bypass-inconsistency-demo

A demonstration of an apparent inconsistency in HBase's ObserverContext.bypass() method.

To see the logic behind this test, look to src/main/java/demonstration/BypassDemonstration.java.

Running this demonstration

To run the demonstration for yourself:

1. Clone the repository to your machine: git clone [email protected]:hwh33/bypass-inconsistency-demo.git
2. Use gradle to run the main method of BypassDemonstration: gradle run

Gradle will download any dependencies you are missing, compile the project, and run the demonstration. You will see the final output "Test complete, all assertions held true." which indicates that the assertions (which demonstrate inconsistencies in the bypass method) held true.

Running this demonstration against an HBase cluster

Simply using the 'gradle run' command runs the demo using HBase's in-memory testing utility. To run the demo against an actual HBase cluster, you need to specify "against-cluster" mode and provide the path to the Hadoop configuration file for the cluster.

The command should look like: gradle run -Pargs=against-cluster,/path/to/config-file

Packaging as an executable JAR

To create an executable JAR, run: gradle shadowJar

The JAR will be located at build/libs/BypassTest-all.jar. It can be run by executing: java -jar build/libs/BypassTest-all.jar

This JAR file contains all of the necessaery dependencies, so you can run it anywhere and point it to your HBase configuration file: java -jar BypassTest-all.jar against-cluster /path/to/config-file