Mini-Book: Securing Microservice APIs

“Securing Microservice APIs: Sustainable and Scalable Access Control” by Matt McLarty, Rob Wilson, and Scott Morrison Identification: “Service consumers and intermediaries must be able to send API request messages that include multiple identities along with optional attributes that detail those identities, and they must be able to accept API requests that include multiple identities and […]

Read more "Mini-Book: Securing Microservice APIs"

Book: DevOps Handbook

“DevOps Handbook: How to Create World-Class Agility, Reliability, & Security in Technology Organizations” By Gene Kim, Jez Humble, Patrick Debois, & John Willis Two conflicting goals: “Respond to the rapidly changing competitive landscape” “Provide stable, reliable, and secure service to the customer” “organizations adopting DevOps are able to linearly increase the number of deploys per […]

Read more "Book: DevOps Handbook"

Article: “We Crunched 1 Billion Java Logged Errors – Here’s What Causes 97% of Them”

A friend shared this article and I find it informative. Here are my notes: Steve Burton explained the challenge for engineers to troubleshoot production issues when the logs are filled with a large number of non-critical error messages. Not only this made troubleshooting of critical errors harder, it also has the following additional costs: “Disk storage to […]

Read more "Article: “We Crunched 1 Billion Java Logged Errors – Here’s What Causes 97% of Them”"

Notes from Couchbase Day

I had an opportunity to attend Couchbase Day to learn about the product. I’ve included my notes below, link to the presentation slides and other resources. Fail Over If a machine was power off by mistake and bought backup and able to read, it will require lighter weight recovery. This feature is in 3.x Can configure […]

Read more "Notes from Couchbase Day"

HowTo: Setup GWT remote logging

I find the official documentation on remote logging wasn’t complete. Here are my notes based on various web sites I visited (here, here, and here). Hope this helps! App.gwt.xml You should add the inherits statement below. You should be able to adjust the log level to any of the following: ALL, FINEST, FINER, FINE, CONFIG, INFO, […]

Read more "HowTo: Setup GWT remote logging"

Cloning a disk

Today I tried to use Parted Magic to clone a disk. At first, I used Clonezillathat came with Parted Magic. It failed on the last partition, which was a lvm2 pv partition. Next, I tried dd command with basic options, i.e. dd if=/dev/sda of=/dev/sdb That returned with an IO error. Then I used ddrescue, also bundled […]

Read more "Cloning a disk"