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Re: found xmin from before relfrozenxid on pg_catalog.pg_authid - Mailing list pgsql-general

From Jeremy Finzel
Subject Re: found xmin from before relfrozenxid on pg_catalog.pg_authid
Date
Msg-id CAMa1XUgRvkUeyGmf3=DdqHOhF1geAVJcRUgEmcryVzBcZ6PMaA@mail.gmail.com
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In response to Re: found xmin from before relfrozenxid on pg_catalog.pg_authid  (Alvaro Herrera <alvherre@alvh.no-ip.org>)
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pg_control version number:            942
Catalog version number:               201510051
Database system identifier:           6351536019599012028
Database cluster state:               in production
pg_control last modified:             Mon 19 Mar 2018 12:56:10 PM CDT
Latest checkpoint location:           262BE/FE96240
Prior checkpoint location:            262BA/623D5E40
Latest checkpoint's REDO location:    262BA/F5499E98
Latest checkpoint's REDO WAL file:    00000001000262BA000000F5
Latest checkpoint's TimeLineID:       1
Latest checkpoint's PrevTimeLineID:   1
Latest checkpoint's full_page_writes: on
Latest checkpoint's NextXID:          16/3132524419
Latest checkpoint's NextOID:          1090653331
Latest checkpoint's NextMultiXactId:  2142
Latest checkpoint's NextMultiOffset:  5235
Latest checkpoint's oldestXID:        1829964553
Latest checkpoint's oldestXID's DB:   12376
Latest checkpoint's oldestActiveXID:  3131774441
Latest checkpoint's oldestMultiXid:   1
Latest checkpoint's oldestMulti's DB: 16400
Latest checkpoint's oldestCommitTsXid:1829964553
Latest checkpoint's newestCommitTsXid:3132524418
Time of latest checkpoint:            Mon 19 Mar 2018 12:54:08 PM CDT
Fake LSN counter for unlogged rels:   0/1
Minimum recovery ending location:     0/0
Min recovery ending loc's timeline:   0
Backup start location:                0/0
Backup end location:                  0/0
End-of-backup record required:        no
wal_level setting:                    logical
wal_log_hints setting:                off
max_connections setting:              2000
max_worker_processes setting:         10
max_prepared_xacts setting:           0
max_locks_per_xact setting:           64
track_commit_timestamp setting:       on
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
Size of a large-object chunk:         2048
Date/time type storage:               64-bit integers
Float4 argument passing:              by value
Float8 argument passing:              by value
Data page checksum version:           0

On Mon, Mar 19, 2018 at 12:46 PM, Alvaro Herrera <alvherre@alvh.no-ip.org> wrote:
Jeremy Finzel wrote:
> Getting some concerning errors in one of our databases that is on 9.5.11,
> on autovacuum from template0 database pg_authid and pg_auth_members.  I
> only saw some notes on the list about this error related to materialized
> views.  FWIW, we did use pg_upgrade to upgrade this database from 9.4 to
> 9.5.  Here is an example:
>
> 2018-03-19 12:08:33.946 CDT,,,14892,,5aafee91.3a2c,1,,2018-03-19 12:08:33
> CDT,59/340951,0,ERROR,XX001,"found xmin 2906288382 from before relfrozenxid
> 740087784",,,,,"automatic vacuum of table
> ""template0.pg_catalog.pg_authid""",,,,""

Can you please supply output of pg_controldata?

--
Álvaro Herrera                https://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services

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