New Step by Step Map For pg เว็บตรง
New Step by Step Map For pg เว็บตรง
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By default, pg_upgrade will look forward to all files on the upgraded cluster to get created safely and securely to disk. This option will cause pg_upgrade to return without waiting around, which is faster, but implies that a subsequent running process crash can go away the data directory corrupt. Generally, this feature is useful for testing but really should not be employed over a generation set up.
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NET quit postgresql-16 Streaming replication and log-transport standby servers will have to be functioning in the course of this shutdown so that they acquire all modifications.
The --Work solution will allow multiple CPU cores to be used for copying/linking of files and to dump and restore database schemas in parallel; a very good spot to commence is the maximum of the quantity of CPU cores and tablespaces.
When employing website link method, standby servers could be rapidly upgraded applying rsync. to perform this, from the directory on the principal server which is over the outdated and new database cluster directories, run this over the
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data files which were not joined on the first are copied from the principal towards the standby. (They are often little.) This gives swift standby upgrades. regrettably, rsync needlessly copies information connected with short-term and unlogged tables because these data files You should website not Commonly exist on standby servers.
You should utilize exactly the same port range for each clusters when doing an upgrade because the aged and new clusters will not be working at the same time. nevertheless, when examining an previous running server, the outdated and new port numbers need to be various.
Make the new PostgreSQL supply with configure flags which might be compatible With all the old cluster. pg_upgrade will check pg_controldata to be sure all configurations are compatible before beginning the enhance.
In that situation you can use the -s choice to set the socket data files in some Listing having a shorter path title. For safety, ensure that that directory just isn't readable or writable by almost every other users. (This is not supported on Windows.)
the aged and new cluster directories to the standby. The directory construction beneath the specified directories on the first and standbys have to match. check with the rsync guide page for details on specifying the remote Listing, e.g.,
If your set up Listing is just not Edition-unique, e.g., /usr/local/pgsql, it is necessary to maneuver The existing PostgreSQL set up directory so it does not interfere Using the new PostgreSQL installation.
psql --username=postgres --file=script.sql postgres The scripts is usually run in almost any purchase and can be deleted at the time they happen to be run.
For Windows people, you must be logged into an administrative account, and afterwards begin a shell given that the postgres user and set the proper route:
The brand new PostgreSQL executable directory; default is the directory in which pg_upgrade resides; surroundings variable PGBINNEW
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