我有一个flaskapi，使用pyspark启动spark并将作业发送到mesos集群。
执行器失败是因为它参与了flaskapi中spark类所在的路由。
日志：

I0903 13:16:14.295672  4754 exec.cpp:164] Version: 1.9.0
I0903 13:16:14.299304  4760 exec.cpp:237] Executor registered on agent 3ac2aa4b-ff5b-4340-a56e-efe96b3b07a2-S2
I0903 13:16:14.301093  4758 executor.cpp:190] Received SUBSCRIBED event
I0903 13:16:14.301807  4758 executor.cpp:194] Subscribed executor on XXXXX
I0903 13:16:14.301923  4758 executor.cpp:190] Received LAUNCH event
I0903 13:16:14.302549  4758 executor.cpp:722] Starting task 3
I0903 13:16:14.310398  4758 executor.cpp:738] Forked command at 4764
sh: /home/user/source/environment/lib/python3.7/site-packages/pyspark/./bin/spark-class: No such file or directory
I0903 13:16:14.397004  4760 executor.cpp:1039] Command exited with status 127 (pid: 4764)
I0903 13:16:15.398034  4763 process.cpp:935] Stopped the socket accept loop

粗体路径是spark类实际位于flask服务器（作业请求者）中的部分
sh:/home/user/source/environment/lib/python3.7/site packages/pyspark//bin/spark class:没有这样的文件或目录
在这里：

-rwxr-xr-x 1 root root 3.2K Sep  1 11:07 /home/user/source/environment/lib/python3.7/site-packages/pyspark/bin/spark-class

可能我缺少一个环境变量，或者我可以将路径作为参数发送吗？