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  1. MariaDB Server
  2. MDEV-37316

Change Replication and other sql/* to use Connector/C

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    • Q4/2025 Server Development

    Description

      it is 10 year old story. Of course, the idea was not to keep 2 libmariadbs, but get rid of the one inside the server. The reason is incompatibility of MYSQL structure, and direct use of its members inside the server's slave code. mysql->net can't be used, mysql->net.vio can't be used. read_pos or whatever, it is all not using MYSQL* as opaque thing, and it is not using only official APIs to access it.
      ⸺ wlad, https://mariadb.zulipchat.com/#narrow/channel/118759-general/topic/.60sql-common.60.20vs.2E.20.60libmariadb.60/near/532951021

      November 2025 update

      I will reduce the scope of this task to only client-like components.
      It will not solve the 2-libmariadb issue in full, but will allow Replication’s MDEV-19248 to move forward without compromising on a tangent.

      The server-side components make extensive use of mysql->net and mysql->net.vio.
      For them, either

      • They must refactor to avoid overlapping with client connection code, or
      • The C Connector must first officially export a reusable networking API.

      My August comment has the details.

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          blocks

          New Feature - A new feature of the product, which has yet to be developed. MDEV-19248 Implement MASTER_BIND for CHANGE MASTER

          • Critical - Crashes, loss of data, severe memory leak.
          • Stalled
          causes

          New Feature - A new feature of the product, which has yet to be developed. MDEV-36812 Implement MYSQL_OPT_BIND

          • Critical - Crashes, loss of data, severe memory leak.
          • Stalled
          is part of

          Task - A task that needs to be done. MDEV-10900 change federateds, connect, and replication to use Connector/C

          • Major - Major loss of function.
          • Open
          relates to

          Task - A task that needs to be done. MDEV-9295 Connector/C — embedded

          • Major - Major loss of function.
          • Open

          Task - A task that needs to be done. MDEV-37531 Move Replication sources to an `rpl` directory

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Open

          Task - A task that needs to be done. MDEV-9055 replace libmysqlclient with Connector/C

          • Major - Major loss of function.
          • Open

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              ParadoxV5 Jimmy Hú
              ParadoxV5 Jimmy Hú
              Jimmy Hú Jimmy Hú
              Sergei Golubchik Sergei Golubchik
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                Updated:

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