CHchristkv·Nov 6, 2011
there's an initial hadoop plugin for mongo that might be a better fit for doing map-reduce over large datasets https://github.com/mongodb/mongo-hadoop
In Don't use MongoDBmongodb
mongo-hadoop
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mongodb / mongo-hadoop · Archived
mongo-hadoop
MongoDB Connector for Hadoop
3Distinct people
3Mentions
0Explicit recommenders
1.5KGitHub stars
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MongoDB Connector for Hadoop
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This week on Hacker News
Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 3:56:07 PM UTC.
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Mentions over time
HN mentions by week3 dated mentions
Observed mentions: 2011-06-10 08:06:01 UTC to 2011-11-06 13:49:56 UTC. Weeks start Monday, UTC.
Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.
View mention counts and date ranges
| Period | Start (UTC) | End (exclusive, UTC) | Mentions | Submissions | Comments |
|---|---|---|---|---|---|
| Jun 6 | 2011-06-06 00:00:00 UTC | 2011-06-13 00:00:00 UTC | 1 | 0 | 1 |
| Jun 13 | 2011-06-13 00:00:00 UTC | 2011-06-20 00:00:00 UTC | 0 | 0 | 0 |
| Jun 20 | 2011-06-20 00:00:00 UTC | 2011-06-27 00:00:00 UTC | 0 | 0 | 0 |
| Jun 27 | 2011-06-27 00:00:00 UTC | 2011-07-04 00:00:00 UTC | 0 | 0 | 0 |
| Jul 4 | 2011-07-04 00:00:00 UTC | 2011-07-11 00:00:00 UTC | 0 | 0 | 0 |
| Jul 11 | 2011-07-11 00:00:00 UTC | 2011-07-18 00:00:00 UTC | 0 | 0 | 0 |
| Jul 18 | 2011-07-18 00:00:00 UTC | 2011-07-25 00:00:00 UTC | 0 | 0 | 0 |
| Jul 25 | 2011-07-25 00:00:00 UTC | 2011-08-01 00:00:00 UTC | 0 | 0 | 0 |
| Aug 1 | 2011-08-01 00:00:00 UTC | 2011-08-08 00:00:00 UTC | 0 | 0 | 0 |
| Aug 8 | 2011-08-08 00:00:00 UTC | 2011-08-15 00:00:00 UTC | 0 | 0 | 0 |
| Aug 15 | 2011-08-15 00:00:00 UTC | 2011-08-22 00:00:00 UTC | 0 | 0 | 0 |
| Aug 22 | 2011-08-22 00:00:00 UTC | 2011-08-29 00:00:00 UTC | 0 | 0 | 0 |
| Aug 29 | 2011-08-29 00:00:00 UTC | 2011-09-05 00:00:00 UTC | 0 | 0 | 0 |
| Sep 5 | 2011-09-05 00:00:00 UTC | 2011-09-12 00:00:00 UTC | 0 | 0 | 0 |
| Sep 12 | 2011-09-12 00:00:00 UTC | 2011-09-19 00:00:00 UTC | 0 | 0 | 0 |
| Sep 19 | 2011-09-19 00:00:00 UTC | 2011-09-26 00:00:00 UTC | 1 | 0 | 1 |
| Sep 26 | 2011-09-26 00:00:00 UTC | 2011-10-03 00:00:00 UTC | 0 | 0 | 0 |
| Oct 3 | 2011-10-03 00:00:00 UTC | 2011-10-10 00:00:00 UTC | 0 | 0 | 0 |
| Oct 10 | 2011-10-10 00:00:00 UTC | 2011-10-17 00:00:00 UTC | 0 | 0 | 0 |
| Oct 17 | 2011-10-17 00:00:00 UTC | 2011-10-24 00:00:00 UTC | 0 | 0 | 0 |
| Oct 24 | 2011-10-24 00:00:00 UTC | 2011-10-31 00:00:00 UTC | 0 | 0 | 0 |
| Oct 31 | 2011-10-31 00:00:00 UTC | 2011-11-07 00:00:00 UTC | 1 | 0 | 1 |
What Hacker News says
3 sourcesThere are a few projects in the works to improve the experience for doing aggregation and analysis with data stored in MongoDB:
- Using V8 instead of spidermonkey [Will probably lead to better performance for MongoDB's map reduce]
https://jira.mongodb.org/browse/SERVER-2407
- New aggregation framework [Will make it easy and fast to do simple aggregations]
https://jira.mongodb.org/browse/SERVER-447
There is also Hadoop adapter that read and write directly from/to MongoDB that is in an early stage
https://github.com/mongodb/mongo-hadoop
In Realtime Analytics Using MongoDB, Python, Gevent, and ZeroMQ (slides and video)In addition to supporting multi-threaded map-reduce, it'd be nice if they
1-
Eliminate any memory limits on inline map reduce, or bring back output to temporary collections. If they bring back output to temporary tables, allow them to be run on slaves and not participate in replication
2-
Polished and released a production-ready version of their MongoDB Hadoop Adapter: https://github.com/mongodb/mongo-hadoop
In Ten things I didn’t know about MongoDB