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Re: Subversion Perforce with of BDB_TXN_NOSYNC enabled vs disabled

From: Brandon Ehle <azverkan_at_yahoo.com>
Date: 2003-02-27 22:02:44 CET

Greg Hudson wrote:

>On Thu, 2003-02-27 at 10:08, Brandon Ehle wrote:
>
>
>>I realize that its supposedly not safe to run with BDB_TXN_NOSYNC, but I
>>am going to conduct some real world multi-user testing with this flag
>>enabled and see what kind of results I get.
>>
>>
>
>Removing fsync calls won't cause any failures for multi-user operation,
>or for processes terminating unexpectedly.
>
>You will see failures for the case where the system loses power. Data
>which was supposed to have been "committed" may be lost in the kernel's
>write cache without the fsync calls.
>
>
Assuming a stable kernel and a power backup running with DB_TXN_NOSYNC
should be perfectly safe then?

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Received on Thu Feb 27 18:53:40 2003

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