DB Backup from WAL Slave

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От basti
Тема DB Backup from WAL Slave
Дата
Msg-id c5b4fbe7-cd5b-b703-8304-119415572c9a@unix-solution.de
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Ответы Re: DB Backup from WAL Slave
Список pgsql-general
Hello,

we have a db master and a slave.

master conf:

wal_level = replica
max_wal_senders = 5
wal_keep_segments = 100
archive_mode    = on
archive_command = 'rsync -a %p -e "ssh -i
/var/lib/postgresql/.ssh/id_rsa"
postgres@slave:/var/lib/postgresql/9.6/wals/master/%f </dev/null'

slave conf:

# replication
hot_standby = on

# pg_dump: Error message from server: ERROR:  canceling statement due to
conflict with recovery
# DETAIL:  User was holding a relation lock for too long.
#
https://www.postgresql.org/message-id/CADp-Sm6if-z0NbsxrJwPBQDQNt6AQJpbbagHbWyGrN7zyYZdCA%40mail.gmail.com
max_standby_streaming_delay = 300000


The slave is not used as read-only
But as docu say
(https://www.postgresql.org/docs/9.6/static/runtime-config-wal.html)
wal_level = archive is mapped to replica

How can I do an backup with pg_dumpall from slave?

Best Regards,



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