4decff6fa8
Summary: We have seen cases where it could be good to change TTL on already open DB. Change ttl in TtlCompactionFilterFactory on open db. Next time a filter is created, it will filter accroding to the set TTL. Is this something that could be useful for others? Any downsides? Closes https://github.com/facebook/rocksdb/pull/3292 Differential Revision: D6731993 Pulled By: miasantreble fbshipit-source-id: 73b94d69237b11e8730734389052429d621a6b1e
RocksDB: A Persistent Key-Value Store for Flash and RAM Storage
RocksDB is developed and maintained by Facebook Database Engineering Team. It is built on earlier work on LevelDB by Sanjay Ghemawat (sanjay@google.com) and Jeff Dean (jeff@google.com)
This code is a library that forms the core building block for a fast key value server, especially suited for storing data on flash drives. It has a Log-Structured-Merge-Database (LSM) design with flexible tradeoffs between Write-Amplification-Factor (WAF), Read-Amplification-Factor (RAF) and Space-Amplification-Factor (SAF). It has multi-threaded compactions, making it specially suitable for storing multiple terabytes of data in a single database.
Start with example usage here: https://github.com/facebook/rocksdb/tree/master/examples
See the github wiki for more explanation.
The public interface is in include/. Callers should not include or
rely on the details of any other header files in this package. Those
internal APIs may be changed without warning.
Design discussions are conducted in https://www.facebook.com/groups/rocksdb.dev/