stevelandiss

You can't easily make a company out of selling free stuff?

Dude, chill.

Mostly people like you that thought it was a good product but never paid.

So if I were to run a database on this, wit a lot of overwrites, the storage would grow infinitely?

Secondly, this implies you are remapping the LBA (offsets) all the time, perhaps taking what would be sequential access and turning it into random? That sounds pretty painful.

How do you say that with conviction? I looked at the code and it has no bearings of being able to build a fault tolerant elastic block storage system.

If I could also add that NBD is extremely notorious in Linux. I am a block storage developer and NBD has been one of the main reasons why so many openstack storage products (like formation data and others) have really struggled. There are many known Linux kernel issues with NBD, for example, if an NBD provider (user space daemon) exits for any reason, the kernel panics. Here is an example of a long outstanding bug that has plagued the NBD community and openstack community for years (https://www.mail-archive.com/[email protected]...). It won't get addressed any time soon. I also looked at the repo and it looks like a very simplistic approach to a hard problem. BTW I have used etcd and if this is anything like etcd, I'd really be worried. etcd snapshots bring an entire cluster down for a while.

Why would you say that global state in a distributed system is not possible? The entire internet is a distributed system with global state. The state needs to be aware of the context and access, that's all.

@takeda, how do you create 3 different containers in Docker for dev/test/prod? What parameters are you changing in the three stages?

Agreed, but a docker image is lighter in weight and takes less time to deploy and consumes less resources on the target server

I consider it as a replacement for deploying applications as a virtual machine. That is, if I want to host compute and let anyone run any random program in a reproducible manner on my server, I could let them run it in docker and be done with it. So as am IT admin, I find this a useful alternative to letting people run arbitrary programs and add restrictions around it. I think this is more of an IT-OPS tool than something a developer would want to spend time with