The nosql tag has no wiki summary.
0
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1answer
40 views
How to Handle 100 Million Users - MySQL or NoSQL [duplicate]
I need a solution for social networking webapp, the DB structure is
users - login credentials.
user_order - user orders.
user_friends - user friends.
We expect a solution to handle 100 ...
0
votes
0answers
22 views
What distributed, horizontally scalable key-value document store is easiest to manage? [closed]
I need a distributed, horizontally-scalable key-value store. It's primarily for documents. No real indexing of the data required - just store a document given a key, and return the document when ...
1
vote
2answers
44 views
How to control databases replicated by Mongo DB replica set
I have 2 databases in my mongo DB namespace, lets name them db1, db2 and db3 which are on the same dbpath.
Is it possible to configure mongo db replica set in that way that db3 wont be replicated ...
0
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2answers
46 views
Install Neo4j via Maven
Neo4j says I can install Neo4j via Maven by adding it to my build:
<dependency>
<groupId>org.neo4j</groupId>
<artifactId>neo4j</artifactId>
...
0
votes
1answer
54 views
Getting exposure to big data without having to set up the environment [closed]
Is anyone aware of any sandbox where an environment is already set up for big data processing?
It can be hadoop, cassandra, pig etc...
I'm a sql server programmer, and trying to get into big ...
0
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0answers
16 views
Is this normal or due to bug in mongodb?
I am new to mongodb and i installed it on xen para virtual vm and when given command
"mongo" terminal freezed and on the top output command mongo is taking almost 100% CPU.
Is this a bug,or does ...
0
votes
1answer
39 views
DB Migration switching from MySQL [closed]
I currently have a massive MySQL Data but would like to move over to Cassandra nosql. How hard of a move over would this be? I've not found any examples yet on this being done. It is possible right.
1
vote
1answer
58 views
Is there a “rigorous” method for choosing a database? [closed]
I'm not experienced with NoSQL, but one person on my team is calling for its use. I believe our data and its usage isn't optimal for a NoSQL implementation.
However, my understanding is based off ...
2
votes
1answer
89 views
Mongodb Slave replication lag
We using standard mongo setup: 2 replicas + 1 arbiter.
Both replica servers use same AWS m1.medium with RAID10 EBS.
We experiencing constantly growing replication lag on secondary replica.
I ...
0
votes
2answers
108 views
How to choose NoSQL database engine?
We have a database with following specs:
30k records, 7mb in size
20 inserts/second
1000 updates/second
1000 range selects/second, by secondary index, approx 10 rows each
needs at least one ...
0
votes
1answer
95 views
Should I use vm or set the maxmemory with Redis' 2.4
In redis 2.4 the vm-enabled no is the default, so I am using redis as database (not cache), and maybe occasionally the db size is larger than the memory, should I enable it?
Or should I enfore ...
2
votes
1answer
192 views
non-mapped virtual memory & total number of connections
We have two MongoDB data nodes (replica set) - Primary & Secondary. I noticed that the non-mapped virtual memory is relatively high and wondering if they are hurting our MongoDB performance (The ...
2
votes
1answer
196 views
How to get the MongoDB' current working set size
From the doc , it said
"For best performance, the majority of your active set should fit in RAM."
So for example, my db.stats() give me
{
"db" : "mydb",
"collections" : 16,
"objects" : 21452,
...
0
votes
1answer
121 views
Large, high performance object or key/value store for HTTP serving on Linux
I have a service that serves images to end users at a very high rate using plain HTTP. The images vary between 4 and 64kbytes, and there are 1.300.000.000 of them in total. The dataset is about 30TiB ...
0
votes
0answers
61 views
Recommendations for 60 gb low-read low-write database? [closed]
We have ~60 gb worth of basic product data over ~130 million records. It's currently in CSV format, with a different CSV for each state.
This has to be stored in a database, but it will never need ...
1
vote
2answers
1k views
pnp4nagios is not creating graph for new services / hosts
I have working nagios infrastructure with pnp4nagios. Last days I added new host nosql and alerts of mongodb which is installed there.
Host configuration:
define host{
host_name ...
0
votes
3answers
667 views
SQLite-like NoSQL option? [closed]
SQLite is nice for small, standalone projects, since the data file is a single object that lives with the project. Most of the NoSQL solutions I've seen are servers that store data there. Is there a ...
2
votes
2answers
486 views
Can I use redis with load balancer?
I am using redis's 1 master & 1 slave.
I also want to use both under load balancer.So that I can make use of both redis server at once.
Also I want to add slave as master's fail over. So can I ...
1
vote
0answers
52 views
What kind of things should I check acting as a DevOp of this app? [closed]
I'm working in the early stages of development of a Foursquare mashup. We get some information using the 4SQ API, but store our own "checkins" in our infrastructure (kind of the 4SQ "Checkin" but ...
0
votes
1answer
401 views
Is it possible to run Joomla in DynamoDB?
I'm trying to find a scalable way to run my Joomla installation with Amazon Web Services. I was very excited with the announcement of DynamoDB, but I'm not sure about the challenges to run Joomla on a ...
0
votes
4answers
308 views
RDBMS: Is it possible to scale out a RDB?
Is it possible to scale out a RDB ?
If it's possible, how can one achieve it?
