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Each PolarDB cluster consists of one primary node and one or more read-only nodes. The system only support manually switch over services from the primary node to a read-only node.
Suggested Answer: B
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PolarDB cluster supports Manually and Automatically switch over services between primary and read-only nodes.
https://www.alibabacloud.com/help/doc-detail/141229.htm?spm=a2c63.p38356.b99.113.36df231dK2DVX0
9 comments · newest first
LA
Larae
12 months ago
Yeah, read-only nodes are just for scaling reads, not writes.
JO
Jonell
1 year ago
Wait, really? No auto failover? That seems risky.
DA
Daren
1 year ago
Totally agree, manual switch makes sense for control.
HY
Hyman
1 year ago
I thought it was automatic switching, guess not.
FR
Francine
1 year ago
That's correct, only one primary node!
NA
Nakisha
1 year ago
Hmm, I'm a bit unsure about this one. I know centralized structures can have some downsides, but I'll need to carefully consider each option to determine the best answer.
ST
Stefany
1 year ago
I feel like the right answer might involve keeping the original, like option B. We practiced something similar where we had to safeguard documents for the loan term, right?
PE
Penney
1 year ago
I remember something about 'own use' being defined really strictly. I think Mr. Jamison's case might be a bit tricky since he was a former patient.
LU
Luis
1 year ago
I remember studying the basic components of ultrasonic testing, and I think a transducer is definitely essential for the system.