linux-kernel - Re: Tux3 Report: Meet Shardmap, the designated successor of HTree

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Date:	Wed, 15 Apr 2015 20:00:18 +0200
From:	Christian Stroetmann <stroetmann@...olinux.com>
To:	Daniel Phillips <d.phillips@...tner.samsung.com>
CC:	Christian Stroetmann <stroetmann@...olinux.com>,
	Linux FS Devel <linux-fsdevel@...r.kernel.org>,
	Linux Kernel <linux-kernel@...r.kernel.org>,
	Tux3 <tux3@...3.org>
Subject: Re: Tux3 Report: Meet Shardmap, the designated successor of HTree

On the 20th of June 2013 22:27, Daniel Phillips wrote:
> On 06/20/2013 12:12 PM, Christian Stroetmann wrote:
>> 1. Stop copying my intellectual properties related with file systems and
>> implementing them. You always came several months too late and I am not
>> interested to let it become a running gag, definitely.
>> 2. Stop marketing my ideas, especially in a way that confuses the public
>> about the true origin even further. I am already marketing them on my own.
>> 3. Give credits to my intellectual properties in any case, even if you
>> make a derivation, and take care about the correct licensing.
> Could you please direct us to details of your design so that we may
> properly appreciate it?
>
> Note that the key idea in Shardmap is not simply logging a hash table,
> but sharding it and logging it as a forest of fifos.
>
> Regards,
>
> Daniel
>

Around 2 years ago, I looked at some details of the FS design and 
discussed the copyright issue with one of my attorneys.
Today, I would like to make the following (maybe closing) words before 
somebody says I would block a development:
1. In general, there is a copyright for every protectable work done by a 
person in the moment of its publication, but in practice it is hard to 
prove, specifically in such a technical case. I will not go into the 
legal details.
Said this, at least I reject my claims, but still think that generally 
it would by a constructive measure if even ideas are referenced in 
relation with open source hard- and software.
In my case it led to the situation that I have stopped to publicate 
ideas, with some very few exceptions.
2. In particular respectively from the point of view of the software 
design, the implementation is virtually what I have proposed (as well). 
Indeed, there are some interesting details and elegant paraphrases.
3. I think it would be interesting to analyze how well this FS works 
respectively to compare this FS with databases that implement something 
surprisingly similar.

C.S.
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