[jira] [Created] (S2GRAPH-142) CLONE - Add Redis storage(Key/Value storage) engine for S2Graph

["Hyunsung Jo (JIRA)" <ji...@apache.org>]

Hyunsung Jo created S2GRAPH-142:
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             Summary: CLONE - Add Redis storage(Key/Value storage) engine for S2Graph
                 Key: S2GRAPH-142
                 URL: https://issues.apache.org/jira/browse/S2GRAPH-142
             Project: S2Graph
          Issue Type: Task
            Reporter: Hyunsung Jo
            Assignee: Hyunsung Jo


h2. Background

The purpose of S2Graph is to support all features of edge/vertex operations  with HBase. It is also to orchestrate with HBase’s key features such as scale out / fault tolerant / highly available / etc. However, if there is no engineer to support stably in managing Hadoop cluster, it is very difficult to operate and maintain HBase and Hadoop clusters. Some companies, which already have another key/value storages to serve their services, may want to use S2Graph and also maintain their existing key/value storage environment. With S2Graph’s persistent storage, we would have a better support in operating another key/value storage. This is because S2Graph already has a strong feature, which can support multiple storage engines.

What is best key/value storage engine starting to support S2Graph?
Can companies maintain their existing key/value storage engine and use S2Graph at the same time? Yes, they can.
Most of companies already have cache layers using Redis or Memcache. It is ok for the companies to start with one of these storages to support another key/value storage engine. It is because Redis is already suitable to support HA and fault tolerant features. Therefore, they do not need to replace this existing key/value storage engine.

h2. Requirements

- Support S2Graph storage engine’s interface
-- Insert/Delete/Increment/etc.
-- Query
- Support serializer/deserializer to make edge/vertex data suit to key/value storage’s schema ( e.g. byte array encoding/decoding )
- Support idempotent feature (this is a similar feature to S2Graph)
- Design saving schema for edge(IndexEdge, SnapshotEdge) / vertex
- Support query builder for S2Graph’s getEdges syntax
- etc.


I would like to invite everyone to openly discuss about this. I will also make a to-do list before I carry this issue in depth. Your feedback is appreciated :)

P.S.
I couldn't fill some information about this issue, e.g. affected version, fix version, component, etc. Please help me to fill out these mandatory fields. 
In addition, this issue is umbrella issue for real subsequent tasks, so I would like to make this epic issue. Can anyone help me out? I am new to create apache jira issue :)



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