In Datadog, I received the following error: initialize check class [ERROR]: ‘while scanning for the next token\nfound character that cannot start any token\n in “<byte string> After running sudo /etc/init.d/datadog-agent info   I investigated the unhappy files in /etc/dd-agent/conf.d and found that the yaml indentation was incorrect. I had used 4 spaces instead of 2 … [Read more…]

I look this up constantly so I’m putting it here. du -a / | sort -n -r | head -n 10 Referenced from Cyberciti.

AWS Lambda is a great tool to enhance your messaging and alerting without creating more infrastructure to manage. Use Case I have CloudWatch Log Alarms (originating from CloudTrail events) that I want to act upon by uploading data to S3. Lambda Function Create a Lambda function with these attributes. Code console.log(‘Loading function’); exports.handler = function(event, … [Read more…]

I ran into the error: Network vpc-* has some mapped public address(es). Please unmap those public address(es) before detaching the gateway while working with AWS CloudFormation templates. This error message is accurate but if you don’t fully understand VPCs, it can be very confusing. After learning what and why this happens, I decided to write it down … [Read more…]

I was talking to jtzl the other day. He said something post worthy. I see systems engineering as essential to keep as simple and transparent as possible because that allows the app developers to make mistakes If system configuration issues are unpredictable, it slows down app development and makes it unclear where bugs are being … [Read more…]