The Busy RDS tool is designed to help engineers simulate various use-cases related to Amazon Relational Database Service (RDS). This application simplifies the process of setting up and testing different features of RDS, enhancing the speed at which engineers can work and innovate.
Amazon RDS provides a plethora of features to enhance the resilience and availability of databases. However, setting up the pre-requisite activities for these features can be time-consuming. The Busy RDS tool helps engineers test these features efficiently, enabling faster development and deployment cycles.
Busy RDS supports the following simulations:
- Dummy Data Generator
- RDS Failover Simulator
This simulation creates dummy data for a specific database server. The process involves creating a new database, building a new table, and then populating it with dummy data based on the test_run parameter.
- database.dsn : Connection string to the database.
- test_run : Number of dummy data records to create.
...
2023/06/13 01:43:45 Insert: LfErcYv@qiimqdI.ru success
2023/06/13 01:43:46 Insert: FGLjTjq@TkrFxnE.ru success
2023/06/13 01:43:46 Insert: shQoxsk@LaaJdPt.info success
2023/06/13 01:43:47 Insert: IWdGPXH@bindYrA.info success
2023/06/13 01:43:47 Insert: GZRfvXZ@Jnrhsuj.com success
2023/06/13 01:43:48 Insert: TtBVhtI@pGhIvxh.net success
...
- Create a
config.jsonfile with the required configuration information. - Start the application using the command:
go run main.go -usecase 1
This simulation tests the behavior of Aurora during a failover event. It starts by writing data continuously at a normal day's request per second (RPS) rate. In the event of a failover, the simulation will attempt to retry the insert operation until a connection to the new writer is established.
- database.dsn : Connection string to the database.
- test_run : Number of dummy data records to create.
- rps : Number of requests per second (typical RPS for the application).
- max_retry : Number of times the application should attempt to write in case of failure.
- delay_retry : Time the application should wait before retrying.
Example 1: Application not cache the DNS or cache released at the same time the new instance ready
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2023/06/13 01:43:55 Insert: EkSJfxm@uPYqRyB.net success
2023/06/13 01:43:56 Insert: uIiJsXW@LuxRPqV.net success
2023/06/13 01:43:58 Failed to insert: fJhsibD@UaHySaY.net. Error: dial tcp 13.228.85.227:5432: connect: connection refused. Retrying (1/20)...
2023/06/13 01:43:59 Failed to insert: fJhsibD@UaHySaY.net. Error: dial tcp 13.228.85.227:5432: connect: connection refused. Retrying (2/20)...
2023/06/13 01:44:00 Failed to insert: fJhsibD@UaHySaY.net. Error: dial tcp 13.228.85.227:5432: connect: connection refused. Retrying (3/20)...
2023/06/13 01:44:01 Failed to insert: fJhsibD@UaHySaY.net. Error: dial tcp 13.228.85.227:5432: connect: connection refused. Retrying (4/20)...
2023/06/13 01:44:02 Failed to insert: fJhsibD@UaHySaY.net. Error: dial tcp 13.228.85.227:5432: connect: connection refused. Retrying (5/20)...
2023/06/13 01:44:03 Failed to insert: fJhsibD@UaHySaY.net. Error: dial tcp 13.228.85.227:5432: connect: connection refused. Retrying (6/20)...
2023/06/13 01:44:04 **DownTime: 6330ms**
2023/06/13 01:44:04 Insert: fJhsibD@UaHySaY.net success
2023/06/13 01:44:05 Insert: ddZxldB@HJEiRLg.info success
...
Example 2: Application cache the DNS
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2023/06/19 00:42:40 RDS address: 13.228.85.227
...
2023/06/19 00:42:46 Insert: toTdGMs@DQgZpUH.biz success
2023/06/19 00:42:46 Insert: lPoNgDT@QKhNere.net success
2023/06/19 00:42:47 Insert: doyEoaX@GXcdihg.com success
2023/06/19 00:42:49 Failed to insert: eFfTjPx@UEGubMY.net. Error: [dial tcp 13.228.85.227:5432: connect: connection refused]. Retrying (1/60)...
2023/06/19 00:42:50 Failed to insert: eFfTjPx@UEGubMY.net. Error: [dial tcp 13.228.85.227:5432: connect: connection refused]. Retrying (2/60)...
2023/06/19 00:42:51 Failed to insert: eFfTjPx@UEGubMY.net. Error: [dial tcp 13.228.85.227:5432: connect: connection refused]. Retrying (3/60)...
2023/06/19 00:42:52 Failed to insert: eFfTjPx@UEGubMY.net. Error: [dial tcp 13.228.85.227:5432: connect: connection refused]. Retrying (4/60)...
2023/06/19 00:42:53 Failed to insert: eFfTjPx@UEGubMY.net. Error: [dial tcp 13.228.85.227:5432: connect: connection refused]. Retrying (5/60)...
2023/06/19 00:42:54 Failed to insert: eFfTjPx@UEGubMY.net. Error: [dial tcp 13.228.85.227:5432: connect: connection refused]. Retrying (6/60)...
2023/06/19 00:42:55 Failed to insert: eFfTjPx@UEGubMY.net. Error: [dial tcp 13.228.85.227:5432: connect: connection refused]. Retrying (7/60)...
2023/06/19 00:42:58 Failed to insert: eFfTjPx@UEGubMY.net. Error: [pq: the database system is starting up]. Retrying (8/60)...
2023/06/19 00:42:59 Failed to insert: eFfTjPx@UEGubMY.net. Error: [pq: cannot execute INSERT in a read-only transaction]. Retrying (9/60)...
2023/06/19 00:42:59 RDS address: 13.228.85.227
2023/06/19 00:43:00 Failed to insert: eFfTjPx@UEGubMY.net. Error: [pq: cannot execute INSERT in a read-only transaction]. Retrying (10/60)...
2023/06/19 00:43:01 RDS address: 13.251.145.43
2023/06/19 00:43:02 DownTime: 13303ms
2023/06/19 00:43:02 Insert: eFfTjPx@UEGubMY.net success
2023/06/19 00:43:03 Insert: qbDwKIy@OaVfDwL.org success
...
- Create a
config.jsonfile with the required configuration information. - Start the application using the command:
go run main.go -usecase 2