On Mon, Nov 20, 2023 at 4:43 PM Robert Haas <robertmh...@gmail.com> wrote:
>
> On Fri, Nov 17, 2023 at 5:01 AM Alvaro Herrera <alvhe...@alvh.no-ip.org> 
> wrote:
> > I made a pass over pg_combinebackup for NLS.  I propose the attached
> > patch.
>
> This doesn't quite compile for me so I changed a few things and
> incorporated it. Hopefully I didn't mess anything up.
>
> Here's v11.
[..]

> I wish I had better ideas about how to thoroughly test this. [..]

Hopefully the below add some confidence, I've done some further
quick(?) checks today and results are good:

make check-world #GOOD
test_full_pri__incr_stby__restore_on_pri.sh #GOOD
test_full_pri__incr_stby__restore_on_stby.sh #GOOD*
test_full_stby__incr_stby__restore_on_pri.sh #GOOD
test_full_stby__incr_stby__restore_on_stby.sh #GOOD*
test_many_incrementals_dbcreate.sh #GOOD
test_many_incrementals.sh #GOOD
test_multixact.sh #GOOD
test_pending_2pc.sh #GOOD
test_reindex_and_vacuum_full.sh #GOOD
test_truncaterollback.sh #GOOD
test_unlogged_table.sh #GOOD
test_across_wallevelminimal.sh # GOOD(expected failure, that
walsummaries are off during walminimal and incremental cannot be
taken--> full needs to be taken after wal_level=minimal)

CFbot failed on two hosts this time, I haven't looked at the details
yet (https://cirrus-ci.com/task/6425149646307328 -> end of EOL? ->
LOG:  WAL summarizer process (PID 71511) was terminated by signal 6:
Aborted?)

The remaining test idea is to have a longer running DB under stress
test in more real-world conditions and try to recover using chained
incremental backups (one such test was carried out on patchset v6 and
the result was good back then).

-J.


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