Serialization of kafka metrics failed - Message size to large

Owned by Harsh Bansal
Last updated: May 22, 2023 by Sheetal Shet
1 min read

Known bug, Fixed with 4.5.5. Please upgade to this version or later to solve the issue.

Observation

The following warning is seen in HiveMQ logs:

WARN - Serialization of kafka metrics failed: java.lang.IllegalArgumentException: Message size to large. Maximum allowed: 5242880 | Received: 5710237

Consequence

Impact: Low (Cosmetic)

Kafka Metrics are not displayed in the Control Center. The Broker and Kafka Extension work otherwise as expected. External Monitoring is not affected either.

Cause

This is a known bug where the size of the Kafka metrics increase beyond the set limit of 5 MB, leading to this error.

Solution

The bug is fixed in HiveMQ version 4.5.5. Please upgrade to this version to resolve this issue.

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