Weiwei Yang created HDFS-12282:
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Summary: Ozone: DeleteKey-4: SCM periodically sends block deletion
message to datanode via HB and handles response
Key: HDFS-12282
URL: https://issues.apache.org/jira/browse/HDFS-12282
Project: Hadoop HDFS
Issue Type: Sub-task
Components: datanode, ozone, scm
Reporter: Weiwei Yang
Assignee: Weiwei Yang
This is the task 3 in the design doc, implements the SCM to datanode
interactions. Including
# SCM sends block deletion message via HB to datanode
# datanode changes block state to deleting when processes the HB response
# datanode sends deletion ACKs back to SCM
# SCM handles ACKs and removes blocks in DB
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