On Sep 22, 2008, at 9:59 AM, david.x.grierson_at_jpmorgan.com wrote:
> On Sep 22, 2008, at 9:27 AM, Murli Varadachari wrote:
>
>> I am testing out an arrangement whereby the subversion repository
>> is located on shared partition [ netapps partition ] -- and
>> accessed by multiple subversion hosts via NFS. My plan is to have
>> one of these hosts be used for read-write access and the rest for
>> read-only access. I have tested this out and it looks O.K so far.
>>
>> Q: Can this arrangement be used to have all hosts be capable of
>> read-write access. Can subversion handle multiple access points on
>> the same repository.
>>
>> Cheers
>> Murli
>>
>> P.S: I am using FSFS
>
> No - this will not work with NFS access from multiple hosts.
>
> NFS (even with correctly working locking) does not work with
> Subversion
> 1.5 or lower because the underlying apr libraries used for
> transactions
> still use DBM files - which require working locks.
>
> You will eventually end up with repository corruption - particularly
> likely when large commits are performed.
David,
The FAQ says this is OK; do you have information to the contrary?
http://subversion.tigris.org/faq.html#nfs
It warns against storing a BDB repository on NFS, but says "If you
are using the FSFS repository back end, then storing the repository
on a modern NFS server (i.e., one that supports locking) should be
fine." And Murli did say they are using FSFS.
Murli,
You may want to look into svnsync, available with Subversion 1.4 and
up. It can be used to create any number of read-only mirrors of your
main repository. Each mirror would have its own local copy of the
repository.
You can even set up a write-through proxy so that people can check
out from the read-only mirrors and when they check in it will be
redirected to the master. This is available in Subversion 1.5 and up.
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Received on 2008-09-22 20:29:45 CEST