EMC Research Institute electrical notes

It was indeed the research institute that asked about some very scientific research things,AlgorithmNothing is involved at all.
First, ask the three articles on your resume.ArticleOne is about distributed RDF data processing, the other is about query cache, and the other is less involved, so I did not ask.

1. Distributed RDF Data Processing

Q. How to divide the RDF data? (Answer according to the study plan)
Q. How to divide relational databases? (Vertical partitioning/separation of different tables, horizontal partitioning/multiple copies of a table)
Q. What is sharding? (This is really hard to understand... This morning I also saw a slide mentioned it. Later, I found out that sharding is not good at distributed dB)
Q. What is consistent hash? (I have never heard of it yet, and I started to think I am sb)

2. query Cache

Q. What is the description? (Answered according to the study plan.

I also asked what is commonly usedProgramming Language(Java> C/C ++), familiar with Linux or not (understand, but not familiar ).
Then there are two projects (sharding on PostgreSQL and hadoop) Here, so that I can select a preference and sharding.
Finally, I asked if there were any other offers, saying that I would like to be able to practice on the cloud for more than three months.
After several rounds, I asked him when I could give the results. He said it would be okay after the festival.
The call lasts about 15 minutes ).
Wait and prepare opportunities for other companies.

Fighting!