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For some reason after run the command in the book, the Hadoop job is failed, I checked job log and it just says launch app failed and throw out lots of exception and keep retry many times.

I couldn't figure out where is the issue, originally I thought is my laptop issue, after tried few laptops and I can sure the example in the book has some issue.

This makes me frustrated, I start skipping the examples you provide just read it and get some ideas.

 deploy/samza/bin/run-app.sh \ --config-factory=org.apache.samza.config.factories.PropertiesConfigFactory \ --config-path=file://$PWD/deploy/samza/config/nile-carts.properties