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Konstantin Shvachko commented on HDFS-333: ------------------------------------------ It is still valid. It would formalize and simplify block life cycle management. > A State Machine for name-node blocks. > ------------------------------------- > > Key: HDFS-333 > URL: https://issues.apache.org/jira/browse/HDFS-333 > Project: Hadoop HDFS > Issue Type: Improvement > Reporter: Konstantin Shvachko > > Blocks on the name-node can belong to different collections like the > blocksMap, under-replicated, over-replicated lists, etc. > It is getting more and more complicated to keep the lists consistent. > It would be good to formalize the movement of the blocks between the > collections using a state machine. -- This message was sent by Atlassian JIRA (v6.2#6252)