mycat启动报Unable to start JVM: No such file or directory

Posted 2021-11-30 paul8339

mycat启动失败，查看日志 /mycat/logs/wrapper.log发现如下信息

     1  STATUS | wrapper  | 2017/11/22 16:15:17 | --> Wrapper Started as Daemon
     2  STATUS | wrapper  | 2017/11/22 16:15:17 | Launching a JVM...
     3  ERROR  | wrapper  | 2017/11/22 16:15:17 | Unable to start JVM: No such file or directory (2)
     4  ERROR  | wrapper  | 2017/11/22 16:15:17 | JVM exited while loading the application.
     5  STATUS | wrapper  | 2017/11/22 16:15:22 | Launching a JVM...
     6  ERROR  | wrapper  | 2017/11/22 16:15:22 | Unable to start JVM: No such file or directory (2)
     7  ERROR  | wrapper  | 2017/11/22 16:15:22 | JVM exited while loading the application.
     8  STATUS | wrapper  | 2017/11/22 16:15:26 | Launching a JVM...
     9  ERROR  | wrapper  | 2017/11/22 16:15:26 | Unable to start JVM: No such file or directory (2)
    10  ERROR  | wrapper  | 2017/11/22 16:15:26 | JVM exited while loading the application.
    11  STATUS | wrapper  | 2017/11/22 16:15:30 | Launching a JVM...
    12  ERROR  | wrapper  | 2017/11/22 16:15:30 | Unable to start JVM: No such file or directory (2)
    13  ERROR  | wrapper  | 2017/11/22 16:15:30 | JVM exited while loading the application.
    14  STATUS | wrapper  | 2017/11/22 16:15:34 | Launching a JVM...
    15  ERROR  | wrapper  | 2017/11/22 16:15:34 | Unable to start JVM: No such file or directory (2)
    16  ERROR  | wrapper  | 2017/11/22 16:15:34 | JVM exited while loading the application.
    17  FATAL  | wrapper  | 2017/11/22 16:15:34 | There were 5 failed launches in a row, each lasting less than 300 seconds.  Giving up.
    18  FATAL  | wrapper  | 2017/11/22 16:15:34 |   There may be a configuration problem: please check the logs.
    19  STATUS | wrapper  | 2017/11/22 16:15:34 | <-- Wrapper Stopped

解决方法：

原因可能是JVM参数没有配置或者配置错误 

处理方案： 
在mycat/conf/wrapper.conf 下增加：
wrapper.java.command=java安装目录/bin/java

例如：

wrapper.java.command=/home/hadoop/software/jdk1.8.0_181/bin/java

参考：https://blog.csdn.net/leisure_life/article/details/78612256?locationNum=3&fps=1