Início / dba / Perguntas / 276412
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sharadov
Asked: 2020-10-02 13:21:35 +0800 CST

Problemas de atualização do Postgres com pg_upgrade

  • 772

Estou tentando atualizar 9.5.5 para 12.3 usando pg_uprade, recebi o seguinte erro

Os tamanhos máximos de segmentos de relação pg_controldata antigos e novos são inválidos ou não correspondem

9.5.5

Blocos por segmento de grande relação: 8388608

12.3

Blocos por segmento de grande relação: 131072

8388608 blocos equivalem a 64 GB.

Eu recompilei a versão 12.3 usando as seguintes opções

./configure --prefix=/opt/pgsql/PostgreSQL-12 --with-segsize=64

saída pg_controldata 9.5.5

pg_control version number:            942
Catalog version number:               201510051
Database system identifier:           6307574991682851055
Database cluster state:               shut down
pg_control last modified:             Thu 01 Oct 2020 07:15:50 PM EDT
Latest checkpoint location:           2FB/7C000028
Prior checkpoint location:            2FB/78000098
Latest checkpoint's REDO location:    2FB/7C000028
Latest checkpoint's REDO WAL file:    00000001000002FB0000001F
Latest checkpoint's TimeLineID:       1
Latest checkpoint's PrevTimeLineID:   1
Latest checkpoint's full_page_writes: on
Latest checkpoint's NextXID:          0/130082037
Latest checkpoint's NextOID:          182620
Latest checkpoint's NextMultiXactId:  1
Latest checkpoint's NextMultiOffset:  0
Latest checkpoint's oldestXID:        1741
Latest checkpoint's oldestXID's DB:   1
Latest checkpoint's oldestActiveXID:  0
Latest checkpoint's oldestMultiXid:   1
Latest checkpoint's oldestMulti's DB: 1
Latest checkpoint's oldestCommitTsXid:0
Latest checkpoint's newestCommitTsXid:0
Time of latest checkpoint:            Thu 01 Oct 2020 07:15:50 PM EDT
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:                    hot_standby
wal_log_hints setting:                off
max_connections setting:              1000
max_worker_processes setting:         8
max_prepared_xacts setting:           0
max_locks_per_xact setting:           64
track_commit_timestamp setting:       off
Maximum data alignment:               8
Database block size:                  8192
Blocks per segment of large relation: 8388608
WAL block size:                       8192
Bytes per WAL segment:                67108864
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

saída pg_controldata 12.3

pg_control version number:            942
Catalog version number:               201510051
Database system identifier:           6307574991682851055
Database cluster state:               shut down
pg_control last modified:             Thu 01 Oct 2020 07:15:50 PM EDT
Latest checkpoint location:           2FB/7C000028
Prior checkpoint location:            2FB/78000098
Latest checkpoint's REDO location:    2FB/7C000028
Latest checkpoint's REDO WAL file:    00000001000002FB0000001F
Latest checkpoint's TimeLineID:       1
Latest checkpoint's PrevTimeLineID:   1
Latest checkpoint's full_page_writes: on
Latest checkpoint's NextXID:          0/130082037
Latest checkpoint's NextOID:          182620
Latest checkpoint's NextMultiXactId:  1
Latest checkpoint's NextMultiOffset:  0
Latest checkpoint's oldestXID:        1741
Latest checkpoint's oldestXID's DB:   1
Latest checkpoint's oldestActiveXID:  0
Latest checkpoint's oldestMultiXid:   1
Latest checkpoint's oldestMulti's DB: 1
Latest checkpoint's oldestCommitTsXid:0
Latest checkpoint's newestCommitTsXid:0
Time of latest checkpoint:            Thu 01 Oct 2020 07:15:50 PM EDT
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:                    hot_standby
wal_log_hints setting:                off
max_connections setting:              1000
max_worker_processes setting:         8
max_prepared_xacts setting:           0
max_locks_per_xact setting:           64
track_commit_timestamp setting:       off
Maximum data alignment:               8
Database block size:                  8192
Blocks per segment of large relation: 8388608
WAL block size:                       8192
Bytes per WAL segment:                67108864
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

E executei pg_upgrade novamente e obtive o mesmo erro acima. O que estou perdendo aqui?

postgresql postgresql-9.5

2 respostas

  1. Você parece ter postado a pg_controldatasaída para o PostgreSQL 9.5 duas vezes.

    De qualquer forma, você terá que configurar o PostgreSQL v12 com um tamanho de segmento de tabela não padrão:

    ./configure --prefix=/opt/pgsql/PostgreSQL-12 --with-segsize=64

    Além disso, durante initdb, você terá que especificar o tamanho do segmento WAL não padrão:

    initdb ... --wal-segsize=64 /path/to/datadir

    Em seguida pg_upgrade, deve ser bem-sucedido (se a localidade etc. corresponder).

    • 1
  2. Best Answer

    Então, depois de vários testes, encontrei o problema. Se eu executar o configure --with-segsize=64 no RHEL 6.10, o tamanho do segmento não será definido para 64 GB, mas se eu executá-lo no RHEL 7.8, será. Parece um bug com o RHEL 6.10.

    • 0

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