pulsar_env.sh

#!/usr/bin/env bash
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# Set JAVA_HOME here to override the environment setting
# JAVA_HOME=

# default settings for starting pulsar broker

# Log4j configuration file
# PULSAR_LOG_CONF=

# Logs location
# PULSAR_LOG_DIR=

# Configuration file of settings used in broker server
# PULSAR_BROKER_CONF=

# Configuration file of settings used in bookie server
# PULSAR_BOOKKEEPER_CONF=

# Configuration file of settings used in zookeeper server
# PULSAR_ZK_CONF=

# Configuration file of settings used in global zookeeper server
# PULSAR_GLOBAL_ZK_CONF=

# Extra options to be passed to the jvm
PULSAR_MEM=${PULSAR_MEM:-"-Xms2g -Xmx2g -XX:MaxDirectMemorySize=4g"}

# Garbage collection options
PULSAR_GC=${PULSAR_GC:-"-XX:+UseG1GC -XX:MaxGCPauseMillis=10 -XX:+ParallelRefProcEnabled -XX:+UnlockExperimentalVMOptions -XX:+DoEscapeAnalysis -XX:ParallelGCThreads=32 -XX:ConcGCThreads=32 -XX:G1NewSizePercent=50 -XX:+DisableExplicitGC -XX:-ResizePLAB"}

# Garbage collection log.
IS_JAVA_8=`java -version 2>&1 |grep version|grep '"1\.8'`
# java version has space, use [[ -n $PARAM ]] to judge if variable exists
if [[ -n $IS_JAVA_8 ]]; then
  PULSAR_GC_LOG=${PULSAR_GC_LOG:-"-Xloggc:logs/pulsar_gc_%p.log -XX:+PrintGCDetails -XX:+PrintGCDateStamps -XX:+UseGCLogFileRotation -XX:NumberOfGCLogFiles=10 -XX:GCLogFileSize=20M"}
else
# After jdk 9, gc log param should config like this. Ignoring version less than jdk 8
  PULSAR_GC_LOG=${PULSAR_GC_LOG:-"-Xlog:gc:logs/pulsar_gc_%p.log:time,uptime:filecount=10,filesize=20M"}
fi

# Extra options to be passed to the jvm
PULSAR_EXTRA_OPTS=${PULSAR_EXTRA_OPTS:-" -Dpulsar.allocator.exit_on_oom=true -Dio.netty.recycler.maxCapacity.default=1000 -Dio.netty.recycler.linkCapacity=1024"}

# Add extra paths to the bookkeeper classpath
# PULSAR_EXTRA_CLASSPATH=

#Folder where the Bookie server PID file should be stored
#PULSAR_PID_DIR=

#Wait time before forcefully kill the pulser server instance, if the stop is not successful
#PULSAR_STOP_TIMEOUT=