Liyin Tang created HBASE-15482:
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Summary: Provide an option to skip calculating block locations for
SnapshotInputFormat
Key: HBASE-15482
URL: https://issues.apache.org/jira/browse/HBASE-15482
Project: HBase
Issue Type: Improvement
Components: mapreduce
Reporter: Liyin Tang
Priority: Minor
When a MR job is reading from SnapshotInputFormat, it needs to calculate the
splits based on the block locations in order to get best locality. However,
this process may take a long time for large snapshots.
In some setup, the computing layer, Spark, Hive or Presto could run out side of
HBase cluster. In these scenarios, the block locality doesn't matter.
Therefore, it will be great to have an option to skip calculating the block
locations for every job. That will super useful for the Hive/Presto/Spark
connectors.
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