MongoDB is a document oriented database (also known as NoSQL database).

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mongodb - “large” dataset, infrequently accessed

I was looking at Google and ObjectRocket as a cloud provider for my MongoDB. I currently have 2 billion items stored on a 512GB RAM VPS. A GeoJSON query is taking minutes. I need the query to take ...
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Recovering data from mangodb raw files

we use mongodb for our database and set the replset(two servers), but we mistakenly deleted some raw files that under /path/to/dbdata on both servers, after we used tool to get back the deleted ...
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40 views

Replicated MongoDB server slower than simple shards

I tried to compare the performance of a sharded configuration against a sharded and replicated configuration. The sharded configuration consists of 8 shards each running on three different machines ...
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19 views

How to recover a degraded MongoDB sharded cluster?

I've had problems with a MongoDB replica set of my sharded cluster. The current status of the nodes is: node1: primary (but apparently vetoed by node3 that needs to sync) node2: rollback (it was the ...
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38 views

Mongodb replica failures to resolve DNS when primary DNS is stopped while secondary DNS is operational

I have setup mongod replica consisted of 3 nodes + 1 delayed hidden node + arbiter. I have setup DNS: primary and secondary internal DNS (bind) servers, so that I can reference nodes by normal FQDN ...
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cloud server implementation for sensor networks [duplicate]

I want to implement a cloud server. i.e., I want to be able to scale the servers once i m done working on my application for my sensor networks. I want to know to implement the cloud server (resource ...
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26 views

Is there a way to set dynamic mongodb shard tagging?

I'd like to deploy a mongodb cluster with 2 shards: one for short-term-storage (STS) and the other for long-term-storage (LTS). I need my data to be split in 2 parts: 1 month old data and newer goes ...
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2answers
31 views

MongoDB Auth, can be authenticated in the shell but not via the command line

I have an application that connects to a MongoDB database called discussions. I've created a user Mongo shell: > use discussions switched to db discussions > ...
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49 views

Very strange disk-usage for replica in Mongodb

tl;dr: the new 2.6 replica eats up a lot more disk space than the 2.4 members. We're heavy users of MongoDB's GridFS. We're currently on 2.4, and are intending to upgrade to 2.6 by simply adding a ...
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2answers
133 views

SSH tunneling in background

I'm trying to tunnel my production mongo server to my test server, so, I can perform some tests. I know I can simply establish a tunnel by ssh -L, but I need to run this as a background process as I ...
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1answer
36 views

MongoDB - DB/collection fragmentation level

I recently had a performance issue with one of my collections. On a whim (and thanks to this article), I decided to try compacting (as written in the official documentation). This worked brilliantly. ...
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43 views

keepalived: 2nd VRRP_Script never seems to run

I'm trying to implement keepalived on 3 mongodb boxes, the idea is that if mongod on one of the boxes goes down or we need to move the primary node to another system for some reason our application ...
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46 views

How exactly do I install MongoDB 2.4, instead of the latest version?

I've read the instructions on installing older versions but it appears that 2.4 is no longer available in the repos? aptitude -y install mongodb-org-server=2.4 Unable to find a version "2.4" for the ...
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1answer
41 views

connection issue between godaddy shared hosting and amazon ec2 mongodb

I have a site on godaddy shared hosting that is not able to connect to an windows 2k12 amazon ec2 instance running mongodb. Any ideas why I cannot connect? Thanks for your help! Error message: A ...
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4answers
113 views

Issues installing mongodb on centos 5

I'm trying to install mongodb for my centos 5.1 server via yum. I followed the instructions of creating a .repo file in the yum folder, but it still doesnt work. here's the screenshot of the issue: ...
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22 views

MongoDB Max Connections

we are using mongodb in our application for catching a lot of the data to reduce load from our main mysql database, for the last 2 3 days we are having an issue where the mongodb will hit the limit ...
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35 views

MongoDB Sharding Issue

I made some Sharding tests but I always got the same issue. I got 1 config server, 3 shards (mongod) on 3 different servers (500 Go each). When I made an insertion of huge amount of data (1 000 000 ...
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3answers
122 views