I'm asking this question because I assisted to a NoSQL event in which the speaker told many times that the one of the ...
0
votes
2answers
75 views
One ColumnFamily places data on only 3 out of 4 nodes
I have posted this on cassandra-user mailing list however didn't get any responses just yet and I was wondering whether someone here on serverfault.com will have any ideas.
I seem to have came across ...
1
vote
0answers
47 views
Archival storage tool: fast, queryable, has api, reliable
I have large quantities of structured data coming in over the network from disparate sources, and that data is archived in the filesystem, parsed/analyzed, and eventually makes it's way into a ...
-1
votes
3answers
348 views
What kind of database should I use because MySQL is not meeting my need? [closed]
Currently, I am using MySQL but I feel it is not keeping up with the stream data that is coming. I have memcached in front of MySQL for caching, but most the data is accessed for single time so the ...
2
votes
4answers
267 views
50,000 file in one directory, what is my best option?
I'm forced to have this directory structure
/var/www/$WEBSITE/$DIR1/$DIR2/$FILES
for each of those $FILES, there is approx 50,000 XHTML pages.
I'm running Cherokee, which has new front-end caching ...
2
votes
3answers
157 views
Database which only holds indexes and last X records in memory?
I'm looking for a data store that is very memory efficient while still allowing many object changes per second and disregarding ACID compliance for the last X records.
I need this database for a ...
-1
votes
1answer
215 views
Is it correct to say that using MySQL running on SSD disk on a server makes it comparable in performance to NoSQL Db? [closed]
As it is well known performance impact is quite significant when using the new SSD as opposed the old disk drives. If MySQL database including all the data is on SSD, how does that compare to NoSQL ...
0
votes
3answers
510 views
RedisToGo - remote Redis server. When to use one?
I like the concept of relying on third-party service hosting my data but what's the point of using super-fast NoSQL storage via remote hosting?
It maybe in different datacenter or even country! And ...
4
votes
3answers
324 views
What are the options for establishing a VLAN to support database sharding and replication?
Background: I'm writing a web application that will be available to the world at large on a software-as-a-service basis. As input to my choosing a database platform, I've been reading up on 'NoSQL' ...
4
votes
0answers
165 views
What does it mean when Twitter says their entire database is in RAM?
I am wondering where to begin with database scaling/optimization strategies. After reading articles like highscalability.com's facebook architecture article, and this twitter architecture article, I ...
3
votes
5answers
813 views
What does it mean when Twitter says their entire database is in RAM?
I am wondering where to begin with database scaling/optimization strategies. After reading articles like highscalability.com's facebook architecture article, and this twitter architecture article, I ...
1
vote
1answer
284 views
Unable to connect to cassandra when using the AllowAllAuthenticator
I installed cassandra on a VM running Ubuntu Server 10.10.
cassandra login failure with org.apache.cassandra.auth.AllowAllAuthenticator but I always receive the following error message:
Login ...
0
votes
1answer
220 views
Getting a hosting provider if i use NoSQL technologies
My current system is being developed in codeignitor and MySQL. But we are adding Redis, Solr and either Cassandra or mongodb for some data structure storage. So the big question i am lost now if this ...
3
votes
6answers
462 views
How to achieve zero down time
For an application we want to achieve zero database and application down time using Active Active configuration. Our dB is Oracle
Following are my questions:
How can we achieve active active ...
0
votes
1answer
179 views
long dataset of small rows — infrequent writes, very frequent reads — what's the best platform?
A part of the platform I am building requires a large data table (starting at tens of millions of records, scaling to hundreds of millions within a year or two, maybe reaching billions at some point). ...
0
votes
1answer
626 views
Couchdb failing test suite on Linux
I've been trying to install CouchDB on my webfusion virtual server. I followed the latest instructions from the webfusion forum (see: http://forum.webfaction.com/viewtopic.php?id=2355 ) and it runs ...
3
votes
3answers
176 views
Suggestions for spatial database systems [closed]
I'm looking for suggestions on a database for large sets of spatial master data. The data itself is not relational, but could be formulated as such. The data as-is is structed as:
latitude, ...
0
votes
1answer
206 views
Alternative Logging applications for Ubuntu
I am trying to find another logging application that will allow me to log to CouchDb.
I am currently using rsyslog which is fine for logging to a mysql but doesnt seem to want to allow me to log ...
2
votes
2answers
179 views
Pairing MySQL and NoSQL Solutions
We have some fairly large datasets (user events and server log information - >100 GB) that's becoming fairly unwieldy for data processing. I've seen lots of activity around NoSQL/Hadoop/etc and I was ...
2
votes
2answers
212 views
High performance, fast yet Durable databases?
Up until recently I was using mongo to try and stem to tide of massive MySQL upgrades to system servers, however, after reading this:
...
1
vote
2answers
576 views
master-slave datastore replication, automatic failover, and wackamole
I have 2 dedicated servers provisioned for my next project's datastores. The datastores are configured for master-slave replication. There's no inherent automatic failover but I of course want this. ...
2
votes
3answers
2k views
Tokyo Tyrant ulog / update log management
I'm testing Tokyo Tyrant in a master-master setup and have found the ulog grows out of control and locks up the disk.
At first I found the -ulim option useful and limited the logfile size, however it ...
