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pg_tblspc and fsm files
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* pg_tblspc and fsm files
@ 2015-10-27 18:08 Mark Steben <mark.steben@drivedominion.com>
  2015-10-27 20:55 ` Re: pg_tblspc and fsm files Tom Lane <tgl@sss.pgh.pa.us>
  0 siblings, 1 reply; 2+ messages in thread

From: Mark Steben @ 2015-10-27 18:08 UTC (permalink / raw)
  To: pgsql-admin

Good afternoon,

We are running postgres 9.2.12

I created a new tablespace on a disk different from where the actual
database resides.  I then create a new index on that tablespace.  While
troubleshooting a performance issue I run an
strace and this statement is issued:

pg_tblspc/883496444/PG_9.2_201204301/883496522/885187893_fsm", O_RDWR) = -1
ENOENT (No such file or directory)

I search the directory referenced and confirm that, indeed, there is no fsm
file that resides there.
Neither is there an fsm file in the database's base directory.  However, we
have other indexes built in non-default tablespaces and I find no fsm file
there either.

I realize that strace is not a postgres command.  Is this something that
needs to be fixed or can I ignore?

Thank you,
-- 
*Mark Steben*
 Database Administrator
@utoRevenue <http://www.autorevenue.com/; | Autobase
<http://www.autobase.net/;
  CRM division of Dominion Dealer Solutions
95D Ashley Ave.
West Springfield, MA 01089
t: 413.327-3045
f: 413.383-9567

www.fb.com/DominionDealerSolutions
www.twitter.com/DominionDealer
 www.drivedominion.com <http://www.autorevenue.com/;

<http://autobasedigital.net/marketing/DD12_sig.jpg;

^ permalink  raw  reply  [nested|flat] 2+ messages in thread

* Re: pg_tblspc and fsm files
  2015-10-27 18:08 pg_tblspc and fsm files Mark Steben <mark.steben@drivedominion.com>
@ 2015-10-27 20:55 ` Tom Lane <tgl@sss.pgh.pa.us>
  0 siblings, 0 replies; 2+ messages in thread

From: Tom Lane @ 2015-10-27 20:55 UTC (permalink / raw)
  To: Mark Steben <mark.steben@drivedominion.com>; +Cc: pgsql-admin

Mark Steben <mark.steben@drivedominion.com> writes:
> I created a new tablespace on a disk different from where the actual
> database resides.  I then create a new index on that tablespace.  While
> troubleshooting a performance issue I run an
> strace and this statement is issued:

> pg_tblspc/883496444/PG_9.2_201204301/883496522/885187893_fsm", O_RDWR) = -1
> ENOENT (No such file or directory)

This is a non-issue.  It's normal for a table or index to not have an FSM
early in its lifespan.

			regards, tom lane


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