Re: Idea for fixing the Windows fsync problem
От | Magnus Hagander |
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Тема | Re: Idea for fixing the Windows fsync problem |
Дата | |
Msg-id | 20070117081453.2AF7ADCC186@svr2.hagander.net обсуждение исходный текст |
Ответ на | Re: Idea for fixing the Windows fsync problem ("Takayuki Tsunakawa" <tsunakawa.takay@jp.fujitsu.com>) |
Ответы |
Re: Idea for fixing the Windows fsync problem
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Список | pgsql-hackers |
> BTW: what happens on Windows if we're trying to do the equivalent > > of "rm -rf database-dir" and someone is holding open one of the > files > > in the directory? Or has the directory itself open for readdir()? For the first definity and I think for the second, when doing it from the commandline, you get a 'cannot delete the directorybecause it is not empty'. I'm not sure if our implementation for dealing with open files also work with directories. > And I wonder what happens if Windows "copy" command is accessing the > data files when bgwriter tries to open them for fsync, or the reverse > of it. copy would fail? Sharing violation. > If so, it means that online backup sometimes > fails. Any backup software backing up *Anything* online should be using VSS or a custom OFM. and all real solutions do. /Magnus
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