mahesh kumar behera created HIVE-18720:
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Summary: Replicate Commit Txn operation (without writes)
Key: HIVE-18720
URL: https://issues.apache.org/jira/browse/HIVE-18720
Project: Hive
Issue Type: Task
Components: repl, Transactions
Affects Versions: 3.0.0
Reporter: mahesh kumar behera
Assignee: mahesh kumar behera
Fix For: 3.0.0
Add new EVENT_COMMIT_TXN to log the metadata/data of all tables/partitions
modified within the txn.
*Source warehouse:*
- Create EVENT_COMMIT_TXN event type with corresponding message format etc.
*Target warehouse:*
- Repl load should read this event from the dump.
- Validate the source txn ID from the event using the Source-Target Txn ID map
maintained in target metastore. Also, need to check if corresponding target txn
ID is valid.
- If valid, then apply the event and commit the corresponding target
transaction.
- This new event should be idempotent such that if it is applied twice, then
second time it should be loop.
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