{"id":597,"date":"2011-09-13T09:49:11","date_gmt":"2011-09-13T14:49:11","guid":{"rendered":"http:\/\/bucktownbell.com\/?p=597"},"modified":"2012-10-14T17:51:12","modified_gmt":"2012-10-14T22:51:12","slug":"faq-clusterlabs","status":"publish","type":"post","link":"http:\/\/bucktownbell.com\/?p=597","title":{"rendered":"ClusterLabs"},"content":{"rendered":"<blockquote><p>Pacemaker keeps your applications running when they or the machines they&#8217;re running on fail. However it can&#8217;t do this without connectivity to the other machines in the cluster &#8211; a significant problem in its own right.<\/p>\n<p>Rather than re-implement the wheel, Pacemaker supports existing implimentations such as Heartbeat. Heartbeat provides:<\/p>\n<ul>\n<li>a mechansigm to reliably send messages between nodes,<\/li>\n<li>notifications when machines appear and disappear<\/li>\n<li>a list of machines that are up that is consistent throughout the cluster<\/li>\n<\/ul>\n<p><a title=\"http:\/\/www.linux-ha.org\" href=\"http:\/\/www.linux-ha.org\/\" rel=\"nofollow\">Heartbeat<\/a> was also the first stack supported by the Pacemaker codebase.<\/p><\/blockquote>\n<p>via <a href=\"http:\/\/clusterlabs.org\/wiki\/FAQ#Organizational\">FAQ &#8211; ClusterLabs<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Pacemaker keeps your applications running when they or the machines they&#8217;re running on fail. However it can&#8217;t do this without connectivity to the other machines in the cluster &#8211; a significant problem in its own right. Rather than re-implement the &hellip; <a href=\"http:\/\/bucktownbell.com\/?p=597\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[284],"tags":[51,83,906,62],"class_list":["post-597","post","type-post","status-publish","format-standard","hentry","category-servers","tag-clustering","tag-faq","tag-heartbeat","tag-high-availability"],"_links":{"self":[{"href":"http:\/\/bucktownbell.com\/index.php?rest_route=\/wp\/v2\/posts\/597","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/bucktownbell.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/bucktownbell.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/bucktownbell.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/bucktownbell.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=597"}],"version-history":[{"count":4,"href":"http:\/\/bucktownbell.com\/index.php?rest_route=\/wp\/v2\/posts\/597\/revisions"}],"predecessor-version":[{"id":7198,"href":"http:\/\/bucktownbell.com\/index.php?rest_route=\/wp\/v2\/posts\/597\/revisions\/7198"}],"wp:attachment":[{"href":"http:\/\/bucktownbell.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=597"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/bucktownbell.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=597"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/bucktownbell.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=597"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}