| From: | Simon Riggs <simon(at)2ndQuadrant(dot)com> |
|---|---|
| To: | Magnus Hagander <magnus(at)hagander(dot)net> |
| Cc: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: walprotocol.h vs frontends |
| Date: | 2011-08-16 12:58:19 |
| Message-ID: | CA+U5nMJJqn92yfZXupZPDBUvyWVjg9+6VauOB1sV+PLYui77Tw@mail.gmail.com |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-hackers |
On Tue, Aug 16, 2011 at 9:35 AM, Magnus Hagander <magnus(at)hagander(dot)net> wrote:
>> So right now what we do is allow a single packet to span multiple
>> files, but since MAX_SEND_SIZE is 128KB it will always be smaller than
>> a single file, so we can only ever span two files at most.
>
> Unless someone has tweaked their xlog segment size to insane values.
We should limit MAX_SEND_SIZE to be same or less than WAL_SEGMENT_SIZE.
We gain nothing by continuing to allow the existing code to work in
the way it does.
--
Simon Riggs http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Alexander Korotkov | 2011-08-16 13:19:14 | Re: WIP: Fast GiST index build |
| Previous Message | Simon Riggs | 2011-08-16 12:54:45 | Re: pg_stat_replication vs StandbyReplyMessage |