问题描述
启动RocketMQ NameServer和RocketMQ Broker报错。
mqnamesrv.cmd
Unrecognized VM option 'UseConcMarkSweepGC'
Error: Could not create the Java Virtual Machine.
Error: A fatal exception has occurred. Program will exit.mqbroker.cmd
[0.004s][warning][gc] -Xloggc is deprecated. Will use -Xlog:gc:C:\Users\xxx\mq_gc.log instead.
Unrecognized VM option 'PrintGCDateStamps'
Error: Could not create the Java Virtual Machine.
Error: A fatal exception has occurred. Program will exit.原因分析
当前JDK版本17.0.8。RocketMQ需运行在JDK8环境下。
解决方案
- 修改系统环境变量JAVA_HOME，指向JDK8路径。
- 为RocketMQ单独设置JDK路径： 打开runserver.cmd，找到：
set "JAVA=%JAVA_HOME%\bin\java.exe"将%JAVA_HOME%替换为JDK8路径。
打开runbroker.cmd，找到：
set "JAVA=%JAVA_HOME%\bin\java.exe"将%JAVA_HOME%替换为JDK8路径。
重新启动RocketMQ NameServer和Broker，成功启动。
mqnamesrv.cmd
Java HotSpot(TM) 64-Bit Server VM warning: Using the DefNew young collector with the CMS collector is deprecated and will likely be removed in a future release
Java HotSpot(TM) 64-Bit Server VM warning: UseCMSCompactAtFullCollection is deprecated and will likely be removed in a future release.
The Name Server boot success. serializeType=JSON, address 0.0.0.0:9876