Spark Standalone Cluster 启动失败：Java 可执行文件缺失
The command sbin/start-all.sh is used to start all Spark standalone daemons (Master and Workers).
In the given output, it shows that the Master daemon failed to start due to the following error:
/opt/module/spark-standalone/bin/spark-class:行71: /opt/module/jdk1.8.0_144/bin/java: 没有那个文件或目录: This error indicates that the Java executable (java) could not be found at the specified path. It suggests that the Java Development Kit (JDK) is not installed or the path to the JDK is not correctly set.
Similarly, the Worker daemons on hadoop102 and hadoop103 also failed to start due to the same error.
To resolve this issue, ensure that you have installed the JDK and set the correct path to the JDK in your system.
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