xingbowang 224e849e8d env: suppress liburing TSAN false positives (#14710)
Summary:
- Use the liburing TSAN suppressions in `tools/tsan_suppressions.txt` instead of defining the process-wide `__tsan_default_suppressions()` hook, avoiding conflicts with downstream applications.
- Wire RocksDB TSAN make and crash-test flows to use that suppressions file by default without overriding caller-provided `TSAN_OPTIONS`.
- Cover direct `db_crashtest.py` launches by passing the default suppressions to `db_stress` subprocesses.
- Fix the GCC 16 unity-build warning in `CacheItemHelper` by directly initializing the no-secondary-cache helper fields instead of delegating with `this`.

Imported from D101303486.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/14710

Test Plan:
- `COMPILE_WITH_TSAN=1 make -j128 env_test`
- `timeout 60s ./env_test --gtest_filter=EnvPosixTest.IOUringAddressReuseNoTsanFalsePositive`
- `python3 tools/db_crashtest_test.py`
- `python3 -m py_compile tools/db_crashtest.py tools/db_crashtest_test.py`
- CI: `build-linux-unity-and-headers` passed after the `CacheItemHelper` fix

Reviewed By: hx235

Differential Revision: D104103800

Pulled By: xingbowang

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RocksDB: A Persistent Key-Value Store for Flash and RAM Storage

CircleCI Status

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/main/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.

Questions and discussions are welcome on the RocksDB Developers Public Facebook group and email list on Google Groups.

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.

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