{"id":1159,"date":"2022-02-17T19:58:09","date_gmt":"2022-02-17T19:58:09","guid":{"rendered":"https:\/\/cyberconsulting.be\/?p=1159"},"modified":"2022-02-18T08:36:44","modified_gmt":"2022-02-18T08:36:44","slug":"elasticsearch-good-practices","status":"publish","type":"post","link":"https:\/\/cyberconsulting.be\/index.php\/2022\/02\/17\/elasticsearch-good-practices\/","title":{"rendered":"Elasticsearch good practices"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"1159\" class=\"elementor elementor-1159\" data-elementor-settings=\"[]\">\n\t\t\t\t\t\t\t<div class=\"elementor-section-wrap\">\n\t\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-c8d9162 elementor-section-boxed elementor-section-height-default elementor-section-height-default qodef-elementor-content-no qodef-tooltip-follow-no qodef-vertical-text-holder-no qodef-vertical-text-in-grid-no\" data-id=\"c8d9162\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-7ab8a0b\" data-id=\"7ab8a0b\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-da571ac elementor-widget elementor-widget-text-editor\" data-id=\"da571ac\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.5.1 - 20-12-2021 *\/\n.elementor-widget-text-editor.elementor-drop-cap-view-stacked .elementor-drop-cap{background-color:#818a91;color:#fff}.elementor-widget-text-editor.elementor-drop-cap-view-framed .elementor-drop-cap{color:#818a91;border:3px solid;background-color:transparent}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap{margin-top:8px}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap-letter{width:1em;height:1em}.elementor-widget-text-editor .elementor-drop-cap{float:left;text-align:center;line-height:1;font-size:50px}.elementor-widget-text-editor .elementor-drop-cap-letter{display:inline-block}<\/style>\t\t\t\t<p>When I was working at Nviso, I was in charge of engineering the Elasticsearch clusters. It&#8217;s a fabulous technology and open source project with very strong features, scalability and performance.<\/p><p>However, you&#8217;ll only get the full benefit if you follow the best practices from the beginning of your project. If you don&#8217;t take some precautions you can quickly get into trouble or even in an unrecoverable state. I invite you to read these interesting article I wrote for Nviso before diving into an cluster deployment..<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-bc85058 elementor-section-boxed elementor-section-height-default elementor-section-height-default qodef-elementor-content-no qodef-tooltip-follow-no qodef-vertical-text-holder-no qodef-vertical-text-in-grid-no\" data-id=\"bc85058\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-4103f8b\" data-id=\"4103f8b\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-cb68ab6 elementor-widget elementor-widget-heading\" data-id=\"cb68ab6\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.5.1 - 20-12-2021 *\/\n.elementor-heading-title{padding:0;margin:0;line-height:1}.elementor-widget-heading .elementor-heading-title[class*=elementor-size-]>a{color:inherit;font-size:inherit;line-height:inherit}.elementor-widget-heading .elementor-heading-title.elementor-size-small{font-size:15px}.elementor-widget-heading .elementor-heading-title.elementor-size-medium{font-size:19px}.elementor-widget-heading .elementor-heading-title.elementor-size-large{font-size:29px}.elementor-widget-heading .elementor-heading-title.elementor-size-xl{font-size:39px}.elementor-widget-heading .elementor-heading-title.elementor-size-xxl{font-size:59px}<\/style><h2 class=\"elementor-heading-title elementor-size-default\">Reduce the number of shards<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-76c1d76 elementor-section-boxed elementor-section-height-default elementor-section-height-default qodef-elementor-content-no qodef-tooltip-follow-no qodef-vertical-text-holder-no qodef-vertical-text-in-grid-no\" data-id=\"76c1d76\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-c75898f\" data-id=\"c75898f\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-83716e5 elementor-widget elementor-widget-text-editor\" data-id=\"83716e5\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>I have discovered many Elasticsearch clusters in a very bad state in my past experience. For most of them, it turns out the sharding configuration didn&#8217;t fit neither the data nor the purposes. In the time I wrote the article, it was difficult to modify a sharding configuration but still doable and I took the challenge! I invite you to read the outcome and the summary of my work:<\/p><p><blockquote class=\"wp-embedded-content\" data-secret=\"Xq2RY0yV4p\"><a href=\"https:\/\/blog.nviso.eu\/2019\/05\/06\/optimize-elasticsearch-for-security-log-collection-part-1-reducing-the-number-of-shards\/\">Optimizing