[KAFKA-9932] First LeaderAndIsrRequest can take long due to unnecessary ZK read

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.6.0
• Assignee: Ismael Juma
• Reporter: Ismael Juma
• Reviewer: Jun Rao
• Created: 29/Apr/20 04:53
• Updated: 30/Apr/20 03:10
• Resolved: 30/Apr/20 03:10

Description

junrao found the following issue:

In Partition, we have the following code. fetchLogConfig is passed in to logManager.getOrCreateLog by value. This can increase the processing time for the very first LeaderAndIsrRequest since every partition has to do a ZK read to load the log config. This is unnecessary if the log is always present and loaded during the initialization of LogManager.

Issue Links

• links to: GitHub Pull Request #8582