devinbost commented on issue #6054:
URL: https://github.com/apache/pulsar/issues/6054#issuecomment-842605478
I have a few settings in `pulsar_env.sh` that might be different:
```
# Garbage collection options
PULSAR_GC=" -XX:+UseG1GC -XX:MaxGCPauseMillis=10 -XX:+ParallelRefProcEnabled
-XX:+UnlockExperimentalVMOptions -XX:+AggressiveOpts -XX:+DoEscapeAnalysis
-XX:ParallelGCThreads=32 -XX:ConcGCThreads=32 -XX:G1NewSizePercent=50
-XX:+DisableExplicitGC -XX:-ResizePLAB"
# Extra options to be passed to the jvm
PULSAR_EXTRA_OPTS="${PULSAR_EXTRA_OPTS} ${PULSAR_MEM} ${PULSAR_GC}
-Dio.netty.leakDetectionLevel=disabled
-Dio.netty.recycler.maxCapacity.default=1000
-Dio.netty.recycler.linkCapacity=1024"
PULSAR_EXTRA_OPTS="$PULSAR_EXTRA_OPTS -XX:+PreserveFramePointer"
# Kerberos support for Kafka Connectors
PULSAR_EXTRA_OPTS="${PULSAR_EXTRA_OPTS}
-Djava.security.krb5.conf=/pulsar/conf/krb5-prod.conf
-Dsun.security.krb5.debug=false"
```
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