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Posted to commits@cassandra.apache.org by "Jeff Jirsa (JIRA)" <ji...@apache.org> on 2018/04/25 06:14:00 UTC

[jira] [Created] (CASSANDRA-14416) Remove string formatting lines from hot path

Jeff Jirsa created CASSANDRA-14416:
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             Summary: Remove string formatting lines from hot path
                 Key: CASSANDRA-14416
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-14416
             Project: Cassandra
          Issue Type: Improvement
          Components: Core
            Reporter: Jeff Jirsa
            Assignee: Jeff Jirsa
             Fix For: 3.11.x, 4.x


In the BufferPool, we have a {{NoSpamLogger}} that gets called in some conditions (like when we're at or near the cap in a given pool), which has some string formatting on it. In situations where that log line is invoked, that string formatting gets called before the rate limiting, which becomes expensive. 



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