MongoDB is a scalable, high-performance, open source, document-oriented database. It supports a large number of languages and application development platforms.
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votes
1answer
6 views
Translating MongoDB query to a MongoDB java driver query
Please help me translate the following MongoDB query to a java based Query using the Java MongoDB driver. Thank You.
db.playerscorecollection.aggregate(
{ $unwind: "$scorearray"},
{ ...
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votes
0answers
18 views
MP3 files are not loading in Mongodb with php
I can successfully upload / download image files in Mongodb with php through GridFS, but when I try to upload mp3 file, nothing happens. Neither I get any error nor any it is uploaded and further I ...
0
votes
1answer
11 views
MongoDB beginner - to normalize or not to normalize?
ok, I'm going to try and make this as straight-forward as I can.
comming from mySql and thinking in tables, let's use the following example:
Let's say that we have a real-estate website and we're ...
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votes
0answers
12 views
node + express + mongoose query authentification
Im building a simple web app app in express, and I'm a bit stuck in the authentification for my sessions, im going to validate everything in the client with backbone and regExp eventually when i start ...
0
votes
1answer
5 views
Is it possible to pair EZ Publish 5 to MongoDB?
We have an EZ Publish 5 already operational with an Oracle 11g database as a persistence backend.
We planned to get rid of Oracle and we know that we could use Postgresql for sure as a new RDBMS, but ...
1
vote
0answers
14 views
Iterating MongoDB cursor blocks forever
I'm using the MongoDB C# driver 1.8.1.20 with Mongo 2.4.3. I use the following infinite loop to poll new messages from a capped collection and process them as they come (with a tailable cursor and ...
0
votes
1answer
15 views
Inserting data into mongodb using python
Should I be re-initializing the connection on every insert?
class TwitterStream:
def __init__(self, timeout=False):
while True:
dump_data()
def dump_data:
##dump my data into mongodb ...
0
votes
1answer
20 views
Mongo vs Couch in a specific use case
My use case is this: Currently, in Couch I've created views by emitting mapreduce keys that are programmatically calculated based on the fields of the documents. For example, a document always has ...
1
vote
2answers
13 views
Can't import MongoClient
I am unable to do this:
from pymongo import MongoClient
I get:
>>> import pymongo
>>> from pymongo import MongoClient
Traceback (most recent call last):
File "<stdin>", ...
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votes
0answers
9 views
mdadm no such file or directory
Please help me debugging this issue. I run following command on EC2 t1.micro ubuntu 12.04 instance while creating RAID for mongodb
I followed: ...
0
votes
1answer
21 views
MongoDB Java Driver Infinite loop while reading results
I am reading MongoDB results using the following code , however the while loop runs in an infinite loop always iterating over the first element in the collection, can someone point out what I am doing ...
3
votes
2answers
27 views
mongodb: count/size of a query array
How do I get the size .count of a returned array
db.students.distinct('class_id')
This query will get back a array, how do I get the size/length/count of this array?
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votes
0answers
19 views
NodeJS/ExpressJS send response of large amount of data in 1 stream
I'm prototyping an app using the native mongo rest api where Node returns about 400K of json. I use the following to maket he request to mongo's native api and return the result:
...
0
votes
2answers
25 views
Async and recursion in nodejs
Beginning with express and mongoose i often need to do some batch operations on collections.
However it usually involves callbacks which is a pain given how concurrency is coded in nodejs.
so ...
0
votes
1answer
11 views
How to tell if specific MongoS instance has active connections?
StackOverflow Community:
I'm upgrading a sharded cluster and want to turn one of three mongos instance off... I've guaranteed that new incoming connections will not take place because I disabled the ...
