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Comment: thread safe note

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The HCatalog data transfer API is designed to facilitate integration of external systems with Hadoop.

Note: HCatalog is not thread safe.

HCatReader

Reading is a two-step process in which the first step occurs on the master node of an external system. The second step is done in parallel on multiple slave nodes.

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Previous: Input and Output Interfaces
Next: Command Line Interface

General: HCatalog Manual – WebHCat Manual – Hive Wiki Home – Hive Project Site
Old version of this document (HCatalog 0.5.0): Reader and Writer Interfaces