This is a sample library that does a deep compare of 2 dynamodb tables Utilizes the Parallel Scan API

• The tool assumes some defaults for parallel scan operations but they can be configured from the command (see options below)

• Requires the region and table information for each table to be compared. Output is logged to logs/application.log file : can be configured using log4j.xml

0.1.0

Look at pom.xml to see dependencies

• You need Java 1.8 and Maven installed.
• You also need to be able to access the Dynamodb endpoints from the resource you are going to be running this jar from.
• Currently the code uses AWS Default Identity Provider Chain for ensuring access to dynamodb tables (http://docs.aws.amazon.com/AWSJavaSDK/latest/javadoc/com/amazonaws/auth/DefaultAWSCredentialsProviderChain.html)

$ git clone [git-repo-url] tablecomparator
$ cd tablecomparator
$ mvn clean install 
$ mkdir -p logs/
$ java -cp target/ddb-sample-tool-0.1.0-jar-with-dependencies.jar com.amitgaur.aws.ddb.tools.TableComparator --help

java -cp ddb-sample-tool-0.1.0-jar-with-dependencies.jar com.amitgaur.aws.ddb.tools.TableComparator --region1 eu-west-1 --region2 eu-west-1 --table1 64Parts2Host --table2 64Parts2HostRestore &

• httpTimeout
• segments : Number of parallel segment scans
• itemLimit : Items to be fetched per fetch : rate limiting mechanism on DDB
• maxCons : Max number of http connections
• region1 and table1 : region end point and table name for first table
• region2 and table2 : region end point and table name for second table

Logs are created in the logs directory in a file called application.log

Want to contribute? Great!

• Write Tests
• Add Code Comments
• Add Sample Mode