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Change default values for backup and replication parameters

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This changes the default values of the following parameters:

wal_level = replica
max_wal_senders = 10
max_replication_slots = 10

in order to make it possible to make a backup and set up simple
replication on the default settings, without requiring a system restart.

Discussion: https://postgr.es/m/CABUevEy4PR_EAvZEzsbF5s+V0eEvw7shJ2t-AUwbHOjT+yRb3A@mail.gmail.com

Reviewed by Peter Eisentraut. Benchmark help from Tomas Vondra.
This commit is contained in:
Magnus Hagander
2017-01-14 17:14:56 +01:00
parent 05cd12ed5b
commit f6d6d2920d
9 changed files with 21 additions and 20 deletions
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6
src/backend/utils/misc/postgresql.conf.sample
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@ -174,7 +174,7 @@
# - Settings -
#wal_level = minimal # minimal, replica, or logical
#wal_level = replica # minimal, replica, or logical
# (change requires restart)
#fsync = on # flush data to disk for crash safety
# (turning this off can cause
@ -229,12 +229,12 @@
# Set these on the master and on any standby that will send replication data.
#max_wal_senders = 0 # max number of walsender processes
#max_wal_senders = 10 # max number of walsender processes
# (change requires restart)
#wal_keep_segments = 0 # in logfile segments, 16MB each; 0 disables
#wal_sender_timeout = 60s # in milliseconds; 0 disables
#max_replication_slots = 0 # max number of replication slots
#max_replication_slots = 10 # max number of replication slots
# (change requires restart)
#track_commit_timestamp = off # collect timestamp of transaction commit
# (change requires restart)