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Andrew Wang commented on HDFS-5521: ----------------------------------- I think we still want checksumming for remote reads. TCP / ethernet checksums aren't that strong, and networks are likely a bigger source of errors than disks. > skip checksums when reading a cached block via non-local reads > -------------------------------------------------------------- > > Key: HDFS-5521 > URL: https://issues.apache.org/jira/browse/HDFS-5521 > Project: Hadoop HDFS > Issue Type: Sub-task > Components: datanode > Affects Versions: 3.0.0 > Reporter: Colin Patrick McCabe > Assignee: Colin Patrick McCabe > > The DataNode needs to skip checksumming when reading a cached block via > non-local reads. This is like HDFS-5182, but for non-short-circuit. -- This message was sent by Atlassian JIRA (v6.1#6144)