so that the Hadoop and HBase daemons can be managed.You must be able to connect to all nodes via SSH, including the local node, from the Master as well as any backup Master, using a shared key rather than a password.This quickstart assumes that each node is a virtual machine and that they are all on the same network.
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In the context of Apache HBase, /not tested/ means that a feature or use pattern may or may not work in a given way, and may or may not corrupt your data or cause operational issues. If you can provide proof that a feature designated as /not tested/ does work in a given way, please submit the tests and/or the metrics so that other users can gain certainty about such features or use patterns.
instance has all HBase daemons — the Master, Region Servers, and Zoo Keeper — running in a single JVM persisting to the local filesystem. We will show you how to create a table in HBase using the Prior to HBase 0.94.x, HBase expected the loopback IP address to be 127.0.0.1.
In the context of Apache HBase, /not supported/ means that a use case or use pattern is not expected to work and should be considered an antipattern.
If you think this designation should be reconsidered for a given feature or use pattern, file a JIRA or start a discussion on one of the mailing lists.
Someone on that list will contact you to follow up on your report.
The phrases /supported/, /not supported/, /tested/, and /not tested/ occur several places throughout this guide.
The file contains many commented-out examples to provide guidance.
, or another secure mechanism for copying the configuration files to your nodes.
You will also need to do a recalibration if up to this your computing has been bound to a single box.
Here is one good starting point: Fallacies of Distributed Computing.
Familiarize yourself with Support and Testing Expectations as well.