Re: Portal suddenly disappears?

Tatsuo Ishii <ishii@postgresql.org> writes:
> While looking at pgpool-II user's complain, I see weired thing in the
> PostgreSQL log.

> Jan 14 10:04:57 dayrhegrdp005 postgres[25223]: [4559-1] LOG:  00000: statement: PREPARE pgpool19528 AS SELECT
count(*)from (SELECT has_function_privilege('measure',
 
> Jan 14 10:04:57 dayrhegrdp005 postgres[25223]: [4559-2]  'pgpool_regclass(cstring)', 'execute') WHERE EXISTS(SELECT *
FROMpg_catalog.pg_proc AS p WHERE p.proname = 'pgpool_regclass'))
 
> Jan 14 10:04:57 dayrhegrdp005 postgres[25223]: [4559-3]  AS s
> Jan 14 10:04:57 dayrhegrdp005 postgres[25223]: [4559-4] LOCATION:  exec_parse_message, postgres.c:1159
> Jan 14 10:04:57 dayrhegrdp005 postgres[25223]: [4560-1] LOG:  00000: statement: <BIND> pgpool19528
> Jan 14 10:04:57 dayrhegrdp005 postgres[25223]: [4560-2] LOCATION:  exec_bind_message, postgres.c:1460
> Jan 14 10:04:57 dayrhegrdp005 postgres[25223]: [4561-1] ERROR:  34000: portal "pgpool19528" does not exist
> Jan 14 10:04:57 dayrhegrdp005 postgres[25223]: [4561-2] LOCATION:  exec_execute_message, postgres.c:1669

> The portal "portal19528" was created by a bind message (pgpool-II uses
> the identical name as the named statement) then subsequent
> exec_bind_message failed to find the portal. Could it ever happen?

I'm confused too.  Surely there are lots of ways a portal could get
dropped, but most of them would have left traces in the postmaster log,
I'd think, since you evidently have log_statement == LOGSTMT_ALL.
What was log_min_messages set to?

> According to the user, PostgreSQL version is 8.1.23. Could it be a
> source of problem?

However, it's pretty hard to get excited about debugging something
that happened in a release branch that's been out of support for
more than three years.
        regards, tom lane