Subject RE: [firebird-support] gbak reliability problem
Author Kevin Stanton
I think I've had this before, a long time ago. If I remember right, I ended
up using the -L switch to ignore transactions in limbo.

[] On Behalf Of jack.mason58
Sent: Friday, August 09, 2013 6:43 AM
Subject: [firebird-support] gbak reliability problem

Whether we use the old Interbase 6.02 gbak or the current 2.52 (as of
yesterday) Firebird gbak, gbak will not reliably backup one of our Interbase

The structure of the failing database table is quite simple: one integer,
one timestamp, and one blob. The blob appears to be the problem. The
database is backed up successfully until this table is attempted. Even
though the database is on a remote system that is quite slow to access, most
of the database backs up within a couple of minutes, including 145,000
records of another table

Sometimes gbak will back up the entire table, and complete the entire
database successfully, sometimes it will hang showing no recordss backed up,
sometimes 20,000 records backed up, sometimes 40,000 records backed up. When
it hangs, it hangs for about an hour (we haven't actually timed it) and then

The backup command is part of a Windows batch file:
C:\"program files"\firebird\firebird_2_5\bin\gbak -b -v
lserver:C:\BFL\SMTBDB\sales C:\backups\Friday\sales.bak

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