Nick Allen created METRON-2175:
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Summary: Introduce HBase Connection Abstractions for HBase 2.0.2
Key: METRON-2175
URL: https://issues.apache.org/jira/browse/METRON-2175
Project: Metron
Issue Type: Sub-task
Reporter: Nick Allen
The major change with HBase in migrating Metron to 2.0.2 is that connection
management must now be managed by the client. Previously this was managed
internally within the HBase client.
More specifically, previously you could just instantiate a Table whenever you
like and not worry about closing it. Now you must first establish a Connection
and from that Connection, you can create a Table. Both of those need to be
closed after use. A Connection can be shared by multiple threads, but a Table
cannot be shared.
Most of our existing abstractions were not designed to handle connection
management, specifically closing the Connection and Table resources after use.
This is why the HBase upgrade is quite involved.
This Jira will introduce the new abstractions that allow Metron to interact
with HBase 2.0.2, but not remove the existing ones. I will then introduce
additional issues to start using these new abstractions in the Metron code
base. Finally, the existing abstractions that do not work with HBase 2.0.2
will be removed as a final step.
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