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Re: Streaming replication, and walsender during recovery

Tom Lane <tgl@sss.pgh.pa.us>

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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Fujii Masao <masao.fujii@gmail.com>
Cc: Heikki Linnakangas <heikki.linnakangas@enterprisedb.com>, Simon Riggs <simon@2ndquadrant.com>, PostgreSQL-development <pgsql-hackers@postgresql.org>
Date: 2010-01-28T15:48:53Z
Lists: pgsql-hackers 
Fujii Masao <masao.fujii@gmail.com> writes:
> How about just making a restore_command copy the WAL files as the
> normal one (e.g., 0000...) instead of a pg_xlog/RECOVERYXLOG?
> Though we need to worry about deleting them, we can easily leave
> the task to the bgwriter.

The reason for doing it that way was to limit disk space usage during
a long restore.  I'm not convinced we can leave the task to the bgwriter
--- it shouldn't be deleting anything at that point.

			regards, tom lane