THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
Definition
Action type for a def~timeline-instant
COMMITS
- `action type` which denotes an atomic write of a batch of records from an external source into a def~dataset (see def~commit).CLEANS
- `action type` which denotes a background activity that gets rid of older versions of files in the def~dataset, that are no longer needed.DELTA_COMMIT
- `action type` which denotes an atomic write of a batch of records into a def~merge-on-read def~storage-type of def~dataset, where some/all of the data could be just written to delta logs (see def~commit).COMPACTION
- `action type` which denotes a background activity to reconcile differential data structures within Hudi e.g: moving updates from row based delta log files to columnar file formats. Internally, compaction manifests as a special def~commit on the timeline (see def~timeline-instant)ROLLBACK
- `action type` denotes that a def~timeline-instant of `instant action type` commit/delta commit was unsuccessful & rolled back, removing any partial files produced during such a writeSAVEPOINT
- `action type` marks certain file groups as “saved”, such that cleaner will not delete them. It helps restore the def~dataset to a point on the timeline, in case of disaster/data recovery scenarios.