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RocksDB, like LevelDB, stores keys and values in arbitrary byte arrays, and data is sorted byte-wise by key or by providing a custom comparator. RocksDB provides all of the features of LevelDB, plus: Transactions [16] Backups [17] and snapshots [18] Column families [19] Bloom filters [20] Time to live (TTL) support [21] Universal compaction [22]
RocksDB is optimized for fast, low-latency storage, and MyRocks is aimed at keeping the storage savings efficient. MyRock's efficiency focuses on better space efficiency, better write efficiency, and better read efficiency. [4] Better space efficiency means using less SSD storage. Better write efficiency means SSD endurance.
RocksDB uses skip lists for its default Memtable implementation. [ 16 ] Skip lists are also used in distributed applications (where the nodes represent physical computers, and pointers represent network connections) and for implementing highly scalable concurrent priority queues with less lock contention, [ 17 ] or even without locking , [ 18 ...
Written in C++ and optimized for in-memory computing. In addition ArangoDB integrated RocksDB for persistent storage. ArangoDB supports Java, JavaScript, Python, PHP, NodeJS, C++ and Elixir. For resilient cluster behavior, ArangoDB offers a Raft-based cluster management. Datablitz (formerly Dali) Bell Labs (Alcatel-Lucent) 1997
A tabular data card proposed for Babbage's Analytical Engine showing a key–value pair, in this instance a number and its base-ten logarithm. A key–value database, or key–value store, is a data storage paradigm designed for storing, retrieving, and managing associative arrays, and a data structure more commonly known today as a dictionary or hash table.
The AWS Redshift and RocksDB databases include support for field compression using Zstandard. [ 22 ] In March 2018, Canonical tested [ 23 ] the use of zstd as a deb package compression method by default for the Ubuntu Linux distribution.
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Percona is an American company based in Durham, North Carolina and the developer of a number of open source software projects for MySQL, MariaDB, PostgreSQL, MongoDB and RocksDB users. The company’s revenue of around $25 million a year is derived from support, consultancy and managed services of database systems. [1]