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5
votes
3answers
1k views

How to store many smallish time-series in a relational DB?

Input Data Multiple Tests Beds generate measurement data of various complexity. In it's most basic form, not considering any meta-data, one measurement on a Test Bed will be a small (1 - a few ...
-3
votes
1answer
85 views

Are database servers less scalable than web servers? [closed]

Isn't it possible to scale database servers through virtualization, like forever? I like to keep most of the workload on database server because it optimizes queries and the architecture decreases the ...
1
vote
2answers
3k views

Stress test MySQL with queries captured with general log in MySQL

Is there any tool available which can do stress testing using the log file created by MySQL general log? After a lot of search on google I found few stress testing tools which only use some benchmarks ...
2
votes
1answer
366 views

How to scale MySQL transaction wrapped queries?

So I'm working on an app that wraps many of it's SQL queries in a transaction for it's SQL usage and I'm trying to think of some ways to scale the DB layer up.... Up until now we've been throwing ...
4
votes
1answer
482 views

NuoDB with Amazon S3

I think about developing my new mobile and web app against NuoDB. I believe in their technology. The thing that I care the most is backup and restore in case of data corruption and read / write speed ...
4
votes
1answer
4k views

Very Slow MySQL Queries, even with indexes

I have a relatively large 4-deep relational data setup like this: client_applications: (potentially 1,000's of records)    - ...    - account_id    - ...
0
votes
1answer
120 views

Looking for a scalable relational database [closed]

I'm looking for a database that achieves the following: fully ACID. relational with joins. has transactions. allows the administrator to specify sharding rules (for example: users from Europe should ...
8
votes
1answer
4k views

What are the practical limitations on a column family in Cassandra?

In Cassandra, it's not recommended to have more than a few thousand column families, let's say 2,000 for the sake of argument. In cases where more than 2,000 types of data need to be persisted, one ...
5
votes
1answer
2k views

Postgres scalability - What is the impact of connection pooling?

We had a question over on Server Fault that raised an interesting question: In light of the scalability improvements in Postgres 9.2 scalability improvements, is it better to use connection pooling ...
3
votes
2answers
2k views

Which is better for long term database scalability: adding columns or having key/value store

For application, which has few (5-10) settings at the moment but will have a lot more (up to 100) in the future which would be better approach: to add new columns to settings table every time new ...
1
vote
1answer
2k views

What are the pros and cons of using CLIENT_RESULT_CACHE_SIZE and RESULT_CACHE_MODE

I have multiple questions For Oracle Database 11g Release 11.2.0.1.0 what are the benefits of using CLIENT_RESULT_CACHE_SIZE and RESULT_CACHE_MODE. How will the CLIENT side cache be kept sync if ...
5
votes
2answers
5k views

Proper storage size estimation technique for PostgreSQL

We are preparing a PostgreSQL database for production usage and we need to estimate the storage size for this database. We are a team of developers with low expertise on database administration, so we ...
1
vote
4answers
770 views

database sharding on mysql

I need to do database sharding(horizontal) based on MySQL. My database schema is as following: I have tables A,B,C A,B is Global(which need not to be sharding) C have huge data so it need to be ...
16
votes
3answers
10k views

What does horizontal scaling mean?

In database context, I have come across horizontal scalability as one of the advantages of the NOSQL databases. What does the term mean? http://en.wikipedia.org/wiki/CouchDB http://en.wikipedia.org/...
3
votes
0answers
288 views

SQL Server 2008 R2 - Merge Replication - Can the Distribution Database size cause replication problems?

Setup: We have a SQL Server 2008 R2 instance running on a central server. The server is a merge-replication publisher. We have 'N' subsribers running SQL Server 2008 Express. 'N' can grow to any ...
2
votes
2answers
2k views

MySQL Cluster On Cloud vs MySQL Cluster On Dedicated Cluster

I saw this interesting article : http://mikaelronstrom.blogspot.com/2012/02/105bn-qpm-using-mysql-cluster-72.html and it made me get interested in MySQL Cluster. After little chat with hosting ...
1
vote
1answer
454 views

MySQL table locks solution -> InnoDb / Partitions

I'm experiencing many table locks in a MyISAM MySQL table that is pretty big (Constx10xGB and 15M rows). It's mainly caused due many heavy inserts. My current thoughts to optimize: Changing to ...
3
votes
2answers
854 views

Scalable DBaaS that can scale to hundreds of terabytes with easy backup and restore

I've gone over many DBaaS solutions, including Xeround (limited to 50G, in memory), NuoDB (currently in beta 7), DrawnToScale (not out yet), MongoDB (in memory), RavenDB (for ASP.NET, but NoSQL) and ...
5
votes
1answer
807 views

Database as a service (DbaaS) over dimensions--performance, scalability, & reliability?

MySql Database as a service: Amazon Xeround Another eg. PostgreSQL Database-as-a-Service. You can get the list of similar products here. Does anyone have details on their performance, reliability,...
2
votes
2answers
188 views

A Huge Database: Picking the right schema and data model

We want to store some genomic variant data but there are some problems, more important ones like problem of the data's immense size and variability. 1) Variant data can be huge. For example, a single ...
3
votes
1answer
301 views

to what “scale” of applications does nosql support?

Recently i came across the Nosql database concept, though i learnt how to and why of it, i did not get a proper answer to the question , to what scale of project does it support? Will it support ...
14
votes
3answers
16k views

Why can't relational databases meet the scales of Big Data?

It is often repeated that the Big Data problem is that relational databases can not scale to process the massive volumes of data that are now being created. But what are these scalability limitations ...
10
votes
3answers
6k views

Database suggestion for a social network/ knowledge base community?

I am looking into various database types and DBMS's for a new project I am wanting to start in the summer. I have built systems in MySQL and postgreSQL , now I am wanting to expand my knowledge and ...
7
votes
3answers
8k views

How does one scale SQL Server 2008 or 2012?

How does one scale SQL Server 2008 (or 2012)? At its basic, I understand there are two options: Scale up: If CPU bound, I can clearly see going from 1 CPU core to 2 to 4. Or if RAM usage rockets, ...
4
votes
3answers
3k views

MySQL tables/databases into different disks

I am aware that there is a possibility to have a single database server with many tables/databases, and you can separate some of those tables/databases into separate disks. Lets say you have 5 tables/...
8
votes
3answers
2k views

SQL Server - Multiple running totals

I've got a base table with transactions and I need to create a table with running totals. I need them to be per account and and also have a few running totals for each account (depending on the ...
1
vote
1answer
2k views

64 bit Postgres 9.1 Limitions on Windows 2008 R2?

When Deploying Postgres on Windows Server 2008 R2: Are there any limitations on windows that don't exist on Linux? Does the postgres scale in the same way on windows as it does on Linux? Is ...
1
vote
1answer
224 views

Multiple Partition Keys?

This is a follow-on from a previous question. I've never worked with SQL Server partitioning but I currently faced with designing a database for which the volumes probably warrant it. The system is ...
10
votes
3answers
3k views

Testing stored procedure scalability

I have an email application that will be called upon to deliver to the UI the number of new messages for a given user on each page load. I have a few variations of things I am testing on the DB level ...