HashZhang opened a new issue #1870: Adopted OpenJDK 11 URL: https://github.com/apache/rocketmq/issues/1870 Hi. We adopted RocketMQ with OpenJDK 11.0.4 (LTS) from version 4.5.0 to 4.7.0 and have been running online for a long time. The JVM Parameters we are using is: ``` JAVA_OPT="${JAVA_OPT} --add-exports java.base/jdk.internal.ref=ALL-UNNAMED -server -Xms8g -Xmx8g -Xmn4g" JAVA_OPT="${JAVA_OPT} -XX:+UseG1GC -XX:G1HeapRegionSize=16m -XX:G1ReservePercent=25 -XX:InitiatingHeapOccupancyPercent=30 -XX:SoftRefLRUPolicyMSPerMB=0" JAVA_OPT="${JAVA_OPT} -verbose:gc -Xlog:gc*=info,safepoint=info:file=${GC_LOG_DIR}/rmq_broker_gc.log:utctime,level,tags:filecount=5,filesize=30M" JAVA_OPT="${JAVA_OPT} -XX:-OmitStackTraceInFastThrow" JAVA_OPT="${JAVA_OPT} -XX:+AlwaysPreTouch" JAVA_OPT="${JAVA_OPT} -XX:MaxDirectMemorySize=15g" JAVA_OPT="${JAVA_OPT} -XX:-UseLargePages -XX:-UseBiasedLocking" JAVA_OPT="${JAVA_OPT} --class-path=${JAVA_HOME}/jre/lib/ext/*:${BASE_DIR}/lib/*:${CLASSPATH}" #JAVA_OPT="${JAVA_OPT} -Xdebug -Xrunjdwp:transport=dt_socket,address=9555,server=y,suspend=n" JAVA_OPT="${JAVA_OPT} ${JAVA_OPT_EXT}" ``` considering making JVM options a public parameter for user to switch between OpenJDK 8 and OpenJDK 11
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