Design the storage structure for graph data
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Key: HAMA-201
URL: https://issues.apache.org/jira/browse/HAMA-201
Project: Hama
Issue Type: New Feature
Components: graph
Reporter: Hyunsik Choi
For graph package, we need a novel storage structure in response to our main
objective. It can be a file structure or a storage system like Hbase.
Its requirements are as follows:
* It has to support random access to any vertex by a given key.
* The key will be an array of bytes.
* A vertex or edge has a label value composed of an array of bytes.
* The maximum degree of a vertex can be almost infinity.
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