Recent versions of MariaDB (10.2 onwards) require use of an unbundled SSL library. While these versions will build just fine on our CentOS supported platforms, they cannot be built on macOS without adding an unbundled SSL library as a platform prereq.
GnuTLS is preferred by MariaDB, and seems the path of least resistance (indeed, for those running homebrew a brew install gnutls is all that is needed to make these versions of MariaDB buildable.)
There is recent pressure to modernize our MariaDB components because of platform compatibility issues concerning the DAX service containers that are being built for use on clusters at CC-IN2P3 and within the PDAC and NCSA. This RFC proposes that GnuTLS be added as a platform prereq on macOS, so that MariaDB components may be upgraded.
- is triggering
DM-13788 Remove mariadbclient dependency from daf_persistence
DM-13636 Document GnuTLS as a MacOS prerequisite
RFC-464 Remove untested database code from obs_sdss and obs_lsstSim
- relates to
DM-2948 Remove explicit buildbot dependency on datarel
All triggered work has been completed but I'm unhappy that we did not document the macOS GnuTLS requirement on Qserv.
DM-13636 was closed as INVALID.
Fritz Mueller should we be documenting this or should we say that we aren't even trying to build Qserv on macOS? (although in
RFC-521 there is an attempt to bring mariadb back into the Mac Jenkins builds).
I got tired of working the fine points of this, and am quite satisfied to claim that we will no longer even try to build Qserv on macOS (where it is, after all, useless for any practical purpose anyway).
The rest of the stack may have to take this back up again if mariadb re-enters the stack, but that will be between the stack developers and the CI maintainers and need not involve Qserv.
This was not implemented in the way intended - though the end result was acceptable.
Fritz Mueller it looks like lsst_distrib and lsst_sims no longer need mariadbclient. I think that means you are cleared to update so long as mariadb builds on the jenkins instances and you update the docs to say that the few people building the eups package of mariadb[client] need to do something extra on Mac.