November 2019
Beginner to intermediate
470 pages
11h 59m
English
Content preview from Mastering PostgreSQL 12 - Third Edition
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Cleaning up the transaction log archive
So far, data is being written to the archive all of the time and no attention has been paid to cleaning out the archive again to free up space in the filesystem. PostgreSQL cannot do this job for us because it has no idea whether we want to use the archive again. Therefore, we are in charge of cleaning up the transaction log. Of course, we can also use a backup tool—however, it is important to know that PostgreSQL has no chance of doing the cleanup for us.
Suppose we want to clean up an old transaction log that is not needed anymore. Maybe we want to keep several base backups around and clean out all transaction logs that won't be needed anymore to restore one of those backups.
In this case, the pg_archivecleanup ...
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