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ERMS: Elastic Replication Management System for HDFS

ERMS: Elastic Replication Management System for HDFS. Zhendong Cheng. Data in HDFS changes in popularity over time Hot data Clod data Normal data T he replication policy of HDFS should be adapted to data popularity increase extra replicas for hot data

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ERMS: Elastic Replication Management System for HDFS

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  1. ERMS: Elastic Replication Management System for HDFS Zhendong Cheng • Data in HDFS changes in popularity over time • Hot data • Clod data • Normal data • The replication policy of HDFS should be adapted to data popularity • increase extra replicas for hot data • use erasure codes for cold data Beihang University

  2. ERMS: Elastic Replication Management System for HDFS Zhendong Cheng Beihang University

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