Re: Map WAL segment files on PMEM as WAL buffers

Wed, 19 Jan 2022 21:56:13 -0800 

Hi Justin,

Here is patchset v8. It will have "make check-world" and Cirrus to
pass. Would you try this one?

The v8 squashes some patches in v7 into related ones, and adds the
following patches:

- v8-0003: Add wal_pmem_map to postgresql.conf.sample. It also helps v8-0011.

- v8-0009: Fix wrong handling of missingContrecPtr for
test/recovery/t/026 to pass. It is the cause of the error. Thanks for
your report.

- v8-0010 and v8-0011: Each of the two is for CI only. v8-0010 adds
--with-libpmem and v8-0011 enables "wal_pmem_map = on". Please note
that, unlike your suggestion, in my patchset PMEM_IS_PMEM_FORCE=1 will
be given as an environment variable in .cirrus.yml and "wal_pmem_map =
on" will be given by initdb.

Regards,
Takashi

-- 
Takashi Menjo <takashi.me...@gmail.com>

Attachment: v8-0001-Add-with-libpmem-option-for-PMEM-support.patch
Description: Binary data

Attachment: v8-0002-Add-wal_pmem_map-to-GUC.patch
Description: Binary data

Attachment: v8-0005-Map-WAL-segment-files-on-PMEM-as-WAL-buffers.patch
Description: Binary data

Attachment: v8-0003-Add-wal_pmem_map-to-postgresql.conf.sample.patch
Description: Binary data

Attachment: v8-0004-Export-InstallXLogFileSegment.patch
Description: Binary data

Attachment: v8-0007-Update-document.patch
Description: Binary data

Attachment: v8-0008-Preallocate-and-initialize-more-WAL-if-wal_pmem_m.patch
Description: Binary data

Attachment: v8-0006-WAL-statistics-in-cases-of-wal_pmem_map-true.patch
Description: Binary data

Attachment: v8-0009-Fix-wrong-handling-of-missingContrecPtr.patch
Description: Binary data

Attachment: v8-0011-For-CI-only-Modify-initdb-for-wal_pmem_map-on.patch
Description: Binary data

Attachment: v8-0010-For-CI-only-Setup-Cirrus-CI-for-with-libpmem.patch
Description: Binary data

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