Everything about pg เว็บตรง
Everything about pg เว็บตรง
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If you probably did begin The brand new cluster, it's composed to shared data files and it truly is unsafe to make use of the outdated cluster. The aged cluster will have to be restored from backup in this case.
Install exactly the same extension shared item documents on The brand new standbys you mounted in the new Main cluster.
NET halt postgresql-16 Streaming replication and log-transport standby servers should be working during this shutdown so that they obtain all changes.
main PostgreSQL releases frequently incorporate new characteristics That always alter the layout from the method tables, but The inner info storage structure seldom adjustments. pg_upgrade takes advantage of this simple fact to perform rapid upgrades by developing new system tables and easily reusing the old user info information.
use connection method, would not have or do not want to use rsync, or want A better Resolution, skip the Recommendations in this part and easily recreate the standby servers as soon as pg_upgrade completes and the new Main is managing.
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information that were not linked on the first are copied from the main into the standby. (They are often modest.) This provides rapid standby updates. Unfortunately, rsync needlessly copies information connected to short term and unlogged tables mainly because these information Never normally exist on standby servers.
All failure, rebuild, and reindex situations will probably be reported by pg_upgrade when they have an effect on your set up; post-upgrade scripts to rebuild tables and indexes will be created immediately.
Create The brand new PostgreSQL supply with configure flags which can be suitable With all the outdated cluster. pg_upgrade will check pg_controldata to make sure all settings are suitable before beginning the improve.
In that circumstance You can utilize the -s option to set the socket data files in a few Listing by using a shorter route name. For security, ensure that that Listing is not really readable or writable by almost every other consumers. (This is not supported on Windows.)
the old and new cluster directories about the standby. The directory composition beneath the desired directories on the primary and standbys ought to match. consult with the rsync handbook site for specifics on specifying the remote directory, e.g.,
If the installation Listing just isn't version-specific, e.g., /usr/community/pgsql, it's important to maneuver The present PostgreSQL install directory so it doesn't interfere Along with the new PostgreSQL installation.
psql --username=postgres --file=script.sql postgres The scripts is often operate in any buy and will be deleted once they are already operate.
For Home windows people, you will need to be logged into an administrative account, after which begin a shell as the postgres user and set the appropriate path:
The brand new PostgreSQL executable directory; default will be the directory in which pg_upgrade resides; setting variable PGBINNEW
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