Topic 1 Question 93
You're using Bigtable for a real-time application, and you have a heavy load that is a mix of read and writes. You've recently identified an additional use case and need to perform hourly an analytical job to calculate certain statistics across the whole database. You need to ensure both the reliability of your production application as well as the analytical workload. What should you do?
Export Bigtable dump to GCS and run your analytical job on top of the exported files.
Add a second cluster to an existing instance with a multi-cluster routing, use live-traffic app profile for your regular workload and batch-analytics profile for the analytics workload.
Add a second cluster to an existing instance with a single-cluster routing, use live-traffic app profile for your regular workload and batch-analytics profile for the analytics workload.
Increase the size of your existing cluster twice and execute your analytics workload on your new resized cluster.
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コメント(17)
Answer is C
When you use a single cluster to run a batch analytics job that performs numerous large reads alongside an application that performs a mix of reads and writes, the large batch job can slow things down for the application's users. With replication, you can use app profiles with single-cluster routing to route batch analytics jobs and application traffic to different clusters, so that batch jobs don't affect your applications' users.
https://cloud.google.com/bigtable/docs/replication-overview#use-cases
👍 15[Removed]2022/09/05- 正解だと思う選択肢: C
how can you use multi-cluster routing when you want to go to old instance with the regular load and to the new one with the analytical node ? MULTI will go to the nearest one...
Multi-cluster routing automatically routes requests to the nearest cluster in an instance. If the cluster becomes unavailable, traffic automatically fails over to the nearest cluster that is available. Bigtable considers clusters in a single region to be equidistant, even though they are in different zones. You can configure an app profile to route to any cluster in an instance, or you can specify a cluster group that tells the app profile to route to only some of the clusters in the instance.
👍 4MisuLava2022/10/25 - 正解だと思う選択肢: B
I meant to vote B not C
👍 3MisuLava2022/10/25
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