LZ4 for backups in the near future?
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LZ4 for backups in the near future?
 
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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, _______________________________________________ Glass mailing list [hidden email] http://lists.gemtalksystems.com/mailman/listinfo/glass |
Re: LZ4 for backups in the near future?
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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:
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Re: LZ4 for backups in the near future?
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Thanks Norm. That's good to hear!! On Fri, Mar 11, 2016 at 10:37 AM, Norm Green via Glass <[hidden email]> wrote:
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Re: LZ4 for backups in the near future?
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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 <[hidden email]> wrote:
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Re: LZ4 for backups in the near future?
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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. Norm On 6/26/17 12:12, Mariano Martinez Peck
wrote:
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Re: LZ4 for backups in the near future?
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On Mon, Jun 26, 2017 at 4:22 PM, Norm Green <[hidden email]> wrote:
Wow, that's very good news!!!! Let me ask... those features will be only for backups or for extent / tranlogs too? Cheers,
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Re: LZ4 for backups in the near future?
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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.
Norm On 6/26/17 12:28, Mariano Martinez Peck
wrote:
_______________________________________________ Glass mailing list [hidden email] http://lists.gemtalksystems.com/mailman/listinfo/glass |
Re: LZ4 for backups in the near future?
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On Mon, Jun 26, 2017 at 4:32 PM, Norm Green <[hidden email]> wrote:
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!
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