Discuss Talend Talend-Core-Developer Exam Topic 6 Question 3

You are building a complex Job and want to explore different options for optimizing execution times using parallelism.

How can you identify execution times to verify the effectiveness of your changes?

Choose 2 answers

AObserving the execution time in the Code view.

BHeading the time stamps from the execution console in the Run view.

CComparing time stamp in Trace Debug mode.

DObserving the execution times that annotate the flows in the Designer.

Suggested Answer: B, D

To identify execution times to verify the effectiveness of your changes, you can use one of these methods:

Reading the time stamps from the execution console in the Run view. This method allows you to see the start and end time of each subjob and component in your job, as well as the total execution time of the job. You can also see the number of rows processed by each component and the status of the job (success or failure).

Observing the execution times that annotate the flows in the Designer. This method allows you to see the execution time of each flow (main, lookup, reject, etc.) between components in your job. You can also see the number of rows processed by each flow and the throughput (rows per second) of each flow.

You cannot use these methods to identify execution times:

Observing the execution time in the Code view. This method does not show you the execution time of your job or its components, but only the generated code of your job in Java or Perl. The Code view is useful for debugging or customizing your code, but not for measuring performance.

Comparing time stamps in Trace Debug mode. This method does not show you the execution time of your job or its components, but only the values of each column for each row processed by your job. The Trace Debug mode is useful for tracing data quality or transformation issues, but not for measuring performance. Reference: Talend Open Studio: Open-source ETL and Free Data Integration | Talend, [Run view - 7.3], [Designer - 7.3], [Code view - 7.3], [Trace Debug mode - 7.3]

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30 comments · newest first

Fabiola 10 months ago

D seems a bit off, not sure about that one.

Bobbye 10 months ago

C is a solid choice too, don't sleep on it!

Shaunna 11 months ago

Wait, can you really trust the timestamps in the console?

Nada 11 months ago

Definitely agree with A! It's super useful.

Verdell 11 months ago

I think A and B are the best options.

Adelle 11 months ago

I feel like observing execution times in the Designer could be useful, but I’m torn between that and the console option.

Margot 11 months ago

Comparing time stamps in Trace Debug mode seems familiar, but I can't recall if it's the most effective method for this question.

Matt 12 months ago

I remember practicing with the execution console, so I feel like heading the time stamps from there could be a good choice.

Bernardo 12 months ago

I think observing execution times in the Code view might be one option, but I'm not entirely sure about the second one.

Eugene 12 months ago

I feel pretty confident about this one. I've used the execution time annotations in the Designer before, and I know the Run view and Trace Debug mode can provide some really helpful insights. I'll make sure to try out a few different approaches to verify the effectiveness of my changes.

Adelina 1 year ago

I'm a bit confused by the wording of the question. Does "observing the execution time in the Code view" mean just looking at the code and estimating, or is there some specific tool or feature I should be using?

Coletta 1 year ago

Okay, I think I've got a good strategy here. I'll start by looking at the execution times in the Designer to get a high-level view, then dig into the details in the Run view and Trace Debug mode.

Gary 1 year ago

Hmm, this seems like a tricky one. I'll need to think carefully about the different options and how they might apply to my situation.

Isadora 2 years ago

I think D) Observing the execution times that annotate the flows in the Designer is the most effective way to identify execution times.

Maryann 2 years ago

I believe C) Comparing time stamp in Trace Debug mode could also be helpful.

Barrie 2 years ago

I prefer B) Heading the time stamps from the execution console in the Run view.

Jaime 2 years ago

Execution times annotating the flows in the Designer? Now that's a real power move, if you ask me.

Carman 1 year ago

↳ replying to Jaime

D) Observing the execution times that annotate the flows in the Designer.

Ashanti 1 year ago

↳ replying to Jaime

A) Observing the execution time in the Code view.

Daryl 2 years ago

I think A) Observing the execution time in the Code view is a good option.

Johnna 2 years ago

Comparing time stamps in Trace Debug mode? That's like trying to catch the Flash with a butterfly net.

Heidy 2 years ago

Timestamps in the execution console, huh? I'll be sure to bring my sundial to the next code review.

Hubert 1 year ago

↳ replying to Heidy

B) Heading the time stamps from the execution console in the Run view.

Dominga 1 year ago

↳ replying to Heidy

A) Observing the execution time in the Code view.

Aleshia 1 year ago

↳ replying to Heidy

B) Heading the time stamps from the execution console in the Run view.

Delbert 1 year ago

↳ replying to Heidy

A) Observing the execution time in the Code view.

Zoila 2 years ago

The execution time in the Code view? Really? That's like trying to watch paint dry while running a marathon.

Corazon 1 year ago

↳ replying to Zoila

C) Comparing time stamp in Trace Debug mode.

Buffy 2 years ago

↳ replying to Zoila

B) Heading the time stamps from the execution console in the Run view.

Joanna 2 years ago

↳ replying to Zoila

A) Observing the execution time in the Code view.

Talend-Core-Developer Exam - Topic 6 Question 3 Discussion