| Service | Example | Distributed | Keep Value | Node Consensus | Atomicity | Consistency | Isolation | Durability | Persistency | Integrity | P2P | Trustless | Public Access | Programable | Can Keep Large Data | Note |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Service Discovery | ETCD, Zookeeper | T | F | T | F | F | F | F | F | T | T | F | F | F | F | Lite distributed database with built-in consensus |
| Traditional/Modern Database | MongoDB, MySQL, Hadoop | Depends | F | Depends | Depends | Depends | Depends | T | T | Depends | Depends | F | F | Depends | T | Most problem solved with them |
| In-memory Database | Redis, Memcache | F | F | F | Depends | T | F | Depends | F | F | F | F | F | F | F | fast/lite temporary database |
| Traditional P2P File Sharing | Bittornt | T | F | F | Undefined** | Undefined** | Undefined** | Undefined** | T | T | T | T | Partial*** | F | T | No transaction/update |
| Version Control System | Git/Git Servers | Partial | F | F | T | Depends | F | T | T | Partial | Partial | F | Depends | Partial | Partial | Depends on Configuration and plugins |
| Traditional Cryptocurrency | Bitcoin | T | T | T | T | T | T | T | T | T | T | T | T | Partial | F | Bitcoin can be programed? Yeah Bitcoin Script |
| Decentralized Application Platform/Crypto 2.0 | ETH/EOS and/or etc. | T | T | T | T | T | T | T | T | T | T | T | T | T | F | "Jack of all trade, Master of none" |
| Trust based Cryptocurrency | Stellar | T | T | T | T | T | T | T | T | T | T | F | T | Partial | F | Blockchain + Federation Server |
| Trust-based Distributed Application | Matrix Chat | T | F | F | Undefined** | Undefined** | Undefined** | Undefined** | T | Partial | T | F | T | T | T | Identity Server + Federation Server |
| P2P File System | IPFS | T | F | F | Undefined** | Undefined** | Undefined** | Undefined** | T | T | T | T | Partial*** | F | T | Bittorent with hashed url |
| Private DLT | Hyperledger | T | F | T | T | T | Depends | T | T | T | T | F | F | T | F | You need to know more about security than blockchain to use it |
** Undefined since there is no transaction or updating function *** Partial depends on how file host let people to discover
Data can be distributed (replicated) across multiple node
It can contains value in economic sense.
There is a mechanism that allow all node to agree upon some fact, such as Who is the leader of the cluster? What's the latest state of the data.
Half done transaction shall not possible.
No illegal (In Computer Science sense) transaction can be stored. But it does not mean the data is logically correct (in application sense)
If there are more than one transaction submitted at the same time, Service shall treat them as one after another.
Transaction must be written on harddisk to prevent stored data from missing.
Similar to durability but not only limited to transaction, Data must not be erased unless it is really meant to be deleted.
All node always contains and return the same data.
Node talk to another node on their own, No master needed.
Need trust to interact, share data with.
Anyone in the world can look at the data
Turing complete = T
My comment