Hi,

 

I am building MariaDB from source code and have queries on linking of compression algorithm.

 

Before building the source code of MariaDB, I am exporting the path for SNAPPY or LZMA or the algorithm which is currently it supports.

 

Then I build the code with - cmake -B . -DCMAKE_INSTALL_PREFIX=$PWD/maria_bin  -DPLUGIN_MROONGA=NO -DPLUGIN_ROCKSDB=NO

cmake --build . -j

cmake –install .

 

It compiled the code and installed in the specified location.

 

When I checked the lib/plugin folder it has generated, provider_lzma.so or provider_snappy.so files and when I did ldd on that .so file, it has given the path from where it is fetching the liblzma.so.1 or libsnappy.so.1 file.

 

Query:

1. The path which ldd shows for provider_lzma.so or provider_snappy.so is taking form default path, and it is not from the path which I am exporting the library and bin path – could you please explain me the correct steps.
2. Is there any way or any Flag we can set to switch between different compression method during build time itself, and in which log we can check it has linked properly.
3. How to benchmark the linked compression method and how we can see it is using the linked compression method from the custom path of .so files.

 

Kindly help on above query.

 

Thanks

Rahul Raj