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Re: Can I skip function ResolveRecoveryConflictWithSnapshot ifsetting hot_standby_feedback=on all the time - Mailing list pgsql-hackers

From Robert Haas
Subject Re: Can I skip function ResolveRecoveryConflictWithSnapshot ifsetting hot_standby_feedback=on all the time
Date
Msg-id CA+TgmoZ+wUW2a2_m788i22o_88jmPF2O1ysH8EmJk9om0GLNiQ@mail.gmail.com
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In response to Can I skip function ResolveRecoveryConflictWithSnapshot if setting hot_standby_feedback=on all the time  ("范孝剑(康贤)" <funnyxj.fxj@alibaba-inc.com>)
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On Mon, Nov 19, 2018 at 3:53 AM 范孝剑(康贤) <funnyxj.fxj@alibaba-inc.com> wrote:
> Hello,
> Can I skip function ResolveRecoveryConflictWithSnapshot if setting hot_standby_feedback=on all the time?
> As I know,  function ResolveRecoveryConflictWithSnapshot is used for resolving conflicts once master cleans dead
tuples.But if I set hot_standby_feedback to on, it will not appear conflicts, so I can skip to execute function
ResolveRecoveryConflictWithSnapshot,am I right? 

If I remember correctly, even with hot_standby_feedback=on, you could
still get conflicts if the connection between the master and the
standby is temporarily broken and then reestablished.

--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company

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