GitHub user shivsantham opened a pull request: https://github.com/apache/kafka/pull/4041
KAFKA-6023 ThreadCache#sizeBytes() should check overflow long sizeBytes() { long sizeInBytes = 0; for (final NamedCache namedCache : caches.values()) { sizeInBytes += namedCache.sizeInBytes(); } return sizeInBytes; } The summation w.r.t. sizeInBytes may overflow. Check similar to what is done in size() should be performed. You can merge this pull request into a Git repository by running: $ git pull https://github.com/shivsantham/kafkaImprovements kafka-6023 Alternatively you can review and apply these changes as the patch at: https://github.com/apache/kafka/pull/4041.patch To close this pull request, make a commit to your master/trunk branch with (at least) the following in the commit message: This closes #4041 ---- commit b3517bed4909da5d4bc5eae9a66daf681d2b4cb4 Author: siva santhalingam <siva.santhalin...@gmail.com> Date: 2017-10-09T01:46:56Z KAFKA-6023 ThreadCache#sizeBytes() should check overflow ---- ---