Re: [HACKERS] [COMMITTERS] pgsql: Oops, don't forget to rewind the directory before scanning it to

2010-02-22 Thread Andres Freund
On Monday 22 February 2010 04:58:29 Tom Lane wrote:
 Fujii Masao masao.fu...@gmail.com writes:
  +   Free(xldir);
  
  s/Free/FreeDir ?
 
 Yeah, that too.  I think it's all good now, but please test.
At least I havent seen any of the problems pointed out in fsync fun.

 One thing I was wondering was whether the stat-wrong-file problem
 could explain the buildfarm failures that we thought were evidence
 of a portability issue.  I was tempted to re-enable the #ifdef NOTYET
 code, but didn't want to pull that trigger while there were other
 problems outstanding.
I unfortunately dont think so. The mkdir above should not have been bothered 
by the stat issue - especially as it was only introduced by the commit to 
disable the fsyncing.

 I also think it should scan the todir not the fromdir, just on
 general principles to avoid any possibility of race conditions.
That one actually was my idea/code and intentional with the idea to error out 
at one more place if anything goes wrong in the copy loop - I could not think 
of any race issues created by that which were not there before.
On the other hand its unlikely to catch anything so I dont mind.

Andres

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Re: [HACKERS] [COMMITTERS] pgsql: Oops, don't forget to rewind the directory before scanning it to

2010-02-21 Thread Tom Lane
Fujii Masao masao.fu...@gmail.com writes:
 + Free(xldir);

 s/Free/FreeDir ?

Yeah, that too.  I think it's all good now, but please test.

One thing I was wondering was whether the stat-wrong-file problem
could explain the buildfarm failures that we thought were evidence
of a portability issue.  I was tempted to re-enable the #ifdef NOTYET
code, but didn't want to pull that trigger while there were other
problems outstanding.

regards, tom lane

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