Tag：Solution
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Time：2020-11-29
Recently, I want to build a new project, because I haven’t used. Net core, so I want to build a new project in the environment of. Net core. Because I am not familiar with the architecture of. Net core, I downloaded the ABP project to learn about it.But I was too busy. I downloaded the […]
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Time：2020-11-28
Business scenario analysis In the logic of purchasing goods, it is necessary to query and deduct the balance of the user‘s wallet Exception: if the same user concurrently executes multiple services, there is a certain probability of data inconsistency in the “query + deduction” business Tips: if there is no restriction on the frequency of […]
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Time：2020-11-24
The words written in the front IIS has set directory browsing enabled, and files can be accessed normally, which indicates that these settings are OK. However, when you click the file to download, you will be prompted that the file cannot be downloaded, the file does not exist, and so on. Some are OK. After […]
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Time：2020-11-23
‘ascii’ codec can’t encode characters in position problem Error in running Python 3 script output to command line in Ubuntu Solution Add Lang or LC_ All is set to en_ US.utf8 Or zh_ CN.utf8 List current settings [email protected]:~# locale LANG=zh_CN.UTF-8 LANGUAGE= LC_CTYPE=”en_US.UTF-8″ LC_NUMERIC=”en_US.UTF-8″ LC_TIME=”en_US.UTF-8″ LC_COLLATE=”en_US.UTF-8″ LC_MONETARY=”en_US.UTF-8″ LC_MESSAGES=”en_US.UTF-8″ LC_PAPER=”en_US.UTF-8″ LC_NAME=”en_US.UTF-8″ LC_ADDRESS=”en_US.UTF-8″ LC_TELEPHONE=”en_US.UTF-8″ LC_MEASUREMENT=”en_US.UTF-8″ LC_IDENTIFICATION=”en_US.UTF-8″ LC_ALL=en_US.UTF-8 List […]
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Time：2020-11-19
Cause of error The connection with the remote service was interrupted, but the check found that the origin is still there. It may be that the file is too large and the cache is not enough. Increase the cache size Solution Project directory. Git config Add the following code at the end [http] postBuffer = […]
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Time：2020-11-18
preface JS has a headache hell callback problem, so there is promise, chain calls, based on promise also appeared a variety of asynchronous solutions, one of the best personal feeling should be async / await solution, has always been vague use, until encountered loop and asynchronous problems, so spent time looking up information from 1 […]
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Time：2020-11-15
❝ This paper introduces in detail the problem of a large number of lost data when the upstream Flink task using processing time semantics fails and restarts to consume a large amount of data overstocked in the upstream and outputs to the downstream data disorder is particularly serious, and the downstream Flink tasks encounter a […]
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Time：2020-11-9
Recently, the geek rebate platform I created adopts the method of separating front and back. The front-end framework is mainly built by vuecli. However, after the project package went online, there was a problem with the secondary page 404. For example, the / about page. When you refresh, 404 appears. Or directly copy the secondary […]
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Time：2020-11-9
I’ve always been interested in the issue of deterministic execution. We spent a lot of time on the multithreading model. Most of us have encountered bugs in a certain range. Even if you’ve got a fix ready, you’re not sure it’s going to happen again. All you can do is test, test, retest, and hope […]
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Time：2020-11-2
Cause of error 1. The file or directory is occupied by other programs 2. The account (operating system) has no permission 3. NPM is not logged in Solution 3.1. If there is no NPM account, use NPM addUser or register with the official website 3.2. Log in with NPM account by NPM login Note: only […]
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Time：2020-10-30
We usually identify users’ access devices in the browser throughUser AgentThis field is used to get the information, but through it we can only get a general information, such as whether you are using MAC or windows, whether you are using iPhone or iPad. If I want to know which generation of iPhone you are […]
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Time：2020-10-29
Each article in this series starts from some practical cases, analyzes some problems often encountered in the production environment, and puts forward some suggestions to help partners solve some practical problems. This paper introduces Flink time and time zone problems, and analyzes the time zone problems encountered in the day level window. If it is […]
