Janus Chow created HDDS-15946:
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Summary: [Ozone versioning] VersionId generation strategy framework
Key: HDDS-15946
URL: https://issues.apache.org/jira/browse/HDDS-15946
Project: Apache Ozone
Issue Type: Sub-task
Reporter: Janus Chow
Assignee: Janus Chow
This ticket includes the follows tasks:
|*Sub-task*|*Scope*|*Acceptance*|
|T2.1 interface + default strategy|VersionIdGenerator interface;
TRANSACTION_INDEX implementation (transaction-index derivation); the
ozone.om.versioning.version-id-strategy config|monotonic/frozen/0-reserved
constraints unit-tested; default path carries no allocator state (no extra
reads/writes)|
|T2.2 bucket strategy pinning|write the strategy into bucket metadata when
versioning is first enabled; immutable afterwards|changing the cluster config
does not affect already-enabled buckets (unit test); proto compatible|
|T2.3 PINNED_FIRST strategy|first-version detection (no current in keyTable) +
FIRST_VERSION_ID sentinel + configurable rendering (fixed literal /
keyName-derived)|first PUT gets the sentinel, later PUTs get transaction
indexes (unit test); GET ?versionId=0 reads the first version; sentinel does
not collide with the null slot (0)|
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