Questions tagged [mongodb-3.6]
92 questions
13
votes
1 answer
node is not in primary or recovering state
My config file is:
systemLog:
destination: file
logAppend: true
path: c:\data\log\mongod.log
storage:
dbPath: c:\data\db
journal:
enabled: true
replication:
replSetName: "rs0"
net:
bindIp: 127.0.0.1
port:…
invzbl3
- 277
- 1
- 4
- 10
5
votes
1 answer
MongoDB GridFS triples the file sizes
I really like using mongodb to store my data and recently I tried out GridFS and it really fits my use case.
My problem with it is the space requirement, which seems quite odd. I have ~107GB of images in Amazon S3, which is around 1 million files…
szabkel
- 264
- 2
- 11
5
votes
1 answer
How do we reference to a collection in MongoDB?
This is my first my first post in this forum. I am from RDBMS background and wanted to learn MongoDB which will help me in migrating our applications to MongoDB. I am creating two collections (customer & address).
Customer collection
Has generic…
Gokulnath Kumar
- 51
- 1
- 1
- 3
4
votes
1 answer
Why $group is very slow in aggregation and how can faster it in MongoDB
My query is taking ~3 seconds to execute with the $group stage, How can I faster this?
My query is:
db.getCollection('employee_data').aggregate([
{ $match: //Filter
},
{
$group:
{
_id: {
employee_id:"$employee_id",
…
Abhilash Lohar
- 41
- 1
- 1
- 2
4
votes
1 answer
MongoDB crashes with out-of-memory or is being killed by oom-killer
A two shards MongoDB database regularly crashes with out-of-memory error or is being killed by the oom-killer. The system runs on GCE Debian 9.4 with MongoDB v3.6.5, WiredTiger storage engine and without swap (as is the practice on GCE). The servers…
ssasa
- 261
- 4
- 11
4
votes
1 answer
Why does mongodb fail my json schema validation?
I am using mongodb 3.6 and have below validator for the students collection:
rs1:PRIMARY> db.getCollectionInfos({name: 'students'})
[
{
"name" : "students",
"type" : "collection",
"options" : {
"validator" :…
Joey Yi Zhao
- 577
- 3
- 9
- 23
3
votes
0 answers
MongoDump Failed: error writing data for collection `collection` to disk: error reading collection: EOF
[BACKUP COMMAND] mongodump --host 127.0.0.1 -d database --port 27017 --username username --password password --out /output/path/mongodump_DATE_12_00_AM
[ISSUE] Failed: error writing data for collection collection1 to disk: error reading collection:…
Kavin
- 31
- 1
- 2
3
votes
2 answers
MongoDB does not allow to create unique partial index in field that contains null
I'm using MongoDB 3.6.9 (with Ubuntu) to save a set of documents that contain one field named rss_id and for some documents, this field has the value null. I want to create a unique index in that field and tried this solution. From the documentation…
Miguel
- 139
- 1
- 4
3
votes
1 answer
Not authorized on admin to execute command mongoDB: Atlas M0 Free Tier cluster
My MongoDB shell has version v3.6.5 (the same with older versions) & MongoDB server has version: 3.6.8
I have MongoDB M0 Free Tier cluster and I want to use from shell different commands.
So, I created admin user with password:
Set up IP…
invzbl3
- 277
- 1
- 4
- 10
3
votes
1 answer
Mongodb create user with only read and write access
Hi I created a new using using following command in mongodb,
db.createUser({ user: 'csquad', pwd: 'somepass123', roles: [ { role: "readWrite", db: "cloud"}]});
Now this user is able to login to db Cloud and do any activities. Including he is able…
Naggappan Ramukannan
- 133
- 1
- 6
2
votes
1 answer
Converting MongoDB instance from Standalone to Replica Set and Backing Up
I want to convert my MongoDB 3.6 standalone server to a replica set so I can watch a collection using change streams, which requires an oplog. I only want to use change streams so will keep this as a single member replica set.
The problem is that my…
Tayum
- 23
- 1
- 4
2
votes
0 answers
getIndexes returns empty array on MongoDB collection
I'm trying creating indexes on a MongoDB collection and while they are correctly created and they work (I can see the index in the executionStats), the output of the getIndexes() function is an empty array:
> db.shopOrder.createIndex({'userId':…
Matteo Riva
- 121
- 4
2
votes
1 answer
Mongodump Backup Resume
My database size is approx 1.5 TB and I have approx 2TB free on backup mount point. But after 10 hours my backup fail due to lack of storage and its just 60% complete. Is their any why through which i can resume my backup from the failure…
Irfi
- 53
- 7
2
votes
2 answers
Should I put users in admin DB or in the DB that they should have access to
What would the pros / cons be of putting users that should have access to one database in the admin database instead of the database that they should have access to?
Background:
I'm a C# developer. This is the first live project using mongodb I'm…
mortb
- 71
- 5
2
votes
1 answer
High CPU Utilization for Mongodb ReplicaSet Secondary Nodes
I am using MongoDB server version: 3.6.4 (WiredTiger storage engine) with 3 node replica set on AWS r4 large machines.
Sharing the CPU Utilization graph of all the nodes
Primary (with .33%)
Secondary 1 (with ~99%)
Secondary 2 (with ~99%)
I tried…
rahulb
- 121
- 1
- 2