Re: pg_basebackup for streaming base backups - Mailing list pgsql-hackers

From Bruce Momjian
Subject Re: pg_basebackup for streaming base backups
Date
Msg-id 201101201515.p0KFFbJ16538@momjian.us
Whole thread Raw
In response to Re: pg_basebackup for streaming base backups  (Robert Haas <robertmhaas@gmail.com>)
Responses Re: pg_basebackup for streaming base backups
List pgsql-hackers
Robert Haas wrote:
> On Thu, Jan 20, 2011 at 10:01 AM, Bruce Momjian <bruce@momjian.us> wrote:
> > Magnus Hagander wrote:
> >> On Mon, Jan 17, 2011 at 16:27, Simon Riggs <simon@2ndquadrant.com> wrote:
> >> > On Mon, 2011-01-17 at 16:20 +0100, Magnus Hagander wrote:
> >> >> On Mon, Jan 17, 2011 at 16:18, Robert Haas <robertmhaas@gmail.com> wrote:
> >> >> > On Mon, Jan 17, 2011 at 8:55 AM, Magnus Hagander <magnus@hagander.net> wrote:
> >> >> >> Hmm. I don't like those names at all :(
> >> >> >
> >> >> > I agree. ?I don't think your original names are bad, as long as
> >> >> > they're well-documented. ?I sympathize with Simon's desire to make it
> >> >> > clear that these use the replication framework, but I really don't
> >> >> > want the command names to be that long.
> >> >>
> >> >> Actually, after some IM chats, I think pg_streamrecv should be
> >> >> renamed, probably to pg_walstream (or pg_logstream, but pg_walstream
> >> >> is a lot more specific than that)
> >> >
> >> > pg_stream_log
> >> > pg_stream_backup
> >>
> >> Those seem better.
> >>
> >> Tom, would those solve your concerns about it being clear which side
> >> they are on? Or do you think you'd still risk reading them as the
> >> sending side?
> >
> > It seems pg_create_backup would be the most natural because we already
> > have pg_start_backup and pg_stop_backup.
> 
> Uh, wow.  That's really mixing apples and oranges.

I read the description as:

+    You can also use the <xref linkend="app-pgbasebackup"> tool to take
+    the backup, instead of manually copying the files. This tool will take
+    care of the <function>pg_start_backup()</>, copy and
+    <function>pg_stop_backup()</> steps automatically, and transfers the
+    backup over a regular <productname>PostgreSQL</productname> connection
+    using the replication protocol, instead of requiring filesystem level
+    access.

so I thought, well it does pg_start_backup and pg_stop_backup, and also
creates the data directory.

--  Bruce Momjian  <bruce@momjian.us>        http://momjian.us EnterpriseDB
http://enterprisedb.com
 + It's impossible for everything to be true. +


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