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4
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1answer
1k views

How to configure replication from PostgreSQL (RDS) to vanilla PostgreSQL?

I have an Amazon RDS Postgres DB and I created a "replicator" user and granted it the "replication" privilege. db=> create role replicator login password 'something'; CREATE ROLE db=> alter ...
0
votes
0answers
73 views

MySQL cluster performance very poor on Amazon

We have currently a project running where we need to store 1 to 20,30 million 500B to 2kB records. We need to use MySQL cluster on 4 EC2 instances (8GB Ram, 2 cores) and ephemeral storage (Records ...
0
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0answers
37 views

AWS - Only Use IOPS as Needed?

We are running an EC2 Instance with MySQL and and IOPS Volume. (We will eventually be upgrading to RDS but this is what we have for now) We have peak times where the IOPS really helps, but the rest ...
2
votes
1answer
99 views

Improving concurrency in MongoDB via sharding

Our current setup: Cluster of ~500 ec2 c1.xLarge worker nodes with 8 threads on each running scientific simulations Results temporarily stored at runtime on each worker node's local MongoDB, using ...
0
votes
1answer
344 views

How to access SQL Server 2012 on EC2 server from my ASP.NET website published on the same EC2 server?

My site is not able to establish a connection to the SQL Server 2012 from EC2. My connection string is as follows: Data Source=AMAZONA-2SSRDM3;Initial Catalog=MyDatabase;Integrated Security=SSPI; ...
1
vote
1answer
221 views

Moving site to amazon EC2 - better to have 1 large instance or 2 medium instances?

I currently have a website which is running on windows 2008 r2 standard along with sql 2012 express. All on the same box. The site gets around 700-900 visits a day,although that is slowly going up ...
2
votes
1answer
898 views

AWS performance of RDS with provisioned IOPS vs EC2

Has anyone done a performance comparison of AWS RDS with the new provisioned IOPS vs EC2? I've found plenty of non-high IOPS RDS vs EC2 but nothing with the new high IOPS feature in RDS.
1
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2answers
1k views

MongoDB - Should I separate the journal and the data to different drives?

I have seen and heard from multiple sources that it can be a good idea, performance-wise, to write your db journal and your data files to separate disks. What's the recommended way to do this (e.g. ...
3
votes
1answer
286 views

Migrating development and production databases to AWS

After careful thinking and asking on meta.stackoverflow, I'm posting this question on the DBA site. If anyone thinks this question should be on serverfault or any other site, feel free to close and ...
1
vote
1answer
378 views

I just upgraded PostgreSQL with yum on Amazon Linux, now PostgreSQL won't start. What do I do?

I just ran yum update on my Amazon Linux instance as part of an upgrade to 2012.09 and it upgraded PostgreSQL from 9.1 to 9.2. Now PostgreSQL won't start. What do I do? (This is a very incomplete ...