f15414b656
Summary: Timer (defined in timer.h) schedules and runs user-specified fuctions regularly. Current implementation holds the mutex while running user function, which will lead to contention and waiting. To fix, Timer::Run releases mutex before running user function, and re-acquires it afterwards. This fix will impact how we can cancel a task. If the task is running, it is not holding the mutex. The thread calling Cancel() should wait until the current task finishes. Test Plan (devserver): make check COMPILE_WITH_ASAN=1 make check Pull Request resolved: https://github.com/facebook/rocksdb/pull/7228 Reviewed By: jay-zhuang Differential Revision: D23065487 Pulled By: riversand963 fbshipit-source-id: 07cb59741f506d3eb875c8ab90f73437568d3724 |
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| cmake | ||
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| db | ||
| db_stress_tool | ||
| docs | ||
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| file | ||
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| java | ||
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| AUTHORS | ||
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| CODE_OF_CONDUCT.md | ||
| CONTRIBUTING.md | ||
| COPYING | ||
| DEFAULT_OPTIONS_HISTORY.md | ||
| defs.bzl | ||
| DUMP_FORMAT.md | ||
| HISTORY.md | ||
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| issue_template.md | ||
| LANGUAGE-BINDINGS.md | ||
| LICENSE.Apache | ||
| LICENSE.leveldb | ||
| Makefile | ||
| README.md | ||
| ROCKSDB_LITE.md | ||
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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.