Note:
This topic has been translated from a Chinese forum by GPT and might contain errors.Original topic: TiFlash 编译踩坑总结
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username: RinChanNOWWW
Here is a brief summary of the issues encountered while compiling TiFlash.
P.S. Differences may vary greatly depending on the platform and environment. This article is for reference only.
Development Environment:
- OS: Ubuntu 18.04 LTS (Bionic Beaver)
- Kernel: x86_64 Linux 4.15.0-112-generic
Issues and Solutions
- CMake version is too low
CMake version needs to be 3.21.0 or above.
- Compilation fails due to warnings being treated as errors because of the -Werror option.
Reason: Improper compiler version used.
Solution: Only use gcc 7.x and clang 13+. This is also mentioned in the README and should not be ignored.
- Compilation fails due to a method in the standard library being deprecated.
Reason and solution are the same as above.
- TiFlash startup fails due to an assert failure in vector, causing a core dump.
Reason: Mixing of libc++ and libstdc++. You can use the ldd command to check the dynamic library dependencies of the binary and lib files to see if there is any mixing. If the libstdc++ library exists in the environment, it will be included by default when compiling tiflash-proxy.
Solution: Update the code to the version of this PR fix(cmake): make sure libc++ is utilized by tiflash-proxy by SchrodingerZhu · Pull Request #5281 · pingcap/tiflash · GitHub. Explicitly specify the stdlib during compilation, i.e., modify the CXXFLAGS in contrib/tiflash-proxy-cmake/CMakeLists.txt: “CXXFLAGS=-fuse-ld=lld -w -stdlib=libc++”
- Compilation of raftstore-proxy fails with error: linking with
xxxxx/tiflash/build/contrib/tiflash-proxy-cmake/tiflash-linkerfailed: exit status: 1 due to duplicate symbols causing the link to fail.
Reason: (Explanation received from an expert) If c++ libX statically links libA, libA will not be packaged into libX, but Rust will. Manually printing a crypto in build.rs in rocksdb caused rustc to search for the system’s direct bundle. Then, specifying the dependency on openssl-sys led to a conflict.
Solution:
- Remove the libssl-dev library (my solution).
- 编译TiFlash6.0中遇到tiflash_proxy不通过 - TiDB 的问答社区 (Other solutions on Asktug).
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