MINOR: FetchSessionHandler unnecessarily generates strings for DEBUG logging at INFO level#7394
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ijuma merged 1 commit intoapache:trunkfrom Sep 29, 2019
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…logging at INFO level
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Scala 2.12 and 2.13 builds passed, 2.11 failed due to a Jenkins issue:
Given that the change doesn't affect Scala code, this is ready to be merged. |
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Conflicts: * .gitignore: addition of clients/src/generated-test was near local additions for support-metrics. * checkstyle/suppressions.xml: upstream refactoring of exclusions for generator were near the local changes for support-metrics. * gradle.properties: scala version bump caused a minor conflict due to the kafka version change locally. gradle/dependencies.gradle: bcpkix version bump was near avro additions in the local version. * apache-github/trunk: (49 commits) KAFKA-8471: Replace control requests/responses with automated protocol (apache#7353) MINOR: Don't generate unnecessary strings for debug logging in FetchSessionHandler (apache#7394) MINOR:fixed typo and removed outdated varilable name (apache#7402) KAFKA-8934: Create version file during build for Streams (apache#7397) KAFKA-8319: Make KafkaStreamsTest a non-integration test class (apache#7382) KAFKA-6883: Add toUpperCase support to sasl.kerberos.principal.to.local rule (KIP-309) KAFKA-8907; Return topic configs in CreateTopics response (KIP-525) (apache#7380) MINOR: Address review comments for KIP-504 authorizer changes (apache#7379) MINOR: add versioning to request and response headers (apache#7372) KAFKA-7273: Extend Connect Converter to support headers (apache#6362) MINOR: improve the Kafka RPC code generator (apache#7340) MINOR: Improve the org.apache.kafka.common.protocol code (apache#7344) KAFKA-8880: Docs on upgrade-guide (apache#7385) KAFKA-8179: do not suspend standby tasks during rebalance (apache#7321) KAFKA-8580: Compute RocksDB metrics (apache#7263) KAFKA-8880: Add overloaded function of Consumer.committed (apache#7304) HOTFIX: fix Kafka Streams upgrade note for broker backward compatibility (apache#7363) KAFKA-8848; Update system tests to use new AclAuthorizer (apache#7374) MINOR: remove unnecessary null check (apache#7299) KAFKA-6958: Overload methods for group and windowed stream to allow to name operation name using the new Named class (apache#6413) ...
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Profiling while benchmarking shows FetchSessionHandler unnecessary calls to responseDataToLogString when logging was set to INFO level. This leads to 1.47% of the JVM CPU time going to responseDataToLogString. This PR fixes this issue.