Http status code 499 is a non-standard status code introduced by nginx for the case when a client closes the connection while nginx is processing the request. I just encountered the 499 code in the nginx log a couple days ago. The reason of that is I wrote a Ajax to make a API call to the … Continue reading HTTP Code 499
We have a request type in Jira service desk that allows user to request a new Confluence Space. To let the user find a available Space key, I created a Confluence page (with some javascript codes) where user can type their preferred key and check whether it has been used. This is how it looks … Continue reading Confluence Space Key Check Page
AWS recently released the new version of AWS Well-Architected Framework, I just had a quick look. The biggest change to me is that the Architecture design principles (they call it pillars of the framework) have increased from 4 to 5. Now the 5 pillars of the framework are: Operational Excellence Security Reliability Performance Efficiency Cost … Continue reading Updated AWS Well-Architected Framework
It happened the other day that one user reported that he was unable to pull a docker image from an internal registry. So I tried from my laptop, it looked fine at the first beginning. There were a few downloading processed going on, but it threw the error unknown blob at the end. So I tried … Continue reading Error response from daemon: error unmarshalling content: unexpected end of JSON input
I have been recently working on improving our performance monitoring against Jira and Confluence. And here I want to share a few things that I learned, and hope they are useful to you as well. In high level, we have done: Setup both black box monitoring (CPU, memory, IO, Error log ...) and white box … Continue reading Jira and Confluence Performance Monitoring Part One
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