Re: Latest version of Hot Standby patch

Heikki Linnakangas <heikki.linnakangas@enterprisedb.com>

From: Heikki Linnakangas <heikki.linnakangas@enterprisedb.com>
To: Simon Riggs <simon@2ndQuadrant.com>
Cc: pgsql-hackers <pgsql-hackers@postgresql.org>
Date: 2009-01-07T11:18:59Z
Lists: pgsql-hackers
There's still something wrong with the way subtransactions are handled. 
I got:

postgres=# SELECT * FROM foo;
ERROR:  could not access status of transaction 118649
DETAIL:  Could not open file "pg_subtrans/0001": No such file or directory.

in the standby after some testing.

I created a lot of subtransactions in the master, each inserting a row 
to table 'foo', and left the transaction open. In another session, I did 
a lot of dummy activity (truncate bar; insert into bar ...) to generate 
WAL, and also checkpoints and pg_xlog_switch() calls. I then restarted 
the standby, and got the above error.

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