatar.com\/avatar\/4b902ea8c77ee0a326c112f29d0edf51b7c3e1cd05c4fb92a810177e9c3f12a9?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/4b902ea8c77ee0a326c112f29d0edf51b7c3e1cd05c4fb92a810177e9c3f12a9?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/4b902ea8c77ee0a326c112f29d0edf51b7c3e1cd05c4fb92a810177e9c3f12a9?s=96&d=mm&r=g","caption":"scmgalaxy K"},"sameAs":["http:\/\/www.DevOpsSchool.com"],"url":"https:\/\/www.scmgalaxy.com\/tutorials\/author\/scmgalaxy\/"}]}},"_links":{"self":[{"href":"https:\/\/www.scmgalaxy.com\/tutorials\/wp-json\/wp\/v2\/posts\/2104","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.scmgalaxy.com\/tutorials\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.scmgalaxy.com\/tutorials\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.scmgalaxy.com\/tutorials\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.scmgalaxy.com\/tutorials\/wp-json\/wp\/v2\/comments?post=2104"}],"version-history":[{"count":1,"href":"https:\/\/www.scmgalaxy.com\/tutorials\/wp-json\/wp\/v2\/posts\/2104\/revisions"}],"predecessor-version":[{"id":2105,"href":"https:\/\/www.scmgalaxy.com\/tutorials\/wp-json\/wp\/v2\/posts\/2104\/revisions\/2105"}],"wp:attachment":[{"href":"https:\/\/www.scmgalaxy.com\/tutorials\/wp-json\/wp\/v2\/media?parent=2104"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.scmgalaxy.com\/tutorials\/wp-json\/wp\/v2\/categories?post=2104"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.scmgalaxy.com\/tutorials\/wp-json\/wp\/v2\/tags?post=2104"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}