On 05/10/2015 10:30 AM, Robert Haas wrote:
2. We have some logic that causes autovacuum to run in spite of
autovacuum=off when wraparound threatens. My commit
53bb309d2d5a9432d2602c93ed18e58bd2924e15 provided most of the
anti-wraparound protections for multixact members that exist for
multixact IDs and for regular XIDs, but this remains an outstanding
issue. I believe I know how to fix this, and will work up an
appropriate patch based on some of Thomas's earlier work.
I believe autovacuum=off is fortunately uncommon, but certainly getting
this issue fixed is a good idea.
Right.
I suspect it's quite a bit more common than many people imagine.
cheers
andrew
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