Ethan Rose created HDDS-8161:
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Summary: Atomic container filesystem operations
Key: HDDS-8161
URL: https://issues.apache.org/jira/browse/HDDS-8161
Project: Apache Ozone
Issue Type: Improvement
Components: Ozone Datanode
Reporter: Ethan Rose
Parent Jira to track tasks related to using filesystem mv to make changes to
containers atomically without polluting the main container directory that
datanodes require to be in a consistent state. The proposal is one tmp
directory per volume located at {{hdds/<clusterID>/tmp}} which would hold files
and directories under construction. They would then be moved to the working
directory on completion using {{mv}}. The tmp directory would have
subdirectories for each task, for example
{{hdds/<clusterID>/tmp/container-copy}},
{{hdds/<clusterID>/tmp/container-create}} etc. These directories could be
cleaned out on restart or as needed.
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