b71b4597e7
Summary: In https://github.com/facebook/rocksdb/issues/8268, the `db_stress` stdout began containing both the strings "fail" and "error" (case-insensitive). The whitebox crash test failed upon seeing either of those strings. I checked that all other occurrences of "fail" and "error" (case-insensitive) that `db_stress` produces are printed to `stderr`. So this PR separates the handling of `db_stress`'s stdout and stderr, and only fails when one those bad strings are found in stderr. The downside of this PR is `db_stress`'s original interleaving of stdout/stderr is not preserved in `db_crashtest.py`'s output. Pull Request resolved: https://github.com/facebook/rocksdb/pull/8272 Test Plan: run it; see it succeeds for several runs until encountering a real error ``` $ python3 tools/db_crashtest.py whitebox --simple --random_kill_odd=8887 --max_key=1000000 --value_size_mult=33 ... db_stress: cache/clock_cache.cc:483: bool rocksdb::{anonymous}::ClockCacheShard::Unref(rocksdb::{anonymous}::CacheHandle*, bool, rocksdb::{anonymous}::CleanupContext*): Assertion `CountRefs(flags) > 0' failed. TEST FAILED. Output has 'fail'!!! ``` Reviewed By: zhichao-cao Differential Revision: D28239233 Pulled By: ajkr fbshipit-source-id: 3b8602a0d570466a7e2c81bb9c49468f7716091e |
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| LICENSE.Apache | ||
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README.md
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.