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Re: pg_stop_backup does not complete

Heikki Linnakangas <heikki.linnakangas@enterprisedb.com>

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From: Heikki Linnakangas <heikki.linnakangas@enterprisedb.com>
To: Greg Smith <greg@2ndquadrant.com>
Cc: Fujii Masao <masao.fujii@gmail.com>, Greg Stark <gsstark@mit.edu>, Bernd Helmle <mailings@oopsware.de>, Tom Lane <tgl@sss.pgh.pa.us>, Heikki Linnakangas <heikki.linnakangas@enterprisedb.com>, Josh Berkus <josh@agliodbs.com>, Simon Riggs <simon@2ndquadrant.com>, PostgreSQL-development <pgsql-hackers@postgresql.org>
Date: 2010-03-02T07:11:50Z
Lists: pgsql-hackers 
Greg Smith wrote:
> Fujii Masao wrote:
>> We would be easily able to calculate the last archived log file from
>> the existence of archive status files.
> 
> Right, but you have to actually scan the whole archive directory to
> figure that out, and I'd rather not see that code get duplicated
> somewhere else when it's already inside the archive_command logic.  If
> it just shared that info with the rest of the system instead this would
> be trivial to discover.

The archiver process is not connected to shared memory, so scanning the
directory is the way to do it.

-- 
  Heikki Linnakangas
  EnterpriseDB   http://www.enterprisedb.com