| From: | Andrew Dunstan <andrew(at)dunslane(dot)net> |
|---|---|
| To: | Robert Haas <robertmhaas(at)gmail(dot)com>, Alvaro Herrera <alvherre(at)2ndquadrant(dot)com> |
| Cc: | "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: multixacts woes |
| Date: | 2015-05-10 18:31:52 |
| Message-ID: | 554FA418.5070603@dunslane.net |
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| Thread: | |
| Lists: | pgsql-hackers |
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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