Horton

RE: [PoC] pg_upgrade: allow to upgrade publisher node

Hayato Kuroda (Fujitsu) <kuroda.hayato@fujitsu.com>

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From: "Hayato Kuroda (Fujitsu)" <kuroda.hayato@fujitsu.com>
To: 'Amit Kapila' <amit.kapila16@gmail.com>
Cc: "Zhijie Hou (Fujitsu)" <houzj.fnst@fujitsu.com>, Peter Smith <smithpb2250@gmail.com>, PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>, Bruce Momjian <bruce@momjian.us>, Julien Rouhaud <rjuju123@gmail.com>, vignesh C <vignesh21@gmail.com>, Masahiko Sawada <sawada.mshk@gmail.com>, Dilip Kumar <dilipbalaut@gmail.com>
Date: 2023-09-11T13:21:47Z
Lists: pgsql-hackers 
Dear Amit,

Thank you for giving a suggestion!

> >
> > >  2. Why get_old_cluster_logical_slot_infos() need to use
> > > pg_malloc_array whereas for similar stuff get_rel_infos() use
> > > pg_malloc()?
> >
> > They did a same thing. I used pg_malloc_array() macro to keep the code
> > within 80 columns.
> >
> 
> I think it is better to be consistent with the existing code in this
> case. Also, see, if the usage in get_loadable_libraries() can also be
> changed back to use pg_malloc().

Fixed as you said. The line becomes too long, so a variable was newly introduced.

Best Regards,
Hayato Kuroda
FUJITSU LIMITED

Commits

  1. Fix issues in binary_upgrade_logical_slot_has_caught_up().

  2. Fix a random failure in 003_logical_slots.pl.

  3. Fix a test in 003_logical_slots.

  4. Fix uninitialized slot array access during the upgrade.

  5. Fix the test 003_logical_slots.

  6. Commit b195e6d482 forgot to update meson.build.

  7. Use shorter file names in the upgrade logical slots test.

  8. Migrate logical slots to the new node during an upgrade.

  9. Flush logical slots to disk during a shutdown checkpoint if required.

  10. Prevent possibility of panics during shutdown checkpoint.