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  1. MariaDB Server
  2. MDEV-6617

Improve Galera scripts

        Details

        • Type: Bug
        • Status: Closed
        • Priority: Minor
        • Resolution: Won't Fix
        • Affects Version/s: 5.5.38-galera, 10.0.12-galera
        • Fix Version/s: 5.5.41-galera
        • Component/s: Galera, Galera SST
        • Labels:

          Description

          Many Galera scripts assumes that my_print_defaults and other MariaDB
          binaries are in PATH. This might not be true.

          • We can't assume that "mysql" is in the path. We have to search for this like
            we do with my_print_defaults !
          • Checking for version number doesn't guarantee that the binaries are
            compiled with galera.
            Instead you should check if a binary supports any of the required wresp
            options.

          You can do this with:
          mysql --test-some-option --version
          This will fail with an error if the option is not supported.

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                nirbhay_c Nirbhay Choubey added a comment -

                Hi Jan Lindström!

                • Besides PATH, the only place we look under for client tools and SST scripts is $basedir/bin.
                  This path, however, is already prepended by (wsrep-)mysqld before it invokes SST scripts.
                • Regarding "binaries compiled with wsrep" : Since the state transfer is an automatic process
                  triggered by server, I don't think any explicit check is needed for wsrep-support.

                Said that, I do not see there is anything to work on in this regard.

                Show
                nirbhay_c Nirbhay Choubey added a comment - Hi Jan Lindström ! Besides PATH, the only place we look under for client tools and SST scripts is $basedir/bin. This path, however, is already prepended by (wsrep-)mysqld before it invokes SST scripts. Regarding "binaries compiled with wsrep" : Since the state transfer is an automatic process triggered by server, I don't think any explicit check is needed for wsrep-support. Said that, I do not see there is anything to work on in this regard.
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                nirbhay_c Nirbhay Choubey added a comment -

                See my comment above.

                Show
                nirbhay_c Nirbhay Choubey added a comment - See my comment above.

                  People

                  • Assignee:
                    nirbhay_c Nirbhay Choubey
                    Reporter:
                    jplindst Jan Lindström
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                    Dates

                    • Created:
                      Updated:
                      Resolved: