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From "Tietz, Jonathan" <>
Subject AW: AW: SVN on docker/kubernetes/openshift - shared storage?
Date Thu, 29 Nov 2018 13:03:56 GMT
Hi Brane,

thanks for your response.

To understand you right, if we are using many svn-instances and one shared storage AND we
are using a loadbalancer, we have to ensure that write operations will only be done on ONE

That means we have to choose between http method. I found one sample for HAProxy

these method are for read only:

All others are for write operations



-----Ursprüngliche Nachricht-----
Von: Branko Čibej <> 
Gesendet: Dienstag, 27. November 2018 20:44
Betreff: Re: AW: SVN on docker/kubernetes/openshift - shared storage?

On 27.11.2018 11:25, Tietz, Jonathan wrote:
> Hi,
> we have times where the load of our server is getting quite high, so we want to spread
the load to different svn-instances.

The first step is to find out what exactly is causing the load; whether it's commits or updates
or something else.

>  As we have TBs of data, we do not want to share these data over different storages.

> But if you say, that (one) shared storage with different svn-instances (mod_subversion)
will never work, than ok, I didn't find an answer. Can you confirm?

Subversion itself supports master/slave replication, where all commits go to a single server
but read operations can be served by many. Maybe that's sufficient for your case, but it's
hard to say without any performance data. Sometimes just tuning the server configuration may
be enough.

> If yes, then we have to thing about a different architecture, eg. many 
> svn-instances each with its own storage

Sure, you can split repositories amongst different servers. Or you can use a commercial solution
that provides master/master replication.

-- Brane

> -----Ursprüngliche Nachricht-----
> Von: Branko Čibej <>
> Gesendet: Freitag, 23. November 2018 12:06
> An:
> Betreff: Re: SVN on docker/kubernetes/openshift - shared storage?
> On 23.11.2018 11:27, Tietz, Jonathan wrote:
>> Hi,
>> we are thinking about to run subversion on a docker/openshift environment.
>> That means we have multiple subversion instances, reading/writing on 
>> subversion repositories saved on one shared storage (currently nfs
>> filesystem)
>> According to internet, e.g. 
>> 2 /0/why-you-should-not-use-network-file-system-with-git-or-svn
>> You should not use nfs.
>> Has someone else running a similar setup with a shared storage? If yes, what filesystem
are you using?
> What are you trying to achieve with this configuration? Perhaps there's a better way
to solve your use-case than using a basically unsupported and possibly broken configuration.
> -- Brane
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