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Posted to users@kafka.apache.org by Florian Hussonnois <fh...@gmail.com> on 2016/01/25 21:53:05 UTC

how to set the Java heap of brokers

Hi,

I'm looking for any recommendations on how to set the Java heap of brokers.

I have found details on GC configuration but 6g looks very high fo me.

-Xms6g -Xmx6g -XX:MetaspaceSize=96m -XX:+UseG1GC -XX:MaxGCPauseMillis=20
-XX:InitiatingHeapOccupancyPercent=35 -XX:G1HeapRegionSize=16M
-XX:MinMetaspaceFreeRatio=50 -XX:MaxMetaspaceFreeRatio=80

I would like to understand what brokers actually maintain in-memory.

Is anybody have some links which may explain that point ?

Thank you in advance.

-- 
Florian HUSSONNOIS