35af0433cf
Summary: Forgot to re-test crash test after adding read-only filesystem enforcement to https://github.com/facebook/rocksdb/issues/8142. The problem is ReadOnlyFileSystem would reject CreateDirIfMissing whenever DBOptions::create_if_missing=true. The fix that is better for users is to allow CreateDirIfMissing in ReadOnlyFileSystem if the directory exists, so that they don't cause a failure on using create_if_missing with opening backups as read-only DBs. Added this option test to the unit test (in addition to being in the crash test). Also fixed a couple of lints. And some better messaging from 'make format' so that when you run it with uncommitted changes, it's clear that it's only checking the uncommitted changes. Pull Request resolved: https://github.com/facebook/rocksdb/pull/8161 Test Plan: local blackbox_crash_test with amplified backup_one_in Reviewed By: ajkr Differential Revision: D27614409 Pulled By: pdillinger fbshipit-source-id: 63ccb626c7e34c200d61c6bca2a8f60da9015179
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 especially 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/ and https://rocksdb.slack.com/
License
RocksDB is dual-licensed under both the GPLv2 (found in the COPYING file in the root directory) and Apache 2.0 License (found in the LICENSE.Apache file in the root directory). You may select, at your option, one of the above-listed licenses.