mongodb users February, 2012

Threads	Replies	First post	Last post
I got rakefile error, when mongo-ruby-driver install By: Surisuri i got as below.. it's too hard to use mongo.. T^T Plz somebody help me.. $ rake gem:install /Users/suri/mongo-ruby-driver/Rakefile:14: Use RbConfig instead of obsolete and deprecated Config. i'm using xcode 4.3 / osx 10.7.3 / ruby 1.9.3 thank…	2	Feb 26, 2012 11:07	Feb 26, 2012 21:10
MongoDB / SubQuery By: Daniele Tassone Hi at all, I'm building an gaming based on the MongoDB. Today i need to understand how i can build subquery. Collection 1 (User): - id - name Collection 2 (Point): - UserId - Score (Int32) Basically, i need to select all User and order by Score…	13	Feb 1, 2012 01:51	Feb 2, 2012 05:16
design questions By: cutout33 Hi, Am new to mongo and am trying to use it for my new application, what am thinking abut is to create separate set of collections for each user on the system but I found that there is a limitation on the number of collections in one database…	5	Feb 1, 2012 02:41	Feb 1, 2012 11:01
BasicDBObject.toString() throw RuntimeException when contain Symbol , but it is success to insert By: Wendal Chen Code: Mongo mongo = new Mongo(); DB db = mongo.getDB("wendal_test"); DBCollection ps = db.getCollection("person"); ps.drop(); BasicDBObject obj = new BasicDBObject(); obj.append("wendal", new Symbol("http://wendal.net")); ps.save(obj); …	1	Feb 1, 2012 02:41	Feb 1, 2012 02:45
Using set command on item within an array By: pchengdev I want to do a very simple update on an object within an array but I'm not having any luck so far. I've searched the forums but haven't found anything that quite matches what I need. Suppose I have the following structure { "_id" : "1234", …	1	Feb 1, 2012 02:41	Feb 1, 2012 02:47
Fwd: What would be the equivalent of ERD for a NoSQL database such as MongoDB? By: Sam Millman Forwarding this to mongodb-user, noticed a few errors too so I have corrected them: Column names are not valid ERD syntax due to the nature of an ERD. ERDs are designed to only detail relations between entities, at most you place the connecting…	0	Feb 1, 2012 03:14	Feb 1, 2012 03:14
connectionPerHost maxed at 507 By: sasher I don’t understand why, but no matter how many clients I put against my servers, I bounded to 250 connections per host with connectionPerHost=20000 in driver configuration I ran the application server with connectionPerHost=1000 on 2 server and…	6	Feb 1, 2012 03:26	Feb 1, 2012 08:31
inserts handling in server By: Abhishek kumar Consider the Scenario: 1. I have to insert documents to collection X 2. total documents to be inserted are 10,000, each with 1 KB 3. Consider the default page size is 4KB so my doubts are 1) when mongo server ask for new pages from the disk(I…	1	Feb 1, 2012 04:57	Feb 1, 2012 05:43
Distributed query to slaves within the shard server By: Gennadii Omelchenko Hi! As I know, there is a feature that allows distributing read queries to the slaves (in a replica set) by some drivers using (slaveOkay in the connection string). But what if i have a shard cluster where each node is a replica set itself? Would…	1	Feb 1, 2012 04:59	Feb 1, 2012 05:01
Re: Fwd: What would be the equivalent of ERD for a NoSQL database such as MongoDB? By: shinn Thanks for clarifying, I'd use class diagram I think. Btw what is DTD(pre normalisation)? Does it mean Document Type Definition ? On Feb 1, 5:13 pm, Sam Millman <sam.m### @gmail.com> wrote: > Forwarding this to mongodb-user, noticed a…	1	Feb 1, 2012 04:59	Feb 1, 2012 05:29
Pictorial representation of the index made By: Vineeth Mohan Hi , I would like to see the pictorial or tree representation of the B tree made for each index created in Mongo tree. Is there any UI which facilitates this ? Thanks Vineeth	9	Feb 1, 2012 05:55	Feb 1, 2012 08:34
Schema Advice By: AndyB Hi, I wonder if you could advise the best way to structure data in mongo which has to add remove items from a complex list? Stripping away other items the basic structure is shown below. I'd like to be able to add/remove items to the 'tasks'…	2	Feb 1, 2012 06:26	Feb 1, 2012 11:01
lost the data when update with java driver By: Wangpe Hello everyone, I am using java to control the mongodb. i have now a problem about the update. I used a for loop to insert three documents one by one in my collection. It was so strange. If i run the programm normale, i got only two rows in my…	1	Feb 1, 2012 06:39	Feb 1, 2012 14:36
redundancy for GridFS? By: project2501 Hi, Does GridFS support any kind of replication or redundancy? For example, a chunk of a file is unavailable on one node, but found on another. thanks.	4	Feb 1, 2012 07:08	Feb 1, 2012 13:17
Restarting replica sets on Amazon EC2 after machines have been stopped. By: stefanoric Hi, I am running a test environment on Amazon AWS where I have 2 mongo DB instances on two separate hosts. On those 2 hosts I had configured a "2 servers" replica set and all has been working fine in the past few days. I subsequently had to stop…	8	Feb 1, 2012 07:53	Feb 1, 2012 11:22
MongoDB / C# - Inserting document with an automatically populated timestamp By: Sam Martin I'm trying to insert into a MongoDB collection. I have a data model containing an Id (ObjectId) and a Timestamp (long) as the first two properties. From here (http://www.mongodb.org/display/DOCS/Timestamp+data+type - second para), i understand…	7	Feb 1, 2012 09:04	Feb 1, 2012 23:12
Question on index tree creation By: Vineeth Mohan Hi , I am trying here to get a insight on how the B tree is created. - Lets say i am using a number as a index variable. How will the tree be created with depth =1 or Would it be like this - http://bit.ly/ygwlEp - If so what would be…	1	Feb 1, 2012 10:08	Feb 1, 2012 14:57
Positional Operator Trouble in PHP By: Devin Dixon I am trying house $addToSet, a user ID to a messages.has_read array. My query looks like this in array format: Query: Array ( [$addToSet] => Array ( [messages.$.has_read] => MongoId Object ( [$id] => 4f26fc710a56352159000003 ) ) ) …	12	Feb 1, 2012 10:42	Feb 2, 2012 08:46
mongos in one server and mongo shard and mongod on another By: dimka Hello at all, I am completely new to mongodb so I would like to be excused. I have already installed mongodb in one server(serverA) and did some basic testing. I installed it in a CentOS 5.7 system using the 10gen packages which I guess since I…	2	Feb 1, 2012 12:13	Feb 3, 2012 02:53
Keeping track of position in a capped collection By: oscarBravo I couldn't think of a clearer subject line, so I'll try to explain. I have an application that will need to write a fairly substantial amount of data across a network to a Mongo DB every five minutes or so. This application gathers netflow data -…	2	Feb 1, 2012 12:13	Feb 1, 2012 12:50