If MariaDB cared they should have used the AGPL. This has been an issue with open source for a long time now. Solutions are available, and you need to think before using the license.
MariaDB can't change the license of the server, at least not without consent of the upstream copyright holder. That being Oracle... well...
Nonsense. Germany closed it's last hard coal mine in 2015...
No, we closed the last one at the end of 2018, and the local mines had been on a decline for several decades already as imported hard coal was so much cheaper than digging it up from up to a kilometer deep under a densely populated area.
German brown coal on the other hand can still be retrieved from open pits rather easily (once you got rid of settlements and protected forests that may be in the way).
That's why the share of electricity produced by hard coal has been going down quite a bit over time, while the share of brown coal has declined only minimally so far.
But despite having no more hard coal mines of our own hard coal plants are still providing about 15% of our electricity so far, they are just operated by cheaper imported coal than what we could bring up from the deep locally
Well, so far we still have a net surplus to sell to our neighbors, even though we already managed to cut nuclear to less than half of its original production, and coal slowly on the decline for a decade already, too.
I don't see us becoming a net importer any time soon.
At the same time France sees the majority of their nuclear plants coming to an age where they eventually need to be shut down...
"As coal is only about 30% - 40% of Germany's energy production, changing that to gas, or even combined cycle gas has only a minimal effect."
It may have a rather small impact on CO2 emissions, but as a large part of it is domestic brown coal retrieved from open pit mines in a rather densely populated country, this also triggers repeated discussions about whole villages and small towns having to be relocated, and about the impact on local ecosystems.
Also its emission footprint of other substances than CO2 is bad compared to natural gas.
And last not least, gas plants can be much smaller than coal plants, and don't have to be close to the coal mines, so having the option to put then to a second use with power-heat cogeneration
For such small scale projects efficiency does not really matter that much as there are several chemical plants that produce significant amounts of H2 as a by-product.
So getting the hydrogen needed for two trains is not an issue. Getting enough hydrogen to replace all current diesel-electric train engines would be a completely different story though.
Well, even the high speed German ICEs got rid of heavy locomotives quite a while ago. Starting with the ICE 3 series in ~2000 they switched to distributed motors, usually on every 2nd coach, and have passenger space from front to back all the way.
You can even have a peak over the engine drivers shoulder when in the first section of the front coach there (he can set the glass front between him and you to non-transparent though).
Here in Germany almost everything long and medium distance is electric (minus e.g the ill-fated ICE-TD that's no longer in operation).
Local lines that operate aside from the electrified main tracks still often run diesel-electric though. Especially the single track local lines are usually not electrified, and at times even signals and switches are still operated by someone locally pulling big levers (although that's been mostly phased out over the last two decades).
"Had Germany relied only on renewables they would have had thousands people dead from hypothermia."
Electric heating is not very common in Germany, at least not for central heating. You may have an additional electric heater here and there, but these are secondary, not primary heatings.
There is a small fraction of homes that still use "night storage heaters" which were subsidized in the 1950s to 1970s or so. These heat up storage ceramics at night and release the heat over the day. These were subsidized as they only used electricity at night when demand was low, so that nuclear and coal base load plants could be left running at night.
This form of heating is only used by a pretty small minority of households these days though.
"Subject to the Use Limitation, Licensor grants you a non-exclusive, worldwide (subject to applicable laws) license to copy, modify, display, use, create derivative works, and redistribute the Software until the Change Date."
See? "modify" and "create derivated works" is especially allowed.
On the other hand the "free ride" usage condition is actually "less than three database servers", so your "can't even deploy it on more than three servers" is not correct, it actually is "no more than two".
If you buy the product from MariaDB then you are not using it for free, so the usage limitation "Usage of the software is free when your application uses the Software with a total of less than three database server instances for production purposes." doesn't apply to you.
So no different LICENSE.TXT needed. You can use your modified version internally up to the number of instances you've licensed, you can also publish modified source ("fork it on github"), but others who use your fork are still bound to "total of less than three database server instances" unless they also have a license agreement with MariaDB Corp.
IANAL, but I think that basically has it covered. Any license agreement with MariaDB Corp. is an extension to the LICENSE.TXT conditions, not a replacement in my point of view. But again: IANAL
"You cannot fix the software that you currently run."... but you can. You get the source. BSL is about usage restrictions, not about not getting the source.
I agree that it is not a true open source license (I'd call it "Eventually Open Source").
But it is not a closed source license either.
It's restrictions are about using the binaries produced from the source, not about seeing or touching the source itself. If you have permission to run it you also automatically have permission to modify and fix it in any way you want.
