This avoids concurrency issues when compactor(s) and ingestor are running in parallel.
In the Next PR -> Safety concern regarding Cleaner retaining all meta-data and file-slices for pending compactions will be addressed
- Fixes#246
- Bump up default parallelism to 1500, to handle large upserts
- Add docs on s3 confuration & tuning tips with tested spark knobs
- Fix bug to not duplicate hoodie metadata fields when input dataframe is another hoodie dataset
- Improve speed of ROTablePathFilter by removing directory check
- Move to spark-avro 4.0 to handle issue with nested fields with same name
- Keep AvroConversionUtils in sync with spark-avro 4.0
The code-style rules follow google style with some changes:
1. Increase line length from 100 to 120
2. Disable JavaDoc related checkstyles as this needs more manual work.
Both source and test code are checked for code-style
- Introduced concept of converters to be able to serde generic datatype for SpillableMap
- Fixed/Added configs to Hoodie Configs
- Changed HoodieMergeHandle to start using SpillableMap
- HoodieLogFormat V2 has support for LogFormat evolution through versioning
- LogVersion is associated with a LogBlock not a LogFile
- Based on a version for a LogBlock, approporiate code path is executed
- Implemented LazyReading of Hoodie Log Blocks with Memory / IO tradeoff
- Implemented Reverse pointer to be able to traverse the log in reverse
- Introduce new MAGIC for backwards compatibility with logs without versions
- Fallback to old way of rollback by listing all partitions
- Added null check to ensure only partitions which are to be rolledback are considered
- Added location (committime) to workload stat
- Added checks in CompactedScanner to guard against task retries
- Introduce new logic for rollback (bounded by instant_time and target_instant time)
- Reversed logfiles order
- When append() is not supported, rollover to new file always (instead of failing)
- Provide way to configure archive log folder (avoids small files inside .hoodie)
- Datasets written via Spark datasource archive to .hoodie/archived
- HoodieClientExample will now retain only 2,3 commits to exercise archival path during dev cycles
- Few tweaks to code structure around CommitArchiveLog
