Guava deprecated hashString(String) in v15, and removed it in v16.
Replace call with hashUnencodedString(String), which replace it, to
be compatible with newer versions of Guava.
- keys compared lexicographically using String::compareTo
- Range metadata additionally written into parquet file footers
- Trim fat & few optimizations to speed up indexing
- Add param to control whether input shall be cached, to speed up lookup
- Add param to turn on/off range pruning
- Auto compute of parallelism now simply factors in amount of comparisons done
- More accurate parallelism computation when range pruning is on
- tests added & hardened, docs updated
- Merged all filter* and get* methods
- new constructor takes filestatus[]
- All existing tests pass
- FileGroup is all files that belong to a fileID within a partition
- FileSlice is a generation of data and log files, starting at a base commit
- Concurreny handled via taskID, failure recovery handled via renames
- Falls back to search 3 levels up
- Cli tool has command to add this to existing tables
- Introduce avro to save clean metadata with details about the last commit that was retained
- Save rollback metadata in the meta timeline
- Create savepoint metadata and add API to createSavepoint, deleteSavepoint and rollbackToSavepoint
- Savepointed commit should not be rolledback or cleaned or archived
- introduce cli commands to show, create and rollback to savepoints
- Write unit tests to test savepoints and rollbackToSavepoints
* Add analytics to site
* Fix ugly favicon
* New & Improved HoodieDeltaStreamer
- Can incrementally consume from HDFS or Kafka, with exactly-once semantics!
- Supports Json/Avro data, Source can also do custom things
- Source is totally pluggable, via reflection
- Key generation is pluggable, currently added SimpleKeyGenerator
- Schema provider is pluggable, currently Filebased schemas
- Configurable field to break ties during preCombine
- Finally, can also plugin the HoodieRecordPayload, to get other merge types than overwriting
- Handles efficient avro serialization in Spark
Pending :
- Rewriting of HiveIncrPullSource
- Hive sync via hoodie-hive
- Cleanup & tests
* Minor fixes from master rebase
* Implementation of HiveIncrPullSource
- Copies commit by commit from source to target
* Adding TimestampBasedKeyGenerator
- Supports unix time & date strings
1. Create HoodieTable abstraction for commits and fileSystemView
2. HoodieMergeOnReadTable created
3. View is now always obtained from the table and the correct view based on the table type is returned
