[KAFKA-2998] Log warnings when client is disconnected from bootstrap brokers

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 0.9.0.0
• Fix Version/s: 0.10.0.0
• Component/s: clients
• Assignee: Jason Gustafson
• Reporter: Florian Hussonnois
• Created: 16/Dec/15 17:25
• Updated: 14/May/16 08:22
• Resolved: 05/Apr/16 04:29

Description

If no broker from bootstrap.servers is available consumer retries indefinitely with debug log message :

DEBUG 17:16:13 Give up sending metadata request since no node is available
DEBUG 17:16:13 Initialize connection to node -1 for sending metadata request
DEBUG 17:16:13 Initiating connection to node -1 at localhost:9091.

At least, an ERROR message should be log after a number of retries.
In addition, maybe the consumer should fail in a such case ? This behavior could be set by a configuration property ?

Issue Links

• relates to: KAFKA-3468 Java clients never fail when bootstrap uses incorrect port