[Zebra] Can Zebra use HAR to reduce file/block count for namenode
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Key: PIG-1411
URL: https://issues.apache.org/jira/browse/PIG-1411
Project: Pig
Issue Type: New Feature
Components: impl
Affects Versions: 0.8.0
Reporter: Gaurav Jain
Priority: Minor
Fix For: 0.8.0
Due to column group structure, Zebra can create extra files for namenode to
remember. That means namenode taking more memory for Zebra related files.
The goal is to reduce the no of files/blocks
The idea among various options is to use HAR ( Hadoop Archive ). Hadoop Archive
reduces the block and file count by copying data from small files ( 1M, 2M
...) into a hdfs-block of larger size. Thus, reducing the total no. of blocks
and files.
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