mycat配置好后无法启动.wrapper日志报Invalid maximum heap size: -Xmx4G错误
来源：9-5 下载安装Mycat配置并启动
腾飞的希望
2017-12-19
按照老师的配置完成好后.mycat无法启动.日志文件下只有wrapper日志.报错如下:
.0
INFO | jvm 3 | 2017/12/17 23:04:31 | Invalid maximum heap size: -Xmx4G
INFO | jvm 3 | 2017/12/17 23:04:31 | The specified size exceeds the maximum representable size.
INFO | jvm 3 | 2017/12/17 23:04:31 | Error: Could not create the Java Virtual Machine.
INFO | jvm 3 | 2017/12/17 23:04:31 | Error: A fatal exception has occurred. Program will exit.
STATUS | wrapper | 2017/12/17 23:04:35 | Launching a JVM...
ERROR | wrapper | 2017/12/17 23:04:35 | JVM exited while loading the application.
INFO | jvm 4 | 2017/12/17 23:04:35 | Java HotSpot(TM) Server VM warning: ignoring option MaxPermSize=64M; support was removed in 8.0
INFO | jvm 4 | 2017/12/17 23:04:35 | Invalid maximum heap size: -Xmx4G
INFO | jvm 4 | 2017/12/17 23:04:35 | The specified size exceeds the maximum representable size.
INFO | jvm 4 | 2017/12/17 23:04:35 | Error: Could not create the Java Virtual Machine.
INFO | jvm 4 | 2017/12/17 23:04:35 | Error: A fatal exception has occurred. Program will exit.
STATUS | wrapper | 2017/12/17 23:04:40 | Launching a JVM...
ERROR | wrapper | 2017/12/17 23:04:40 | JVM exited while loading the application.
我不懂java,感觉像是内存问题.找到conf/wrapper.xml文件.将有4G 2G 1G等值的都改成512M ,然后启动成功.想问老师这些报错是不是内存问题.配置的时候还需要注意什么?生产环境下mycat服务器用什么配置比较合适?
1回答
-
是的，原因是java虚拟机超出了内存大小导致，这个配置因情况而定，也要看你的线上机环境然后针对性进行配置，建议下载mycat手册，仔细阅读配置选项和配置方式
012017-12-20
相似问题