James Thomas created HDFS-6482: ---------------------------------- Summary: Use block ID-based block layout on datanodes Key: HDFS-6482 URL: https://issues.apache.org/jira/browse/HDFS-6482 Project: Hadoop HDFS Issue Type: Improvement Components: datanode Affects Versions: 2.5.0 Reporter: James Thomas Assignee: James Thomas Fix For: 2.5.0
Right now blocks are placed into directories that are split into many subdirectories when capacity is reached. Instead we can use a block's ID to determine the path it should go in. This eliminates the need for the LDir data structure that facilitates the splitting of directories when they reach capacity as well as fields in ReplicaInfo that keep track of a replica's location. -- This message was sent by Atlassian JIRA (v6.2#6252)