[Glass] LZ4 for backups in the near future?

[Mariano Martinez Peck via Glass]

On Mon, Jun 26, 2017 at 4:32 PM, Norm Green <norm.green at gemtalksystems.com>
wrote:

> So far the new security features are just for backups.  We can consider
> adding it to extents and tranlogs, but we think performance might be better
> if compression/encryption is handled at the file system level using
> LUKS/dm-crypt rather than at the GemStone level.
>
>
Well, I guess your developed scenario is good and it covers serious / large
apps. I was just thinking on "smaller" or simpler kind of apps, where the
backups may reside in same root directory than the extent. For example, by
default (it can be changed), GsDevKit_home  would have both backups and
extents  under $GS_HOME/server/stones/stoneXXX. So... if for some reason my
server is compromised who ever got access to the backups would also have
access to the extent. So... encrypting the backups does not make sense in
this case unless I also encrypt the extent.

But.... as said, I do see the advantages of having encrypted backups. And
it's good to know that I can move / share/ copy backups to another place
(outside where the extent is) and they are encrypted. That is good!


> Norm
>
>
> On 6/26/17 12:28, Mariano Martinez Peck wrote:
>
>
>
> On Mon, Jun 26, 2017 at 4:22 PM, Norm Green <norm.green at gemtalksystems.com
> > wrote:
>
>> Hi Mariano,
>>
>> LZ4 backups are in 3.4 for both regular (insecure) backups and the new
>> secure backups.  secure backups are always digitally signed and may be
>> compressed and/or encrypted as well.
>>
>>
> Wow, that's very good news!!!!
> Let me ask... those features will be only for backups or for extent /
> tranlogs too?
>
> Cheers,
>
>
>
>> Norm
>>
>>
>>
>> On 6/26/17 12:12, Mariano Martinez Peck wrote:
>>
>> Hi Norm,
>>
>> Do you know if LZ4 backups are finally gonna make it for 3.4?
>>
>>
>> On Mon, Mar 14, 2016 at 11:28 PM, Mariano Martinez Peck <
>> marianopeck at gmail.com> wrote:
>>
>>> Thanks Norm. That's good to hear!!
>>>
>>>
>>> On Fri, Mar 11, 2016 at 10:37 AM, Norm Green via Glass <
>>> glass at lists.gemtalksystems.com> wrote:
>>>
>>>> We plan to support LZ4 backups in the next major release (3.4).
>>>>
>>>>
>>>> On 3/11/2016 4:54 AM, Mariano Martinez Peck via Glass wrote:
>>>>
>>>> Hi guys,
>>>>
>>>> I was reading the release notes of 3.3 and I was very glad to see you
>>>> started using LZ4. I made a Pharo wrapper for LZ4 [1] long ago when I was
>>>> testing Fuel serializer with compressed streams.
>>>>
>>>> Anyway, I was very happy with LZ4 performance. My backups of the extent
>>>> takes quite some time in the compressing part (much more than in the
>>>> smalltalk side!). So I was wondering if using LZ4 is in the plans or not (I
>>>> read in the release notes that this is NOT used currently for backups...but
>>>> I wonder if there is a technical reason or only a matter of time).
>>>>
>>>> Thanks in advance,
>>>>
>>>>
>>>> [1] http://smalltalkhub.com/#!/~marianopeck/LZ4
>>>>
>>>> --
>>>> Mariano
>>>> http://marianopeck.wordpress.com
>>>>
>>>>
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>>>>
>>>>
>>>>
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>>>>
>>>
>>>
>>> --
>>> Mariano
>>> http://marianopeck.wordpress.com
>>>
>>
>>
>>
>> --
>> Mariano
>> http://marianopeck.wordpress.com
>>
>>
>>
>
>
> --
> Mariano
> http://marianopeck.wordpress.com
>
>
>


-- 
Mariano
http://marianopeck.wordpress.com
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