Maytee Chinavanichkit created KAFKA-6371: --------------------------------------------
Summary: FetchMetadata creates unneeded Strings on instantiation Key: KAFKA-6371 URL: https://issues.apache.org/jira/browse/KAFKA-6371 Project: Kafka Issue Type: Bug Affects Versions: 0.10.2.1, 0.10.1.1, 0.10.0.1 Reporter: Maytee Chinavanichkit Assignee: Maytee Chinavanichkit Priority: Minor Fix For: 0.10.0.2, 0.10.1.2, 0.10.2.2 My colleague and I were taking a heap dump to investigate the memory usage of a broker. From the dump, we saw a number of object strings with the message {{onlyCommitted: <redacted>}} and {{partitionStatus: <redacted>]}}. Upon investigation, these objects were being instantiated when the {{FetchMetadata}} object is constructed. The toString method here is malformed and the last two lines are executed as a block instead of being concatenated. -- This message was sent by Atlassian JIRA (v6.4.14#64029)