Chen Liang created HDFS-12989:
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Summary: Ozone: Container : Add key versioning support-4
Key: HDFS-12989
URL: https://issues.apache.org/jira/browse/HDFS-12989
Project: Hadoop HDFS
Issue Type: Improvement
Components: ozone
Reporter: Chen Liang
Assignee: Chen Liang
After HDFS-12925 and HDFS-12954 get added, every key write call will generate a
new version, and we will be able to read any specific version of a key. This
JIRA adds a new newKeyReader API {{newKeyReaderWithVersion}} to
{{StorageHandler}}. This method takes an extra version field such that the
caller can read any older version. This JIRA also adds all the other changes
needed.
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