I won't say that I'm a big fan of the idea either, but we should at least stay with the facts...
This is not about MySQL or MariaDB (the product) source code though. This is about the MaxScale proxy which is a totally different product. It used the original MySQL SQL parser in its 1.x release, which is still released under the GPL. MaxScale 2.0, which is BSL-Licensed, no longer contains any MySQL code any more.
Any changes made to the actual server product will continue to be under GPL for the reason you've given. Nothing needs ot be given back to Oracle though. The changes are obviously available to Oracle to integrate into MySQL Community Server, but Oracle can't simply integrate them in the commercially licensed version...
So that would be an iron cube with a side length of about 257km hiding in a roundish object with a diameter of about 200km... that would make it a very interesting thing to explore indeed...
* running UberBlack in (AFAIK) Berlin only, offering services in compliance with "Mietwagen" regulations
-> that doesn't seem to work out well for them as the existing competition already coveres that market well
* running UberPop in several cities which doesn't play by the rules at all
And "not playing by the rules at all" on the Pop side is what they currently get slapped for, the UberBlack offering is not affected, and they would be free to enter the "Taxi" market, too (available taxi licenses are limited in a way slightly similar to yellow cabs in NYC, but buying into that market would still be cheaper than the legal charges they are facing now...)
And last not least the german transportation law allows for execptinal licenses to experiment with new models... that would require negotiating with the authorities about such an exception, and as far as I know they never even bothered to ask...
Uber Black was their attempt to play by the rules (well, sort of)... they only started to push POP after seeing that there's not really that much demand for the the service they offer with Black over here in Germany
Depends on the SQL_MODE settings... if using backwards compatible settings you'll at least get a truncation warning now, if using more strict modes it will throw errors instead...
There is no one-size-fits-all rendering, the "official" mapnik style is but one of many...
e.g. JOSM has icons for benches, waste_baskets and signposts, none of them show up on the "main" map though... but they are rendered just fine on the more topic specific hike&bike map
That's why our mantra is: "We don't map for the renderer!"
> Is it truely drop-in replacement as in "you can develop to MySQL, then run MariaDB in production without worrying"?
yes, unless you use some of the non-GPL extra features like e.g. authentication plugins or pool-of-threads. For these MariaDB has GPL replacements but the implementation and configuration may differ...
> Does it require converting current tables?
Data format of MyISAM and InnoDB tables is the same, so "no" in general. mysql system database may differ a bit, but nothing the mysql_upgrade tool can't fix, and you'll have the same issues when develop against an older MySQL version and deploying to a newer one...
> Will it take a 10GB database all day to convert or will MariaDB just use the raw MySQL data files automagically?
It will use existing raw files just fine. mysql_upgrade may take a few minutes max., but not all day... (unless you're migrating from an older MySQL version and mysql_upgrade needs to recreate some indexes... but that would happen when upgrading to a more current MySQL release, too, and wouldn't be MariaDB specific
The only point where it isn't a simple "try and revert if you don't like it" drop in replacement is if mysql_upgrade changed mysql.* system tables and you want to roll back to regular MySQL... but then again this is also the case when trying to upgrade to a more recent MySQL release and then deciding to roll back to a previous older one again... so you should always have a backup to restore the original system tables from... but you'd do a full backup before any version migrations anyway, wouldn't you?
http://en.wikipedia.org/wiki/CargoLifter - made it about as far as building a small blimp-size prototype and a nice large assembly hangar for "the real thing"... which is now used as a large indoor beach resort instead
And even back then it was pretty clear that their planned fleet size whould totally exhaust available Helium supplies...
* Unknown CD Distribution (don't remember the name, lost the CD), came with a small paper note with a few line diff to make a broken floppy driver work again * Slackware repackaged by SuSE, then their own Distro stuff * SuSE all the way until 2006 or so, some attempts to switch to Debian always faild due to driver issues * short MacOS/X detour, most stupid window manager ever... * Ubuntu until last year * Short Mint detour, regrettet when it came to version upgrades * back to Ubuntu (with XFCE) for now...
Slashdot Mirror
with circles giving you easy control over what taget audience sees what, and a rather text centric stream.
Nice alternative to facebook ... but then they failed to built up on that differentiation, and rather tried to become more like facebook themselves.
There was no need for a second facebook that's just the same though ...
If MariaDB cared they should have used the AGPL. This has been an issue with open source for a long time now. Solutions are available, and you need to think before using the license.
MariaDB can't change the license of the server, at least not without consent of the upstream copyright holder. That being Oracle ... well ...
