Hadoop - Performance Tuning
Which of the following is the correct syntax to set the memory allocated to each map task in a Hadoop job configuration?
Which of the following is the correct syntax to set the memory allocated to each map task in a Hadoop job configuration?
easy📝 Syntax Q12 of 15
Step-by-Step Solution
Solution:
Step 1: Recall the standard memory parameter for map tasks
The correct parameter to set map task memory ismapreduce.map.memory.mb.Step 2: Verify syntax correctness
mapreduce.map.memory.mb=2048matches the exact syntax used in Hadoop configurations.Final Answer:
mapreduce.map.memory.mb=2048-> Option AQuick Check:
Map task memory =mapreduce.map.memory.mb[OK]
Quick Trick: Map memory uses mapreduce.map.memory.mb [OK]
Common Mistakes:
- Swapping map and reduce memory parameters
- Using incorrect parameter names
- Adding extra words like 'task' incorrectly
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