Joel Koshy created KAFKA-1523:
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Summary: Implement transaction manager module
Key: KAFKA-1523
URL: https://issues.apache.org/jira/browse/KAFKA-1523
Project: Kafka
Issue Type: New Feature
Reporter: Joel Koshy
Assignee: Dong Lin
* Entry point for transaction requests
* Appends transaction control records to the transaction journal
* Sends transaction control records to data brokers
* Responsible for expiring transactions
* Supports fail-over: for which it needs to maintain a transaction HW which is
the offset of the BEGIN control record of the earliest pending transaction. It
should checkpoint the HW periodically either to ZK/separate topic/offset commit.
The scope of this ticket will be the basic transaction coordinator
functionality. E.g., we can just have a basic transaction manager that can
begin/commit/abort transactions. No expiration, no fail-over. We will add
failure handling in subsequent jiras.
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