Sushanth Sowmyan created HIVE-4524:
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Summary: Make the Hive HBaseStorageHandler work under HCat
Key: HIVE-4524
URL: https://issues.apache.org/jira/browse/HIVE-4524
Project: Hive
Issue Type: Bug
Components: HBase Handler, HCatalog
Reporter: Sushanth Sowmyan
Assignee: Sushanth Sowmyan
Currently, HCatalog has its own HCatHBaseStorageHandler that extends from
HBaseStorageHandler to allow for StorageHandler support, and does some
translations, like org.apache.mapred->org.apache.mapreduce wrapping, etc.
However, this compatibility layer is not complete in functionality as it still
assumes the underlying OutputFormat is a mapred.OutputFormat implementation as
opposed to a HiveOutputFormat implementation, and it makes assumptions about
config property copies that implementations of the HiveStorageHandler, such as
the HBaseStorageHandler do not do.
To fix this, we need to improve the ability for HCat to properly load
native-hive-style StorageHandlers.
Also, since HCat has its own HBaseStorageHandler and we'd like to not maintain
two separate HBaseStorageHandlers, the idea is to deprecate HCat's storage
handler over time, and make sure that hive's HBaseStorageHandler works properly
from HCat, and over time, have it reach feature parity with the HCat one.
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