Re: Question on Hot Standby in PostgreSQL

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Alex Williams wrote:
> Concerning these two params below, when using hot_standby_feedback,  what would you set them if you
> had the situation where you had queries constantly running on the standby, some quick and some long,
> practically all day/night, everyday?
> 
> max_standby_archive_delay (integer)
> max_standby_streaming_delay (integer)

> Should I still keep them as -1 (infinite)?

I'd say set them both to 0.

If you have hot_standby_feedback=on, the primary will not remove any rows still
needed on the standby, so there should never be a need to delay WAL application.

The drawback is that you may get considerable bloat on the primary if many
DELETE/UPDATE operation are going on and queries on the standby take a long time.

Yours,
Laurenz Albe

-- 
Sent via pgsql-admin mailing list (pgsql-admin@xxxxxxxxxxxxxx)
To make changes to your subscription:
http://www.postgresql.org/mailpref/pgsql-admin




[Index of Archives]     [KVM ARM]     [KVM ia64]     [KVM ppc]     [Virtualization Tools]     [Spice Development]     [Libvirt]     [Libvirt Users]     [Linux USB Devel]     [Linux Audio Users]     [Yosemite Questions]     [Linux Kernel]     [Linux SCSI]     [XFree86]

  Powered by Linux