* [HUDI-2285] Adding Synchronous updates to metadata before completion of commits in data timelime.
- This patch adds synchronous updates to metadata table. In other words, every write is first committed to metadata table followed by data table. While reading metadata table, we ignore any delta commits that are present only in metadata table and not in data table timeline.
- Compaction of metadata table is fenced by the condition that we trigger compaction only when there are no inflight requests in datatable. This ensures that all base files in metadata table is always in sync with data table(w/o any holes) and only there could be some extra invalid commits among delta log files in metadata table.
- Due to this, archival of data table also fences itself up until compacted instant in metadata table.
All writes to metadata table happens within the datatable lock. So, metadata table works in one writer mode only. This might be tough to loosen since all writers write to same FILES partition and so, will result in a conflict anyways.
- As part of this, have added acquiring locks in data table for those operations which were not before while committing (rollback, clean, compaction, cluster). To note, we were not doing any conflict resolution. All we are doing here is to commit by taking a lock. So that all writes to metadata table is always a single writer.
- Also added building block to add buckets for partitions, which will be leveraged by other indexes like record level index, etc. For now, FILES partition has only one bucket. In general, any number of buckets per partition is allowed and each partition has a fixed fileId prefix with incremental suffix for each bucket within each partition.
Have fixed [HUDI-2476]. This fix is about retrying a failed compaction if it succeeded in metadata for first time, but failed w/ data table.
- Enabling metadata table by default.
- Adding more tests for metadata table
Co-authored-by: Prashant Wason <pwason@uber.com>
- Fixing packaging, naming of classes
- Use of log4j over slf4j for uniformity
- More follow-on fixes
- Added a version to control/coordinator events.
- Eliminated the config added to write config
- Fixed fetching of checkpoints based on table type
- Clean up of naming, code placement
Co-authored-by: Rajesh Mahindra <rmahindra@Rajeshs-MacBook-Pro.local>
Co-authored-by: Vinoth Chandar <vinoth@apache.org>
- Added upgrade and downgrade step to and from 0.9.0. Upgrade adds few table properties. Downgrade recreates timeline server based marker files if any.
- Added two sources for two stage pipeline. a. S3EventsSource that fetches events from SQS and ingests to a meta hoodie table. b. S3EventsHoodieIncrSource reads S3 events from this meta hoodie table, fetches actual objects from S3 and ingests to sink hoodie table.
- Added selectors to assist in S3EventsSource.
Co-authored-by: Satish M <84978833+satishmittal1111@users.noreply.github.com>
Co-authored-by: Vinoth Chandar <vinoth@apache.org>
* Adding support to ingest records with old schema after table's schema is evolved
* Rebasing against latest master
- Trimming test file to be < 800 lines
- Renaming config names
* Addressing feedback
Co-authored-by: Vinoth Chandar <vinoth@apache.org>
* [HUDI-1848] Adding support for HMS for running DDL queries in hive-sync-tool
* [HUDI-1848] Fixing test cases
* [HUDI-1848] CR changes
* [HUDI-1848] Fix checkstyle violations
* [HUDI-1848] Fixed a bug when metastore api fails for complex schemas with multiple levels.
* [HUDI-1848] Adding the complex schema and resolving merge conflicts
* [HUDI-1848] Adding some more javadocs
* [HUDI-1848] Added javadocs for DDLExecutor impls
* [HUDI-1848] Fixed style issue
* [HUDI-1944] Support Hudi to read from committed offset
* [HUDI-1944] Adding group option to KafkaResetOffsetStrategies
* [HUDI-1944] Update Exception msg