Elasticsearch for security log collection &#8211; part 1: reducing the number of shards<\/a><\/blockquote><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; clip: rect(1px, 1px, 1px, 1px);\" title=\"&#8220;Optimizing Elasticsearch for security log collection &#8211; part 1: reducing the number of shards&#8221; &#8212; NVISO Labs\" src=\"https:\/\/blog.nviso.eu\/2019\/05\/06\/optimize-elasticsearch-for-security-log-collection-part-1-reducing-the-number-of-shards\/embed\/#?secret=OrRSak8bGn#?secret=Xq2RY0yV4p\" data-secret=\"Xq2RY0yV4p\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-e8be1d3 elementor-section-boxed elementor-section-height-default elementor-section-height-default qodef-elementor-content-no qodef-tooltip-follow-no qodef-vertical-text-holder-no qodef-vertical-text-in-grid-no\" data-id=\"e8be1d3\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-bc7df9a\" data-id=\"bc7df9a\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-04967ad elementor-widget elementor-widget-heading\" data-id=\"04967ad\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Index Lifecycle Management<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-f81849a elementor-section-boxed elementor-section-height-default elementor-section-height-default qodef-elementor-content-no qodef-tooltip-follow-no qodef-vertical-text-holder-no qodef-vertical-text-in-grid-no\" data-id=\"f81849a\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-6deb9cc\" data-id=\"6deb9cc\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-bc52e7c elementor-widget elementor-widget-text-editor\" data-id=\"bc52e7c\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Once the cluster recovers from an unstable state, I needed to make sure to not fallback again in an undesired situation. Back in time, there was a brand new feature released by Elastic called &#8220;Index Lifecycle Management&#8221; which aims at keeping your shards under control. This feature is particularly interesting for time series data which is eventually deleted according to a defined life-cycle:<\/p><p><blockquote class=\"wp-embedded-content\" data-secret=\"sRpgehBNyf\"><a href=\"https:\/\/blog.nviso.eu\/2019\/06\/17\/optimizing-elasticsearch-part-2-index-lifecycle-management\/\">Optimizing Elasticsearch &#8211; Part 2: Index Lifecycle Management<\/a><\/blockquote><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; clip: rect(1px, 1px, 1px, 1px);\" title=\"&#8220;Optimizing Elasticsearch &#8211; Part 2: Index Lifecycle Management&#8221; &#8212; NVISO Labs\" src=\"https:\/\/blog.nviso.eu\/2019\/06\/17\/optimizing-elasticsearch-part-2-index-lifecycle-management\/embed\/#?secret=t2yWrtFEHW#?secret=sRpgehBNyf\" data-secret=\"sRpgehBNyf\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-9e4224d elementor-section-boxed elementor-section-height-default elementor-section-height-default qodef-elementor-content-no qodef-tooltip-follow-no qodef-vertical-text-holder-no qodef-vertical-text-in-grid-no\" data-id=\"9e4224d\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-edb97c6\" data-id=\"edb97c6\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-5b8a9c3 elementor-widget elementor-widget-text-editor\" data-id=\"5b8a9c3\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Elasticsearch is evolving very fast, it started as a search engine on top of lucene for developers. It is now a complete SIEM with endpoints solution. The content of these blog posts might not be true anymore. It was for me a good lesson on how to configure it correctly to not end in difficult situations.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>When I was working at Nviso, I was in charge of engineering the Elasticsearch clusters. It&#8217;s a fabulous technology and open source project with very strong features, scalability and performance. However, you&#8217;ll only get the full benefit if you follow the best practices from the beginning of your project. If you don&#8217;t take some precautions [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":1176,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1159","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v18.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Elasticsearch good practices - CyberConsulting<\/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:\/\/cyberconsulting.be\/index.php\/2022\/02\/17\/elasticsearch-good-practices\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Elasticsearch good practices - CyberConsulting\" \/>\n<meta property=\"og:description\" content=\"When I was working at Nviso, I was in charge of engineering the Elasticsearch clusters. 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