Nonsense. Germany closed it's last hard coal mine in 2015 ...
No, we closed the last one at the end of 2018, and the local mines had been on a decline for several decades already as imported hard coal was so much cheaper than digging it up from up to a kilometer deep under a densely populated area.
German brown coal on the other hand can still be retrieved from open pits rather easily (once you got rid of settlements and protected forests that may be in the way).
That's why the share of electricity produced by hard coal has been going down quite a bit over time, while the share of brown coal has declined only minimally so far.
But despite having no more hard coal mines of our own hard coal plants are still providing about 15% of our electricity so far, they are just operated by cheaper imported coal than what we could bring up from the deep locally
Well, so far we still have a net surplus to sell to our neighbors, even though we already managed to cut nuclear to less than half of its original production, and coal slowly on the decline for a decade already, too.
I don't see us becoming a net importer any time soon.
At the same time France sees the majority of their nuclear plants coming to an age where they eventually need to be shut down...
"As coal is only about 30% - 40% of Germany's energy production, changing that to gas, or even combined cycle gas has only a minimal effect."
It may have a rather small impact on CO2 emissions, but as a large part of it is domestic brown coal retrieved from open pit mines in a rather densely populated country, this also triggers repeated discussions about whole villages and small towns having to be relocated, and about the impact on local ecosystems.
Also its emission footprint of other substances than CO2 is bad compared to natural gas.
And last not least, gas plants can be much smaller than coal plants, and don't have to be close to the coal mines, so having the option to put then to a second use with
power-heat cogeneration
For such small scale projects efficiency does not really matter that much as there are several chemical plants that produce significant amounts of H2 as a by-product.
So getting the hydrogen needed for two trains is not an issue. Getting enough hydrogen to replace all current diesel-electric train engines would be a completely different story though.
Well, even the high speed German ICEs got rid of heavy locomotives quite a while ago. Starting with the ICE 3 series in ~2000 they switched to distributed motors, usually on every 2nd coach, and have passenger space from front to back all the way.
You can even have a peak over the engine drivers shoulder when in the first section of the front coach there (he can set the glass front between him and you to non-transparent though).
Here in Germany almost everything long and medium distance is electric (minus e.g the ill-fated ICE-TD that's no longer in operation).
Local lines that operate aside from the electrified main tracks still often run diesel-electric though. Especially the single track local lines are usually not electrified, and at times even signals and switches are still operated by someone locally pulling big levers (although that's been mostly phased out over the last two decades).
"Had Germany relied only on renewables they would have had thousands people dead from hypothermia."
Electric heating is not very common in Germany, at least not for central heating. You may have an additional electric heater here and there, but these are secondary, not primary heatings.
There is a small fraction of homes that still use "night storage heaters" which were subsidized in the 1950s to 1970s or so. These heat up storage ceramics at night and release the heat over the day. These were subsidized as they only used electricity at night when demand was low, so that nuclear and coal base load plants could be left running at night.
This form of heating is only used by a pretty small minority of households these days though.
But you *can* touch:
"Subject to the Use Limitation, Licensor grants you a non-exclusive, worldwide (subject to applicable laws) license to copy, modify, display, use, create derivative works, and redistribute the Software until the Change Date."
See? "modify" and "create derivated works" is especially allowed.
On the other hand the "free ride" usage condition is actually "less than three database servers", so your "can't even deploy it on more than three servers" is not correct, it actually is "no more than two".
If you buy the product from MariaDB then you are not using it for free, so the usage limitation "Usage of the software is free when your application uses the Software with a total of less than three database server instances for production purposes." doesn't apply to you.
So no different LICENSE.TXT needed. You can use your modified version internally up to the number of instances you've licensed, you can also publish modified source ("fork it on github"), but others who use your fork are still bound to "total of less than three database server instances" unless they also have a license agreement with MariaDB Corp.
IANAL, but I think that basically has it covered. Any license agreement with MariaDB Corp. is an extension to the LICENSE.TXT conditions, not a replacement in my point of view. But again: IANAL
"You cannot fix the software that you currently run." ... but you can. You get the source. BSL is about usage restrictions, not about not getting the source.
I agree that it is not a true open source license (I'd call it "Eventually Open Source").
But it is not a closed source license either.
It's restrictions are about using the binaries produced from the source, not about seeing or touching the source itself. If you have permission to run it you also automatically have permission to modify and fix it in any way you want.
I won't say that I'm a big fan of the idea either, but we should at least stay with the facts ...
