[HIVE-18679] create/replicate open transaction event

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Duplicate
• Affects Version/s: 3.0.0
• Fix Version/s: 3.0.0
• Component/s: repl, Transactions
• Labels: pull-request-available
• Assignee: mahesh kumar behera
• Reporter: mahesh kumar behera
• Due: 16/Feb/18
• Created: 11/Feb/18 18:19
• Updated: 22/May/18 23:14
• Resolved: 01/Mar/18 08:04

Description

EVENT_OPEN_TXN:
Source Warehouse:

• Create new event type EVENT_OPEN_TXN with related message format etc.
• When any transaction is opened either by auto-commit mode or multi-statement mode, need to capture this event.
• Repl dump should read this event from EventNotificationTable and dump the message.

Target Warehouse:

• Repl load should read the event from the dump and get the message.
• Open a txn in target warehouse.
• Create a map of source txn ID against target txn ID and persist the same in metastore. There should be one map per replication policy (DBName.* incase of DB level replication, DBName.TableName incase of table level replication)

Issue Links

• links to: GitHub Pull Request #305