wa-ooo opened a new issue #3177:
URL: https://github.com/apache/incubator-dolphinscheduler/issues/3177
查看代码可以知道在内部做了两次的参数解析，第一次的解析会把时间表达式处理成运行的当前时间，因为paramsMap中并没有schedule.time
look at the code shows that parameter parsing is done internally twice, the
first parsing takes the time expression into the current running time because
there is no schedule.time in paramsMap
```
/**
* combining local and global parameters
*/
Map<String, Property> paramsMap =
ParamUtils.convert(ParamUtils.getUserDefParamsMap(taskExecutionContext.getDefinedParams()),
taskExecutionContext.getDefinedParams(),
shellParameters.getLocalParametersMap(),
CommandType.of(taskExecutionContext.getCmdTypeIfComplement()),
taskExecutionContext.getScheduleTime());
if (paramsMap != null){
//paramsMap可能为空，并且ParameterUtils.convertParameterPlaceholders方法使用了system.datetime解析[yyyyMM],第二次的schedule.time总是用不到
script = ParameterUtils.convertParameterPlaceholders(script,
ParamUtils.convert(paramsMap));
}
// new
// replace variable TIME with $[YYYYmmddd...] in shell file when history
run job and batch complement job
if (paramsMap != null) {
if (taskExecutionContext.getScheduleTime() != null) {
String dateTime =
DateUtils.format(taskExecutionContext.getScheduleTime(),
Constants.PARAMETER_FORMAT_TIME);
Property p = new Property();
p.setValue(dateTime);
p.setProp(Constants.PARAMETER_SHECDULE_TIME);
paramsMap.put(Constants.PARAMETER_SHECDULE_TIME, p);
}
script = ParameterUtils.convertParameterPlaceholders2(script,
ParamUtils.convert(paramsMap));
}
```
**Which version of Dolphin Scheduler:**
-[1.3.1-release]
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