Apache Dolphinscheduler1.3.0 datax节点 Directory could not be created

一、问题

报错：

[ERROR] 2020-06-17 10:31:19.709 - [taskAppId=TASK-3-15-15]:[170] - datax task failure java.io.IOException: Directory '/tmp/dolphinscheduler/exec/process/1/3/15/15' could not be created at org.apache.commons.io.FileUtils.openOutputStream(FileUtils.java:363) at org.apache.commons.io.FileUtils.writeStringToFile(FileUtils.java:1928) at org.apache.commons.io.FileUtils.writeStringToFile(FileUtils.java:1895) at org.apache.dolphinscheduler.server.worker.task.datax.DataxTask.buildDataxJsonFile(DataxTask.java:227) at org.apache.dolphinscheduler.server.worker.task.datax.DataxTask.handle(DataxTask.java:161) at org.apache.dolphinscheduler.server.worker.runner.TaskExecuteThread.run(TaskExecuteThread.java:127) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:748)

配置：

select column from tablename

二、解决

在每个worker节点上赋予权限就好

方法一：

su root chmod 777 -R /tmp/dolphinscheduler

反思，权限没有控制的很精细，有一定安全风险

方法二：

chown -R dolphinscheduler:dolphinscheduler /tmp/dolphinscheduler

思路：dolphincheduler启动任务应该是用dolphinscheduler用户启动的，只需要把文件夹的所有者和所有组改成安装用户即可。