This is not about MySQL or MariaDB (the product) source code though. This is about the MaxScale proxy which is a totally different product. It used the original MySQL SQL parser in its 1.x release, which is still released under the GPL. MaxScale 2.0, which is BSL-Licensed, no longer contains any MySQL code any more.
Any changes made to the actual server product will continue to be under GPL for the reason you've given. Nothing needs ot be given back to Oracle though. The changes are obviously available to Oracle to integrate into MySQL Community Server, but Oracle can't simply integrate them in the commercially licensed version ...
So that would be an iron cube with a side length of about 257km hiding in a roundish object with a diameter of about 200km ... that would make it a very interesting thing to explore indeed ...
They are playing a two-way game in Germany,
* running UberBlack in (AFAIK) Berlin only, offering services in compliance with "Mietwagen" regulations
-> that doesn't seem to work out well for them as the existing competition already coveres that market well
* running UberPop in several cities which doesn't play by the rules at all
And "not playing by the rules at all" on the Pop side is what they currently get slapped for, ...)
the UberBlack offering is not affected, and they would be free to enter the "Taxi" market,
too (available taxi licenses are limited in a way slightly similar to yellow cabs in NYC,
but buying into that market would still be cheaper than the legal charges they are facing
now
And last not least the german transportation law allows for execptinal licenses to ... that would require negotiating with the authorities ...
experiment with new models
about such an exception, and as far as I know they never even bothered to ask
In Socialist Germany, we only now start to discover the concept of minimum wages ... go figure ...
Uber Black was their attempt to play by the rules (well, sort of) ... they only started to push POP after seeing that there's not really that much demand for the the service they offer with Black over here in Germany
easter_days() plus fixed offset will get you a given years Ascension Day (easter_days+39, Withsunday (+49) etc.
strictly speaking easter_date() is indeed redundant as you could as well use easter_days()+0, but its there as convenience function ...
but as far as I remember the main reason for having both was that the C library the calendar extension relies on has both, too ...
Depends on the SQL_MODE settings ... if using backwards compatible settings you'll at least get a truncation warning now, if using more strict modes it will throw errors instead ...
See http://tools.geofabrik.de/mc/
There is no one-size-fits-all rendering, the "official" mapnik style is but one of many ...
e.g. JOSM has icons for benches, waste_baskets and signposts, none of them show up on the "main" map though ... but they are rendered just fine on the more topic specific hike&bike map
That's why our mantra is: "We don't map for the renderer!"
> Is it truely drop-in replacement as in "you can develop to MySQL, then run MariaDB in production without worrying"?
yes, unless you use some of the non-GPL extra features like e.g. authentication plugins or pool-of-threads. For these MariaDB has GPL replacements but the implementation and configuration may differ ...
> Does it require converting current tables?
Data format of MyISAM and InnoDB tables is the same, so "no" in general. mysql system database may differ a bit, but nothing the mysql_upgrade tool can't fix, and you'll have the same issues when develop against an older MySQL version and deploying to a newer one ...
> Will it take a 10GB database all day to convert or will MariaDB just use the raw MySQL data files automagically?
It will use existing raw files just fine. mysql_upgrade may take a few minutes max., but not all day ... (unless you're migrating from an older MySQL version and mysql_upgrade needs to recreate some indexes ... but that would happen when upgrading to a more current MySQL release, too, and wouldn't be MariaDB specific
The only point where it isn't a simple "try and revert if you don't like it" drop in replacement is if mysql_upgrade changed mysql.* system tables and you want to roll back to regular MySQL ... but then again this is also the case when trying to upgrade to a more recent MySQL release and then deciding to roll back to a previous older one again ... so you should always have a backup to restore the original system tables from ... but you'd do a full backup before any version migrations anyway, wouldn't you?
http://en.wikipedia.org/wiki/CargoLifter - made it about as far as building a small blimp-size prototype and a nice large assembly hangar for "the real thing" ... which is now used as a large indoor beach resort instead
And even back then it was pretty clear that their planned fleet size whould totally exhaust available Helium supplies ...
we're all in violation as far as i can tell ...
* Unknown CD Distribution (don't remember the name, lost the CD), came with a small paper note with a few line diff to make a broken floppy driver work again ... ...
* Slackware repackaged by SuSE, then their own Distro stuff
* SuSE all the way until 2006 or so, some attempts to switch to Debian always faild due to driver issues
* short MacOS/X detour, most stupid window manager ever
* Ubuntu until last year
* Short Mint detour, regrettet when it came to version upgrades
* back to Ubuntu (with XFCE) for now