pgsql: Include previous TLI in end-of-recovery and shutdown checkpoint
Include previous TLI in end-of-recovery and shutdown checkpoint records.
This isn't used for anything but a sanity check at the moment, but it could
be highly valuable for debugging purposes. It could also be used to recreate
timeline history by traversing WAL, which seems useful.
Branch
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master
Details
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http://git.postgresql.org/pg/commitdiff/7803e9327db3788f68d820c19f4081afb79edd12
Modified Files
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src/backend/access/rmgrdesc/xlogdesc.c | 7 +++--
src/backend/access/transam/xlog.c | 36 ++++++++++++++++++++++++++++--
src/bin/pg_controldata/pg_controldata.c | 2 +
src/bin/pg_resetxlog/pg_resetxlog.c | 4 +++
src/include/access/xlog_internal.h | 3 +-
src/include/catalog/pg_control.h | 4 ++-
6 files changed, 48 insertions(+), 8 deletions(-)
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Heikki Linnakangas <heikki.linnakangas@iki.fi> writes:
Include previous TLI in end-of-recovery and shutdown checkpoint records.
Hm ... should this patch have included a WAL format version bump
(XLOG_PAGE_MAGIC)?
It may not matter too much, since we already have a different value
from 9.2 there.
regards, tom lane
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On 11.02.2013 18:28, Tom Lane wrote:
Heikki Linnakangas<heikki.linnakangas@iki.fi> writes:
Include previous TLI in end-of-recovery and shutdown checkpoint records.
Hm ... should this patch have included a WAL format version bump
(XLOG_PAGE_MAGIC)?
I bumped PG_CONTROL_VERSION, that forces an initdb too.
- Heikki
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Heikki Linnakangas <hlinnaka@iki.fi> writes:
On 11.02.2013 18:28, Tom Lane wrote:
Hm ... should this patch have included a WAL format version bump
(XLOG_PAGE_MAGIC)?
I bumped PG_CONTROL_VERSION, that forces an initdb too.
Right, but that data isn't so easily available to WAL-stream consumers.
regards, tom lane
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