Developing modern applications in cloud

AWS S3 Transfer Acceleration is a service provided by AWS to speed up the upload of file to S3. It basically uses Edge locations to upload the files and then uses AWS backbone to transfer the file to S3. You can view the results of a test I ran from London. As you can see there is no benefit of using it when you are uploading to a region closer to you but 25% gain for other regions https://s3-accelerate-speedtest.s3-accelerate.amazonaws.com/en/accelerate-speed-comparsion.html?result=3424-5714-9638-19209&identityId=unknown

S3 is a simple key based object store. S3 has globally unique namespace i.e. bucket name has be unique across all region but S3 bucket is created in a region. The data is stored on multiple devices spanning at least 3 AZs S3 has three URL scheme Global (legacy) Virtual Domain Based Path Based File size 0 bytes to 5 TB. Largest PUT 5GB Successful uploads produces a HTTP 200 Consistency Read after write for PUTS of new objects Eventual consistency for overwrites PUTS and DELETES S3 as objects and has following properties Key Value Version id Metadata Sub resources Access control list Torrents 99.99% availability, Amazon guarantees 99.9% and  99.999999999% durability (unlikely it will be lost) Tiered storage Standard S3 - IA S3 - one Zone - IA S3 - Intelligent Tiering

Software Engineering is one engineering field where there is always more than one way to solve a problem. Now this can be a blessing or a curse depending on the situation. There are so many instances I have seen where developers argue to nth degree which is the right way to solve a problem or write code. Should code be centralised or should be near to place where it is used? How do we make sure we dont miss updating the code if the code changes somewhere else in future? How do we make sure if someone else picks up the code and doesn't follow the convention? It is like as if you are building an extension to your house and the builder will use complete different bricks and not check what colour of bricks were already there even though it is right there in front of his eyes. So how do we solve the problem? How can we help the team to focus on the solution and not gold plate the solution? This is where patterns and principles come in. People have solved problems, If you study

Wow! it has been two years since I have written a post here. Time to Reboot/ Restart here. Lots has changed in last two years. I have changed couple of jobs. Learnt a lot from leading different teams - from a mature team of site reliability Engineers working for a multinational Fintech to a young team of developers working for a start up. It has been a journey of ups and downs in last two years. 2020 has been a challenging year with lockdown and working from home. Again lots of learning and working on new stuff like mobile development echo system.... So time to kick things off....