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RocksDB from Facebook By @JnanDash | @ThingsExpo #IoT

Several users of RocksDB talked about their experience, especially in the IoT world

I attended a HIVE-sponsored Meetup yesterday evening titled, “Rocking the database world with RocksDB”. Since I had never heard of RocksDB, I was curious to learn how it is rocking the database world.

Facebook built this key value store storage layer originally to use for MySQL (instead of InnoDB), as MySQL is used heavily at Facebook. They claim that was not the only motivation. Then in 2013, they decided to open source RocksDB. Last evening’s speaker in an earlier post on November, 2013 had said, “Storing and accessing hundreds of petabytes of data is a huge challenge, and we’re constantly improving and overhauling our tools to make this as fast and efficient as possible. Today, we are open-sourcing RocksDB, an embeddable, persistent key-value store for fast storage that we built and use here at Facebook.”

RocksDB is also ideal for SSD (Flash store) and claims fast performance. The team was excited when MongoDB opened up to other storage engines back in 2014 summer. For a period of time, MongoDB plus RocksDB was a fast combination. Then MongoDB decided to acquire WiredTiger ( a competitor) in December, 2014 to contribute to the performance, scalability, and hardware efficiency of MongoDB. That left RocksDB out of the official engagement with MongoDB. But they built something called MongoRocks that claims to be very fast. It seems several MongoDB users prefer MongoRocks over the native combo of MongoDB with WiredTiger.

Several users of RocksDB talked about their experience, especially in the IoT world where sensor data can be processed at the edge (ingestion, aggregation, and some transformation) before being sent to the cloud servers. The only issue I saw is the fact that there is no “real” owner of RocksDB as a deliverable solution. There is no equivalent of a Cloudera (For Hadoop) or Confluent (for Kafka) who can provide value-additions and support for the user base. It’s all open source download and do-your-own stuff till now. So serious production-level deployment is still a risky affair. For now, it’s a developer’s play tool.

Read the original blog entry...

More Stories By Jnan Dash

Jnan Dash is Senior Advisor at EZShield Inc., Advisor at ScaleDB and Board Member at Compassites Software Solutions. He has lived in Silicon Valley since 1979. Formerly he was the Chief Strategy Officer (Consulting) at Curl Inc., before which he spent ten years at Oracle Corporation and was the Group Vice President, Systems Architecture and Technology till 2002. He was responsible for setting Oracle's core database and application server product directions and interacted with customers worldwide in translating future needs to product plans. Before that he spent 16 years at IBM. He blogs at http://jnandash.ulitzer.com.

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