Suresh Srinivas created HDFS-4645:
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Summary: Move from randomly generated block ID to sequentially
generated block ID
Key: HDFS-4645
URL: https://issues.apache.org/jira/browse/HDFS-4645
Project: Hadoop HDFS
Issue Type: Improvement
Components: namenode
Affects Versions: 3.0.0
Reporter: Suresh Srinivas
Assignee: Suresh Srinivas
Currently block IDs are randomly generated. This means there is no pattern to
block ID generation and no guarantees such as uniqueness of block ID for the
life time of the system can be made. I propose using SequentialNumber for block
ID generation.
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