Heikki Linnakangas <heikki.linnakan...@enterprisedb.com> writes:
> Hmm, that's not possible for the 'tar' output, but would work for 'dir' 
> output. Another similar idea would be to withhold the control file in 
> memory until the end of backup, and append it to the output as last. The 
> backup can't be restored until the control file is written out.

> That won't protect from more complicated scenarios, like if you take the 
> backup without the -x flag, and copy some but not all of the required 
> WAL files manually to the pg_xlog directory. But it'd be much better 
> than nothing for 9.1.

Maybe we're overcomplicating this.  What about changing pg_basebackup to
print a message when the backup is completely sent/received?  People
would get used to that quickly, and would know to be suspicious if they
didn't see it.

                        regards, tom lane

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