Обсуждение: pg_resetxlog display bogosity
I just noticed that if I specify pg_resetxlog a timeline ID with the -l
switch, it will display this value as "TimeLineID of latest checkpoint".
Which is not really the truth.
I wonder if pg_resetxlog should display the actual pg_control values in
one section, and the values that would be set after a reset in a
different section, so that it is extra clear. So it would look like
pg_control values:
pg_control version number: 903Catalog version number: 201004261Database system identifier:
5509100787461288958Latest checkpoint's TimeLineID: 1Latest checkpoint's NextXID: 0/667Latest
checkpoint'sNextOID: 16390Latest checkpoint's NextMultiXactId: 1Latest checkpoint's NextMultiOffset: 0Latest
checkpoint'soldestXID: 654Latest checkpoint's oldestXID's DB: 1Latest checkpoint's oldestActiveXID: 0Maximum
dataalignment: 8Database block size: 8192Blocks per segment of large relation: 131072WAL
blocksize: 8192Bytes per WAL segment: 16777216Maximum length of identifiers:
64Maximum columns in an index: 32Maximum size of a TOAST chunk: 1996Date/time type storage:
64-bit integersFloat4 argument passing: by valueFloat8 argument passing: by value
Values to be used after reset:
First log file ID: 14First log file segment: 28TimeLineID:
57
(I'd also like to point out that the "Latest checkpoint's" phrasing is awkward
and cumbersome for translated output, but I'm refraining from suggest a
reword because it'd complicate matters for programs that try to read the
output)
--
Álvaro Herrera <alvherre@alvh.no-ip.org>
Alvaro Herrera <alvherre@alvh.no-ip.org> writes:
> I wonder if pg_resetxlog should display the actual pg_control values in
> one section, and the values that would be set after a reset in a
> different section, so that it is extra clear.
Seems reasonable, although I'd suggest labeling the first section as
"Current pg_control values" or some such, if you want clarity.
regards, tom lane
Is this a TODO item? --------------------------------------------------------------------------- Alvaro Herrera wrote: > I just noticed that if I specify pg_resetxlog a timeline ID with the -l > switch, it will display this value as "TimeLineID of latest checkpoint". > Which is not really the truth. > > I wonder if pg_resetxlog should display the actual pg_control values in > one section, and the values that would be set after a reset in a > different section, so that it is extra clear. So it would look like > > pg_control values: > > pg_control version number: 903 > Catalog version number: 201004261 > Database system identifier: 5509100787461288958 > Latest checkpoint's TimeLineID: 1 > Latest checkpoint's NextXID: 0/667 > Latest checkpoint's NextOID: 16390 > Latest checkpoint's NextMultiXactId: 1 > Latest checkpoint's NextMultiOffset: 0 > Latest checkpoint's oldestXID: 654 > Latest checkpoint's oldestXID's DB: 1 > Latest checkpoint's oldestActiveXID: 0 > Maximum data alignment: 8 > Database block size: 8192 > Blocks per segment of large relation: 131072 > WAL block size: 8192 > Bytes per WAL segment: 16777216 > Maximum length of identifiers: 64 > Maximum columns in an index: 32 > Maximum size of a TOAST chunk: 1996 > Date/time type storage: 64-bit integers > Float4 argument passing: by value > Float8 argument passing: by value > > Values to be used after reset: > > First log file ID: 14 > First log file segment: 28 > TimeLineID: 57 > > > (I'd also like to point out that the "Latest checkpoint's" phrasing is awkward > and cumbersome for translated output, but I'm refraining from suggest a > reword because it'd complicate matters for programs that try to read the > output) > > -- > Álvaro Herrera <alvherre@alvh.no-ip.org> > > -- > Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) > To make changes to your subscription: > http://www.postgresql.org/mailpref/pgsql-hackers -- Bruce Momjian <bruce@momjian.us> http://momjian.us EnterpriseDB http://enterprisedb.com + It's impossible for everything to be true. +
Excerpts from Bruce Momjian's message of vie feb 18 23:41:18 -0300 2011: > > Is this a TODO item? Only to me, it seems. -- Álvaro Herrera <alvherre@commandprompt.com> The PostgreSQL Company - Command Prompt, Inc. PostgreSQL Replication, Consulting, Custom Development, 24x7 support
2011/2/22 Alvaro Herrera <alvherre@commandprompt.com>: > Excerpts from Bruce Momjian's message of vie feb 18 23:41:18 -0300 2011: >> >> Is this a TODO item? > > Only to me, it seems. looks like you suggestion get positive impact so far :-) +1 to fix the bogosity output rather than waiting for 9.2 via a todo .... > > > -- > Álvaro Herrera <alvherre@commandprompt.com> > The PostgreSQL Company - Command Prompt, Inc. > PostgreSQL Replication, Consulting, Custom Development, 24x7 support > > -- > Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) > To make changes to your subscription: > http://www.postgresql.org/mailpref/pgsql-hackers > -- Cédric Villemain 2ndQuadrant http://2ndQuadrant.fr/ PostgreSQL : Expertise, Formation et Support