Michael Miller created ACCUMULO-4650:
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Summary: Use SLF4J parameterized logging instead of String
concatenation
Key: ACCUMULO-4650
URL: https://issues.apache.org/jira/browse/ACCUMULO-4650
Project: Accumulo
Issue Type: Improvement
Reporter: Michael Miller
Priority: Minor
The Simple Logging Facade for Java (SLF4J) allows performance improvement of
logging with use of parameterized "{}" log messages.
The following two lines will yield the exact same output. However, the second
form will outperform the first form by a factor of at least 30, in case of a
disabled logging statement.
{code}
logger.debug("The new entry is "+entry+".");
logger.debug("The new entry is {}.", entry);
{code}
See here for reference: https://www.slf4j.org/faq.html#logging_performance
It wouldn't hurt to wrap all debug log statements server side with
isDebugEnabled() as well.
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