Re: dbmirror bug

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От Bruce Momjian
Тема Re: dbmirror bug
Дата
Msg-id 200211221604.gAMG4q923813@candle.pha.pa.us
обсуждение исходный текст
Ответ на dbmirror bug  (Hai-Chen Tu <hctu@yahoo.com>)
Список pgsql-bugs
Good catch.  Fix will be in 7.3.

---------------------------------------------------------------------------

Hai-Chen Tu wrote:
> Your name               : Hai-Chen Tu
> Your email address      : hctu@yahoo.com
>
>
> System Configuration
> ---------------------
>   Architecture (example: Intel Pentium)         :
>
>   Operating System (example: Linux 2.0.26 ELF)  :
>
>   PostgreSQL version (example: PostgreSQL-7.3):
> PostgreSQL-7.3
>
>   Compiler used (example:  gcc 2.95.2)          :
>
>
> Please enter a FULL description of your problem:
> ------------------------------------------------
> dbmirror generates "out of memory" error in some
> cases when the DEBUG_OUTPUT is enabled.
>
>
>
>
> Please describe a way to repeat the problem.   Please
> try to provide a
> concise reproducible example, if at all possible:
> ----------------------------------------------------------------------
> The cause of the problem is that pending.c in dbmirror
> uses
>     elog(NOTICE, cpKeyData)
> and
>     elog(NOTICE, cpFieldData)
> to print column data where elog
> interprets the second argument as sprintf
> format string, which fails if
> cpKeyData/cpFieldData contains '%'.
>
>
>
>
> If you know how this problem might be fixed, list the
> solution below:
> ---------------------------------------------------------------------
>
> The solution is to change
>     elog(NOTICE, ...)
> to
>     elog(NOTICE, "%s", ...)
>
> This applies to all cpKeyData and cpFieldData,
> and probably cpFieldName.
>
>
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--
  Bruce Momjian                        |  http://candle.pha.pa.us
  pgman@candle.pha.pa.us               |  (610) 359-1001
  +  If your life is a hard drive,     |  13 Roberts Road
  +  Christ can be your backup.        |  Newtown Square, Pennsylvania 19073

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