java - Distributed transaction processing solution

Do you need distributed transactions when deploying hibernate on multiple web servers to operate the database? Will there be any problems using the traditional stand-alone method to access the database? How does the industry deal with this problem?

女神的闺蜜爱上我 2017-06-23 09:14:37 0  1  1224

Laravel task scheduling

Recently I used Laravel to do scheduled tasks, and I wrote a scheduled task that can be executed normally every minute. However, when changed to hours, it cannot be executed as expected. It made me confused. {code...}

習慣沉默 2017-05-16 16:51:20 0  1  606

Laravel implementation method for automatically running scheduled tasks

I'm new to Laravel and I need to delete expired OTPs in my OTP database, I created an expires file and defined everything and when I use the phpartisanschedule:run command it runs perfectly. This is the output: 2022-09-1716:37:15 Running in the background ['artisan'Otp:expire]...................... ...

P粉412533525 2023-09-07 17:18:23 0  1  511

java - dubbo distributed call passing parameters

Background: The existing code is being modified. The original structure is to directly complete all business logic through the service() method of the servlet. Now the structure is modified, the service() method is split into several services, and the services are assembled through the dubbo framewo...

给我你的怀抱 2017-06-14 10:51:38 0  1  896

python - How to dynamically add tasks during the run of celery beat scheduler?

I tried django-celery-beat and added tasks in the admin background. It can dynamically add tasks, but it will only take effect after restarting celery beat. Is there any other way to try?

某草草 2017-05-18 10:56:10 0  2  2178

javascript - A simple H5 page can run on Android phones, but errors occur on Apple phones and Google Chrome.

Recently, I made a small translation demo by calling Baidu Translation API. I used bootstrap for css, and then I slightly changed the style. The js part is very simple. It generates a url address + query string according to the rules of Baidu api documentation, and then sends it to the server throug...

为情所困 2017-07-05 10:36:20 0  3  1116

A guide to deploying Jupyter notebooks on Kubernetes

Here are the requirements: Mysql, JupyterNotebook (Both should be on Kubernetes cluster) I need to use JupyterNotebook to run the machine learning model, get data from Mysql database and the whole task needs to be scheduled in Kubernetes cluster environment (just like cron scheduling ). I'm new to K...

P粉710478990 2023-08-29 18:05:19 0  1  533

java - How to solve the pressure on scheduled task polling database

There are many scheduled tasks, and they are distributed on different servers. To poll the database for data that meets the conditions (status) and then process it. In this way, hundreds or thousands of scheduled tasks poll the database, which directly leads to a sharp increase in database pressure....

PHPz 2017-05-17 10:04:44 0  3  1228

Resync "offsetWidth" value on browser resize

I have a horizontal scrolling div with several sub-items. Depending on the width, subitems may be cropped. So you might end up with 4 and 1/2 visible items. So I use Javascript to force the width to evenly distribute the children. I use Javascript to detect the width of the .palette and divide it by...

P粉463811100 2024-03-29 17:24:18 0  1  424

Select some coordinates from a large set of coordinates that appear to be evenly distributed over the area

I have a MySQL table that contains region and latitude/longitude location columns. Each area has many locations, for example 20.000. Is there a way to select just a few, say 100, that would appear to be more evenly distributed on the map? The distribution does not have to be perfect, query speed is ...

P粉262113569 2024-02-26 16:23:02 0  1  361

Teach you how to separate thinkphp view hierarchy blocks

<1>. A brief introduction to the new custom built-in module: the coupling of view-level distributed applications and module chain calls provides developers with a better experience in view-level optimization. I added custom view hierarchy and module calling functions. If you need a more detail...

mrso 2019-11-15 09:03:02 0  0  1046

nginx - Regarding calling rest api, one third of the http requests failed and timed out.

The tomcat 8.0 server is used, nio mode. Others are default configurations. I wrote an interface using rest of spring mvc, and then called it with resttemplate, through the connection pool implemented by httpclient. When 1,000 requests were made concurrently, some requests were found to have timed o...

过去多啦不再A梦 2017-05-16 17:20:58 0  2  664

Invalid React child element (found: Object with key {clientVersion}). If you want to render a collection of child elements, use an array instead

I have a multi-step form and when I try to submit it shows this error. However, if I use createOrganization scheduling in its simple form, it works. Is it a back-end problem or a front-end problem? What could I have done wrong? I would like any hints onboarding.jsximportStepperfrom"./components...

P粉178894235 2024-04-06 16:25:39 0  1  484

Speeding up the ViteJs development model: Vue 3

Can someone help me speed up my ViteJs server? The problem is that the server is very slow in development mode. I start the server, then start the page in the browser and wait 3-6 minutes for the page to load! Initially, ViteJs downloads a few kilobytes of the resource and then the request is in &qu...

P粉953231781 2023-10-31 13:42:49 0  1  818

Change database using partial Http request Url during Spring Boot execution

Every time there is a new Http request, I need to change the database I am currently using and whose name is part of the HttpURL request. I'm trying to use the following code, but when I call the service and it's executing, I can't call it again until the previous service completes or it crashes. I ...

P粉663883862 2024-03-31 12:55:54 0  1  432

CSS Grid Layout Square Cells

I want to create a dashboard-like view using CSSGrid-Layout as a base. I want 16 columns spread across the entire length of the screen (should be responsive). The height of the cell should then be determined by the width of the cell to make the cell a square. The problem is, I want some cells to spa...

P粉593536104 2023-08-15 20:13:32 0  1  484

Stream data from OpenAI's API using AJAX, PHP, and server-sent events

How can I use Server Sent Events (SSE) to stream data from the above API to a browser client using JavaScript and PHP? I've been working on this problem for hours and I can't seem to figure out what's going wrong. For reference, I tried adapting the solution here: StreamDATAFromopenaiGPT-3APIusingPH...

P粉762447363 2023-11-11 12:03:23 0  1  1137

How does docker bind public network static IP?

Currently I am working on a distributed Weibo crawler. Weibo has strict restrictions on account and IP requests. I have seven or eight public IPs, but there are only four servers, so the other four IPs are wasted if not used. So I thought of using a virtual machine or docker to bind the public IP, b...

天蓬老师 2017-05-16 13:17:39 0  2  1135

Is there "element rendering"? event?

I need to accurately measure the dimensions of text in a web application, and I do this by creating an element (with the relevant CSS class), setting its innerHTML and then adding it to a container using appendChild. After doing this, you need to wait a while before the element is rendered, and its ...

P粉727531237 2024-02-26 10:42:45 0  2  515

What is the essential difference between hyper-converged servers and cloud servers?

1. There are three main categories of cloud computing: private cloud, public cloud, and hybrid cloud; there are three main levels of cloud computing services: IAAS, PAAS, and SAAS. 2. The IaaS layer is the core and most basic part of the private cloud, and it is also the first part that enterprise I...

七秒 2021-10-27 09:41:40 0  2  2401