Otto Fowler created METRON-2195:
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Summary: Add defensive log level checks when constructing logs is
expensive
Key: METRON-2195
URL: https://issues.apache.org/jira/browse/METRON-2195
Project: Metron
Issue Type: Improvement
Reporter: Otto Fowler
There are instances where we log, and output strings for json objects and other
things that are quite expensive.
These are done regardless of the log level being enabled and can increase
performance significantly:
https://gist.github.com/mmiklavc/7fd6af13bfa0ca05d9b3f4e7806c8d77
https://github.com/apache/metron/blob/master/metron-platform/metron-writer/metron-writer-storm/src/main/java/org/apache/metron/writer/hdfs/HdfsWriter.java#L127
We need to find places where this happens, and employ the best practice check
for the log level being enabled ( best practice if your parameters or log
message construction takes a lot of time ).
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