How to write a batch job query that has wait times, dependencies and conditional execution?

i_wonder

10/30/22, 9:23 AM

I'm trying to write a batch job that executes via task scheduler. The objective is to run these exe jobs sequentially. However, some of these jobs have dependencies on others. for eg.

job1.exe (no dependencies. exe for an API call)
job2.exe (no dependencies. exe for an API call)
job3.exe (python file in exe, requires job1 to run successfully, waiting 3 mins before executing)
job4.exe (python file in exe, requires both job2 and job1 to run successfully waiting 3 mins before executing)

Aim : to run job1 and job2 in parallel job3 and job4 whenever possible currently it's set up like this:

START /min "" "%~dp0\ job1.exe
IF %ErrorLevel% EQU 0 (
    TIMEOUT /t 180
    START /min "" "%~dp0\job3.exe) 
)ELSE (
    ECHO job3 did not run because job1 failed
TIMEOUT /t 180

START /min "" "%~dp0\ job2.exe
IF %ErrorLevel% EQU 0 (
    START /min "" "%~dp0\job4.exe) 
)ELSE (
    ECHO job4 did not run because job2 failed
TIMEOUT /t 180

Currently, the jobs don't work.

0 + 2

windows

batch

batch-processing

dependencies

SamErde

10/30/22, 12:45 PM

Are the jobs failing when you run the batch file manually, or is the scheduled task failing to run? What error[s] are you getting? Do any of the processes require elevation, interaction, or start a windowed application?

JosefZ

10/30/22, 10:02 PM

**1st** there are syntax errors (missing trailing double quotes). **2nd** Even if you fix those, e.g. `START /min "" "%~dp0job1.exe"` then `job1` should run in parallel (asynchronously). **3rd** You should initially [set `ErrorLevel` to 0](https://superuser.com/a/649329/376602) (read more about ErrorLevel at https://ss64.com/nt/start.html).

Elon Musk

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EN: How to write a batch job query that has wait times, dependencies and conditional execution?

TH: วิธีเขียนแบบสอบถามงานแบบกลุ่มที่มีเวลารอ การพึ่งพา และการดำเนินการตามเงื่อนไข

RO: Cum se scrie o interogare de job batch care are timpi de așteptare, dependențe și execuție condiționată?

RU: Как написать запрос пакетного задания, который имеет время ожидания, зависимости и условное выполнение?

VI: Làm cách nào để viết một truy vấn công việc hàng loạt có thời gian chờ, phụ thuộc và thực thi có điều kiện?

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