Topic 1 Question 53
You are designing a schema for a table that will be moved from MySQL to Cloud Bigtable. The MySQL table is as follows:
How should you design a row key for Cloud Bigtable for this table?Set Account_id as a key.
Set Account_id_Event_timestamp as a key.
Set Event_timestamp_Account_id as a key.
Set Event_timestamp as a key.
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correct answer is B https://cloud.google.com/bigtable/docs/schema-design
👍 20salgabri2020/11/10- 正解だと思う選択肢: B
https://cloud.google.com/bigtable/docs/schema-design#row-keys
It's B because : "Row keys that start with a timestamp. This pattern causes sequential writes to be pushed onto a single node, creating a hotspot. If you put a timestamp in a row key, precede it with a high-cardinality value like a user ID to avoid hotspotting."
👍 3maxdanny2022/07/25 - 正解だと思う選択肢: B
B is correct
👍 3tomato1232022/08/19
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