Add storm-iceberg module: a Trident sink for Apache Iceberg#8950
Draft
GGraziadei wants to merge 5 commits into
Draft
Add storm-iceberg module: a Trident sink for Apache Iceberg#8950GGraziadei wants to merge 5 commits into
GGraziadei wants to merge 5 commits into
Conversation
New external module writing Trident batches to Apache Iceberg tables directly from a topology, with exactly-once semantics. Each batch is committed in a single Iceberg transaction that atomically appends the data files and records the transaction id in the table property storm.trident.<topologyName>.<partitionIndex>.last-committed-txid, so replayed batches are detected and skipped even across worker crashes and commits whose outcome was unknown to the writer. Includes: - IcebergOptions: catalog properties passed verbatim to Iceberg's CatalogUtil.buildIcebergCatalog, so any catalog works with its standard keys; file format, target file size and table auto-creation. - RecordMapper with a field-name based default doing the standard primitive conversions; required columns without a value fail loudly. - Partitioned tables through Iceberg's fanout writer, one open data file per partition. - Per-batch table refresh, so schema and partition spec evolution is picked up without restarting the workers. - Metrics-v2 instrumentation: records written, data files and bytes committed, commit latency, commit failures, skipped replays. - A shutdown hook releasing the catalog client, since Trident's State has no lifecycle callback. - Documentation and two runnable example topologies, unpartitioned and partitioned.
…dent # Conflicts: # storm-dist/binary/final-package/src/main/assembly/binary.xml
…ingested per commit.
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
1 participant
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
What is the purpose of the change
ToDo
How was the change tested
ToDo