Hi.
Over the past few weeks, I’ve made some progress.
Most progress was made on the first cut of the ruby gem. https://github.com/blockchain-node/ruby-client The basic functionality of being able to connect to a launched BCN node and make any RPC call over HTTPS fully working. I’ve been working on building some specific support for certain nodes - bitcoin and ethereum.
The skeleton to my first app being written on this platform is taking shape as well. I’ve decided to keep it simple and do a basic cross node wallet. Drop in your API keys, start the app and you have visibility into your hosted wallets, can create new wallets and/or accounts and view and send transactions. More to come here.
I’ve also spent some time exploring options for different distributed file systems. I ended up going pretty deep with ceph. Ceph provides distributed object and block device storages across a cluster of computers. I built a 4 node cluster using i3.large nodes that have NVMe backed SSD drives. At first, I was getting performance that was on slightly under a stock EBS gp2 volume at around 120 MB/s sequential read / write. When I reduced the replication to 2, from the default of 3 shards per object, it spiked up to about 140-150 MB/s. This was still not nearly as performant as a large 2TB+ EBS gp2 volume where you can get sustained speeds of around 250MB/s. The real hit was the random access performance tests. I cancelled the test suite after about 30 minutes when it still hadn’t finished.
Thanks for reading.
Matt