WIP ALERT This is a work in progress.

If on Java 8, stop using java.util.Date and Joda-Time. Use the new java.time API.


References

  • [Java SE8 Date and Tim

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Some kinds of EC2 Instances only support EBS datastores. If you plan on using one of these, you will need to format the volume (so it can be used as a filesystem) and them mount it to a path in your system.

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WIP ALERT This is a work in progress

These are some common CLI commands you will probably find yourself in need of when using Amazon Elastic MapReduce (EMR for short). It is assumed that you have a functioning AWS

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WIP ALERT This is a work in progress.

If you use hadoop in cluster mode (i.e. more than a single node), you may have your output split into several files with names such as "part-r-00000", "part-r-00001"and so

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A couple of things about how to connect with your customers/end users.

Each channel has a specific target audience and people expect different things from each.

Twitter

They want to know about it as soon as it

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