topic tBufferOutput is empty in Talend Studio

tBufferOutput is empty

JayQueue — Fri, 15 Nov 2024 23:08:14 GMT

Hello,

I'm working on a parent/child job.

Child processes pictures and fills a tBufferOutput with personname and filename. The tLogRow component shows me that's ok.

I want to re-use that tBuffer in a parentjob.

Created a tRunjob, copied Child Job Schema and use a tBufferInput. When I use a tLogRow it shows as empty.

The tBufferInput has the correct schema.

Any ideas? 🙂

Thanks!

Re: tBufferOutput is empty

gjeremy1617088143 — Thu, 10 Mar 2022 10:41:06 GMT

Hi, you have to check in Advanced settings of tRunJob propagate the child result to the output schema.

Send me love and kudos

Re: tBufferOutput is empty

JayQueue — Thu, 10 Mar 2022 10:43:09 GMT

Hi @guenneguez jeremy ,

Yes, first thing I tried.

Re: tBufferOutput is empty

JayQueue — Thu, 10 Mar 2022 10:50:08 GMT

When I put the tLogRow directly behind the tRunJob with no tBufferInput it outputs the data...

Does that mean I don't have to use the tBufferInput?

Re: tBufferOutput is empty

gjeremy1617088143 — Thu, 10 Mar 2022 11:01:00 GMT

yes cause it create an output flow on the tRunJob component

Re: tBufferOutput is empty

JayQueue — Thu, 10 Mar 2022 11:16:20 GMT

Good to know, Today I learned 🙂 Thanks!

Re: tBufferOutput is empty

Anonymous — Fri, 11 Mar 2022 02:18:12 GMT

Hello,

To pass flow from father job to child job, you are able to use context variables, see

https://community.talend.com/s/article/Passing-a-value-from-a-parent-Job-to-a-child-Job-OPRy5

or use joblet feature in Talend subscription solution.

You may need to return a value or rows from a child Job to the parent Job for further use and this KB article shows the best practice of how to pass a value with a tBufferOutput component from a child Job to the parent Job.

https://community.talend.com/s/article/Returning-a-value-from-a-child-Job-to-the-parent-Job-DqbEu

Hope it helps.

Best regards

Sabrina