{"id":4833,"date":"2017-07-22t18:56:57","date_gmt":"2017-07-22t18:56:57","guid":{"rendered":"\/\/www.catharsisit.com\/?p=4833"},"modified":"2017-07-22t18:56:57","modified_gmt":"2017-07-22t18:56:57","slug":"outage-july-22","status":"publish","type":"post","link":"\/\/www.catharsisit.com\/blog\/outage-july-22\/","title":{"rendered":"our site went down and we&#8217;re sorry"},"content":{"rendered":"<p><strong>july 24, 9:45am pdt<\/strong><\/p>\n<p>we think we&#8217;ve stopped the attack, but we&#8217;re continuing the monitor. the site should be working for most students and we&#8217;ll continue looking into the issues.<\/p>\n<p><strong>july 24, 9:15am pdt<\/strong><\/p>\n<p>unfortunately, we&#8217;re still experiencing issues and intermittent down time. it looks like someone is flooding our servers with &#8220;fake&#8221; traffic, also known as a <a href=\"https:\/\/en.wikipedia.org\/wiki\/denial-of-service_attack\" target=\"_blank\" rel=\"noopener noreferrer\">dos attack<\/a>. our team and partners are trying to determine how to stop the attack.<\/p>\n<p><strong>july 22, 12:00pm pdt<\/strong><\/p>\n<p>we had an unexpected outage today, and i\u2019m truly sorry. we know how important your studies are and that many of you have upcoming tests or blocked off time today to study, and we let you down. we don\u2019t have all the details, and we\u2019re not 100% sure we\u2019re in the clear, but i wanted to share a little bit about what happened.<\/p>\n<p>first, here\u2019s the timeline (all times pacific daylight time on saturday, july 22nd):<\/p>\n<ul>\n<li>2:00am: our site became slow<\/li>\n<li>5:30am: the site was entirely down<\/li>\n<li>6:30am: the site was back up but very slow again and intermittently down<\/li>\n<li>11:00am: the site was back up<\/li>\n<\/ul>\n<p>we host our servers with amazon via amazon web services. we also use a company in australia to help us work with amazon. they monitor our servers and try to make sure everything&#8217;s running smoothly.<\/p>\n<p>so what happened?<\/p>\n<p>there was a problem with the server our database is on. our database is where we store all of your information, such as which questions you\u2019ve answered, when your account expires, etc. every time you submit an answer, flip a flashcard, or take any other action on our site, we store that in our database so we can keep track of your progress and provide that information back to you. the database server had connectivity issues which ultimately impacted your ability to use the site. we have automated backups that should kick in when something like this happens, but unfortunately they didn\u2019t work either. we don\u2019t exactly know why the issue happened and why the backups didn\u2019t work yet, but we\u2019re looking into it.<\/p>\n<p>our engineering team and our partners in australia decided the best course of action would be to completely replace our database and database server. this meant we\u2019d need to take the site down entirely for about 15 minutes while we set up the new server and copied over the new database. we took this action around 10:45am and the site was back up by 11am.<\/p>\n<p>ideally, the site would have never gone down, or if it did, we\u2019d have identified the solution earlier. we\u2019ll look into why this happened and see how we can prevent it in the future. i\u2019m truly sorry for disrupting your studies, and if you want to share your thoughts or need a little extra time on your account or need anything else, let us know by emailing help@www.catharsisit.com.<\/p>\n<p>thanks,<br \/>\nbhavin<br \/>\nceo, magoosh<\/p>\n<p>&nbsp;<\/p>\n<hr width=\"50%\" \/>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>july 24, 9:45am pdt we think we&#8217;ve stopped the attack, but we&#8217;re continuing the monitor. the site should be working for most students and we&#8217;ll continue looking into the issues. july 24, 9:15am pdt unfortunately, we&#8217;re still experiencing issues and intermittent down time. it looks like someone is flooding our servers with &#8220;fake&#8221; traffic, also [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"ppma_author":[496],"class_list":["post-4833","post","type-post","status-publish","format-standard","hentry","category-team-news"],"acf":[],"yoast_head":"<!-- this site is optimized with the yoast seo premium plugin v21.7 (yoast seo v21.7) - 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