Expose a mongodb streaming data server that's behind a firewall, to the internet

I have streaming data on a Windows platform that I capture into Mongodb at fairly high rate of about 800 data points per second. I wish to have access to this data from outside the company, but the ...
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1answer
132 views

mongod service not starting

I've installed mongodb in Debian Squeeze using this guide (guide here) Installed successfully. It was running well until I restarted the machine (using command "reboot"); After restart, mongodb is ...
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1answer
150 views

Docker doesn't start MONGODB, and IPAddress doesn't appear, when started with other services

I have been trying to build an OS image from Fedora unsuccessfully to start the following: Systemd SSHD RabbitMQ MongoDB I can get the first 3 (Systemd, SSHD and RabbitMQ-Server) to work. I can ...
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26 views

Mongo Cluster - Unresponsive node/primary prevents creation of databases, secondary didn't take over

I have a Mongo cluster with a few shards each backed by replicasets with a primary, a secondary and an arbiter. Today one of the primaries became unresponsive. I logged into it directly and tried a ...
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78 views

RockMongo Connection Issue with MongoDB Slave

I have a MongoDB Replication with Master-Slave (not RepliSet) I have configured RockMongo on two servers. But I able to login to master server through rockmongo but when I login to slave with rock ...
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1answer
54 views

MongoDB copyDatabase failed with dbOwner

I have a remote mongo database in which I've setup a certain data base and a user with a dbOwner privileges. I can access to this db with this user info, but I can not copy this data using ...
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1answer
38 views

ENTRYPOINT & CMD commands with mongod results in unknown option error

I am using multiple Dockerfiles to setup my server infrastructure. One of the Dockerfiles I build is a MongoDB server which will be linked to a running web server application in a later step. ...
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1answer
45 views

mongod won't run without me specifying my own conf path

I recently upgraded my apt-get and now mongod isn't behaving correctly. I currently have to run via: mongod --dbpath /var/lib/mongodb and leave the terminal open for it to work. If I just run ...
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31 views

Do I need to run db.repairDatabase() on every mongod?

I'm handling a MongoDB (2.4.10) sharded cluster that has only 1 replica set till now. I ran db.repairDatabase() on a mongos. With that, I could reclaim free space on the primary node. But not on the ...
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131 views

Rename Mongo Shard

Can I, and if I can, how can I rename a shard in Mongo? Like if I wanted to change the instances of rs0 to rep0 below: mongos> sh.status() --- Sharding Status --- sharding version: { "_id" ...
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101 views

Backup Mongodb on EC2 through EBS snapshots - timing issue

I'm following this guidance http://docs.mongodb.org/ecosystem/tutorial/backup-and-restore-mongodb-on-amazon-ec2/ I have 4 EBS 1000 IOPS volumes assigned to instance These 4 volumes through MDADM ...
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63 views

Mongodump on Gridfs is killing the host IOs

I'm trying to make a mongodump from our production mongodb while the production is running. We have three production instances, one regular mongodb, one with very few gb of data on gridfs, one with a ...
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50 views

MongoDB Mergelist error in Debian 6.0.9

We installed Ubiquiti UniFi 2.4.6 which installs Mongodb 10gen on Debian Squeeze 6.0.9. This was a clean install, with no other packages installed from the base install (other than SSH). I was able ...
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1answer
69 views

Amazon OpsWorks - unable to reference ebs volume in mongo dbpath

I'm deploying mongo with Amazon OpsWorks as described in the Setting Up a MongoDB Replicaset With AWS OpsWorks and the instance fails to start when I specify mounted ebs volume (/data/ebs) in dbpath. ...
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1k views

how to connect to mongodb server via ssh tunnel

It was easy for me to connect to my remote mysql server on AWS using a sequelpro, however I'm struggling with doing the same thing with mongodb. I tried setting up an ssh tunnel via command line ...
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135 views

mongo as service error: Cannot determine state of server

I am trying to use mongodb as a service and started with heroku services ie dashboard.heroku.com/apps/scaleqamongo/resources. I tried multiple addons which they call like mongolab, mongohq. I create ...
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82 views

mongodb replication with admin authentication

I have three nodes of mongodb replication set 2 servers have the data and the third is an arbiter 54.83.20.44 : 27017 (primary) 54.197.243.55 : 40000 (secondary) 23.21.148.73 : ...
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1answer
1k views

installing mongodb on 14.04

I was trying to install mongodb into a fairly clean Ubuntu 14.04. I used the following commands: sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv 7F0CEB10 echo 'deb ...
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48 views

