[SPARK-24056] Make consumer creation lazy in Kafka source for Structured streaming - ASF JIRA

Log work

Agile Board

Rank to Top

Rank to Bottom

Attach files

Attach Screenshot

Voters

Stop watching

Watchers

Create sub-task

Convert to sub-task

Link

Clone

Labels

Update Comment Author

Replace String in Comment

Update Comment Visibility

Delete Comments

XML

Word

Printable

JSON

Details

Type: Bug
Status: Resolved
Priority: Minor
Resolution: Fixed
Affects Version/s: 2.4.0
Fix Version/s: 2.4.0
Component/s: Structured Streaming
Labels:
None

Target Version/s:

2.4.0

Description

Currently, the driver side of the Kafka source (i.e. KafkaMicroBatchReader) eagerly creates a consumer as soon as the Kafk aMicroBatchReader is created. However, we create dummy KafkaMicroBatchReader to get the schema and immediately stop it. Its better to make the consumer creation lazy, it will be created on the first attempt to fetch offsets using the KafkaOffsetReader.