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Hitachi Vantara HCE-5920 Exam - Topic 6 Question 8 Discussion

Actual exam question for Hitachi Vantara's HCE-5920 exam
Question #: 8
Topic #: 6
[All HCE-5920 Questions]

You are running a Pentaho MapReduce (PMR) job that is facing on Hadoop. You review the YARN logs and determine that the mappers are generating out of memory errors.

Which action will resolve the mapper errors?

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Suggested Answer: A

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Harris
4 months ago
Wait, can increasing the number of mappers really fix out of memory errors?
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Shawana
4 months ago
Wow, I didn't know you could edit the startup script for that!
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Raina
4 months ago
Not sure about D, that doesn't seem related to memory issues.
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Kallie
4 months ago
I think C is the right move here. JVM settings are crucial!
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Hubert
4 months ago
Definitely A, increasing memory should help.
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Linette
5 months ago
I don't recall much about the "Enable blocking" option, but it seems like it wouldn't directly address memory issues. I think we should focus on memory settings instead.
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Jani
5 months ago
I feel like setting the JVM memory parameters in the User Defined tab is the right approach. We did a similar question in class about tuning memory settings.
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India
5 months ago
I'm not entirely sure, but I think increasing the number of mapper tasks could just lead to more issues if the mappers are already running out of memory.
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Pamella
5 months ago
I remember we discussed increasing memory settings in the Pentaho server startup script during our last practice session. That might help with the out of memory errors.
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Joanna
5 months ago
No problem, I've done something like this before. I'm pretty confident I can come up with the right expression to copy the DOB value.
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Isabella
5 months ago
This is a good test of our understanding of the indexing process. I'll methodically go through each option and think about how it relates to index time processing to make sure I get this right.
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France
5 months ago
Okay, I think I've got this. The key is to look at the shape of the utilization line on the chart and match it to the options provided. Based on the description, option D seems to be the best fit - a high utilization level that drops off sharply.
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