Search Postgresql Archives

Re: Decreasing WAL size effects

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

 



Tom Lane wrote:
> Greg Smith <gsmith@xxxxxxxxxxxxx> writes:
> > That pushes the problem of writing a little chunk of code that reads only 
> > the right amount of data and doesn't bother compressing the rest onto the 
> > person writing the archive command.  Seems to me that leads back towards 
> > wanting to bundle a contrib module with a good implementation of that with 
> > the software.  The whole tail clearing bit is in the same situation 
> > pg_standby was circa 8.2:  the software is available, and it works, but it 
> > seems kind of sketchy to those not familiar with the source of the code. 
> > Bundling it into the software as a contrib module just makes that problem 
> > go away for end-users.
> 
> The real reason not to put that functionality into core (or even
> contrib) is that it's a stopgap kluge.  What the people who want this
> functionality *really* want is continuous (streaming) log-shipping, not
> WAL-segment-at-a-time shipping.  Putting functionality like that into
> core is infinitely more interesting than putting band-aids on a
> segmented approach.

Well, I realize we want streaming archive logs, but there are still
going to be people who are archiving for point-in-time recovery, and I
assume a good number of them are going to compress their WAL files to
save space, because they have to store a lot of them.  Wouldn't zeroing
out the trailing byte of WAL still help those people?

-- 
  Bruce Momjian  <bruce@xxxxxxxxxx>        http://momjian.us
  EnterpriseDB                             http://enterprisedb.com

  + If your life is a hard drive, Christ can be your backup. +

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

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Index of Archives]     [Postgresql Jobs]     [Postgresql Admin]     [Postgresql Performance]     [Linux Clusters]     [PHP Home]     [PHP on Windows]     [Kernel Newbies]     [PHP Classes]     [PHP Books]     [PHP Databases]     [Postgresql & PHP]     [Yosemite]
  Powered by Linux