Re: [GENERAL] Table not cleaning up drom dead tuples

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От Jeff Janes
Тема Re: [GENERAL] Table not cleaning up drom dead tuples
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Msg-id CAMkU=1wcgS5Q2kP88NBduu8zr2Jsk52HWLx_HBrZJFADyjspxQ@mail.gmail.com
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Ответ на [GENERAL] Table not cleaning up drom dead tuples  (Антон Тарабрин <tarabanton@gmail.com>)
Ответы Re: [GENERAL] Table not cleaning up drom dead tuples
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On Tue, Mar 14, 2017 at 5:09 AM, Антон Тарабрин <tarabanton@gmail.com> wrote:
Good day. It seems that we have some strange case of VACUUM malfunction and table bloating.

PostgreSQL 9.5.3

Are you using replication slots?

See this, fixed in 9.5.5:

commit de396a1cb34626619ddc6fb9dec6d12abee8b589
Author: Andres Freund <andres@anarazel.de>
Date:   Wed Aug 17 13:15:03 2016 -0700

    Properly re-initialize replication slot shared memory upon creation.

    Slot creation did not clear all fields upon creation. After start the
    memory is zeroed, but when a physical replication slot was created in
    the shared memory of a previously existing logical slot, catalog_xmin
    would not be cleared. That in turn would prevent vacuum from doing its
    duties.


Cheers,

Jeff

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