{"id":937,"date":"2017-01-04T00:02:42","date_gmt":"2017-01-04T00:02:42","guid":{"rendered":"https:\/\/www.couchbase.com\/blog\/scaling-rebalancing-couchbase-cluster-cli\/"},"modified":"2017-01-04T00:02:42","modified_gmt":"2017-01-04T00:02:42","slug":"scaling-rebalancing-couchbase-cluster-cli","status":"publish","type":"post","link":"https:\/\/www.couchbase.com\/blog\/pt\/scaling-rebalancing-couchbase-cluster-cli\/","title":{"rendered":"Scaling and Rebalancing a Couchbase Cluster using CLI"},"content":{"rendered":"\n<p><a href=\"https:\/\/www.couchbase.com\/developers\/\">Couchbase<\/a> provides <a href=\"https:\/\/developer.couchbase.com\/documentation\/server\/4.1\/ha-dr\/ha-dr-intro.html\">high availability and disaster recovery<\/a>\u00a0in several ways:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Homogenous cluster<\/li>\n\n\n<li><a href=\"https:\/\/developer.couchbase.com\/documentation\/server\/4.1\/architecture\/high-availability-replication-architecture.html\">Replication<\/a>\n<ul>\n<li class=\"p1\"><a href=\"https:\/\/developer.couchbase.com\/documentation\/server\/current\/architecture\/intra-cluster-replication.html\">Intra-cluster replication<\/a><\/li>\n<li class=\"p1\"><a href=\"https:\/\/developer.couchbase.com\/documentation\/server\/4.1\/xdcr\/xdcr-intro.html\">Cross-data center replication (XDCR)<\/a><\/li>\n<\/ul>\n<\/li>\n\n\n<li><a href=\"https:\/\/developer.couchbase.com\/documentation\/server\/current\/backup-restore\/backup-restore.html\">Backup and restore<\/a><\/li>\n\n\n<li><a href=\"https:\/\/docs.couchbase.com\/admin\/admin\/Concepts\/concept-rack-awareness.html\">Rack zone awareness<\/a><\/li>\n\n<\/ul>\n\n\n\n<p>This blog will show how to create a Couchbase cluster using Couchbase Command Line Interface (CLI). In addition, these steps can also be performed using the <a href=\"https:\/\/developer.couchbase.com\/documentation\/server\/current\/rest-api\/rest-endpoints-all.html\">Couchbase REST API<\/a> and the\u00a0<a href=\"https:\/\/developer.couchbase.com\/documentation\/server\/current\/admin\/ui-intro.html\">Couchbase Web Console<\/a>.<\/p>\n\n\n\n<p><a href=\"https:\/\/www.couchbase.com\/wp-content\/uploads\/sites\/5\/2026\/05\/couchbase-cluster-amazon-1024x265-1.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-large wp-image-13995\" src=\"https:\/\/www.couchbase.com\/wp-content\/uploads\/sites\/5\/2026\/05\/couchbase-cluster-amazon-1024x265-1.png\" alt=\"couchbase-cluster-amazon\" width=\"604\" height=\"156\"><\/a><\/p>\n\n\n\n<p>Couchbase nodes in a cluster are homogeneous. Applications can write to any node and read from any node.\u00a0There is no write-to-master and read-from-slave architecture that inherently gives you scalability problems.\u00a0This allows the Couchbase cluster to truly scale horizontally to meet your growing application demands.<\/p>\n\n\n\n<p>Creating a Couchbase cluster involves the following steps:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Provision Couchbase<\/strong>:\u00a0Provision 1 or more\u00a0Couchbase nodes, say on Amazon Web Services<\/li>\n\n\n<li><strong>Initialize master<\/strong>: Initialize any node\u00a0to be the &#8220;master&#8221; of the cluster by calling <code>cluster-init<\/code> CLI command<\/li>\n\n\n<li><strong>Create cluster<\/strong>: For all other nodes, create a\u00a0cluster by\u00a0invoking the <code>server-add<\/code> CLI command<\/li>\n\n\n<li><strong>Rebalance cluster<\/strong>: Finally, rebalance the cluster by calling the <code>rebalance<\/code> CLI command<\/li>\n\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Provision Couchbase<\/h2>\n\n\n\n<p>Provision a Couchbase node on Amazon:<\/p>\n\n\n<p>[crayon lang=&#8221;default&#8221; decode=&#8221;true&#8221;]aws ec2 run-instances<br \/>\n&#8211;image-id ami-db95ffbb<br \/>\n&#8211;count 1<br \/>\n&#8211;instance-type m3.large<br \/>\n&#8211;key-name my-couchbase-key<br \/>\n&#8211;security-groups &#8220;Couchbase Server Community Edition-4-0-0-AutogenByAWSMP-&#8220;[\/crayon]<\/p>\n\n\n\n<p>Security group name is explained in <a href=\"https:\/\/www.couchbase.com\/blog\/couchbase-cluster-amazon-using-cli\/\">Couchbase Cluster on Amazon using CLI<\/a>. Let&#8217;s call this node as\u00a0&#8220;master&#8221;.