Why do replica sets on the same server and shards on different servers?

Why do replication sets on the same server and sharding on different servers? In this way, one server does not...

From [MongoDBdiscussion group] 2018-08-12 09:59:22 0  0  1304

node.js - node express runs and reports an error, as follows

When I run supervisor --harmony index, I get the error as shown below. Then I turn it off and restart it, and ...

From [MongoDBdiscussion group] 2017-07-05 10:47:00 0  4  1637

mongodb - Authorization failed

Since my computer is 32-bit, I can only use a lower version of robomongo. However, when connecting to the data...

From [MongoDBdiscussion group] 2017-07-05 10:45:37 0  1  1469

javascript - Mongodb data update questions?

How does mongodb update the replies array (addition and deletion) of the specified _id in comments? {code...}

From [MongoDBdiscussion group] 2017-07-04 13:44:17 0  1  1220

javascript - mongoose save does not work and has no response~~

{Code...} 123 can be printed, and new User can also print. Then it stops when it comes to the save method. The...

From [MongoDBdiscussion group] 2017-07-04 13:44:14 0  1  1359

javascript - mongodb reference cannot delete reference when deleting data

A problem occurs: the _id field of data 2 is in the friends field of data 1. At this time, I want to delete da...

From [MongoDBdiscussion group] 2017-07-03 11:41:12 0  1  1492

python3 failed to insert data into mongodb (check Mongovue, there is no data in the database), but no error was reported when the program ran.

The code is as follows: {Code...} After the execution is completed, check Mongovue and the displayed result is...

From [MongoDBdiscussion group] 2017-07-03 11:41:06 0  1  1573

mysql - Which master can write this SQL sentence using mongodb?

{Code...} The sql statement is as above, can anyone give me some advice?

From [MongoDBdiscussion group] 2017-06-30 09:54:02 0  1  1209

Error configuring mongodb on mac

Error: fanlinfeng's directory: mongodb's directory:

From [MongoDBdiscussion group] 2017-06-29 10:09:00 0  1  1178

node.js - How to deploy nodejs application to server?

The thing is like this, I am doing front-end development. I recently learned nodejs and did some practice proj...

From [MongoDBdiscussion group] 2017-06-29 10:08:54 0  3  1956

How to traverse query in mongodb?

An existing array is as follows, {code...}

From [MongoDBdiscussion group] 2017-06-27 09:18:17 0  1  1263

node.js - gm convert unable to open file ...[NO such file or directory]

Use gm to read the image, the path is correct, and error: gm convert unable to open file...[NO such file or di...

From [MongoDBdiscussion group] 2017-06-27 09:18:16 0  1  1675

javascript - mongodb Authentication failed.

Node serves as a service. In the development and production environment, the session data was put into the mem...

From [MongoDBdiscussion group] 2017-06-27 09:18:13 0  1  1177

How to return mongodb data from a call

{Code...} As the title says, I want to encapsulate mongo into Model.... But I found a problem. There is no pro...

From [MongoDBdiscussion group] 2017-06-26 10:49:30 0  2  1241

node.js - windows cannot start mongodb service?

After searching for a long time, I can't find anything wrong! What's going on? The result I want is that mongo...

From [MongoDBdiscussion group] 2017-06-24 09:43:05 0  1  1163