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In 'always' mode, the standby independently archives all files it receives from the primary. Original patch by Fujii Masao, docs and review by me.
…very. After the archiver dies, postmaster tries to start a new one immediately. But previously this could happen only while server was running normally even though archiving was enabled always (i.e., archive_mode was set to always). So the archiver running during recovery could not restart soon after it died. This is an oversight in commit ffd3774. This commit changes reaper(), postmaster's signal handler to cleanup after a child process dies, so that it tries to a new archiver even during recovery if necessary. Patch by me. Review by Alvaro Herrera.
In the previous coding, skipped pages were mostly zeroes, but they still had valid WAL page headers. That makes them very much less compressible than an unbroken string of zeroes would be --- about 10X worse for bzip2 compression, for instance. We don't need those headers, so tweak the logic so that we zero them out. Chapman Flack, reviewed by Daniel Gustafsson Discussion: https://postgr.es/m/579297F8.7020107@anastigmatix.net Backport of 4a33bb5
InnerLife0
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RekGRpth
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Mar 4, 2026
Update if condition from '-v' to '-z' Task: ADBDEV-9294
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