Server configuration: 4core 8G there are several nginx+rails+mongodb+redis+sidekiq services. where rails starts 2 worker, and one worker10 thread sidekiq concurrency is set to 15 how should I optimize or upgrade the server? ...
previously used the Mongo extension used by PHP5, but after upgrading to PHP7, instead of using MongoDB, use the composer package jenssegers mongodb. refer to upgrade PHP7 Operation MongoDB this article PHP MongoDB BulkWriteException: waiting for r...
install mongodb, in win10 environment: the installation path is C:Program FilesMongoDBServer4.0 run cmd, as an administrator to create mongodbdatadb and mongodblogmongo.log files under disk C run mongod under C:Program FilesMongoDBServer4.0bin-- d...
as follows, I entered a command to delete id=5b4c5ac63ce96b02e39b0c08 data in robo 3t and reported an error. How can I solve this problem? db.getCollection( user ).deleteOne({"_id" : ObjectId("5b4c5ac63ce96b02e39b0c08")}) ...
mongodb involves updating multiple tables and has no transaction. How to deal with it ...
similar to Meituan search nearby merchants, if the merchants have their own distribution range, the longitude, latitude and distribution range of the merchants are stored in MongoDB when the search scope is larger than the distribution scope, when...
how do I implement a module (or skeleton) in which multiple routers reference one mongodb? simple code example: routing: router.get( , async (ctx, next)=> { await ctx.render( index ,{}) } ); router.get( about , async (ctx,...
the MongoDB service started successfully, but failed to connect to the database according to the error message, it is said that the data directory was not found, but I configured the cfg file to point the data directory to another folder, I think it...
(node:9160) [DEP0079] DeprecationWarning: Custom inspection function on Objects via. () is deprecated how to deal with it? ...
failed to install php72-mongodb with brew under macOS checked the data and said that homebrew php has been abandoned and merged into homebrew core but failed to install using brew install php72-mongodb directly and could not find https: github.c...
ask, there is only one piece of data in the users table. If I want to delete the indexes 8-11 in the middle cartList entry (array), how can I delete these field? I m not very good at learning mongoDB. By the way, what are the better mongoDB quick c...
problem description constant: number of active people, number of registrants, recharge amount, etc. proportion: proportion of paid people, proportion of lost users, etc. increase or decrease: the number of registered people rises year on year, the n...
Overview: inquiry on the National College entrance examination scores of 7 million College students details: a data table stores 7 million items of examinee score data. Candidates can query the total score and ranking by entering the admission card nu...
problem description there is a shopping cart cartList field under the user table. The field type is as follows: cartList: [ { shopId: { type: Schema.ObjectId }, shopName: String, goodsList: [ ...
when I install mongo as a window service, I always report this error: 2018-08-06T17:59:27.267+0800 I CONTROL [main] Automatically disabling TLS 1.0, to force-enable TLS 1.0 specify-- sslDisabledProtocols none I ve been kneeling all afternoon. W...
problem description crawl the list of Amazon products, save the data into mongodb crawl the first page and pass the next page link to Request. You can get the next page link in shell but you can only see the first page of data in the database after...
problem description 71 related codes 8.3 Update: -sharp def get_registered_paying_user(): unwind = { $unwind : $recharge } -sharp match1 = { $match : { regDate : regDate}} -sharp m...
set up the mongodb cluster, and the first two replica sets have been added successfully. When you get to the third one, because one of the ip addresses is misspelled, the error will be reported when you execute the add shard command again after modifica...
mongodb version: 4.0.1 node.js version: 9.4.0 I encountered two problems: first of all, the environment variable I configured doesn t work. What s wrong with me? the document I read https: docs.mongodb.com manu. the configuration I wrote in ...
A cluster configured with MongoDB sharding, such as the address https: www.cnblogs.com ityou. use the mongoose module to connect to the database. The code is as follows: mongoose.createConnection ( "mongodb: name:pwd@xxx:20000,xxx:20000,xxx:20000 ...
how does gojs make a node stop dragging ...
flex layout, other attributes are displayed normally, but -ms-flex: 1 can t show the effect, what can you do? ...
topic description Your task is to drive your car from 1 to 60 Kilometers per hour by printing a pattern. A hyphen represents the speed of cars. one hyphen is counted as 1 kph. To put it simply, output 1 to 60 hyphens in turn. sources of topics an...
I want to find a point in a circle on a sphere and execute the command: db.places.find( { loc : { $geoWithin : { $centerSphere : [ [ -88 , 30 ] , 10 3963.2 ] } } } ).explain() found that it t...
the following is a multi-dimensional array. How to get a new array after traversing and deleting the array with item and empty lists? var arr = [{ id: 1, name: 1, item: [11,12,13,14], ...