Neha Narkhede created KAFKA-1351:
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Summary: String.format is very expensive in Scala
Key: KAFKA-1351
URL: https://issues.apache.org/jira/browse/KAFKA-1351
Project: Kafka
Issue Type: Bug
Components: core
Affects Versions: 0.8.0, 0.7.2, 0.8.1
Reporter: Neha Narkhede
As found in KAFKA-1350, logging is causing significant overhead in the
performance of a Kafka server. There are several info statements that use
String.format which is particularly expensive. We should investigate adding our
own version of String.format that merely uses string concatenation under the
covers.
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