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Todd Lipcon commented on HDFS-1001: ----------------------------------- This is a bug on the datanode side, right? The tests from HDFS-877 at least ensure that CHECKSUM_OK works properly where it's supposed to. > DataXceiver and BlockReader disagree on when to send/recv CHECKSUM_OK > --------------------------------------------------------------------- > > Key: HDFS-1001 > URL: https://issues.apache.org/jira/browse/HDFS-1001 > Project: Hadoop HDFS > Issue Type: Bug > Affects Versions: 0.22.0 > Reporter: bc Wong > > Running the TestPread with additional debug statements reveals that the > BlockReader sends CHECKSUM_OK when the DataXceiver doesn't expect it. > Currently it doesn't matter since DataXceiver closes the connection after > each op, and CHECKSUM_OK is the last thing on the wire. But if we want to > cache connections, they need to agree on the exchange of CHECKSUM_OK. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.