Topic 2 Question 69
Which is the preferred method to use to avoid hotspotting in time series data in Bigtable?
Field promotion
Randomization
Salting
Hashing
解説
By default, prefer field promotion. Field promotion avoids hotspotting in almost all cases, and it tends to make it easier to design a row key that facilitates queries. Reference: https://cloud.google.com/bigtable/docs/schema-design-time-series#ensure_that_your_row_key_avoids_hotspotting
コメント(5)
Correct Answer : A
👍 4[Removed]2020/03/21Answer: A Description: By default, field promotion is done to avoid hotspotting
👍 4[Removed]2020/03/29I would choose A For TIMESLIDERS salting was problematic. Despite a barrage of tests, it was very difficult to choose a salt value that both distributes activity across nodes and still remained valid as their system scaled up and down. Aa such, they decided to use field promotion, which allowed them to avoid hotspotting in almost all cases, and tended to make it easier to design a row key that facilitates queries. https://medium.com/@duhroach/cloud-bigtable-time-series-data-eecc32dd9cf2
👍 2Venson2021/06/16
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