vitess | database clustering system for horizontal scaling | Database library
kandi X-RAY | vitess Summary
kandi X-RAY | vitess Summary
Vitess is a database clustering system for horizontal scaling of MySQL through generalized sharding. By encapsulating shard-routing logic, Vitess allows application code and database queries to remain agnostic to the distribution of data onto multiple shards. With Vitess, you can even split and merge shards as your needs grow, with an atomic cutover step that takes only a few seconds. Vitess has been a core component of YouTube's database infrastructure since 2011, and has grown to encompass tens of thousands of MySQL nodes. For more about Vitess, please visit vitess.io.
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Trending Discussions on vitess
QUESTION
I'm a trying to start a program at boot but without success. The program starts well but doesn't stay alive (it is supposed to be a infinite script). But when I start the program normally I don't have any problem! I don't get why when I run at reboot it doesn't work.
I use a cron tab like this:
...ANSWER
Answered 2021-May-26 at 20:57As I can see you are using some network service. Maybe when the cron run at @reboot, the network is not ready yet. It may worth a try to implement as service and run command on that way.
Example implementationCreate a file where the system daemon services can be found, e.g.: /lib/systemd/system/TestStartup.service. Example for content of member:
QUESTION
I am using Vite JS with Vue 3 for a single page application with server side rendering.
I know that the JS that can only execute on client side must be done on hydration, but is it possible to do so with packages?
My situation is that I want to be able to use Headless UI (for Tailwind UI) and it works fine as long as the app is launched as a Single Page App. When it is launched with SSR, this error occurs:
...ANSWER
Answered 2021-May-21 at 21:26you should import and use that package only on client side.
for import only in client side you can use require instead of import like that:
QUESTION
I have created a class Capteur_Input
and one of the options in the constructor creates an interrupt using wiringPiISR
wiringPiISR(m_pin, INT_EDGE_RISING, isrInput);
my class also has an attribute m_impulsion
and I am incrementing this value each time that an interruption happens.
this what my interrupt handler looks like
...ANSWER
Answered 2021-Mar-30 at 12:14Your timeout
signal might be interfered or delayed.
You may try to specify a Qt::Connectiontype to force Qt to treat your timeout
signal as soon as it is emitted.
QUESTION
I will need a little advice for a personal project. I am new to the python language. I've been looking for a solution for two days now and I'm starting to pull my hair ^^
I have a loop with two If, I don't know if this is the right solution
I would like in the first case if no plane is detected the loop starts again after 5 seconds.
In the second case if one or more planes is detected, I will want the rapart loop 10 min later to find if there are new planes or not.
Thanks in advance to all!
...ANSWER
Answered 2021-Feb-12 at 18:00I suggest you rearrange your code to something like this:
QUESTION
I need to add multiple markers on google maps in fragment activity.
This is my current code:
...ANSWER
Answered 2021-Jan-10 at 16:09You can do it like this,
QUESTION
i want to be able to iterate over my class but the interpretter keep saying that object are not iterable there for sure a ways to get a around that
...ANSWER
Answered 2020-Nov-29 at 20:01bloc_list = []
class Bloc():
def __init__(self,vitesse=0,position=(0,0),masse=0):
self.vitesse=vitesse
self.position=position
self.masse=masse
bloc_list.append(self)
bloc1=Bloc(10,(0,0),15)
bloc2=Bloc(15,(1,4),13)
for obj in bloc_list:
print(obj.position)
print(bloc_list)
QUESTION
I am having a hard time using an attribute from a class in a module I made. I am using PyCharm and am trying to create a small game with pygame.
Here is the content of the module Player_class.py :
...ANSWER
Answered 2020-Sep-06 at 16:22Don't use ...
QUESTION
StackBlitz: https://stackblitz.com/edit/league-predictions
I have a project where I want to predict football league standings. I have two lists, one where the prediction goes, and one with all the teams.
At the beginning the prediction list is empty, so you can start dragging teams in. But because it is empty, the first team is automatically ranked first. Of course you can sort them later, but what I want is predefined slots based on the number of team. This way you can drag the teams directly in the right place.
I can't really find a solution on the internet on how to achieve this.
This is my current situation, so you can see what I am talking about: League Predictions
And this is what I want to achieve.
Does someone know how to predefine slots for Angular CDK DragDrop
This is my current code.
...ANSWER
Answered 2020-Aug-28 at 15:41Well without a working stackblitz it's hard to provide any useful codesamples, but I give it a shot.
For the left list I would create an Array with empty objects for the same size as your teams list.
I would create {name: null, logo: null}
entries and have a check in the template to display nothing if name === null
Extend the drop
event handler and add a check if (dropTarget.name === null)
and replace the dummy entry with your value. Otherwise keep your existing logic
Edit: Basic Stackblitz example: Stackblitz
QUESTION
I have created an array object and would like to read it in dropdownlists in the HTML file. I prepared everything (Observables ... etc) But when I run my program, I get the arrays, but the array objects I have the empty field. Did I write something wrong?
My TS code:
...ANSWER
Answered 2020-Aug-12 at 18:31gammeAscenseurs.gamme
does not exist, since gammeAscenseurs
is an array. you should be calling gammeAscenseurs[0].gamme
inside the ngFor
.
QUESTION
kinda worried with following code that should automatically generate checkbox content AND limit up to 3 the number of checked boxes.
Separately both codes work fine, the issue occurs when they are combined:
...ANSWER
Answered 2020-Jul-26 at 18:20You mean this?
You need to delegate when you create dynamic elements
OR add the event handler after the generation
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