Alexander Motin f72fd378c8 Defer async destroys on pool import ... We've observed a number of cases when pool import stuck for many minutes due to large async destroy trying to load DDT or BRT from HDD pool. While proper destroy dosage is a separate problem, lets give import process a chance to complete before that at all. It may be not enough if there is a lot of ZIL to replay, but that is harder to cover, since those are in separate syscalls. Code investigation shown that we already have this mechanism used for scrub/resilver, so this patch converts SCAN_IMPORT_WAIT_TXGS into a tunable and applies it to async destroys also. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Alexander Motin <alexander.motin@TrueNAS.com> Closes #18033		2025-12-11 18:44:46 -08:00
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spl.4	manuals: Audit/bump dates for last content change	2025-08-28 16:26:16 -07:00
zfs.4	Defer async destroys on pool import	2025-12-11 18:44:46 -08:00