Restart after power outage: createdb

While trying to reproduce power outage restart problem I reported
earlier, I have found something odd when pulling the plug on a VM during
a createdb operation.

If I run...
sleep 3; echo starting; createdb bar
...and power off the VM while the "createdb bar" is running.

Upon restart, about 50% of the time I can reproduce the following error
message:

[lapham@localhost ~]$ psql bar
psql: FATAL:  database "bar" does not exist
[lapham@localhost ~]$ createdb bar
createdb: database creation failed: ERROR: could not create directory
"base/65536": File exists
[lapham@localhost ~]$ createdb bar
CREATE DATABASE

So, running "createdb bar" a second time works.  This is probably not a
bug, but I thought I'd mention it anyway as it could potentially cause
problems for people running scripts.

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  Jon Lapham  <lapham@jandr.org>                Rio de Janeiro, Brasil
  Personal: http://www.jandr.org/
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