Using Replication for Migration on MongoDB

I'm interesting in using replica set feature on Mongo as a method for smoothly migrating between machines. My Mongo database is currently a standalone instance. I realize the recommended practice is ...
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1answer
813 views

How to start Mongo daemon with auth support

I want to start the MongoDB daemon with auth support using the Mongo init script: sudo /etc/init.d/mongod start I have also added db users to the database to authenticate. I'm working with two ...
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27 views

Migrate standalone Mongo DBs to sharded/replicated cluster

Currently I have several independent standalone Mongo servers. I have Now set up a sharded and replicated Mongo cluster. I plan to copy over all databases from the standalone Mongo servers to the ...
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52 views

mongodb on aws 2 region replication

I think I already have the answer, but I'm a developer so thought I'd check here first. There are AWS regions with more than 2 zone, but some with only 2. E.g. Sydney. Now if I were to deploy a ...
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178 views

trying to install mongo but getting errors

I am following mongo site (http://docs.mongodb.org/manual/tutorial/install-mongodb-on-red-hat-centos-or-fedora-linux/ ) to install mongo on my centos 5.1o I am getting following errors sudo yum ...
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199 views

How to set ulimits for mongod?

How do I set ulimits for the mongod process/user on CentOS? I've read the official documentation but it doesn't provide OS-specific instructions. I need to set ulimit -u 64000 and need this to ...
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48 views

using cas server with mongodb backend

I 'm new to setting up cas(Central Authentication Service) server. I couldn't find any guides to setup mongodb as backend for CAS server. Is there an adapter to connect CAS and mongodb. BTW, we don't ...
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2answers
162 views

Installing multiple mongoDB versions on the same server

I have installed a 2.4 mongoDB version and I'd like to compare against the recently released 2.6 version. I want to know if possible to do a clean new install rather en an update to see if those two ...
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1answer
281 views

Incremental backup mongodb using rsync

I want to store small files (60 kb, couple of millions) into MongoDB, I was thinking using GridFS, but it seems BSON will do. Anyway, I want to make rsync to backup the mongodb chunk files, so ...
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1answer
41 views

Do I need to manually promote a replication node to Primary after a Primary node failure?

I have a basic 3 member MongoDB replication set. 1 x Primary 2 x Secondary A = Primary B = Secondary C = Secondary The Mongod service on the Primary stopped, and as expected, one of the Secondaries ...
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98 views

mongoose/mongodb DoS-ing a nodeJS instance [closed]

We have a nodeJS instance inside a AWS VPC that makes a request to a mongodb instance running in another availability zone. The node instance is hit with a particular request a lot. That request is ...
2
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1answer
106 views

MongoDB 100% locked periodically. MMS charts attached

Trying to diagnose what could be causing intermittent lock-up on MongoDB server running behind a Rails application. Hoping that someone might recognise the pattern of peaks and troughs in the charts ...
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1answer
81 views

Backup MongoDB database copying files in `dbpath`?

I need a daily backup of all MongoDB databases in our single-instance server (without stopping the MongoDB service). Our server is in Rackspace so I'm wondering if a valid strategy could be just add ...
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121 views

Can't load Mongo extension in php.ini

I'm having some issues while try to load mongo.so extension at php.ini. Below is what I tried: Compile the mongo extension by following the documentation at php.net for MongoDB site. This resumed ...
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441 views

how to integrate between MONGODB & SOLR, using MONGO-CONNECTOR

Like this I started my mongod with replSet mod mongod --dbpath=/home/local/ASSYST-COC/so/mongo --replSet myrep --auth mongo started mongo -u root -p root --authenticationDatabase admin IN ...