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Initialize Couchbase &#8220;master&#8221;<\/h2>\n\n\n\n<p>Configure the &#8220;master&#8221; instance and initialize the cluster:<\/p>\n\n\n<p>[crayon lang=&#8221;default&#8221; decode=&#8221;true&#8221;]export COUCHBASE_CLI=\/Users\/arungupta\/tools\/Couchbase-Server-4.0.app\/Contents\/Resources\/couchbase-core\/bin\/couchbase-cli<br \/>\n$COUCHBASE_CLI<br \/>\n        cluster-init<br \/>\n        -c :8091<br \/>\n        -u Administrator<br \/>\n        -p password<br \/>\n        &#8211;cluster-username Administrator<br \/>\n        &#8211;cluster-password password<br \/>\n        &#8211;cluster-index-ramsize=300<br \/>\n        &#8211;cluster-ramsize=300<br \/>\n        &#8211;services=data,index,query[\/crayon]<\/p>\n\n\n\n<p>Create another instance, lets call it &#8220;worker&#8221;. Note, this is not a master\/slave architecture. Couchbase cluster is\u00a0homogenous where any node in the cluster can be &#8220;master&#8221;.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Create Couchbase Cluster<\/h2>\n\n\n\n<p>Add this newly created &#8220;worker&#8221; instance to the cluster:<\/p>\n\n\n<p>[crayon lang=&#8221;default&#8221; decode=&#8221;true&#8221;]$COUCHBASE_CLI<br \/>\n    server-add<br \/>\n    &#8211;cluster=:8091<br \/>\n    &#8211;user Administrator<br \/>\n    &#8211;password password<br \/>\n    &#8211;server-add=<br \/>\n    &#8211;server-add-username=Administrator<br \/>\n    &#8211;server-add-password=password[\/crayon]<\/p>\n\n\n\n<p>Typically, you&#8217;ll create and add multiple nodes to the cluster before rebalancing.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Rebalance Couchbase Cluster<\/h2>\n\n\n\n<p>Rebalance the cluster:<\/p>\n\n\n<p>[crayon lang=&#8221;default&#8221; decode=&#8221;true&#8221;]$COUCHBASE_CLI<br \/>\nrebalance<br \/>\n&#8211;cluster=:8091<br \/>\n&#8211;user Administrator<br \/>\n&#8211;password password[\/crayon]<\/p>\n\n\n\n<p>Now, you can create as many instances and easy include them in the cluster. Adding a single node and rebalancing the cluster can be easily done as a single step:<\/p>\n\n\n<p>[crayon lang=&#8221;default&#8221; decode=&#8221;true&#8221;]$COUCHBASE_CLI<br \/>\nrebalance<br \/>\n&#8211;cluster=:8091<br \/>\n&#8211;user Administrator<br \/>\n&#8211;password password<br \/>\n&#8211;server-add=<br \/>\n&#8211;server-add-username=Administrator<br \/>\n&#8211;server-add-password=password[\/crayon]<\/p>\n\n\n\n<p>Now, your cluster is accessible at https:\/\/:8091 or https:\/\/:8091. Further references\u00a0&#8230;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/developer.couchbase.com\/server\">Couchbase Server Developer\u00a0Portal<\/a><\/li>\n\n\n<li><a href=\"https:\/\/developer.couchbase.com\/documentation\/server\/current\/sdks\/java-2.2\/hello-couchbase.html\">Hello Couchbase Example<\/a><\/li>\n\n\n<li><a href=\"https:\/\/developer.couchbase.com\/documentation\/server\/current\/cli\/cbcli-intro.html\">Couchbase CLI<\/a><\/li>\n\n\n<li>Questions on <a href=\"https:\/\/stackoverflow.com\/questions\/tagged\/couchbase\">StackOverflow,<\/a>\u00a0<a href=\"https:\/\/www.couchbase.com\/forums\/\">Forums<\/a>\u00a0or <a href=\"https:\/\/couchbase-community.slack.com\/\">Slack Channel<\/a><\/li>\n\n\n<li>Follow us\u00a0<a href=\"https:\/\/twitter.com\/couchbasedev\">@couchbasedev<\/a><\/li>\n\n\n<li><a href=\"https:\/\/www.couchbase.com\/next\/\">Couchbase 4.5 Beta<\/a><\/li>\n\n<\/ul>\n\n\n\n<p>Enjoy!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Couchbase provides high availability and disaster recovery\u00a0in several ways: This blog will show how to create a Couchbase cluster using Couchbase Command Line Interface (CLI). In addition, these steps can also be performed using the Couchbase REST API and the\u00a0Couchbase Web Console. Couchbase nodes in a cluster are homogeneous. Applications can write to any node [&hellip;]<\/p>\n","protected":false},"author":58,"featured_media":18,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[54],"tags":[],"ppma_author":[126],"class_list":["post-937","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-couchbase-server"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.6 (Yoast SEO v27.6) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Scaling and Rebalancing a Couchbase Cluster using CLI - The Couchbase Blog<\/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.couchbase.com\/blog\/pt\/scaling-rebalancing-couchbase-cluster-cli\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Scaling and Rebalancing a Couchbase Cluster using CLI\" \/>\n<meta property=\"og:description\" content=\"Couchbase provides high availability and disaster recovery\u00a0in several ways: This blog will show how to create a Couchbase cluster using Couchbase Command Line Interface (CLI). 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