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Run If this is your first foray into the wonderful world of Distributed Computing, then you are in for some interesting times.
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.
, or another secure mechanism for copying the configuration files to your nodes.
For most configurations, a restart is needed for servers to pick up changes.
Pseudo-distributed mode means that HBase still runs completely on a single host, but each HBase daemon (HMaster, HRegion Server, and Zoo Keeper) runs as a separate process: in standalone mode all daemons ran in one jvm process/instance.
By default, unless you configure the This procedure assumes that you have configured Hadoop and HDFS on your local system and/or a remote system, and that they are running and available. The guide on Setting up a Single Node Cluster in the Hadoop documentation is a good starting point.
Your cluster’s operation can hiccup because of any of a myriad set of reasons from bugs in HBase itself through misconfigurations — misconfiguration of HBase but also operating system misconfigurations — through to hardware problems whether it be a bug in your network card drivers or an underprovisioned RAM bus (to mention two recent examples of hardware issues that manifested as "HBase is slow").
You will also need to do a recalibration if up to this your computing has been bound to a single box.
Herein you will find either the definitive documentation on an HBase topic as of its standing when the referenced HBase version shipped, or it will point to the location in Javadoc or JIRA where the pertinent information can be found. The source for this guide can be found in the _src/main/asciidoc directory of the HBase source.
This reference guide is marked up using Ascii Doc from which the finished guide is generated as part of the 'site' build target.
The Apache HBase team assumes no responsibility for your HBase clusters, your configuration, or your data.
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.
Script for Windows and Linux / Unix environments to set up the working environment for HBase, including the location of Java, Java options, and other environment variables.