Details
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Bug
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Status: Closed (View Workflow)
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Minor
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Resolution: Fixed
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None
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None
Description
I have been trying to turn off syncing to disk in my testing-only setup and found out this is supposed to be done with the --disable-sync-sys option. As far as I can tell this was introduced a long time ago and specifically to fit this case (see Revision #2891.1.5).
So if this was not deprecated/removed somehow (which I would hope would be mentioned in the docs) I think this is an error.
I already asked in the Docker image repository whether this could be due to how the image is prepared, but they assured me, that they do not disable any such settings.
docker run --rm -e MYSQL_ROOT_PASSWORD=my-secret-pw mariadb:10.3 --disable-sync-sys
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ERROR: mysqld failed while attempting to check config
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command was: "mysqld --disable-sync-sys --verbose --help --log-bin-index=/tmp/tmp.tk2GTl2LRR"
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2019-02-19 12:37:29 0 [Note] Plugin 'FEEDBACK' is disabled.
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2019-02-19 12:37:29 0 [Warning] Could not open mysql.plugin table. Some options may be missing from the help text
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2019-02-19 12:37:29 0 [ERROR] mysqld: unknown option '--disable-sync-sys'
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2019-02-19 12:37:29 0 [ERROR] Aborting
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I have tested with older versions as well but the oldest I found is 5.5 and it is not working there either:
docker run --rm -e MYSQL_ROOT_PASSWORD=my-secret-pw mariadb:5.5 --disable-sync-sys
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ERROR: mysqld failed while attempting to check config
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command was: "mysqld --disable-sync-sys --verbose --help --log-bin-index=/tmp/tmp.XtPsrUyUkY"
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190221 15:13:01 [Note] Plugin 'FEEDBACK' is disabled.
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190221 15:13:01 [Warning] Could not open mysql.plugin table. Some options may be missing from the help text
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190221 15:13:01 [ERROR] mysqld: unknown option '--disable-sync-sys'
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190221 15:13:01 [ERROR] Aborting
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Using --sync-sys=0 is not working either.
I have also found out that more of the debug options are not recognized in the same manner.
When searching around here I found a lot of issues reported around 2010 were using these options, but then it stopped.
Commit that introduced these options: https://github.com/MariaDB/server/commit/12648015b322e885923f87d919c07529423a0eca