diff --git a/content/devops-methodology/root-cause-analysis-postmortem/postmortem-example.md b/content/devops-methodology/root-cause-analysis-postmortem/postmortem-example.md index 9fbb32e63..e236e942f 100644 --- a/content/devops-methodology/root-cause-analysis-postmortem/postmortem-example.md +++ b/content/devops-methodology/root-cause-analysis-postmortem/postmortem-example.md @@ -77,7 +77,7 @@ The site experienced the classic cascading failure that affected all components - During the rollout, API keys for the `amazon-associates-link-builder` plugin got cleared ![](/assets/e82e21a-image_10.png) - During the rollout, TablePress options got cleared ![](/assets/4204bed-image_11.png) - ## Remediations +## Remediations List of actions performed to resolve the problem: @@ -120,13 +120,15 @@ Prior to rollout, all 3 production instances indicated high memory pressure (90% {{< img src="/assets/1f27db8-image_12.png" title="Pingdom 1" >}} -{{< img src="/assets/89c0050-image_13.png title="Pingdom 2" >}} +{{< img src="/assets/89c0050-image_13.png" title="Pingdom 2" >}} -{{< img src="/assets/9d3f441-image_14.png title="Pingdom 1" >}} +{{< img src="/assets/9d3f441-image_14.png" title="Pingdom 1" >}} ### Elastic Beanstalk -ElasticBeanstalk saw a massive increase in requests which manifested as a Denial of Service Attack. This was triggered probably by mod_pagespeed generating pages for webp assets which could not be served by upgraded servers. Varnish does not cache 404s. ![](/assets/af54926-image_15.png) +ElasticBeanstalk saw a massive increase in requests which manifested as a Denial of Service Attack. This was triggered probably by mod_pagespeed generating pages for webp assets which could not be served by upgraded servers. Varnish does not cache 404s. + +{{< img src="/assets/af54926-image_15.png" title="ElasticBeanstalk Request Spike" >}} {{< img src="/assets/dc4dbd3-image_16.png" title="ElasticBeanstalk Request Spike" >}} @@ -136,7 +138,7 @@ There were no deadlocks. There was no increase in IOPS (r/w) #### CPU Utilization spiked. -{{< img src="/assets/2e1d7be-image_17.png)" title="CPU Utilization Spiked" >}} +{{< img src="/assets/2e1d7be-image_17.png" title="CPU Utilization Spiked" >}} #### Connections peaked and maxed out.