THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
Definition
An item in the `Hudi` ingestion processing timelineA log of def~instant-actions that are performed on a def~table, ordered by def~instant-time.
Design details
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At its core, Hudi maintains a |
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def~instant-action performed on the def~table at different |
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- def~instant-action-type: Type of action performed on the def~table
- def~instant-time: typically a timestamp (e.g: 20190117010349), which monotonically increases in the order of action’s begin time.
- instant state: current state of the 135861679
Design decisions
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in which it was written. The timeline is akin to a redo/transaction log, found in databases, and consists of a set of def~timeline-instants. Hudi guarantees that the actions performed on the timeline are atomic & timeline consistent based on the instant time. Timeline is implemented as a set of files under the `.hoodie` def~metadata-folder directly under the def~table-basepath. Specifically, while the most recent instants are maintained as individual files, the older instants are archived to the def~timeline-archival folder, to bound the number of files, listed by writers and queries. |
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Design decisions
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Design decisions
- #todo