Jungle | embedded key-value store library | Key Value Database library
kandi X-RAY | Jungle Summary
kandi X-RAY | Jungle Summary
Embedded key-value storage library, based on a combined index of [LSM-tree] and [copy-on-write (append-only) B+tree] Please refer to our [paper] Jungle is specialized for building [replicated state machine] of consensus protocols such as [Paxos] or [Raft] by providing chronological ordering and lightweight persistent snapshot. It can be also used for building log store.
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QUESTION
I have the following dictionary
...ANSWER
Answered 2021-Jun-10 at 07:10Prepare input data:
QUESTION
I want to measure the efficiency for two solutions for the same problem.
I don't need to include any environmental "noise" into the calculation, just I want to know which of these below solutions would perform better in a perfect world, ie.: which needs more steps to execute?
...ANSWER
Answered 2021-Jun-04 at 15:03One way is to benchmark both solutions, e.g. with QuickBench. In the chart: you can see that second solution is faster. However, execution time of your code might also be dependent on the size and the number of the strings you try to concatenate, so take it into account. I would also recommend benchmarking whole solution (whatever you try to achieve), not just one line of your code (here: append vs operator+).
You can also try it with different compilers and different optimization levels.
QUESTION
I'm having an issue wherein i'm trying to loop through a dictionary to update all the values based on a specific input from a user.
I've posted my code below, basically, the user inputs a number into the different lanes played input boxes, and the function should update the dictionary to contain the values input by the user.
the loop doesn't seem to be going through every key in my dictionary, only returning the first value and then seemingly skipping the rest.
I am only 3 weeks deep into a python tutorial and I'm not really sure what i am doing wrong here.
please see code below :
...ANSWER
Answered 2021-May-27 at 12:10It's because of bad indentation in your code. The return
keyword is hit at the first iteration of the for
loop, which makes your function stop.
This works, since return
happens after the whole for
loop:
QUESTION
I am quite bogged down with the syntax here: role of the super and recursive manner.
In the code below, super.format is written inside the function called "format". As I search for the definition of super, it's parent class, which I guess LinkBot here. And this LinkBot class has a function calle d format. So, it looks to me this is made in the way of recursive.
And also super.formats() is defined inside formats(), which really seems awkward to me..
Can anyone help me what this is..?
Looking forward to finding anyone who saves from this jungle..
...ANSWER
Answered 2021-May-23 at 17:52It is more related on how class work. I just take your class as example to avoid overwhelming you.
QUESTION
I'm new in react-native and I want to pass data from the Home component to the Product component and I import the Product component in the Home component and I map the Product component but I get an error and it says undefined is not an object
Home.js
...ANSWER
Answered 2021-Apr-24 at 05:53Please update your home component to this
QUESTION
Imagine you have the following df:
...ANSWER
Answered 2021-Apr-22 at 13:26Use f-string
s in DataFrame.applymap
and then set new columns names:
QUESTION
I am trying to use this plugin for Jquery, but the remote option for fetch data from database, and I can't make work.
https://xdsoft.net/jqplugins/autocomplete/
The autocomplete function is calling fine the remote url teste_search.asp, but I dont know if on this page I need format the data like this:
['produto abc', 'produto xyz', 'produto 123']
OR like this:
...ANSWER
Answered 2021-Apr-22 at 10:40I was able to solve the problem using the function below together with the json data source:
QUESTION
I need your help! this is some kind of photo gallery :) I want to add this .active class on panels when I click on it. Can anyone teach me how to do that with traditional functions? It only works on just one element :(
...ANSWER
Answered 2021-Apr-10 at 23:12The main approach is to have a function to remove active
class to all active panels before add this class into click event target. You can check the code here:
QUESTION
I've been redoing a lot of my game in order to make it more efficient, before I had functions for each level and it had about 300+ repeated lines of code for each level, I've taken it out however I'm trying to get level one to function properly now. Below is my code, any help as to how to get my code to play level1 when I run the game as right now it only displays the background screen and none of the enemies, platforms or the character.
...ANSWER
Answered 2021-Apr-06 at 21:08I Think you should take a look at your "levels" Class. Give it a proper init method, for example. I got the game running by modifing the class as follows:
QUESTION
My goal is to have an HTTP request initiate a While(true) loop, until another request comes. When a second request comes, I want the first While(true) loop to be cancelled and a second one with different content to be run. My problem is I'm unsure of the best way to approach this. I've tried using Threads, Tasks, even putting the while(true) loops in my Controller (which I later found is really bad practice since controller objects are created on the fly), putting them in my model, etc.
The issue I encounter time and time again is that the while(true) loop doesn't stop. I can't get it to stop, whether by interrupting a thread, changing a boolean variable. I think this comes from a high-level misunderstanding I have about the lifecycle of requests and MVC objects.
Specifically, I am trying to start a while(true) loop that will write a specific lighting sequence to LED strips (i.e. Rainbow themed, Jungle themed, carousel, etc.). To iterate over different colors and write continuously, I need a while(true) to loop until interrupted. Conceptually this is what I have in mind:
Different things I've tried in terms of code are as follow:
- Running the task from the controller (Not going for this anymore -- while loop never ends and is apparently bad practice).
ANSWER
Answered 2021-Apr-01 at 15:37HTTP is a stateless protocol. Each HTTP request does not know about the previous request. It's a fire and forget notion in HTTP world. So if you are redirecting to one page to another page, then you have to maintain your data by using Cookies, Query String, Session, ViewBag or TempData or better yet persist it on the database.
More explanation regarding HTTP Statelessness can be found here:
Why is MVC stateless - How to explain?
So you cannot implement by waiting on the second request and interrupt the first/previous request, since every request is unique.
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